EP3056297A1 - Use of a feeder insert and method of preparing a casting mould with vertical mould splitting - Google Patents

Abstract

The invention relates to a use of a feeder insert (24, 24 ') with a volume center of gravity displaced relative to the opening axis (62) of its passage opening (60) in the production of a mold (1) with vertical division of form and a feeder insert (24) attached to the mold (1) , 24 ') for the feed of the mold cavity (26) during the casting process, wherein the feeder insert (24, 24 ') is positioned in a prefabricated molded part (20, 22, 34) of the casting mold (1) such that its opening axis (62) extends below its center of gravity.

Description

The present invention relates to the use of a feeder insert with a volume center of gravity displaced relative to the opening axis of its passage opening in the production of a mold with a vertical division of form and a feeder insert attached to the mold for the feed of the mold cavity during the casting process. Furthermore, the invention relates to a method for producing a mold with vertical division of form and an attached to the mold feeder insert for feeding the mold cavity during the casting process. The invention also relates to corresponding molds and feeder inserts.

Single or multi-part feeder systems are used in large numbers and variety in the casting of metals in molds. The feeder systems used, also referred to as feeder, are largely surrounded by a molding material used to make the mold, such as foundry sand, and thereby held in position relative to the mold cavity of the mold. Known feeders have a feeder cavity with a passageway for the liquid metal, whereby a connection between the mold cavity and the feeder cavity consists. A subset of the metal filled in the mold cavity during the casting process enters thereby into the feeder and thus into the feeder cavity. The liquid metal present in the feeder system should be able to flow back into the casting mold during the solidification process, which is associated with a contraction of the casting metal, in order to compensate for or compensate for the shrinkage of the casting up to the solidus temperature.

For this purpose, the metal which has reached the feeder insert is kept in the liquid state until the metal present in the interior of the casting mold has already solidified or already partially solidifies into the casting. At least part of the feeder insert is therefore usually made of an insulating and / or exothermic material. Exothermic materials have the characteristic that they are ignited when entering liquid metal in the feeder cavity of the feeder insert, due to the prevailing temperatures. From this point, an exothermic reaction automatically occurs within the material of the feeder insert, so that heat energy is released to the metal in the feeder cavity over a certain period of time. Thus, the metal in the feeder system and in the transition region to the mold cavity of the mold is maintained in the liquid state.

Also in the field of casting, the productivity requirements have increased significantly, which is why we looked for ways to automate the mold production and to make the production of molds for castings in large quantities more efficient. For this purpose, automated vertical green sand molding equipment (eg DISAMATIC molding machines from DISA Industries A / S) has been developed. These molding machines have two model halves, of which a first model half are mounted on an exclusively linearly adjustable plunger and the second model half on a pivotable mold plate, also referred to as a pivot plate. The pivotal mold plate can be moved between a horizontal orientation in which the second model half is equipped with a feeder system and a vertical orientation back and forth. In its vertical orientation, which corresponds to the working position of the pivot plate, the pivot plate is parallel to the plunger with the first half of the model, also referred to as a press plate, movable. Press plate and pivot plate limit at least laterally a molding chamber, in which the molding material is filled to form at least one mold half of a mold. The filled molding material is then compacted by a relative movement of the pressure plate and the swivel plate and thus produces a mold half or a molded part. An arranged on the model half on the pivot plate feeder system, which thus arranged in the mold chamber during the manufacture of the molding are, is included within the produced molded part. Such feeder systems are aligned with their feeder longitudinal axis approximately perpendicular to the pivotable mold plate, so that the passage opening of the feeder insert during casting is approximately horizontal. In order to keep the feed volume low, known feeder inserts also have a volume center of gravity offset relative to the passage opening, which is arranged during the casting process, in particular above the opening axis of the passage opening.

From the publications EP 2 489 450 A1 ( DE 20 2011 103 718 U1 ) and DE 10 2013 209 775 B3 Feeder systems are known for use in making a divisible mold. The disclosed arrangements comprise a mold plate and / or a mold model and further at least one feeder system with a feeder element and a feeder insert. The feeder element and the feeder sleeve define the feeder cavity for receiving the liquid metal. The feeder element has a first end, with which this is usually directly on the mold plate and / or the mold model in abutment or seated. The feeder element has a passage opening with which the connection between the mold cavity of the mold and the feeder cavity of the feeder system is ensured. In this case, the passage opening is bounded by a side wall of the feeder element.

In order to be able to absorb the forces acting on the known feeder systems when compacting the molding material used to produce the molded part of the casting mold, according to FIG EP 2 489 450 A1 the side wall around the passage opening formed deformable. The side wall is deformable such that there is a reduction in the distance between the first end of the feeder element and the second end of the feeder element, to which the feeder insert of the feeder system is fastened via a mounting element on the feeder element. This results in a total reduction of the total height of the feeder system.

Alternatively, according to the DE 10 2013 209 775 B3 proposed to form the feeder element and the feeder insert relative to each other displaceable. Thus, the resulting compression pressure is compensated by pushing together the feeder system perpendicular to the opening axis of the passage opening at this known feeder system during the compression of the molding material.

A disadvantage that can occur in some cases when using the known feeder systems, is due to the center of gravity of the feeder system staggered passage opening and the passage opening limiting side wall which is seated at the first end of the feeder element on the mold plate. The side wall, which serves as a footprint of the feeder system on the mold plate or the mold model, is also arranged offset to the center of gravity of the feeder cavity, so that upon compression of the molding material, a force acting in the direction of the opening axis of the passage opening generates a tilting moment in the area of the footprint. Especially at high compression pressures in the mold chamber, the feeder system may tilt slightly so that the footprint at the first end of the feeder element rests unevenly on the mold plate or the mold model. Thus, under certain circumstances, a secure sealing in the transition region between the feeder and the mold cavity is no longer guaranteed and there may be disadvantages in the casting process, for example, an entry from the molding material into the mold cavity or an unclean training to be formed at the transition from the casting to the feeder breaking edge.

Based on the above-mentioned problem, the invention has for its object to show a use of a feeder insert in the production of a mold and a method for producing a mold with vertical shape division, with which the production of a vertically divisible mold in a simplified manner while avoiding individual or all above described disadvantages is made possible.

The invention solves the underlying object by the use of a feeder insert with the features of claim 1. In particular, the feeder insert is positioned in a prefabricated molding of the mold, that its opening axis extends below its center of gravity.

The invention thus relates to the use of a feeder insert, which is suitable for producing a mold with vertical shape division. Such molds can be made for example with vertical molding equipment, such as DISAMATIC molding machines DISA Industries A / S. According to the invention, when using a feeder insert with a volume center of gravity displaced relative to the opening axis of its passage opening, the feeder insert is to be positioned in a prefabricated molded part of the casting mold in such a way that its opening axis preferably has an approximately horizontal orientation and lies or runs below its center of gravity. The invention is based on the finding that the dosing of liquid metal in the mold cavity by a Feeder can be ensured, which is arranged laterally to a mold cavity to be generated. In addition, the production of vertically divisible molds is advantageously simplified, as can be dispensed with the use of a feeder system with a compressible portion or two relatively movable elements held. The casting mold to be produced can thus be produced without consideration of constructional conditions of a feeder system located in the forming chamber during the production of the molded part. When using the feeder insert according to the invention, the (not compressible) compressible insert, which is preferably not compressible (or only to a small extent), is positioned in the preform of the molded part after it has been prefabricated. In order to be able to position the feeder insert in the prefabricated molded part, the molded article is equipped with holding means for the feeder insert during its production or the holding means are formed on the molded article. The equipping of the molding with holding means or the formation of holding means on the molding is preferably carried out during prefabrication of the molding in the molding plant.

According to a preferred embodiment of the invention, the feeder insert is used for positioning in the prefabricated molded part of the casting mold in a recess in the prefabricated molded part of the casting mold. The provision of a recess is an advantageously simple way to position the feeder insert within the molding of the mold can. The recess produced in the molding as a holding means in the molded part takes on at least a portion of the preferably parallel to the opening axis of the passage opening extending feeder insert. In an alternative embodiment, the feeder insert is received via wall portions in the recess in the molding, which form an area in the circumferential direction around the opening axis of the passage opening of the feeder insert around. When positioning the feeder insert in the recess, make sure that the opening axis of the passage opening extends below the volume center of gravity of the feeder insert. In order to avoid mispositioning of the feeder insert in the molded part, recess and feeder insert are preferably designed such that they define a preferred orientation for the insertion of the feeder insert into the recess.

Preferably, the mold is produced with a vertical mold division and an attached to the mold feeder insert for feeding the mold cavity during the casting process in a molding plant with a (so-called endless) molding strand. The casting mold, which is composed of at least a first and a second molded part is produced by the two mold parts to form a molding strand be put together. A special embodiment of the invention provides that one or both moldings are produced in separate molding machines. In this special case, the prefabricated molded parts are then fed to said molding plant for producing the casting mold, in which the separately prefabricated molded parts are joined together. The insertion of a feeder insert in a respective molded part is usually carried out immediately after the production of a separately prefabricated molded part or during manufacture, in particular the assembly of the prefabricated molded parts to the casting mold.

According to another embodiment of the inventive use of the feeder insert is positioned in a prefabricated molding of the mold, wherein the molding is prefabricated in one or the molding line with an endless mold strand. The prefabrication of the molded parts and the joining of the prefabricated molded parts and the associated production of the mold is preferably carried out with a single molding plant, wherein the actual prefabrication and thus the production of the individual moldings using a molding material expires. After producing the molded parts, whereby the prefabrication of the individual molded parts is completed, the feeder insert is positioned in a respective associated molding, preferably inserted into a recess in the molding. After inserting the feeder insert, the molded part is then combined with a molded part previously produced by the molding plant to form a casting mold. To produce the casting mold, the prefabricated molded parts are preferably lined up one behind the other to form an endless strand of molded parts.

Preferably, the molded part is prefabricated in a molding chamber by molding material injected into the mold chamber and then preferably compressed the injected molding material. Preferably, a predetermined amount, or a presettable amount or mass of molding material is filled into the mold chamber, in particular shot. With the injection of the molding material a shortened filling of the mold chamber is achieved, whereby the time for the production of a molded part is advantageously shortened. According to one embodiment of the invention, the molding material is preferably injected under high pressure into the molding chamber. The molding chamber is preferably completely filled by the molding material used to form the molding. Optionally, it is provided that after injection of the molding material into the molding chamber, the molding material is further compressed. This is preferably done by applying the molding material with a compressive force.

Preferably, the molding is prefabricated in a molding chamber which is partially bounded by a positive model of at least a portion of the feeder sleeve. The positive-chamber-defining positive model is an image of at least a portion of the feeder insert to be positioned in the molded part. Preferably, a recess in the molded part is produced by means of the positive model, into which the feeder insert is inserted at least with a section extending in the direction of the opening axis or a region extending circumferentially about the opening axis. Preferably, the feeder insert is positioned in the molded part, or is held in the molded part such that the opening axis of its passage opening extends below the volume of gravity of the feeder cavity. The opening axis of the passage opening of the feeder insert also has a preferably horizontal orientation when used.

Preferably, the mold chamber is formed in a molding line with a pivot plate and a press plate and the positive model of said portion of the feeder sleeve is arranged on the pivot plate or the press plate. By arranging the positive model on the press plate or the pivot plate is effected in an advantageous manner that the recess provided for receiving the feeder insert during production of the molded part in a preferably vertical division surface of the molded part to be produced. By means of the pivot plate and the press plate, the vertical dividing surfaces of the molded part are preferably formed, are generated in the contour regions of a portion of the mold cavity of the molded part to be produced. The positive model imaging at least one section of the feeder insert preferably protrudes approximately perpendicularly from the model half for the molded part arranged on the press plate or swivel plate. This advantageous embodiment of the invention can be combined with other preferred aspects of the present invention. With regard to preferred combinations, what has been said at the corresponding text passages applies correspondingly.

Preferably, the feeder insert is inserted positively and / or non-positively into the recess. Between the wall surfaces of the feeder insert and the wall surfaces bounding the recess, a frictional connection or positive locking is preferably effected. Thus, the feeder insert is firmly and at the same time safely added during the casting process in the recess provided. As a result, an unwanted movement of the feeder insert in the recess and thus relatively avoided relative to the molding in an advantageous manner. The feeder insert is preferably fixed in the insertion direction, that is to say in the direction of the opening axis, by means of a frictional connection, in particular by a frictional force between the abutting wall surfaces of feeder insert and recess. In addition, the feeder insert and the recess provided for it in shape are adapted to each other so that the feeder insert with a preferred orientation is inserted into the recess in the molding. Preferably, the feeder insert can be positioned in only a single orientation relative to the recess in the molded part. The recess and the feeder insert corresponding therewith form a positive connection, so that the feeder insert in the recess can not be displaced or rotated transversely to the insertion direction or about an axis extending in the insertion direction. The insertion direction is to be understood as the direction in which the feeder insert is inserted into the recess or inserted. The opening axis of the passage opening and the insertion of the feeder insert in the molded part preferably extend parallel to each other.

Preferably, the feeder insert is automatically inserted into the recess manually or by means of an insertion device. The positioning of the feeder insert in the molding, preferably the insertion of the feeder insert into the recess in the molding, thus takes place either manually, ie by hand, or by machine using a loading device. The positioning or insertion is carried out after prefabricating the molded part in the molding chamber of the molding plant, which requires that the production of the molded part itself is completed. The feeder insert is thus subjected to no compression process, as is customary for the production of a molded part. Thus, the feeder insert used in the molding itself does not need to be compressible (in particular compressible). The insertion of the feeder insert in the molded part is preferably carried out after the expulsion of the prefabricated molded part from the molding chamber. Either the feeder insert is inserted into the molded part before the molded part is brought into contact with a previously produced molded part via the mutually facing dividing surfaces, or after the produced molded article is assembled with a previously prefabricated molded part via the dividing surfaces into a casting mold. The time to be chosen for the above-described insertion of the feeder sleeve is also determined by which area of the mold cavity of the mold the feeder sleeve is to be inserted. The insertion of the feeder insert with an (automated working) insertion device has the advantage over manual insertion that the process of insertion is accelerated and thus the cycle times for joining the preferably sequentially lined moldings are reduced to a continuous strand of molds.

Preferably, in an inventive use of the feeder insert is provided that the feeder insert has a first end with a passage opening, a second end and one or more extending from the first to the second end side walls which define a feeder cavity for receiving liquid metal, and a has arranged on the first end wall portion, the one forms lateral wall portion of the mold cavity of the mold. By means of the arranged at the first end of the feeder insert wall portion of the feeder cavity is preferably limited in the direction of the preferably adjacent mold cavity of the mold. The sidewall extending from the first to the second end defines the riser cavity opposite at least a portion of the molded article being formed. The passage opening in the wall section at the first end forms a constriction and preferably a break core on the feeder insert, which allows a simplified separation of the casting and feeder after casting. By means of the wall section at the first end of the feeder insert, due to the predetermined positioning of the feeder insert in the molded part, at least one lateral wall region of the mold cavity of the mold is formed. By the wall portion at the first end and surface areas of the dividing surface of a first molded part of a mold can be formed.

The wall section preferably has at the first end of the feeder insert an inner wall surface facing the feeder cavity, which delimits a cavity section which tapers in the direction of the passage opening. In the transition region between the mold cavity of the mold and the feeder cavity of the feeder so preferably a sharp breaking edge is generated; As a result, the separation of the feeder insert is simplified by the subsequent casting in an advantageous manner. Due to the offset to the volume center of gravity arranged passage opening at the wall portion of the first end of the feeder insert, the cavity portion tapers regularly non-uniform around the passage opening around; The inner wall surface of the wall section has surface areas with different angles of inclination to the opening axis of the passage opening. Preferably, the wall surface delimiting the tapered cavity section has a shape similar to an oblique truncated cone.

The wall section arranged at the first end of the feeder insert preferably has a planar wall surface section facing the mold cavity of the casting mold. With the configuration of a planar wall surface section at the first end of the feeder insert, a structurally simple separation between the mold cavity and the wall section of the feeder insert forming a wall surface of the mold cavity is achieved. Depending on the shape of the casting to be produced, the wall surface of the wall section facing the mold cavity at the first end of the feeder insert in an alternative embodiment has a graduated one Shape or partially on an inclined course to the opening axis of the passage opening.

According to another embodiment of the invention it is provided that one or more side walls protrude substantially perpendicular to the wall portion or that the at least one side wall is aligned approximately parallel to the opening axis of the passage opening. Thus, the feeder insert has a preferably in the direction of the opening axis extending feeder cavity, which has a nearly identical cross-section from the first to the second end of the feeder insert. The side walls are preferably on its outside and inside plan, ie without paragraphs in the wall, formed, whereby the insertion of the feeder insert with its outer wall surface of the side wall in a recess in the molding and the drainage of the liquid metal in the direction of the passage opening in the feeder cavity is relieved.

Preferably, in the passage section having wall portion additionally one or more openings for venting the feeder cavity and / or arranged therein engaging means of an insertion device. In the use of the feeder insert, it is advantageously ensured via the vent opening that no gas cushion can form in the feeder cavity above the liquid metal, in particular during the filling process. Optionally occurring during the casting or released gases can easily escape through the vent. Preferably, the vent opening is arranged at a horizontal arrangement of the opening axis of the passage opening above the passage opening at the wall portion at the first end of the feeder insert. Preferably, the vent openings can be used simultaneously for engaging holding means of a loading device, resulting in a preferred orientation when aligning or equipping at a feeder insert in the molding positioning insertion means with the feeder insert results. The vent openings preferably have a diameter which is different from the diameter of the passage opening, whereby a maladjustment of the feeder insert on the loading device is basically avoided. Preferably, the holding means of the insertion correspond positively with the vent openings in the wall portion of the feeder insert, whereby the feeder insert is securely fixed to the insertion device during insertion or positioning in the molded part. This advantageous embodiment of the invention is in each case with the independent aspects of the present Combination invention. With regard to preferred combinations, what has been said at the corresponding text passages applies correspondingly.

According to a preferred embodiment of the invention, the feeder insert with respect to its longitudinal extension in the direction of the opening axis by no more than 5%, preferably not more than 2% non-destructible compressible. Due to the fact that the feeder insert is positioned in the molded part after the molding material for the molded part has been compressed in the mold chamber, the feeder insert or parts thereof need not be deformable or displaceable relative to each other. Therefore, the structural design of the feeder sleeve used over the known feeder systems is significantly simplified. Depending on the materials used for the design of the feeder insert this has a predetermined deformation capacity, which is preferably in the direction of the opening axis, however, not more than 5%, preferably not more than 2% of its original initial length.

The feeder insert preferably has an outer cross-section arranged perpendicular to the opening axis, which is preferably selected from the group consisting of oval, non-round, edge-rounded rectangle and polygon. Due to the outer cross section, which is preferably not rotationally symmetrical, a feeder insert after insertion into the molded part, in particular in the recess in the molded part, in its orientation, in particular in the circumferential direction to the opening axis can not be changed. The outer cross-section of the feeder sleeve is chosen such that the feeder sleeve can be preferably used in only a single orientation with respect to the corresponding shape of the recess in the insertion direction of the same.

In a preferred embodiment of the invention, the feeder insert has an increasing from the second end in the direction of the first end outer cross-sectional area. Preferably, the outer cross-sectional area gradually increases over a portion from the second end toward the first end. The feeder insert has the shape similar to a truncated cone. The cross-sectional area at the second end preferably corresponds to the cross-sectional area at the bottom of the recess, wherein the recess and the feeder insert in shape correspond to each other such that the outer side of the side wall of the feeder insert, when it is inserted to the bottom of the recess in this, only with reaching its end position in the recess, comes into contact with the inside of the side wall of the recess, so that a frictional connection between the wall surfaces is generated. About the preferred on friction based traction, the feeder sleeve is kept clamped in the recess. In one embodiment of the invention it is provided that the feeder insert is received over its entire length between the first and second end in the recess. An alternative embodiment provides that the feeder insert is taken only in sections, for example, over two-thirds of its total length or less in the recess in the molding.

Preferably, the feeder insert is open at its second end, which is arranged opposite the wall section with the passage opening. In addition, a simplified embodiment of the feeder insert is achieved, wherein the feeder insert, for example, may be integrally formed, which further simplifies its manufacture. Under one piece is preferred to understand the production in one piece. Alternative embodiments of the feeder insert provide that this consists of a part, but which may be joined or assembled from several pieces. Due to the feeder sleeve, which is open at its second end, the feeder cavity, into which the liquid metal enters during the casting process, is delimited by the base of the recess into which the feeder insert is inserted, that is to say by a wall surface of the molded part. The reason of Aussparrung preferably runs parallel to the wall portion at the first end of the feeder insert.

According to a further embodiment of the invention, the feeder cavity defined by the at least one side wall preferably has an internal cross-sectional area which increases from the first end to the second end of the feeder insert. A one-piece feeder insert, which consists of a single piece, can advantageously be easily removed from the production mold after its production. By extending from the first to the second end cross-sectional area is effected by a slight movement preferably in the direction parallel to the opening axis that the inside of the wall surface detach from the manufacturing mold and the prepared feeder insert can be removed without damage from the manufacturing mold. In one embodiment of the invention, the limited from the inside of the side wall feeder cavity has the shape similar to a cone truncated pyramid.

Another embodiment of the invention provides that the feeder insert is formed from exothermic molding material or at least partially comprises exothermic molding material and / or is formed from insulating molding material or at least partially comprises insulating molding material. With the use of exothermic molding material is the Keeping the metal in the feeder insert extended in the liquid phase, since heat energy is generated by the exothermic material of the feeder insert, which keeps the metal in the feeder insert at a temperature preferably above the solidus temperature. Alternatively, the feeder insert may be formed of an insulating material which impedes the dissipation of heat to the portions of the molding surrounding the feeder insert such that the metal in the feeder cools more slowly than the metal in the mold cavity of the mold. In a feeder sleeve composed of multiple pieces, portions of the feeder sleeve may be formed of exothermic material and portions of insulating material. To preserve the configuration of a sharp breaking edge to be produced casting, the wall portion having the passage opening is formed of an insulating material. The one or more side walls connected to the first wall portion may be made of exothermic material.

It is preferred that the feeder insert on the inside on its side wall preferably has one or more integrally formed webs or wall sections on a wall region lying above the opening axis when using the feeder insert, which subdivide the feeder cavity in a chamber-like manner. By means of an inwardly projecting web or wall section, for example configured as so-called Williams strip or Williams wedge, premature formation of a casting skin on the surface of the liquid metal in the feeder cavity is counteracted. At the same time its effect, namely the liquid retaining the liquid metal therein, is further improved.

Preferably, the web or wall section extends parallel to the opening axis of the passage opening along a portion of the side wall. The web preferably extends along the inside of the feeder cavity from the first end to the second end of the feeder sleeve. The webs or wall sections, which are also known by the term Williams strip or Williams wedge, may be a separately formed insertion part which is inserted into the feeder cavity of the feeder insert. Alternatively, the or the webs are integrally formed on the inner contour of the feeder insert and thus an integral part of it. Preferably, a molded web is generated during the manufacture of the feeder insert and includes, for example, a prism shape, wherein the web is in use of the feeder sleeve (ie in the casting operation) at the upper end of the feeder cavity. This advantageous embodiment of the invention is in each case with the independent aspects of the present invention combined. With regard to preferred combinations, what has been said at the corresponding text passages applies correspondingly.

A further aspect of the invention relates to a method for producing a mold with a vertical mold division and a feed insert attached to the mold for feeding the mold cavity during the casting process, comprising the following steps: providing or producing a first mold part for partially defining the mold cavity with a vertically extending first mold dividing surface; Providing or producing a second mold part for partially defining the mold cavity with a second dividing surface complementary to the first dividing surface, the first dividing surface of the first mold part and the second dividing surface of the second mold part being arranged to be joined together to form a part of the mold cavity; Providing or producing a feeder insert for positioning in said first mold part, the feeder insert having a volume center of gravity offset relative to the opening axis of its passage opening; Positioning the feeder insert in one of said mold parts, so that the opening axis of the feeder insert is below its center of gravity, and then producing the mold with the mold cavity by joining the first dividing surface of the first mold part with the second dividing surface of the second mold part. By means of the method steps according to the invention, a casting mold of at least two moldings to be joined together can be produced in a simplified manner. In this case, a feeder insert can be used, which is preferably not (or only to a small extent) compressible (compressible) and is positioned only after the production of the mold or parts for a mold in at least one of the prefabricated moldings, wherein after positioning the opening axis of Feeder insert runs below its volume center of gravity. Therefore, the production of the molded article in the molding chamber can be performed without a feeder insert to be previously positioned therein. Possible damage to the feeder insert, due to the effective pressures during the compression process, can thus be excluded. As a result, any desired high compression pressures can be generated for compacting the molding material and the strength of the prefabricated moldings can be adjusted individually. The casting mold is preferably produced in which two corresponding or complementary vertical dividing surfaces of a first molded part and a second molded part are joined together.

According to a preferred embodiment of the method according to the invention, one of said mold parts has a recess, wherein the feeder insert for positioning is used in the preformed molding of the mold in this recess. With the provision of a recess in a corresponding region of one of said mold parts, a simple positioning of the feeder insert in the first or second molded part of the mold to be produced is achieved. Preferably, the recess is a cavity in the compressed molding material, in which the feeder insert is used and which is not involved in the configuration of the mold cavity for producing the casting. In order to avoid mispositioning of the feeder insert in the molded part, recess and feeder insert are preferably designed such that they define a preferred orientation for the insertion of the feeder insert into the recess. Alternatively, as holding means for the feeder insert in the molded part instead of a recess regions of the molded part may be equipped with projecting webs on which the in the molded part to be positioned or to be used feeder insert is clamped.

Preferably, the mold is made with a vertical shape division and an attached to the mold feeder insert in a molding line with an endless strand of molding. As a result, an automated production of the molds is possible, whereby the production of molds accelerated and can be done in a shorter time. Castings, which are manufactured in high quantities, can thus be produced economically and with significantly reduced production costs. The production of the casting mold in the molding plant preferably comprises at least the joining of the first dividing surface of the first molded part with the second dividing surface of the second molded part, wherein a strand of preferably successively lined casting molds is produced. The strand produced is then moved continuously or intermittently in the processing direction. The first and second molded parts which are joined together in the molding installation can be produced, for example, in separate molding plants, which are then provided after production at said molding plant for producing the casting mold. The insertion of the feeder insert in at least one of said first and second mold parts can already be carried out in the separate molding plants for the production of the molded parts or in the said molding plant for joining the molded parts provided on the molding plant.

Alternatively, according to one embodiment of the method according to the invention, it is provided that the feeder insert is positioned in the first and / or the second mold part of the mold, wherein said mold parts are prefabricated in one or the molding line with an endless mold strand. Thus, in addition to the joining of the prefabricated moldings, the production of the individual moldings in said molding plant. Thus, the production of the moldings and the casting mold to be joined from it is advantageously implemented with a single molding line, whereby the provision of the moldings is eliminated and the logistical effort is minimized. This advantageous embodiment of the invention can be combined with the independent aspects of the present invention. With regard to preferred combinations, what has been said at the corresponding text passages applies correspondingly.

Preferably, the first and / or the second molded part are prefabricated in a molding chamber of said molding plant by molding material is injected into the molding chamber and preferably compressed. By means of the molding chamber, a molding space for producing the molded part is predetermined, the wall regions of which map predetermined surface areas of the molded part to be produced. The molding material used is preferably natural sand, semisynthetic molding sand or synthetic molding materials, which are introduced into the molding chamber, in particular injected under high pressure into the molding chamber. With the injection of the molding material at the same time a compression of the molding material, which may possibly be sufficient to ensure sufficient cohesion of the injected molding material without further reworking. Preferably, the molding material injected into the molding chamber is additionally compressed by a pressure force acting on the molding material. In addition, then increased binding forces between the material particles of the molding material and increased strength of the molded part produced are effected.

Another development of the method according to the invention provides that the first and the second molded part are produced in a molding chamber of a molding plant with a pivot plate and a pressure plate, wherein injected molded material is compacted by a relative movement between the pivot plate and the pressure plate. Generating a relative movement between the pivot plate and the mold plate causes an advantageously easy way to apply a compressive force on the injected into the mold chamber molding material. For the relative movement between the swivel plate and the press plate, at least one of the mold chamber preferred laterally delimiting model halves, which are aligned substantially parallel to each other, moves in the direction of the other model half or plate. An alternative embodiment provides that both the pivot plate and the pressure plate are moved toward each other with the model halves arranged thereon and perform a linear movement in a preferably horizontal plane. The press plate, which is mounted on the plunger, and the pivot plate reduce their distance during the compression process relative to each other, based on the initial distance immediately before Start of densification, preferably at least 20%, more preferably at least 40%. The degree of compaction of the molding material used to form the moldings is particularly dependent on its composition and can be tailored to the particular application.

In one development of the method according to the invention, the first and / or the second molded part are produced in a molding chamber of said molding installation, which is partially delimited by a positive model of at least one section of the feeder insert. With the aid of the positive model of at least one section of the feeder insert, the recess used for inserting the feeder insert can be produced in one of the molded parts in a simple manner. With the formation of a recess on the positive model in the mold chamber also a simple positioning in a preferred predetermined insertion orientation of the feeder insert to the molding is produced. This advantageous embodiment of the invention can be combined with the independent aspects of the present invention. With regard to preferred combinations, what has been said at the corresponding text passages applies correspondingly.

Preferably, the mold chamber is formed between a pivot plate and a press plate, wherein the positive model is disposed on the pivot plate or the press plate. As a result, the recess for the feeder insert is produced in particular on or in the vertical dividing surface of the molded part to be produced. Depending on in which region of the mold cavity of the mold the recess is to be formed, the positive model is correspondingly formed or arranged on the swivel plate or the press plate. The positive model forms at least a portion of the feeder insert to be positioned in the molded part in the direction of extent starting from the second end in the direction of the first end. In an alternative embodiment, the positive model formed on the swivel or press plate has the shape of the entire feeder insert, wherein the cross-sectional area of the positive model increases starting from its free end in the direction of the press or swivel plate.

During the compaction of the first molded part of the casting mold on contiguous surfaces of the first molded part, contour regions of mold cavities of two adjacent casting molds are preferably formed. In the method according to the invention, a molded part is produced which not only has a contour of an area of a mold cavity on one of the lateral surfaces, but preferably on both lateral, mutually remote surfaces contour regions of mold cavities of two separate has to be produced casting molds. Depending on the configuration of the cast part to be produced, the contour regions on the surfaces of the molded part facing away from one another can be identical, similar or different. This advantageous embodiment of the invention can be combined with the independent aspects of the present invention. With regard to preferred combinations, what has been said at the corresponding text passages applies correspondingly.

In a development of the method according to the invention, the feeder insert is automatically positioned by hand or by means of an insertion device in the first and / or the second molded part. Preferably, the positioning of the feeder insert in the molding by means of an insertion device, which has the advantage over the insertion by hand, that the insertion process is standardized. A misadjustment or a resulting defective casting can be advantageously avoided by means of a machine insertion with an automatically operating insertion device. In addition, fixed cycle times can be implemented via the insertion device, which has an advantageous effect on the subsequent steps to be carried out for producing the casting molds to be produced.

Preferably, the feeder insert is held during positioning in the first and / or the second mold part by means of negative pressure or positive locking on a holding part of the insertion device. The holding of the feeder insert by means of negative pressure at the loading device has the advantage that after the insertion of the feeder insert into the molded part, the connection to the holding part of the loading device can be easily released by releasing the negative pressure. It is avoided that the feeder insert is unintentionally moved out of the recess in the molding. Alternatively, a positive connection of the holding part is effected with openings formed, for example, on the feeder insert, via which the feeder insert can be inserted in its predetermined orientation into preferably the cutout in the molded part. By positive locking is to be understood in the present case the picking up of the feeder insert via, for example, guide pins on the holding part, by means of which the feeder insert is held by its openings in preferably the wall section at the first end against the force of gravity.

The invention further relates to a vertical form-divisional mold comprising a) a first molded part, and b) a feeder insert positioned in the first molded part for feeding the mold cavity during the casting process, producible according to a method according to one of the preferred embodiments described above, wherein the feeder insert is positioned in the first mold part of the mold such that its opening axis extends below its center of gravity. Such a casting mold according to the invention can be produced in a simplified manner, since the feeder insert, whose passage opening for the transfer of liquid metal during the casting process is arranged below the center of gravity of the feeder, is used only after prefabricating a first or second molded part of the casting mold into a respective molded part , The production of the molding of the mold is thus carried out without a feeder insert in the mold chamber of a molding installation described above. Damage to the feeder insert or misalignment to the adjacent trained mold cavity are thus avoided. Preferably, the mold or at least one of the mold forming the mold parts has a recess into which the feeder insert is preferably used non-positively and / or positively. The recess is preferably located in a vertically extending wall portion of the molded part, which forms a contour region of the mold cavity of the mold.

A further development of the casting mold according to the invention provides that one or more venting channels corresponding to ventilation openings of the feeder insert are arranged in the first molding and / or a complementary second molding. Via the venting channels, which preferably run in a vertical direction during the use of the casting mold, the formation of a gas volume above the liquid metal in the feeder insert can be counteracted, in particular during the casting process. This ensures that the feeder insert is always completely filled with liquid metal. Consequently, the size of the feeder can be individually adapted to the shrinkage behavior of the casting to be produced, and a feeder insert with a smaller feed volume can be used, which corresponds almost to the shrinkage behavior of the casting. The one or more venting channels are preferably produced by means of a positive model, which is arranged on the mold plate for the first and / or second molded part.

Preferably, a preferably planar wall portion of the mold cavity is formed by the outer wall of the feeder insert, whereby a simple embodiment of the feeder insert is achieved in particular its first end. Preferably, a vertically extending wall portion of a contour region of the mold cavity of the mold is produced. With regard to further preferred embodiments of the casting mold according to the invention, reference is made to the above statements on the use according to the invention or the method according to the invention for producing a casting mold.

The invention also relates to a feeder insert having a volume center of gravity offset relative to the opening axis of its passage opening for use in any of the preferred embodiments described above, wherein the feeder insert has a first end having a passage opening, a second end and one or more extending from the first to the second Having end-extending side walls defining a feeder cavity for receiving liquid metal, and having a first end disposed Wandungsabschnitt which forms a side wall portion of the mold cavity of the mold, wherein the passage opening having Wandungsabschnitt additionally one or more openings for venting the feeder Cavity and / or engaging therein retaining means of an insertion device are arranged and wherein the feeder insert based on its longitudinal extent in the direction of the opening axis by not more than 5%, preferably not more than 2% non-destructible.

The invention is based on the finding that a molded part of a mold with vertical shape division after prefabrication in preferably a mold chamber of a molding line can be equipped in a simple manner with such an inventive feeder insert. On the other hand, the use of a consuming designed, compressible or telescopic feeder can be dispensed with. The feeder according to the invention is used in such a way in the mold part of the mold that its opening axis of the passage opening extends below the volume of gravity of the feeder insert, whereby the desserts of, for example, isolated heavy casting sections in the mold cavity of the mold from the side is possible. Preferably, the feeder insert in the direction of the opening axis of its passage opening less than 5%, preferably less than 2% non-destructible compressible. The feeder insert therefore has a limited deformability. The feeder insert is thus not adapted to be compressed relative to its longitudinal extent between the first end with its passage opening to the second end in order to compensate for a compression process. The feeder insert is integrally formed in one embodiment, the feeder insert also has at its first end a wall portion with a passage opening arranged therein for the liquid metal. Starting from the wall section at the first end extending in the direction of the second end of the feeder insert one or more side walls, which preferably project at right angles to the wall portion at the first end.

According to a preferred embodiment of the feeder insert according to the invention, the feeder insert has one starting from the second end in the direction of the first End increasing external cross-sectional area. The feeder insert, which is inserted into a recess formed in the molded part, can be positioned in a simplified manner in a recess in the molded part by the tapering cross section in the direction of its second end. Preferably, a force or positive connection between the outer wall of the feeder insert and the inner wall of the recess in the molded part is generated only shortly before reaching the end position in the recess during insertion of the feeder insert into the recess. Thus, the exact positioning of the feeder insert with a small amount of force is possible, since only in the last section of the positioning movement in the insertion direction any frictional forces between the contacting wall portions must be overcome. The cross-sectional area of the feeder insert expands, starting from the second end of the feeder insert, preferably uniformly over a section of the feeder insert in the direction of extent. The widening section corresponds to at least half of the total length of the feeder insert in the direction of extent, preferably two thirds of the total length of the feeder insert in the extension direction.

Preferably, in a further embodiment of the feeder insert this is open at its second end, which is arranged opposite the wall section with the passage opening. By its open at the second end embodiment of the feeder insert according to the invention can be made even in an advantageously simple manner in a mold space from which the feeder insert according to the invention can be removed via its second, open end. This advantageous embodiment of the invention can be combined with the independent aspects of the present invention. With regard to preferred combinations, what has been said at the corresponding text passages applies correspondingly.

Fig. 1 bis 8:

eine schematische Darstellung eines erfindungsgemäßen Verfahrens zum Herstellen einer Gießform mit vertikaler Formteilung in einer Formanlage mit endlosem Formteilestrang;

Fig. 9:

eine Schnittdarstellung eines ersten Ausführungsbeispiels eines erfindungsgemäßen Speisereinsatzes, und

Fig. 10:

eine perspektivische Darstellung eines zweiten Ausführungsbeispiels auf sein zweites, offenes Ende.

The invention will be described with reference to a possible embodiment with reference to the accompanying figures. Hereby show:

Fig. 1 to 8:

a schematic representation of a method according to the invention for producing a mold with vertical mold division in a molding plant with endless molding strand;

Fig. 9:

a sectional view of a first embodiment of a feeder insert according to the invention, and

Fig. 10:

a perspective view of a second embodiment of its second, open end.

In the FIGS. 1 to 8 a continuous process for the production of molds 1 in a schematically illustrated molding plant 2 is shown. In the present case, for the following description of a cycle or cycle of the method from the step of filling of molding material 4 in a mold chamber 6 of the molding plant 2 is assumed as the first step of a per se ongoing process. The molding material 4, which is preferably injected into the molding chamber 6, is provided above the molding chamber 6 in a feeding device 8. The mold chamber 6 is formed by fixed, upper and lower wall portions 10, 12, on the left side by a pressing plate 14 and on the right side by a pivot plate 16. The pressing plate 14 is connected to a linearly displaceably held plunger 18. In Fig. 1 two molded parts 20, 22 are shown on the right side, which are previously produced in the mold chamber 6 and already assembled by joining their mutually facing division surface 20 ", 22 'to the casting mold 1. The molded part 20 of the casting mold 1 is already equipped with a feeder insert 24, via the desserts of liquid metal from the side are ensured in the mold cavity 26 of the casting mold 1 formed by the mold parts 20, 22. The strung moldings form an endless molding strand 28.

Fig. 2 shows in a next step of the method according to the invention, in which the molding material 4 located in the now completely closed mold chamber 6 is compressed. For compacting, the pressing plate 14 is moved over the pressing piston 18 in the direction of the pivot plate 16 (arrow 29), whereby the distance between the pressing plate 14 and the pivot plate 16 is reduced. The molding strand 28 of lined moldings 20, 22 is moved by means of a conveyor not shown further to the right or transported to create a free space for the next formed just in the mold chamber 6 molding. At the same time, an insertion device 30 is moved in perpendicular to the viewing plane between the molding chamber 6 and the molding strand 28 from the mold parts 20, 22, by means of which a feeder insert 24 is received, which is to be positioned in a recess 32 in the molded part 22. For positioning the feeder insert 24 in the recess 32, the insertion device 30 is moved in the direction of the division surface 22 "of the molded part 22 (arrow 33).

Fig. 3 shows a subsequent step of the method according to the invention, wherein the molding material 4 in the mold chamber 6 further between the moved plunger 18 with the Press plate 14 (arrow 29) and the pressure plate 16 is compressed. At the same time, the feeder insert 24 is positioned by the insertion device 30 in the recess 32 of the molded part 22, wherein the feeder insert 24 is inserted into the prefabricated molded part 22, that the not-shown opening axis of its passage for the liquid metal extends below its volume center of gravity. The feeder insert is received on the insertion device via a holding part, not shown in detail, wherein the feeder insert 24 is held by means of a generated by the insertion device 30 and acting on the feeder insert negative pressure on the insertion device 30 is fixed meadow.

Fig. 4 shows the step of the inventive method for producing the mold with vertical mold division, at the time when the feeder insert 24 has been positioned by the insertion device 30 in the recess in the molding 22 and then in the direction (arrow 33 ') of the mold chamber 6 is moved back. Subsequently, which is not shown in detail, the loading device 30 is moved perpendicular to the viewing plane between the mold chamber 6 and the molding strand 28 out. Moreover, in Fig. 4 shown how at the end of the compression process of the molding material 4 in the mold chamber 6 of the plunger 18 is moved with its press plate 14 (arrow 29) in its end position, whereby the production of the molded part 34 is completed with a recess 32 for a feeder insert. The molded part 34 now has an identical configuration to the previously produced molded parts 20 and 22.

Fig. 5 shows the output of the prefabricated molded part 24 from the mold chamber 6, wherein the pivot plate 16 in the direction (arrow 35) of the molding section 28 from molded parts 20, 22 moves and is pivoted by a pivoting movement (arrow 37) about the pivot axis 36 upwards. After the process of the pivot plate 16 in its waiting position, this has a substantially horizontal orientation.

In Fig. 6 It is shown how the prefabricated molded part 34 by means of the plunger 18 from the mold chamber 6 output (arrow 39) is until the molding 34 with its parting surface 34 'with the dividing surface 22 "of the molding 22 in abutment, as from Fig. 7 seen. In the feeder 8 of the molding line 6, a predetermined amount of molding material 4 is filled for the subsequent cycle.

After the molded part 34 has been brought into abutment with the previously produced molded part 22, the pressing piston moves into its starting position (arrow 39 ') before the start of the molding process Fig. 1 back to shown compression process. It can be seen that the press plate In addition to the positive model 38 for the contour region 41 on the division surface 34 "of the molding 34, the positive model 40 also comprises at least a portion of the feeder insert 24 to be inserted into the molding 34 to produce the recess 32 in the molding 34. As can be seen from the present figures formed on the divisional dividing surfaces 34 ', 34 "of the molded part 34, the contour regions 41, 41' of two adjacent mold cavities 26 to be produced casting molds 1. The positive model 38 'generating the contour region 41' is arranged on the swivel plate 16. As in Fig. 7 Furthermore, in addition to the production of the casting molds 1 with the molding installation 2 and the generation of an endless molding strand 28 from moldings 20, 22, 34, the casting of castings takes place by filling of liquid metal 42 into the casting molds 1 arranged one behind the other.

At the conclusion of a cycle of the method according to the invention, the pivot plate 16 is pivoted back from its waiting position with the horizontal alignment about the pivot axis 36 in its vertical position (arrow 37 ') and in the direction (arrow 35') of the press plate 14 for forming the mold chamber 6 also in back their working position for the upcoming consolidation process. Thus, one cycle of the method according to the invention is completed and the next cycle for producing a molded part starts, starting with the in Fig. 1 shown method step, wherein molding material 4 is injected from the feeder 8 into the mold chamber 6.

In Fig. 9 is a sectional view of an inventive, in the Fig. 1 to 8 shown only schematically illustrated feeder insert 24 having a first end 50, a second end 52 and one or more between the first and second ends 50, 52 extending side walls 54. A wall portion 56 disposed on the first end 50 and the side wall 54 projecting substantially perpendicularly on the wall portion 56 partially define the feeder cavity 58 for receiving liquid metal. The wall section 56 has a passage opening 60, via which the connection between the mold cavity 26 of a casting mold 1 (FIG. Fig. 1 ) and the feeder cavity 58 is made. The passage opening 60 has an opening axis 62, which is offset relative to the center of gravity of the feeder insert 24. The wall portion 56 has an inner wall surface 64 which defines a tapered in the direction of the passage opening 60 cavity portion of the feeder cavity. The wall surface 64 is conical. The mold cavity facing wall surface 64 'of Wandungsabschnitts 56 is flat in the embodiment shown. On the wall portion 56, an opening 66 for venting the feeder cavity 58 is also arranged, the opening axis 68 parallel to the opening axis 62 of the passage opening 60 extends. The feeder insert 24 according to the invention has an increasing from the second end 52 in the direction of the first end 50 outer cross-sectional area. On the other hand, the cross-section of the riser cavity 58 delimited by the side wall 54, starting from the second end 52, decreases in the direction of the first end 50 of the feeder sleeve 24, as seen in FIG Fig. 9 can be seen, the feeder insert 24 is integrally formed, wherein the feeder insert is formed of an exothermic or insulating molding material or partially exothermic and / or insulating molding material comprises. In the embodiment shown, the feeder insert 24 is designed to be open at the second end 52 and formed without a web extending parallel to the opening axis 62 of the passage opening 60 along a section of the side wall 54.

Fig. 10 shows a second embodiment of a feeder insert 24 'according to the invention, which is almost identical to the in Fig. 9 embodiment shown is formed. Like the feeder sleeve 24, the feeder sleeve 24 'is open at the second end 52. The feeder insert 24 'differs from the feeder insert 24 (FIG. Fig. 9 ) by a web or wall section 70 which divides the feeder cavity 58 'like a chamber. When using the feeder insert 24, the web 70, which is also known by the term Williams strip or Williamskeil, above the opening axis 62 (FIG. Fig. 9 ) arranged.

1. 1. Verwendung eines Speisereinsatzes (24, 24') mit einem relativ zur Öffnungsachse (62) seiner Durchtrittsöffnung (60) versetzten Volumenschwerpunkt bei der Herstellung einer Gießform (1) mit vertikaler Formteilung und einem an die Gießform (1) angesetzten Speisereinsatz (24, 24') zur Dichtspeisung des Formhohlraums (26) beim Gießvorgang,
   wobei
   der Speisereinsatz (24, 24') so in einem vorgefertigten Formteil (20, 22, 34) der Gießform (1) positioniert wird, dass seine Öffnungsachse (62) unterhalb seines Volumenschwerpunktes verläuft.
2. 2. Verwendung nach Aspekt 1,
   wobei der Speisereinsatz (24, 24') zum Positionieren in dem vorgefertigten Formteil (20, 22, 34) der Gießform (1) in eine Aussparung (32) im vorgefertigten Formteil (20, 22, 34) der Gießform (1) eingesetzt wird.
3. 3. Verwendung nach einem der Aspekte 1 oder 2,
   wobei die Gießform (1) mit vertikaler Formteilung und einem an die Gießform (1) angesetzten Speisereinsatz (24, 24') zur Dichtspeisung des Formhohlraums (26) beim Gießvorgang in einer Formanlage (2) mit einem endlosen Formteilestrang (28) hergestellt wird.
4. 4. Verwendung nach einem der vorangehenden Aspekte,
   wobei der Speisereinsatz (24, 24') in einem vorgefertigten Formteil (20, 22, 34) der Gießform (1) positioniert wird, wobei das Formteil (20, 22, 34) in einer bzw. der Formanlage (2) mit einem endlosen Formteilestrang (28) vorgefertigt wird.
5. 5. Verwendung nach einem der Aspekte 1 bis 4,
   wobei das Formteil (20, 22, 34) in einer Formkammer (6) vorgefertigt wird, indem Formstoff (4) in die Formkammer (6) eingeschossen und vorzugsweise der eingeschossene Formstoff (4) anschließend verdichtet wird.
6. 6. Verwendung nach einem der Aspekte 1 bis 5,
   wobei das Formteil (20, 22, 34) in einer Formkammer (6) vorgefertigt wird, welche partiell durch ein Positivmodell (40) von zumindest einem Abschnitt des Speisereinsatzes (24, 24') begrenzt wird.
7. 7. Verwendung nach Aspekt 6,
   wobei die Formkammer (6) in einer Formanlage (2) mit einer Schwenkplatte (16) und einer Pressplatte (14) gebildet wird und das Positivmodell (40) des besagten Abschnitts des Speisereinsatzes (24, 24') an der Schwenkplatte (16) oder der Pressplatte (14) angeordnet wird.
8. 8. Verwendung nach einem der vorangehenden Aspekte,
   wobei der Speisereinsatz (24, 24') formschlüssig und/oder kraftschlüssig in die Aussparung (32) eingesetzt wird.
9. 9. Verwendung nach einem der Aspekte 2 bis 4,
   wobei der Speisereinsatz (24, 24') manuell oder mittels einer Einlegeeinrichtung (30) automatisiert in die Aussparung (32) eingesetzt wird.
10. 10. Verwendung nach einem der vorangehenden Aspekte,
    wobei der Speisereinsatz (24, 24')
    • ein erstes Ende (50) mit einer Durchtrittsöffnung (60), ein zweites Ende (52) und eine oder mehrere sich vom ersten zum zweiten Ende (50, 52) erstreckende Seitenwände (54) besitzt, welche einen Speiser-Hohlraum (58) zur Aufnahme flüssigen Metalls begrenzen, und
    • einen am ersten Ende (50) angeordneten Wandungsabschnitt (56) besitzt, der einen seitlichen Wandbereich des Formhohlraums (26) der Gießform (1) bildet.
11. 11. Verwendung nach Aspekt 10,
    wobei der Wandungsabschnitt (56) am ersten Ende (50) des Speisereinsatzes (24, 24') eine dem Speiser-Hohlraum (58) zugewandte innere Wandfläche (64) aufweist, welche einen sich in Richtung der Durchtrittsöffnung (60) verjüngenden Hohlraumabschnitt begrenzt.
12. 12. Verwendung nach einem der Aspekte 10 und 11,
    wobei der am ersten Ende (50) des Speisereinsatzes (24, 24') angeordnete Wandungsabschnitt (56) einen dem Formhohlraum (26) der Gießform (1) zugewandten, planen Wandflächenabschnitt besitzt.
13. 13. Verwendung nach einem der Aspekte 10 bis 12,
    wobei die eine oder mehreren Seitenwände (54) am Wandungsabschnitt (56) im Wesentlichen senkrecht abstehen oder dass die eine oder mehreren Seitenwände (54) etwa parallel zur Öffnungsachse (62) der Durchtrittsöffnung (60) ausgerichtet ist.
14. 14. Verwendung nach einem der Aspekte 10 bis 13,
    wobei in dem die Durchtrittsöffnung (60) aufweisenden Wandungsabschnitt (56) zusätzlich eine oder mehrere Öffnungen (66) zum Entlüften des Speiser-Hohlraumes (58) und/oder für darin eingreifende Haltemittel einer Einlegeeinrichtung (30) angeordnet sind.
15. 15. Verwendung nach einem der vorangehenden Aspekte,
    wobei der Speisereinsatz (24, 24') bezogen auf seine Längserstreckung in Richtung der Öffnungsachse (62) um nicht mehr als 5%, vorzugsweise nicht mehr als 2% zerstörungsfrei stauchbar ist.
16. 16. Verwendung nach einem der Aspekte 10 bis 15,
    wobei der Speisereinsatz (24, 24') einen senkrecht zur Öffnungsachse (62) angeordneten, äußeren Querschnitt besitzt, der vorzugsweise ausgewählt ist aus der Gruppe bestehend aus oval, unrund, kantengerundetes Rechteck und Vieleck.
17. 17. Verwendung nach einem der Aspekte 10 bis 16,
    wobei der Speisereinsatz (24, 24') einen Querschnitt mit einer ausgehend vom zweiten Ende in Richtung des ersten Endes zunehmenden äußeren Querschnittsfläche besitzt.
18. 18. Verwendung nach einem der Aspekte 10 bis 17,
    wobei der Speisereinsatz (24, 24') an seinem zweiten Ende (52), welches dem Wandungsabschnitt (56) mit der Durchtrittsöffnung (60) gegenüberliegend angeordnet ist, offen ausgebildet ist.
19. 19. Verwendung nach einem der Aspekte 10 bis 18,
    wobei der vorzugsweise von der mindestens einen Seitenwand (54) begrenzte Speiser-Hohlraum (58) eine innere Querschnittsfläche hat, die sich vom ersten Ende (50) zum zweiten Ende (52) des Speisereinsatzes (24, 24') hin vergrößert.
20. 20. Verwendung nach einem der Aspekte 1 bis 19,
    dadurch gekennzeichnet, dass der Speisereinsatz (24, 24') aus exothermem Formstoff gebildet ist oder zumindest abschnittsweise exothermen Formstoff umfasst und/oder aus isolierendem Formstoff gebildet ist oder zumindest abschnittsweise isolierenden Formstoff umfasst.
21. 21. Verwendung nach einem der Aspekte 10 bis 20,
    dadurch gekennzeichnet, dass der Speisereinsatz (24, 24') innenseitig an seiner Seitenwand, bevorzugt an einem bei Verwendung des Speisereinsatzes (24, 24') oberhalb der Öffnungsachse (62) liegenden Wandbereich, einen oder mehrere angeformte Stege (70) oder Wandabschnitte besitzt, welche den Speiser-Hohlraum (58) kammerartig unterteilen.
22. 22. Verwendung nach Aspekt 21,
    dadurch gekennzeichnet, dass das der Steg (70) oder Wandabschnitt sich bevorzugt parallel zur Öffnungsachse (62) der Durchtrittsöffnung (60) entlang eines Abschnittes der Seitenwand (54) erstreckt.
23. 23. Verfahren zum Herstellen einer Gießform (1) mit vertikaler Formteilung und einem an die Gießform (1) angesetzten Speisereinsatz (24, 24') zur Dichtspeisung des Formhohlraums (58) beim Gießvorgang, mit folgenden Schritten:
    • Bereitstellen oder Herstellen eines ersten Formteils (20, 22) zur teilweisen Definition des Formhohlraums (26), mit einer vertikal verlaufenden ersten Teilungsfläche (20', 22'),
    • Bereitstellen oder Herstellen eines zweiten Formteils (22, 34) zur teilweisen Definition des Formhohlraums (26), mit einer komplementär zur ersten Teilungsfläche (20',22') verlaufenden zweiten Teilungsfläche (22", 34"), wobei die erste Teilungsfläche (20', 22') des ersten Formteils (20, 22) und die zweite Teilungsfläche (22", 34") des zweiten Formteils (22, 34) dazu vorgesehen sind, unter Ausbildung eines Teils des Formhohlraums (26) zusammengefügt zu werden,
    • Bereitstellen oder Herstellen eines Speisereinsatzes (24, 24') zum Positionieren in dem besagten ersten Formteil (22, 34), wobei der Speisereinsatz (24, 24') einen relativ zur Öffnungsachse seiner Durchtrittsöffnung versetzten Volumenschwerpunkt besitzt,
    • Positionieren des Speisereinsatzes (24, 24') in einem der besagten Formteile (20, 22, 34), so dass die Öffnungsachse (62) des Speisereinsatzes (24, 24') unterhalb seines Volumenschwerpunktes verläuft, und anschließend
    • Erzeugen der Gießform (1) mit dem Formhohlraum (58) durch Zusammenfügen der ersten Teilungsfläche (20', 22') des ersten Formteils (20, 22) mit der zweiten Teilungsfläche (22", 34") des zweiten Formteils (22, 34).
24. 24. Verfahren nach Aspekt 23,
    wobei eines der besagten Formteile (20, 22, 34) eine Aussparung (32) besitzt und der Speisereinsatz (24, 24') zum Positionieren in dem vorgefertigten Formteil (20, 22, 34) der Gießform (1) in diese Aussparung (32) eingesetzt wird.
25. 25. Verfahren nach einem der Aspekte 23 und 24,
    wobei die Gießform (1) mit vertikaler Formteilung und einem an die Gießform (1) angesetzten Speisereinsatz (24, 24') in einer Formanlage (2) mit einem endlosen Formteilestrang (28) hergestellt wird.
26. 26. Verfahren nach einem der Aspekte 23 bis 25,
    wobei der Speisereinsatz (24, 24') in dem ersten und/oder dem zweiten Formteil (20, 22, 34) der Gießform (1) positioniert wird, wobei besagte Formteile (20, 22, 34) in einer bzw. der Formanlage (2) mit einem endlosen Formteilestrang (28) vorgefertigt werden.
27. 27. Verfahren nach einem der Aspekte 23 bis 26,
    wobei das erste und/oder das zweite Formteil (20, 22, 34) in einer Formkammer (6) der besagten Formanlage (2) vorgefertigt werden, indem Formstoff (4) in die Formkammer (6) eingeschossen und vorzugsweise verdichtet wird.
28. 28. Verfahren nach einem der Aspekte 23 bis 27,
    wobei das erste und das zweite Formteil (20, 22, 34) in einer Formkammer (6) einer Formanlage (2) mit einer Schwenkplatte (16) und einer Pressplatte (14) hergestellt werden, wobei eingeschossener Formstoff (4) durch eine Relativbewegung zwischen der Schwenkplatte (16) und der Pressplatte (14) verdichtet wird.
29. 29. Verfahren nach einem der Aspekte 23 bis 28,
    wobei das erste und/oder das zweite Formteil (20, 22, 34) in einer Formkammer (6) besagter Formanlage (2) hergestellt werden, welche partiell durch ein Positivmodell (40) von zumindest einem Abschnitt des Speisereinsatzes (24, 24') begrenzt wird.
30. 30. Verfahren nach Aspekt 29,
    wobei die Formkammer (6) zwischen einer Schwenkplatte (16) und einer Pressplatte (14) gebildet wird, wobei das Positivmodell (40) an der Schwenkplatte (16) oder der Pressplatte (14) angeordnet ist.
31. 31. Verfahren nach einem der Aspekte 27 bis 30,
    wobei während des Verdichtens des ersten und/oder zweiten Formteils (20, 22, 34) der Gießform (1) an voneinander abgewandten Flächen des ersten Formteils Konturbereiche von Formhohlräumen zweier benachbarter Gießformen ausgebildet werden.
32. 32. Verfahren nach einem der vorhergehenden Aspekte,
    wobei der Speisereinsatz (24, 24') von Hand oder mittels einer Einlegeeinrichtung (30) automatisiert in dem ersten und/oder zweiten Formteil (20, 22, 34) positioniert wird.
33. 33. Verfahren nach Aspekt 32,
    wobei der Speisereinsatz (24, 24') während des Positionierens in dem ersten und/oder zweiten Formteil (20, 22, 34) mittels Unterdruck oder Formschluß an einem Halteteil der Einlegeeinrichtung (30) gehalten wird.
34. 34. Gießform mit vertikaler Formteilung umfassend
    1. a) ein erstes Formteil (20, 22), und
    2. b) einen in dem ersten Formteil positionierten Speisereinsatz (24, 24') zur Dichtspeisung des Formhohlraums (26) beim Gießvorgang,
    herstellbar gemäß einem Verfahren nach einem der Aspekte 23 bis 33,
    wobei der Speisereinsatz (24, 24') so im ersten Formteil (20, 22) der Gießform (1) positioniert ist, dass seine Öffnungsachse (62) unterhalb seines Volumenschwerpunktes verläuft.
35. 35. Gießform nach Aspekt 34,
    wobei in dem ersten Formteil (20, 22) und/oder einem komplementären zweiten Formteil (22, 34) ein oder mehrere mit Öffnungen (66) zum Entlüften des Speisereinsatzes (24, 24') korrespondierende Entlüftungskanäle angeordnet sind.
36. 36. Gießform nach einem der vorangehenden Aspekte,
    wobei ein vorzugsweise planer Wandabschnitt des Formhohlraumes (26) von der Au-ßenwandung des Speisereinsatzes (24, 24') ausgebildet wird.
37. 37. Speisereinsatz (24, 24') mit einem relativ zur Öffnungsachse seiner Durchtrittsöffnung versetzten Volumenschwerpunkt, zur Verwendung nach einem der Aspekte 1 bis 22, wobei der Speisereinsatz (24, 24')
    ein erstes Ende (50) mit einer Durchtrittsöffnung (60), ein zweites Ende (52) und eine oder mehrere sich vom ersten zum zweiten Ende erstreckende Seitenwände (54) besitzt, welche einen Speiser-Hohlraum (58) zur Aufnahme flüssigen Metalls begrenzen, und
    einen am ersten Ende (50) angeordneten Wandungsabschnitt (56) besitzt, der einen seitlichen Wandbereich des Formhohlraums (26) der Gießform (1) bildet,
    wobei in dem die Durchtrittsöffnung (60) aufweisenden Wandungsabschnitt (56) zusätzlich eine oder mehrere Öffnungen (66) zum Entlüften des Speiser-Hohlraumes (58) und/oder für darin eingreifende Haltemittel einer Einlegeeinrichtung (30) angeordnet sind, und
    wobei der Speisereinsatz (24, 24') bezogen auf seine Längserstreckung in Richtung der Öffnungsachse (62) um nicht mehr als 5%, vorzugsweise nicht mehr als 2% zerstörungsfrei stauchbar ist.
38. 38. Speisereinsatz nach Aspekt 37,
    wobei der Speisereinsatz (24, 24') eine ausgehend vom zweiten Ende (52) in Richtung des ersten Endes (50) zunehmende äußere Querschnittsfläche besitzt.
39. 39. Speisereinsatz nach einem der Aspekte 37 und 38,
    wobei der Speisereinsatz (24, 24') an seinem zweiten Ende (52), welches dem Wandungsabschnitt (56) mit der Durchtrittsöffnung (60) gegenüberliegend angeordnet ist, offen ausgebildet ist.

Bezugszeichenliste: 1. Gießform 35, 35' Bewegung Schwenkplatte 2. Formanlage 36 Schwenkachse 4. Formstoff 37, 37' Schwenkbewegung Schwenk-platte 6. Formkammer 8. Zuführeinrichtung 38 Positivmodell Gussteil 10, 12 Wandbereich 39 Ausgeben Formteil 14. Pressplatte 39' Rückbewegung Presskolben 16. Schwenkplatte 40 Positivmodell Speisereinsatz 18. Presskolben 41, 41' Konturbereich 20, 22 Formteil 42 Metall 20', 20" Teilungsfläche 50 erstes Ende 22', 22" Teilungsfläche 52 zweites Ende 24, 24' Speisereinsatz 54 Seitenwand 26 Formhohlraum 56 Wandlungsabschnitt 28 Formteilestrang 58 Speiser-Hohlraum 29 Verdichtung Presskolben 60 Durchtrittsöffnung 30 Einlegeeinrichtung 62 Öffnungsachse 32 Aussparung 64, 64' Wandfläche 33, 33' Bewegung Einlegeeinrichtung 66 Entlüftungsöffnung 34 Formteil 68 Öffnungsachse 34', 34" Teilungsfläche 70 Steg Hereinafter, preferred aspects of the present invention are given using the above-mentioned reference numerals. The reference numerals are not limiting, but merely to be understood as a means for facilitating the reading comprehension, because the specified aspects do not relate exclusively to the figures discussed above. The following aspects include features that may be combined with preferred other features that may be apparent from the description and / or the claims.

1. 1. Use of a feeder insert (24, 24 ') with a relative to the opening axis (62) of its passage opening (60) offset volume center of gravity in the production of a mold (1) with a vertical shape division and to the casting mold (1) attached feeder insert (24, 24 ') for the feed of the mold cavity (26) during the casting process,
   in which
   the feeder insert (24, 24 ') is positioned in a prefabricated molded part (20, 22, 34) of the casting mold (1) such that its opening axis (62) extends below its center of gravity.
2. 2. Use according to aspect 1,
   wherein the feeder insert (24, 24 ') for positioning in the prefabricated mold part (20, 22, 34) of the mold (1) in a recess (32) in the prefabricated mold part (20, 22, 34) of the mold (1) is used ,
3. 3. Use according to one of aspects 1 or 2,
   wherein the mold (1) with a vertical shape division and a to the mold (1) attached feeder insert (24, 24 ') for feeding the mold cavity (26) during the casting process in a molding plant (2) with an endless mold strand (28) is produced.
4. 4. Use according to one of the preceding aspects,
   wherein the feeder insert (24, 24 ') in a prefabricated mold part (20, 22, 34) of the mold (1) is positioned, wherein the molding (20, 22, 34) in a or molding system (2) with an endless Preformed molded part strand (28).
5. 5. Use according to one of the aspects 1 to 4,
   wherein the molded part (20, 22, 34) is prefabricated in a molding chamber (6) by injecting molding material (4) into the molding chamber (6) and preferably subsequently compacting the injected molding material (4).
6. 6. Use according to any one of aspects 1 to 5,
   wherein the molding (20, 22, 34) is prefabricated in a molding chamber (6) which is partially bounded by a positive model (40) of at least a portion of the feeder sleeve (24, 24 ').
7. 7. Use according to aspect 6,
   the molding chamber (6) being formed in a molding installation (2) with a pivoting plate (16) and a pressing plate (14) and the positive model (40) of said section of the feeder insert (24, 24 ') on the pivoting plate (16) or the pressing plate (14) is arranged.
8. 8. Use according to one of the preceding aspects,
   wherein the feeder insert (24, 24 ') is inserted positively and / or non-positively into the recess (32).
9. 9. Use according to any of aspects 2 to 4,
   wherein the feeder insert (24, 24 ') is automatically inserted into the recess (32) manually or by means of an insertion device (30).
10. 10. Use according to one of the preceding aspects,
    the feeder insert (24, 24 ')
    • a first end (50) having a passage opening (60), a second end (52) and one or more extending from the first to the second end (50, 52) side walls (54) having a feeder cavity (58) for Limit intake of liquid metal, and
    • a wall portion (56) disposed at the first end (50) which forms a side wall portion of the mold cavity (26) of the mold (1).
11. 11. Use according to aspect 10,
    wherein the wall section (56) at the first end (50) of the feeder insert (24, 24 ') has an inner wall surface (64) facing the feeder cavity (58), which delimits a cavity section tapering in the direction of the passage opening (60).
12. 12. Use according to any one of aspects 10 and 11,
    wherein the wall section (56) arranged at the first end (50) of the feeder insert (24, 24 ') has a planar wall surface section facing the mold cavity (26) of the casting mold (1).
13. 13. Use according to any one of aspects 10 to 12,
    wherein the one or more side walls (54) project substantially perpendicularly from the wall portion (56), or wherein the one or more side walls (54) are aligned approximately parallel to the opening axis (62) of the passage opening (60).
14. 14. Use according to any one of aspects 10 to 13,
    wherein in the passage portion (56) having the passage opening (60) additionally one or more openings (66) for venting the feeder cavity (58) and / or engaging therein holding means of an insertion device (30) are arranged.
15. 15. Use according to one of the preceding aspects,
    wherein the feeder insert (24, 24 ') with respect to its longitudinal extension in the direction of the opening axis (62) by no more than 5%, preferably not more than 2% non-destructive upsetting.
16. 16. Use according to any one of aspects 10 to 15,
    wherein the feeder insert (24, 24 ') has an outer cross-section, arranged perpendicular to the opening axis (62), which is preferably selected from the group consisting of oval, non-round, edge-rounded rectangle and polygon.
17. 17. Use according to any one of aspects 10 to 16,
    wherein the feeder sleeve (24, 24 ') has a cross-section with an increasing from the second end in the direction of the first end outer cross-sectional area.
18. 18. Use according to any one of aspects 10 to 17,
    wherein the feeder insert (24, 24 ') is open at its second end (52), which is arranged opposite the wall section (56) with the passage opening (60).
19. 19. Use according to any one of aspects 10 to 18,
    wherein the riser cavity (58) preferably defined by the at least one sidewall (54) has an internal cross-sectional area which increases from the first end (50) to the second end (52) of the feeder sleeve (24, 24 ').
20. 20. Use according to any of aspects 1 to 19,
    characterized in that the feeder insert (24, 24 ') is formed of exothermic molding material or at least partially comprises exothermic molding material and / or is formed from insulating molding material or at least partially comprises insulating molding material.
21. 21. Use according to any of aspects 10 to 20,
    characterized in that the feeder insert (24, 24 ') on the inside on its side wall, preferably on one when using the feeder insert (24, 24') above the opening axis (62) lying wall region, one or more integrally formed webs (70) or wall sections which divide the feeder cavity (58) like a chamber.
22. 22. Use according to aspect 21,
    characterized in that the web (70) or wall portion preferably extends parallel to the opening axis (62) of the passage opening (60) along a portion of the side wall (54).
23. 23. A method for producing a casting mold (1) with vertical division of form and a to the casting mold (1) attached feeder insert (24, 24 ') for the supply of density of the mold cavity (58) during the casting process, comprising the following steps:
    • Providing or producing a first mold part (20, 22) for partially defining the mold cavity (26), with a vertically extending first dividing surface (20 ', 22'),
    • Providing or producing a second mold part (22, 34) for partially defining the mold cavity (26), having a second dividing surface (22 ", 34") extending complementary to the first dividing surface (20 ', 22'), the first dividing surface (20 ', 22') of the first mold part (20, 22) and the second dividing surface (22 ", 34") of the second mold part (22, 34) are intended to be joined together to form a part of the mold cavity (26),
    • Providing or producing a feeder insert (24, 24 ') for positioning in said first mold part (22, 34), the feeder insert (24, 24') having a volume center of gravity offset relative to the opening axis of its passage opening,
    • Positioning the feeder sleeve (24, 24 ') in one of said mold parts (20, 22, 34) such that the opening axis (62) of the feeder sleeve (24, 24') is below its center of gravity, and then
    • Producing the casting mold (1) with the mold cavity (58) by joining the first dividing surface (20 ', 22') of the first mold part (20, 22) to the second dividing surface (22 ", 34") of the second mold part (22, 34 ).
24. 24. Method according to aspect 23,
    wherein one of said mold parts (20, 22, 34) has a recess (32) and the feeder insert (24, 24 ') for positioning in the prefabricated mold part (20, 22, 34) of the mold (1) in this recess (32 ) is used.
25. 25. Method according to one of aspects 23 and 24,
    wherein the casting mold (1) with vertical division and a mold insert (24, 24 ') attached to the casting mold (1) is produced in a molding installation (2) with an endless molding strand (28).
26. 26. Method according to one of aspects 23 to 25,
    wherein the feeder insert (24, 24 ') is positioned in the first and / or the second mold part (20, 22, 34) of the mold (1), said mold parts (20, 22, 34) in a molding plant ( 2) are prefabricated with an endless molding strand (28).
27. 27. Method according to one of aspects 23 to 26,
    wherein the first and / or the second molded part (20, 22, 34) are prefabricated in a molding chamber (6) of said molding installation (2) by injecting molding material (4) into the molding chamber (6) and preferably compacting it.
28. 28. Method according to one of aspects 23 to 27,
    wherein the first and the second molded part (20, 22, 34) are produced in a molding chamber (6) of a molding installation (2) with a pivoting plate (16) and a pressing plate (14), wherein injected molding material (4) is displaced by a relative movement between the swivel plate (16) and the pressing plate (14) is compressed.
29. 29. Method according to one of aspects 23 to 28,
    wherein the first and / or the second molded part (20, 22, 34) are produced in a molding chamber (6) of said molding plant (2) partially supported by a positive model (40) of at least a portion of the feeder sleeve (24, 24 '). is limited.
30. 30. Method according to aspect 29,
    wherein the mold chamber (6) is formed between a pivot plate (16) and a press plate (14), wherein the positive model (40) is disposed on the pivot plate (16) or the press plate (14).
31. 31. Method according to one of aspects 27 to 30,
    wherein during the compression of the first and / or second shaped part (20, 22, 34) of the casting mold (1) on opposite surfaces of the first molded part contour regions of mold cavities of two adjacent casting molds are formed.
32. 32. Method according to one of the preceding aspects,
    wherein the feeder insert (24, 24 ') is automatically positioned by hand or by means of an insertion device (30) in the first and / or second molded part (20, 22, 34).
33. 33. Method according to aspect 32,
    wherein the feeder insert (24, 24 ') during positioning in the first and / or second mold part (20, 22, 34) by means of vacuum or positive engagement on a holding part of the insertion device (30) is held.
34. 34. Mold comprising vertical molding
    1. a) a first molded part (20, 22), and
    2. b) a feeder insert (24, 24 ') positioned in the first mold part for the feed of the mold cavity (26) during the casting process,
    preparable according to a method according to one of the aspects 23 to 33,
    wherein the feeder insert (24, 24 ') is positioned in the first mold part (20, 22) of the mold (1) such that its opening axis (62) extends below its center of gravity.
35. 35. casting mold according to aspect 34,
    wherein in the first mold part (20, 22) and / or a complementary second mold part (22, 34) one or more venting openings (66) for venting the feeder insert (24, 24 ') are arranged corresponding venting channels.
36. 36. Casting mold according to one of the preceding aspects,
    wherein a preferably planar wall portion of the mold cavity (26) from the outer wall of the feeder insert (24, 24 ') is formed.
37. 37. Feeding insert (24, 24 ') with a volume center of gravity offset relative to the opening axis of its passage opening, for use according to one of aspects 1 to 22, wherein the feeder insert (24, 24')
    a first end (50) having a passageway (60), a second end (52), and one or more sidewalls (54) extending from the first to the second end defining a riser cavity (58) for receiving liquid metal; and
    a wall portion (56) disposed at the first end (50) forming a side wall portion of the mold cavity (26) of the mold (1),
    wherein in which the passage opening (60) having wall portion (56) additionally one or more openings (66) for venting the feeder cavity (58) and / or engaging therein retaining means of an insertion device (30) are arranged, and
    wherein the feeder insert (24, 24 ') with respect to its longitudinal extension in the direction of the opening axis (62) by no more than 5%, preferably not more than 2% non-destructive upsetting.
38. 38. Feeding insert according to aspect 37,
    wherein the feeder sleeve (24, 24 ') has an outer cross-sectional area increasing from the second end (52) towards the first end (50).
39. 39. Feeding insert according to one of aspects 37 and 38,
    wherein the feeder insert (24, 24 ') is open at its second end (52), which is arranged opposite the wall section (56) with the passage opening (60).

LIST OF REFERENCE NUMBERS 1. mold 35, 35 ' Movement swivel plate Second molding plant 36 swivel axis 4th molding 37, 37 ' Swinging swivel plate 6th forming chamber 8th. feeding 38 Positive model casting 10, 12 wall area 39 Output molding 14th press plate 39 ' Return movement plunger 16th swivel plate 40 Positive model feeder insert 18th plunger 41, 41 ' contour area 20, 22 molding 42 metal 20 ', 20 " dividing surface 50 first end 22 ', 22 " dividing surface 52 second end 24, 24 ' feeder sleeve 54 Side wall 26 mold cavity 56 conversion section 28 Moldings strand 58 Speiser cavity 29 Compression plunger 60 Through opening 30 insertion device 62 opening axis 32 recess 64, 64 ' wall surface 33, 33 ' Movement insertion device 66 vent 34 molding 68 opening axis 34 ', 34 " dividing surface 70 web

Claims (15)

Use of a feeder insert (24, 24 ') with a volume center of gravity displaced relative to the opening axis (62) of its passage opening (60) in the production of a mold (1) with vertical division of form and a feeder insert (24, 24' attached to the casting mold (1)). ) for the sealing feed of the mold cavity (26) during the casting process,
in which
the feeder insert (24, 24 ') is positioned in a prefabricated molded part (20, 22, 34) of the casting mold (1) such that its opening axis (62) extends below its center of gravity. Use according to claim 1,
wherein the feeder insert (24, 24 ') for positioning in the prefabricated mold part (20, 22, 34) of the mold (1) in a recess (32) in the prefabricated mold part (20, 22, 34) of the mold (1) is used .
wherein the feeder insert (24, 24 ') is preferably automatically inserted into the recess (32) manually or by means of an insertion device (30). Use according to one of claims 1 or 2,
wherein the mold (1) with a vertical shape division and a to the mold (1) attached feeder insert (24, 24 ') for feeding the mold cavity (26) during the casting process in a molding plant (2) with an endless mold strand (28) is produced. Use according to one of claims 1 to 3,
wherein the molding (20, 22, 34) is prefabricated in a molding chamber (6) which is partially bounded by a positive model (40) of at least a portion of the feeder sleeve (24, 24 '). Use according to one of the preceding claims,
the feeder insert (24, 24 ') - a first end (50) having a passage opening (60), a second end (52) and one or more extending from the first to the second end (50, 52) side walls (54) having a feeder cavity (58) to limit the absorption of liquid metal, and - Has a at the first end (50) arranged wall portion (56) which forms a lateral wall portion of the mold cavity (26) of the mold (1). Use according to claim 5,
wherein in the passage portion (56) having the passage opening (60) additionally one or more openings (66) for venting the feeder cavity (58) and / or engaging therein holding means of an insertion device (30) are arranged. Use according to one of claims 5 to 6,
wherein the feeder insert (24, 24 ') with respect to its longitudinal extension in the direction of the opening axis (62) by no more than 5%, preferably not more than 2% non-destructive upsetting. Use according to one of claims 5 to 7,
wherein the feeder insert (24, 24 ') has a cross-section with an increasing from the second end in the direction of the first end outer cross-sectional area and / or
wherein the feeder insert (24, 24 ') is open at its second end (52), which is arranged opposite the wall section (56) with the passage opening (60). Method for producing a mold (1) with vertical division of form and a feeder insert (24, 24 ') attached to the casting mold (1) for feeding the mold cavity (58) during the casting process, comprising the following steps: Providing or producing a first mold part (20, 22) for partially defining the mold cavity (26), having a vertically extending first dividing surface (20 ', 22'), Providing or producing a second mold part (22, 34) for partially defining the mold cavity (26), with a second dividing surface (22 ", 34") extending complementary to the first dividing surface (20 ', 22'), the first dividing surface ( 20 ', 22') of the first mold part (20, 22) and the second dividing surface (22 ", 34") of the second mold part (22, 34) are intended to be joined to form a part of the mold cavity (26). - providing or producing a feeder insert (24, 24 ') for positioning in said first mold part (22, 34), wherein the feeder insert (24, 24') has a volume center of gravity offset relative to the opening axis of its passage opening, - Positioning of the feeder insert (24, 24 ') in one of said mold parts (20, 22, 34), so that the opening axis (62) of the feeder insert (24, 24') extends below its center of gravity, and then Producing the casting mold (1) with the mold cavity (58) by joining together the first dividing surface (20 ', 22') of the first mold part (20, 22) with the second dividing surface (22 ", 34") of the second mold part (22, 22) 34). Method according to claim 9,
wherein one of said mold parts (20, 22, 34) has a recess (32) and the feeder insert (24, 24 ') for positioning in the prefabricated mold part (20, 22, 34) of the mold (1) in this recess (32 ) is used,
wherein the feeder insert (24, 24 ') is preferably positioned automatically in the first and / or second shaped part (20, 22, 34) manually or by means of an insertion device (30). Method according to one of claims 9 to 10,
wherein the casting mold (1) with vertical division and a mold insert (24, 24 ') attached to the casting mold (1) is produced in a molding installation (2) with an endless molding strand (28). Method according to one of claims 9 to 11,
wherein the first and / or the second molded part (20, 22, 34) are produced in a molding chamber (6) of said molding plant (2) partially supported by a positive model (40) of at least a portion of the feeder sleeve (24, 24 '). is limited. Includes mold with vertical shape division a) a first molded part (20, 22), and b) a feeder insert (24, 24 ') positioned in the first mold part for the feed of the mold cavity (26) during the casting process, preparable according to a method according to one of claims 9 to 12,
wherein the feeder insert (24, 24 ') is positioned in the first mold part (20, 22) of the mold (1) such that its opening axis (62) extends below its center of gravity. Casting mold according to claim 13,
wherein in the first mold part (20, 22) and / or a complementary second mold part (22, 34) one or more venting openings (66) for venting the feeder insert (24, 24 ') are arranged corresponding venting channels. Feeder insert (24, 24 ') with a volume center of gravity offset relative to the opening axis of its passage opening, for use according to one of claims 1 to 8, wherein the feeder insert (24, 24')
a first end (50) having a passageway (60), a second end (52), and one or more sidewalls (54) extending from the first to the second end defining a riser cavity (58) for receiving liquid metal; and
a wall portion (56) disposed at the first end (50) forming a side wall portion of the mold cavity (26) of the mold (1),
wherein in which the passage opening (60) having wall portion (56) additionally one or more openings (66) for venting the feeder cavity (58) and / or engaging therein retaining means of an insertion device (30) are arranged, and
wherein the feeder insert (24, 24 ') with respect to its longitudinal extension in the direction of the opening axis (62) by no more than 5%, preferably not more than 2% non-destructive upsetting.

Images