Device for adjusting a mold spray head in die casting process

Abstract

The invention relates to a device for adjusting the mold spray head in the die casting process. This device comprises a support frame (1) and at least one mold die (2a, 2b, 2c, 2d, 2e, 2f) arranged on the support frame (1), wherein the support frame (1) is designed to support the mold spray head with a series of nozzles and wherein at least one section of the mold die (2a, 2b, 2c, 2d, 2e, 2f) with its shape copies the contour of the inner surface of the actual die casting mold for the production of the casting.

Description

Technical field

[0001] The present invention relates to a device for adjusting the mold spray head in the die casting process. Specifically, the invention relates to a device that enables convenient and time-efficient adjustment of the mold spray head, including, for example, adjusting the correct inclination of the nozzles arranged on the mold spray head. State of the art

[0002] Die casting (or high-pressure casting) is used for casting parts in various industries, including the automotive industry, for example, for casting aluminum cylinder crankcases. These aluminum cylinder crankcases are currently produced almost exclusively on cold horizontal chamber casting machines. The manufacturing process begins with the crucial step of spraying the inner surface of the mold with a release agent. This step ensures easy separation of the casting from the mold after it has completely solidified and cooled to the specified temperature. Only after the inner surface of the mold has been sprayed with a release agent is the mold closed and the molten metal metered into the casting chamber.In current machines, the dosing is automatic and is carried out by a dosing device into the casting chamber, and the molten metal is then shot into the cavity of the die-casting mold with a hydraulic piston.

[0003] The quality of high-pressure die-cast parts is influenced by a number of factors, such as the casting design itself, the quality of the melt, technological parameters, the design of the die-casting mold (design of the inlet, venting, and temperature control systems), and also by the type and quality of the release agent spraying applied to the mold's inner surface. According to current technology, the spraying of the mold's inner surface is carried out automatically via a nozzle array mounted on a so-called mold spray head, which is attached to a two-axis manipulator or a mold spraying robot. The manipulator's advantages lie primarily in its speed, ease of maintenance, and control. However, its movement is limited to two axes, whereas the robot moves along six axes and is therefore able to spray even hard-to-reach areas.

[0004] Although the mold spray head is controlled by a manipulator or robot, optimal spraying of the die-casting mold requires, in particular, the correct nozzle setting. According to current technology, this must be done manually, directly on the die-casting machine in the area of ​​the open die-casting mold. To adjust the nozzle angle or its distance from the inner mold surface, the die-casting machine must be stopped and the automatic mode interrupted. This typically results in a loss of approximately 45 minutes of production time for the die-casting machine, and such adjustment of the mold spray head must be carried out regularly, once a week.Furthermore, adjusting the nozzles is quite complicated, requiring the presence and cooperation of two workers (the casting machine operator and a die-casting specialist), and is also complicated by the fact that it takes place under very unfavorable working conditions. The residual heat from the mold's inner surface or the temperature of other components of the casting machine poses a burn risk to the operator, and the radiant heat from the mold also represents an overload. Adjusting the nozzles of the mold spray head itself is also ergonomically awkward for the operator. Due to all these unfavorable factors, it is difficult for the operator to adjust the mold spray head correctly and with sufficient precision, even though great emphasis is currently placed on the accuracy of the adjustment, for example, with regard to new methods of applying the release agent through so-called micro-spraying.

[0005] Patent literature contains documents describing solutions for adjusting the nozzles of the mold spray head, but these solutions relate to adjusting the mold spray head in the die-casting mold area of ​​the casting machine. Chinese utility model CN ​​214 132 252 U describes adjusting nozzles using a control ring and a pair of locking rods, while the published US patent application US 2020 / 0 114 418 A1 describes a measuring unit with a two- or three-axis gyroscope for nozzle adjustment. Document CN 209 935 017 U implements nozzle adjustment via an electrically controlled sliding mechanism.

[0006] Furthermore, publication CZ 35 878 U1 discloses equipment for micro-lubrication of aluminum casting molds, publication FR 2 044 311 A5 discloses an automatic device for the maintenance of mold tools, publication CN 110 125 360 A1 discloses a release agent spraying mechanism and a release agent spraying device therewith, publication CN 113 523 231 A1 discloses an automatic system for removing components for 5G optical modules and for spraying release agents, and publication US 2018 / 0 201 537 A1 discloses a lubrication of tubular molds in a manufacturing process for hollow glass products.

[0007] It would therefore be appropriate to propose a solution that allows for sufficiently precise and convenient adjustment of the mold spray head, thereby eliminating the production time loss associated with the casting machine. At the same time, the new solution should be characterized by a simple and robust mechanical design, without requiring a number of expensive electronic components. Description of the invention

[0008] The aforementioned disadvantages are partially solved by the device for adjusting the mold spray head in the die casting process, the embodiment of which comprises a support frame and at least one mold die arranged on the support frame, wherein the support frame is designed to accommodate the mold spray head with a series of nozzles and wherein at least one section of the mold die, with its shape, copies the contour of the top of the actual die casting mold for the production of the casting.

[0009] Thanks to the device according to the present invention, it is possible to adjust the mold spray head outside the open die-casting mold, i.e., practically anywhere the device is located. Adjusting the mold spray head is thus more precise and efficient, since the operator is not exposed to high heat as when adjusting directly in the area of ​​the open, hot die-casting mold. This naturally also increases occupational safety, as the risk of burns from the die-casting mold is eliminated, and improves ease of adjustment, since good access to the device from all sides is also more ergonomically friendly for the operator. The adjustment can also be carried out independently of the operating mode of the die-casting machine and does not require an interruption of the automatic operation, which would otherwise result in a production time loss of approximately 45 minutes per machine per week.Because the adjustment takes place outside the die-casting mold itself, multiple people are not required for this task – usually, the mold operator does not need to be present, but only a die-casting specialist or another worker who knows how to properly adjust the mold spray head. The device is fully functional even without a power supply and operates as a purely mechanical assembly, meaning that the adjustment process cannot be interrupted by a power outage. The device's design is robust and requires no expensive electronic components or sensors.

[0010] In this case, at least one mold is movable relative to the support frame, making it possible to adapt the mold spray head to the different shapes of castings for which the mold spray head is to be used.

[0011] The support frame preferably comprises a base and at least one positioning frame arranged on the base, wherein at least one positioning frame is movable relative to the base and / or relative to another positioning frame. The sliding movement of the mold dies relative to the support frame is therefore achieved by using positioning frames, which facilitate the adjustment process. These positioning frames can be moved individually, allowing the individual parts of the mold spray head to be adjusted successively.

[0012] At least one mold is preferably mounted on at least one positioning frame and is movable relative to this positioning frame. This makes the adjustment process even more convenient and simpler, and also ensures movement of the mold in all three axes. This allows the mold spray head to be adjusted after changing the molds to accommodate the different shapes of the castings.

[0013] The support frame is preferably made of aluminum profiles, which makes it lightweight and allows it to be moved when needed, for example, if it is equipped with wheels. Furthermore, the aluminum profiles allow for easy connection to the resulting support frame and are also designed to withstand mutual sliding motion.

[0014] The support frame preferably comprises a stand designed to support the molding spray head and a molding spray head holder designed to attach the molding spray head. Together with the holder, the stand ensures a stable position of the base in the work area and prevents, for example, unwanted pushing, wobbling, or tipping movements, so that the molding spray head can be conveniently adjusted as needed.

[0015] At least one mold is preferably manufactured as a 3D-printed part. Using 3D printing, the individual molds can be created according to the model that reflects the shape of the casting, or in such a way that the respective mold replicates the shape of the inner surface of the actual die-casting mold for casting production. The 3D printing process is also relatively inexpensive, and it is possible to produce several different molds and attach them to the support frame as needed, depending on how the mold spray head is to be set up or for which shape of casting the mold spray head will subsequently be used in the operation of the die-casting machine. Explanation of the drawings

[0016] The invention is further explained by means of exemplary embodiments, which are described using drawings, showing: Fig. 1a the device according to the present invention, Fig. 1b the device according to the present invention in a side view, Fig. 1c the device according to the present invention in a top view, Fig. 2a the base with the mold spray head holder in an exploded view in a first embodiment according to the present invention, Fig. 2b the base with the mold spray head holder in a first embodiment according to the present invention in a side view, Fig. 2c the base with the mold spray head holder in a first embodiment according to the present invention in a bottom view, Fig. 3a the connection of the first type in an exploded view, Fig. 3b the connection of the second type in an exploded view, Fig. 4a the first positioning frame with the first mold die in an exploded view, Fig.4b the first positioning frame with the first mold in the contour section view of the first mold. Fig. 5 the second positioning frame with a second mold in exploded view, Fig. 5b the second positioning frame with the second mold in the contour section view of the second mold, Fig. 6 the third mold in exploded view, Fig. 6b the third mold in the contour section view of the third mold, Fig. 7 the fourth positioning frame with the fourth mold in exploded view, Fig. 7b the fourth positioning frame with the fourth mold in the contour section view of the fourth mold, Fig. 8 the fifth positioning frame with the fifth mold in exploded view, Fig. 8b the fifth positioning frame with the fifth mold in the contour section view of the fifth mold.Fig. 9a shows the sixth positioning frame with the sixth forming die in an exploded view, and Fig. 9b shows the sixth positioning frame with the sixth forming die in a view of the contour section of the sixth forming die. Exemplary embodiments of the invention

[0017] The invention will now be explained with reference to the exemplary embodiments shown in the figures.

[0018] The device for adjusting the mold spray head in the die casting process in a first embodiment, shown in Fig. 1a to Fig. 9b , includes a carrying frame 1 and six form matrices 2a, 2b, 2c, 2d, 2e, 2f - i.e. the first die 2a, the second die 2b, the third die 2c, the fourth die 2d, the fifth die 2e and the sixth die 2f , which are individually located on different sections of the support frame 1are arranged. The following text describes the support frame 1 in more detail and also refers to the individual form matrices. 2a, 2b , 2c, 2d, 2e , 2f received.

[0019] The carrying frame includes a base 1a, for holding the mold spray head and other parts of the carrying frame 1 is designed. These other parts of the carrying frame 1, those from the base 1a They are worn as the first positioning frame 3a, the second positioning frame 3b , the third positioning frame 3c , the fourth positioning rack 3d , the fifth positioning frame 3e and the sixth positioning frame 3f The base 1a in the first embodiment according to Figs. 2a to 2cIt comprises two parallel aluminum longitudinal profiles connected by several other profiles, namely three transverse aluminum profiles. Additional profiles are attached to the underside of the longitudinal profiles, oriented perpendicular to them. In actual use, when adjusting the spray head, the aforementioned longitudinal profiles are horizontally oriented, as are the aforementioned transverse profiles, while the profiles perpendicular to them are vertically oriented. For the sake of clarity, the following also applies to the description of the support frame. 1 These terms (horizontal, vertical) are used.

[0020] The vertical profiles of the base 1a They are therefore attached to the horizontal longitudinal profiles at their first ends, with a connection for joining them. 4 of the first type is applied, the detailed arrangement of which is shown in the exploded view in Fig. 3a shows. This connection4 The first type is implemented as a corner coupling, which is connected by means of screws. 7 and T-nuts 6 It is attached to the individual profiles being joined. These T-nuts 6 They are designed so that they can be inserted, preferably, into the groove arranged on the side wall of the profiles. In the first embodiment according to the accompanying figures, the support frame consists of 1 made of aluminum profiles, each comprising four grooves formed in one of the four side walls of the profile, and an opening located in the center of the profile. The T-nut is therefore also designed with this groove arrangement in mind. 6 shaped by the movement of the slotted stone 6 The groove allows for the mutual shearing movement of the individual profiles. Thus, although the connection 4The first type is primarily used for the firm joining of individual profiles and for reinforcing the supporting frame. 1 This can be done by loosening the screws. 7 whose mutual thrust movement is enabled. The connection 4 The first type is also used to create other base profiles. 1a to combine, e.g. to connect longitudinal profiles with the central cross-section, as well as the Figure 2a can be seen from this.

[0021] At the other end of the vertical profiles of the base 1a There are also additional horizontal aluminum profiles attached, to which, for example, screws can be used. 7 a bracket 9 of the mold spray head, which is used to attach the mold spray head or to attach the base 1a is designed for the mold spray head. In the first embodiment, the mutual connection between the mold spray head and the holder is 9of the mold spray head, which forms part of the base 1a forms, by means of screws 7 This is realized. Alternatively, a different type of connecting element can also be used. In the first embodiment, the device according to the invention also includes a stand (not shown in the accompanying figures) which supports a further part of the support frame. 1 represents and is responsible for a stable position of the base 1a in the workspace and, for example, prevents the base from tipping over unintentionally. 1a and the mold spray head attached to it. This stand rests on the floor of the work area and supports the mold spray head, which is secured to the stand with a locking pin that prevents the mold spray head from tipping sideways and falling off the stand. In the first embodiment, the support frame is therefore 1designed to support the molding spray head in such a way that the molding spray head is supported by the stand, on which it can be locked against tipping or falling by a locking bolt, and the molding spray head is further secured at the base 1a using the bracket 9 The mold spray head is attached, for example, by being screwed on. The stand can also be equipped with wheels to transport a supported and locked mold spray head, either with or without the attached base. 1a .

[0022] Alternatively, the carrying frame must 1 It may not include a stand, but may be suitable, for example, for ceiling suspension or wall mounting in the workspace, provided that such a design does not restrict the function of the device. In particular, it must therefore be possible to use positioning racks. 3a , 3b , 3c , 3d, 3e, 3fto move in relation to the mold spray head to be adjusted and by means of such a carrying frame 1 To ensure reliable support (whether by support, suspension, or locking) of the mold spray head. For reliable handling, this design should also allow for a sliding motion of the positioning frames. 3a , 3b , 3c , 3d , 3e , 3f relative to the base 1a possibly to another of the positioning racks 3a , 3b , 3c , 3d , 3e , 3f , enabling, thanks to which it is possible to adjust the position of the individual form matrices 2a , 2b , 2c , 2d , 2e , 2f to adjust as needed, as described below.

[0023] In addition to the connections 4 The first type includes the carrying frame 1 also connections 5of the second type. The connection 5 The second type is used, for example, for joining the cross-section of the base. 1a and the two longitudinal profiles of the base 1a used and its detailed arrangement the exploded view in Fig. 3b shows. With regard to the arrangement of the groove in the side wall of the profiles, the connection indicates 5 of the second type a slotted nut at its first end 6 on, which is shaped complementarily to the shape of the groove, wherein this T-nut 6 It can be placed into the groove at the end of the profile. The other end of the connection 5 The second type, however, is shaped to fit into the opening in the middle of the profile. This opening and connection 5 The second type can advantageously have a thread, so that the distance between the profiles to be joined can be changed if necessary. The T-nut 6In the first embodiment, it also has a flexible part that holds the T-nut. 6 locked in the groove, thus preventing unintentional movement in the groove (e.g., unwanted slippage when used with a vertical profile), but at the same time limiting the shear movement of the T-nut. 6 in the groove is not prevented if the part to which the T-nut is attached 6 is attached, is moved. For example, in the case where one of the positioning devices is moved. 3a , 3b , 3c , 3d , 3e , 3f is being moved.

[0024] Through the connection 5 of the second type, for example, two of the three cross-sections of the base are in the first embodiment. 1a with the longitudinal profiles of the base 1a joined together, with a connection at each end of the cross-section 5 of the second type is present. The two outermost cross-sections of the base1a are therefore in contrast to the longitudinal profiles of the base 1a Shear-movable. On these two cross-sections of the base 1a are other parts of the carrying frame 1 attached, on which the individual form matrices 2a , 2b , 2c , 2d , 2e , 2f are arranged .

[0025] The first of these parts of the carrying frame 1 is the first positioning frame 3a , which together with the first die 2a in Figure 4a and Figure 4b The first positioning frame is shown. 3a In the first embodiment, it comprises two vertical profiles and connecting elements. 8, those used to attach the first positioning frame 3a at the base 1a These fasteners serve as fasteners. 8 In the first embodiment, they are designed as connecting cantilevers and also include screws. 7and T-nuts 6 , which have already been described in more detail above and which control the thrust movement of the first positioning frame 3a opposite the base 1a enable this. Thanks to this thrust movement, the thrust movement of the first forming die is also possible. 2a relative to the base 1a possible, since the first die 2a on the first positioning frame 3a is attached. The attachment of the first die 2a on the first positioning frame 3a However, in the first embodiment, T-nuts are also used. 6 realized, so that the first die 2a also directly opposite the first positioning frame 3a is movable. Alternatively, the first die can be used. 2a with the first positioning frame 3a They are connected in a rigid manner. For ease of handling, the first positioning frame includes 3a Handles 10,which are attached to individual vertical profiles.

[0026] The first forming die 2a includes a contour section, and this contour section of the first mold 2a Its contour corresponds to the contour of the inner surface of the actual die-casting mold for casting production. The contour section of the first mold die. 2a is best in Fig. 4b to see, and it is the section or side of the first form matrix 2a, the first positioning frame 3a turned away. If we look at the side of the first die 2a, at which the vertical profiles of the first positioning frame 3a are attached as the back of the first mold. 2a If the contour section is designated as such, then it corresponds to the contour section of the first die. 2a the front of the first die 2aIn the first embodiment according to the present invention, the contour section of the first die is copied. 2a the contour of the inner surface of the solid part of the die-casting mold, wherein the specific contour of the contour section is chosen according to the contour of the inner surface of the actual die-casting mold for which the mold spray head is to be set.

[0027] In addition to the first forming die 2a, While the device corresponds to the fixed part of the die-casting mold, it also contains other mold dies. 2b , 2c , 2d , 2e , 2f , which correspond to the other parts of the die-casting mold, namely the movable parts of the die-casting mold for the production of the casting.

[0028] The second forming die 2b is together with the second positioning frame 3b in Fig. 5a and Fig. 5b The arrangement of the second positioning rack is shown. 3bincludes, as well as the first positioning frame 3a , two vertical profiles and fastening elements 8, the one used to attach the second positioning frame 3b at the base 1a These fasteners serve as fasteners. 8 also include T-nuts 6, which the thrust movement of the second positioning frame 3a relative to the base 1a enable this. Thanks to this thrust movement, the thrust movement of the second forming die is also possible. 2b possible relative to the base, since the second die 2b on the second positioning frame 3b is attached. The attachment of the second die 2b on the second positioning frame 3b However, in the first embodiment, T-nuts are also used. 6 realized, thereby creating the second die 2a also directly opposite the second positioning frame 3bIt is shear-movable. The second positioning frame 3b It also includes a horizontal profile and the corresponding T-nuts. 6 for the shear movement in the groove of this horizontal profile. Thus, the shear movement of the second die is 2b opposite the base 1a in all three spatial axes. Alternatively, the second die can be used. 2b and the second positioning rack 3b They are connected to each other in a fixed manner. For more convenient handling, the second positioning frame also includes... 3b Handles 10, which are attached to individual vertical profiles.

[0029] Analogous to the first forming die 2a The second die contains 2b A contour section whose contour corresponds to the contour of the inner surface of the actual die-casting mold for casting production. The contour section of the second mold die. 2b is best in Fig. 5bdepicted and located on the front of the second forming die 2b , wherein the vertical profiles of the second positioning frame 3b on the back of the second die 2b are attached. In the first embodiment according to the present invention, the contour section of the second mold is copied. 2b The contour of the surface of the moving part of the die-casting mold, wherein the specific contour of the contour section is selected according to the contour of the inner surface of the actual die-casting mold for which the mold spray head is to be adjusted. As the Fig. 1a As can be seen, the second forming matrix 2b compared to the first die 2a arranged so that the contour section of the second die 2b the contour section of the first die 2a is facing. Between the first die 2a and the second die 2bPart of the base is located there 1a with bracket 9 of the mold spray head and space for attaching the mold spray head to be adjusted.

[0030] Furthermore, in the first embodiment, the device has a third positioning frame. 3c up, the two on the basis 1a includes arranged horizontal profiles, perpendicular to the horizontal longitudinal profiles of the base 1a , as is the case, for example, in Fig. 2a or Fig. 2c The two horizontal profiles of the third positioning frame are visible. 3c are connected to each other by shorter horizontal cross profiles, which are connected to the two longer profiles of the third positioning frame by means of a connection 5 of the second type are joined together, which are connected by the T-nut 6 The third positioning frame enables the shear movement of the transverse profiles relative to the longer longitudinal profiles. 3calso features other T-nuts 6 on, which the thrust movement of the third positioning frame 3c along the base 1a of the carrying frame 1 enable. The fourth positioning frame can be attached individually to the listed horizontal cross profiles. 3d with the fourth die 2d and the fifth positioning rack 3e with the fifth die 2e attached, comprising a pair of vertical profiles. At the lower end, these vertical profiles of the fourth positioning frame are 3d and the fifth positioning rack 3e on the sixth positioning rack 3f It is mounted in a sliding manner. The sixth positioning frame 3f is for attaching the sixth mold die 2f designed and includes two horizontal profiles that run parallel to the two longer horizontal profiles of the third positioning frame 3care aligned. The third positioning rack 3c , the fourth positioning rack 3d, the fifth positioning frame 3e and the sixth positioning frame 3f together they form part of the support frame 1 , which resembles a rectangular frame, on whose four sides individual shape matrices are located 2c , 2d , 2e , 2f are located, for example in Fig. 1a is shown.

[0031] The third die 2c However, in the first embodiment, the carrying frame 1 They are attached differently than the other form matrices. 2a , 2b , 2d , 2e , 2f , since they are not on the third positioning rack 3c , but directly at the base 1a is attached in a sliding-moving manner. The third forming die provides for this sliding connection. 2c according to Fig. 6a and Fig. 6ba projection on both side walls 11 on, which fits into the groove in the horizontal longitudinal profiles of the base 1a It fits. The third die features a design for easier movement. 2c a hand movement 10 Alternatively, the third die can be used. 2c on the third positioning frame 3c to be attached, in this case the handle 10 on the third positioning frame 3c It could be arranged. After inserting the projection. 11 The third die is inserted into the groove of the profile. 2c so that its contour section points downwards. The contour section of the third die 2cIn the first embodiment, the contour of the surface of the movable part of the die-casting mold is copied, wherein the specific contour of the contour section is selected according to the contour of the inner surface of the actual die-casting mold for which the mold spray head is to be adjusted.

[0032] The fourth die 2d together with the fourth positioning frame 3d is in Fig. 7a and Fig. 7b shown, and the fifth die 2e is together with the fifth positioning frame 3e in Fig. 8a and Fig. 8b The arrangement of the fourth positioning rack is shown. 3d and the fifth positioning rack 3e are very similar to each other and also resemble the arrangement of the first positioning rack. 3a The pair of vertical profiles of the fourth positioning rack 3d or the fifth positioning frame 3eHowever, in the first embodiment, a different type of fastening element is used at the upper end. 8 on as in the first positioning frame 3a In the first embodiment, this fastening element 8 as one with screws 7 A screwed-in plate is used, the thickness of which is chosen to be less than the width of the groove. The sliding motion of the plate in the groove then provides the sliding motion for the fourth positioning frame. 3d or the fifth positioning frame 3e compared to the third positioning frame 3c The thrust movement of the fourth positioning frame 3d or the fifth positioning frame 3e compared to the third positioning frame 3c However, it is also caused by the thrust movement of the transverse horizontal profiles of the third positioning frame. 3ccompared to the two longer horizontal profiles of the third positioning frame 3c concerned, namely by means of the connection 5 of the second type, as mentioned above. For the device to function reliably, it is sufficient that the fourth positioning frame 3d or the fifth positioning rack 3e firmly attached to these cross profiles of the third positioning frame 3c is connected. For more convenient handling, the fourth positioning frame includes_ 3d or the fifth positioning frame 3e Handles 10, which are attached to vertical profiles.

[0033] Again Fig. 1a As can be seen, the fourth forming matrix 2d opposite the fifth die 2e arranged so that the contour section of the fourth die 2d the contour section of the fifth die 2eis facing. In the first embodiment according to the present invention, the contour section of the fourth mold is copied. 2d The contour of the surface of the moving part of the die-casting mold, in particular the so-called inner surface of the die-casting mold for casting production. The specific design of the contour section of the fourth mold die. 2d Therefore, the selection is made according to the contour of the inner surface in the ZKG end area of ​​the actual die-casting mold, for which the mold spray head is to be adjusted. The fifth mold die 2e This corresponds analogously to another movable part of the die-casting mold, the so-called ZKG coupling area. In the first embodiment, the fourth mold die is... 2d with the fourth positioning frame 3d using T-nuts 6 connected in a shear-moving manner, while the fifth form matrix 2e in the same way with the fifth positioning frame3e connected .

[0034] The sixth die 2f is together with the sixth positioning frame 3f in Fig. 9a and Fig. 9b shown. The sixth positioning frame 3f In the first embodiment, it comprises two horizontal profiles and connecting elements 8, which form a sliding connection of the fourth positioning frame. 3d and the fifth positioning rack 3e with the sixth positioning frame 3f enable these connecting elements 8 are designed as connecting push blocks, the upper side of which is used to attach the fourth positioning frame 3d or the fifth positioning frame 3e serves and is located on the underside for a push movement on the horizontal profiles of the sixth positioning frame 3f are designed by using T-nuts 6These include features that allow for a sliding movement in the groove of the horizontal profile. For more convenient handling, the sixth positioning frame includes... 3f Handles 10, which are attached to horizontal profiles.

[0035] The sixth die 3f is done by means of screws 7 attached to the horizontal profiles of the sixth positioning frame. As the Fig. 1a As can be seen, the sixth forming matrix is 2f compared to the third die 2c arranged so that the contour section of the sixth die 2f the contour section of the third die 2c is facing. In the first embodiment according to the present invention, the contour section of the sixth mold is copied. 2f the contour of the surface of the movable part of the die-casting mold, wherein the specific design of the contour section of the mold die 2fis selected according to the contour of the inner surface of the actual die-casting mold for which the mold spray head is to be adjusted.

[0036] Individual form matrices 2a , 2b , 2c , 2d , 2e , 2f They are preferably produced as 3D-printed plastic parts. By modifying the contour of these molds. 2a , 2b , 2c , 2d , 2e , 2f Is it then possible to modify the device for adjusting the mold spray head specifically for the respective die-casting mold? For attaching individual mold dies. 2a , 2b , 2c , 2d , 2e , 2f on the profiles of individual positioning racks 3a , 3b , 3c , 3d , 3e , 3f Can these form matrices 2a , 2b , 2c , 2d , 2e , 2finclude a sheet metal section.

[0037] To adjust the mold spray head, the mold spray head is first attached to the carrying frame. 1 It is attached, specifically placed on a stand that supports it from below, and secured with a locking bolt. The spray nozzle is then attached to the holder. 9 the spray head is attached, preferably screwed on, forming part of the base 1a of the carrying frame 1 Alternatively, the spray nozzle can first be attached to the holder. 9 the mold spray head is attached and then together with the base 1a and the positioning racks 3a , 3b , 3c , 3d , 3e , 3f It must be placed on the stand and secured with a locking bolt.

[0038] Then the individual form matrices are 2a , 2b , 2c , 2d , 2e , 2fpushed towards the mold spray head, specifically towards the nozzles of the mold spray head. The shifting of the mold dies. 2a, 2b, 2c, 2d, 2e, 2f is achieved through the sliding connection of the respective positioning frames 3a , 3b , 3c , 3d , 3e , 3f with the base 1a possibly through the sliding connection of the actual mold dies 2a , 2b , 2c , 2d , 2e , 2f even to the respective positioning racks 3a , 3b , 3c , 3d , 3e , 3f This allows it. Alternatively, the carrying frame can be used 1 It can also be implemented differently, e.g. it does not have to consist of aluminum profiles, or it involves a different number or arrangement of these profiles, or these profiles are connected differently than described above, provided that such a design allows for a shear movement of the mold dies. 2a , 2b , 2c , 2d ,2e , 2f opposite the carrying frame 1 Allows for movement in various directions. Molding dies 2a, 2b, 2c, 2d, 2e, 2f They are preferably set, i.e., shifted, to a distance from the nozzles of the mold spray head that allows for convenient handling of the nozzles and corresponds to the actual adjustment distance used when setting the nozzles in the area of ​​the actual die-casting mold. In particular, the mold dies 2a, 2b, 2c, 2d, 2e, 2f set to a distance of approximately 3-10 cm from the nozzles of the molding spray head.

[0039] The next step is adjusting the mold spray head itself, in particular its nozzles. For example, it is possible to adjust the distance of the nozzles from the contour sections of the individual molds. 2a, 2b, 2c, 2d, 2e, 2f or the angle between the nozzle axis and the plane of the molds 2a , 2b , 2c , 2d , 2e , 2fAdjusting the nozzles is done in principle in the same way as according to the current state of the art; however, thanks to the device according to the invention, this adjustment is not carried out in the area of ​​the open die-casting mold directly on the casting machine, but outside the casting machine, with the mold dies 2a , 2b , 2c , 2d , 2e , 2f The device copies the contour of the inner surface of the actual die-casting mold. This allows the worker to work more carefully (there is no pressure of downtime, as it does not require interrupting the automatic operation of the casting machine), more comfortably, more safely (the adjustment is not made under unfavorable conditions near the actual mold, which is very hot), and ultimately more precisely. Alternatively, the device can also copy only some of the mold dies. 2a , 2b , 2c , 2d , 2e , 2fIt is included, but in this case the device only allows the adjustment of certain nozzles.

[0040] The spray head, adjusted in this way, is then finally attached to the carrying frame. 1 It is removed and ready for use in an actual casting machine, which includes a die-casting mold for part production. If a different shape needs to be cast, not only must the die-casting mold be changed, but the nozzles of the mold spray head must also be readjusted. This is done on the support frame. 1 exactly these kinds of form matrices 2a , 2b , 2c , 2d , 2e , 2f Attached are fixtures that copy the contour of the inner surface of the respective die-casting mold. In practice, it is also possible to assemble and use multiple fixtures, as the construction of aluminum profiles and 3D-printed mold dies is not very expensive. Commercial applicability

[0041] The device described above for adjusting the mold spray head can be used to adjust the mold spray head for different die-casting molds and thus for different mold contours. Die-casting technology is then used in many industries, including the automotive industry, where, for example, cylinder crankcases are cast using this process. Reference symbol list

[0042] 1 - Carrying frame 1a - Base 2a - First mold 2b - Second mold 2c - Third mold 2d - Fourth mold 2e - Fifth mold 2f - Sixth mold 3a - First positioning frame 3b - Second positioning frame 3c - Third positioning frame 3d - Fourth positioning frame 3e - Fifth positioning frame 3f - Sixth positioning frame 4 - First type connection 5 - Second type connection 6 - T-nut 7 - Screw 8 - Connecting element 9 - Mold spray head holder 10 - Handle 11 - Projection

Claims

1. Device for adjusting the mold spray head in a metal die casting method characterized in that it comprises a support frame (1) and at least one mold die (2a, 2b, 2c, 2d, 2e, 2f) arranged on a support frame (1), wherein the support frame (1) is designed to receive the mold spray head with a row of nozzles and wherein at least one section of the mold die (2a, 2b, 2c, 2d, 2e, 2f) in its shape copies the contour of the inner surface of the actual die casting mold for die casting production, wherein at least one mold die (2a, 2b, 2c, 2d, 2e, 2f) can be moved in a displaceable manner in relation to the support frame (1).

2. Device according to claim 1, characterized in that the support frame (1) comprises a base (1a) and at least one positioning jig (3a, 3b, 3c, 3d, 3e, 3f) arranged on the base (1a), wherein at least one positioning jig (3a, 3b, 3c, 3d, 3e, 3f) can be moved in a displaceable manner in relation to the base (1a) and / or in relation to another positioning jig (3a, 3b, 3c, 3d, 3e, 3f).

3. Device according to claim 2, characterized in that at least one mold die (2a, 2b, 2c, 2d, 2e, 2f) is arranged on at least one positioning jig (3a, 3b, 3c, 3d, 3e, 3f) and can be moved in a displaceable manner in relation to this positioning jig (3a, 3b, 3c, 3d, 3e, 3f).

4. Device according to any one of the preceding claims 1 to 3, characterized in that the support frame (1) is made from aluminum profiles.

5. Device according to any one of the preceding claims 1 to 4, characterized in that the support frame (1) comprises a stand designed to support the mold spray head and a mold spray head holder (9) for attaching the mold spray head.

6. Device according to any one of the preceding claims 1 to 5, characterized in that at least one mold die (2a, 2b, 2c, 2d, 2e, 2f) is configured as a 3D printed part.

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