Casting machine and method for casting product

Abstract

The invention relates to a casting machine (10) and a method for casting a product by means of the casting machine, in which a clamping device (12) of the casting machine is used to clamp a casting mould (11) which is formed with at least one upper mould part (16) and one lower mould part (17), in which a cavity (18) of the casting mould accommodates a melt which solidifies and forms the product (41), wherein the clamping device comprises an upper clamping plate (13), a lower clamping plate (14), at least one locking cylinder (15) and a guide device for guiding the at least one movable clamping plate, the casting mould is accommodated between the clamping plates, and the clamping plates are moved relative to each other through the locking cylinder, so that the casting mould is closed or opened. Wherein the product is separated from the casting mold by at least one ejector (19, 20) of at least one of the casting mold parts, and wherein the casting machine generates an opening force by means of the ejectors between the mold parts, which opening force at least partially opens the casting mold.

Description

Technical Field

[0001] The invention relates to a casting machine and a method for casting a product using the casting machine, wherein a casting mold is clamped by a clamping device of the casting machine, wherein the casting mold is formed with at least one upper mold part and a lower mold part, wherein the mold cavity of the casting mold accommodates a melt, the melt solidifies and forms a product, wherein the clamping device comprises an upper clamping plate, a lower clamping plate, at least one locking cylinder and a guiding device for guiding at least one movable clamping plate, wherein the casting mold is accommodated between the clamping plates, wherein the clamping plates are moved relative to each other by the locking cylinder so that the casting mold is closed or opened, wherein the product is separated from the casting mold by at least one ejector of at least one of the mold parts. Background Art

[0002] Such casting machines and methods are well known in the prior art, wherein during casting liquid metal is always filled into the casting mold until the casting mold or the mold cavity of the casting mold is completely filled. After the melt solidifies, the subsequently formed component can be formed or removed from the casting mold. If the casting mold is a permanent mold, it can be formed by an upper mold part and a lower mold part, wherein the mold parts are clamped to each other in a clamping device of the casting machine so that the mold parts are sealed relative to each other. After the mold parts have been clamped in the clamping device, the melt can now be poured into the casting mold using a crucible. The product to be cast is formed by solidification of the melt, wherein in order to shape the product, the upper mold part is separated from the lower mold part again by the clamping device.

[0003] The mold can be accommodated in a clamping device between an upper clamping plate and a lower clamping plate, wherein the clamping plates can be moved relative to each other by at least one locking cylinder to open and close the mold. A guide device is also usually provided here, which can be formed, for example, by a column, on which at least one clamping plate is slidably mounted by a locking cylinder. The guide device enables the clamping plates to be moved relatively parallel to each other by means of the locking cylinder, so that the mold parts of the mold can be moved relatively accurately towards each other and closed. The mold parts are firmly connected to the corresponding clamping plates for this purpose. In addition, at least one ejector is provided, with which the finished product can be ejected from one of the mold parts. The ejector can be formed, for example, by one or more rods, which are arranged in the mold part and extend to the mold cavity. The rod can be driven by an ejector plate and an ejector cylinder, so that the product is separated from the mold part. Usually, after the mold is opened or the upper mold is separated from the lower mold, the product is ejected by the ejector.

[0004] In order to ensure that the upper mold part separates as parallel as possible from the lower mold part when the mold is opened, the guiding device must be of complex construction in order to prevent the mold parts from getting stuck on the guiding device. However, depending on the shape of the product to be produced, the mold parts may shift relative to each other when the product is formed. This is due in particular to the fact that different areas of the separation surface of the mold require different forces to separate the respective mold parts. Since the casting machine should be used for a variety of products or molds, it is not possible to distribute the opening force individually on the locking cylinder. This can result in the mold parts not being able to separate relative to each other with the required parallelism, which can lead to damage or deformation of the product. In order to ensure that the mold parts open as parallel as possible during demoulding, the guiding device must be designed to be very stable and with a high degree of precision, which means that a lot of design work is required. Summary of the invention

[0005] The object of the present invention is therefore to propose a method for casting products and a casting machine which enable the casting mold to be opened as parallel as possible and at a reduced cost.

[0006] This object is achieved by a method having the features of claim 1 and a casting machine having the features of claim 10 .

[0007] According to the method for casting a product using a casting machine of the present invention, a clamping device of the casting machine is used to clamp the mold, wherein the mold is formed with at least one upper mold part and a lower mold part, wherein the cavity of the mold accommodates a melt, the melt solidifies and forms a product, wherein the clamping device includes an upper clamping plate, a lower clamping plate, at least one locking cylinder and a guiding device for guiding at least one movable clamping plate, wherein the mold is accommodated between the clamping plates, wherein the clamping plates are moved relative to each other by the locking cylinder so that the mold is closed or opened, wherein the product is separated from the mold by at least one ejector of at least one of the mold parts, wherein the casting machine generates an opening force through the ejector between the mold parts, and the opening force at least partially opens the mold.

[0008] It is therefore provided that after the cavity of the casting mold is filled with the melt, it is solidified, thereby forming the product, and then the casting mold is preferably completely opened by the ejector. Compared with the prior art, in which the casting mold is opened using a locking cylinder, that is, the lower mold part is separated from the upper mold part, the ejector generates an opening force between the lower mold part and the upper mold part. Since the ejector also exerts a force on the product to separate the product from the mold part in question, the product is separated from the mold part at the same time. Therefore, the opening of the casting mold is in principle carried out independently of the locking cylinder and the guide device with the ejector. Since the opening force acts on the product to separate the product from the mold part in question in the correct position, there is no jamming or irregular removal of the product from the mold part. The guiding device does not necessarily have to be designed to ensure the precise separation of the lower mold part and the upper mold part by the locking cylinder. Therefore, the casting machine or the guiding device can also be simpler in structure and less accurate. If the product has a shape that makes it more difficult to open the casting mold, for example if certain areas of the product are relatively more difficult to separate from one of the mold parts, it is particularly advantageous to open the casting mold by the ejector.

[0009] By means of at least one ejector, the upper mold part can be separated from the lower mold part before at least one locking cylinder can be actuated to open the casting mold. Thus, it can be provided that the two mold parts are first completely separated from one another before the casting mold with the locking cylinder is subsequently opened further. During the separation process using the ejector, the product is then completely separated from one of the mold parts, which is why the product cannot become stuck between the two mold parts due to the separation of the mold parts.

[0010] Only when at least one ejector has been fully actuated can the locking cylinder be actuated to fully open the casting mould. The ejector can perform a full stroke, thereby completely separating the product from the relevant mould part. It is also possible to guide one of the mould parts along a guide by moving the locking cylinder.

[0011] When at least one ejector is actuated, the locking cylinder can be relieved of pressure. The pressure release can be controlled, for example, by a control device of the casting machine. This can ensure that the locking cylinder does not exert any closing force on the casting mold that could conflict with the opening force of the ejector. The locking cylinder can be a hydraulic cylinder, which is actuated by a corresponding hydraulic valve so that the locking cylinder can be moved at least to a certain extent into the open position of the locking cylinder by the opening force or the ejector.

[0012] By means of at least one ejector, the upper mould part can be separated from the lower mould part and at the same time at least one clamp can be actuated to open the mould. This means that the ejector and the clamping cylinder can be operated simultaneously, so that the opening force of the ejector and the opening force of the clamping cylinder act simultaneously on both mould parts of the mould. It is thereby possible to design an ejector with a lower opening force and still avoid that the product becomes stuck between the mould parts.

[0013] At least one ejector and the locking cylinder can be actuated by a control device of the casting machine. The control device can include a device for data processing, such as a computer or a programmable logic controller, or be formed by a device for data processing. As part of the casting process, the control device can then control the ejector and the locking cylinder at least during demoulding, so that the casting mold is opened. The time course of the control can be stored separately in the control device of the casting mold.

[0014] An upper ejector of the upper mold part and a lower ejector of the lower mold part can be actuated by a control device, wherein the upper mold part can be separated from the lower mold part by means of the upper ejector and / or the lower ejector. Thus, the casting machine can have two ejectors, namely an upper ejector and a lower ejector. The mold parts can then be separated by actuating the upper ejector alone or the lower ejector alone, thereby generating an opening force. In principle, the ejectors can be operated independently of one another, so that the upper ejector and / or the lower ejector can also independently generate an opening force and separate the mold parts from one another.

[0015] In a first step the upper ejector can be actuated and in a subsequent second step the lower ejector can be actuated, or in a first step the lower ejector can be actuated and in a subsequent step the upper ejector can be actuated. It is advantageous if the upper ejector is actuated first, because then the upper mould part can be removed first without the risk of the product falling out of the upper mould part.

[0016] Alternatively, the upper and lower ejectors can be operated simultaneously. The opening force is then generated by both ejectors together. The size of each ejector can then be smaller.

[0017] A casting machine for casting products according to the invention comprises a clamping device for clamping and demolding a casting mold, wherein the casting mold has a cavity for accommodating a solidified melt forming a product and is designed with at least one upper mold part and a lower mold part, wherein the clamping device comprises an upper clamping plate, a lower clamping plate, at least one locking cylinder and a guide device for guiding at least one movable clamping plate, wherein the casting mold can be accommodated between the clamping plates, wherein the clamping plates can be moved relative to each other by means of the locking cylinders so that the casting mold can be closed and opened, wherein at least one of the mold parts has an ejector for separating the product from the casting mold, wherein the casting machine is configured to apply an opening force between the mold parts by means of the ejector, which opening force at least partially opens the casting mold. With regard to the advantageous effects of the casting machine according to the invention, reference is made to the description of the advantages of the method according to the invention.

[0018] The casting machine may comprise a control device which controls the actuation of at least one locking cylinder and an ejector, wherein the control device may be arranged to separate the upper mold part from the lower mold part by means of the ejector. Thus, the control device may initiate the opening of the casting mold and actuate the ejector, which then generates an opening force between the mold parts. It may be provided that the control device releases the locking cylinder, i.e. releases the pressure on the locking cylinder, or optionally actuates or controls the locking cylinder together with the ejector to open the casting mold. It may also be provided that the locking cylinder is actuated only after the casting mold has been opened by the ejector, in order to completely open the casting mold, i.e. to separate the upper mold part from the lower mold part, so that the mold parts can also be removed from the casting machine.

[0019] The upper mold section may have an upper ejector and the lower mold section may have a lower ejector for separating the product from the mold. If each mold section has an ejector, the ejector can be used to completely separate the product from the mold section. The ejectors can be operated sequentially or in parallel. It is also possible to operate the upper or lower ejector to open the mold, depending on the shape of the product.

[0020] The upper clamping plate can be fixed relative to the locking cylinder and the lower clamping plate can be moved by the locking cylinder, or the lower clamping plate can be fixed relative to the locking cylinder and the upper clamping plate can be moved by the locking cylinder. The locking cylinder can thus be arranged on the upper clamping plate or on the lower clamping plate. In principle, the casting machine can also have two locking cylinders, namely a locking cylinder on the upper clamping plate and a locking cylinder on the lower clamping plate. The clamping plates can then be moved independently relative to each other by the locking cylinders.

[0021] The ejector can be designed with at least one ejector cylinder, preferably two ejector cylinders. The ejector cylinder can be designed in the manner of a locking cylinder, for example as a hydraulic cylinder. Since the locking cylinder has to exert less force than the ejector cylinder, the ejector cylinder can be made relatively larger than the locking cylinder. The ejector cylinder can act on an ejector plate of the ejector, via which the opening forces are distributed to the product and the opposing mold part. Furthermore, it can be provided that two or more ejector cylinders are used, which exert a force on the ejector plate. The ejector cylinder can then be made relatively small, so that the ejector can be made more compact overall.

[0022] The ejector can be designed with at least one rod, preferably a plurality of rods, by means of which a force can be applied to the product. The rod can pass through the respective mold part and lead to a cavity formed in the mold part. By actuating the rod, for example via an ejector plate to which the rod can be fastened, the product can then be separated from the mold part in question. The product is then pressed against the opposite mold part, so that the mold opens. The rod then applies an opening force to the product. Furthermore, the rod can also preferably act on auxiliary surfaces of the product or component, such as an inlet and / or a riser. This can avoid damage to the product. Depending on the shape of the product, the rod can also act directly on the surface of the finally manufactured usable component. This can evenly transfer the opening force via the product to the opposite mold part, while separating the product from the mold part using the ejector.

[0023] The ejector can be designed with at least one opening rod, preferably a plurality of opening rods, by means of which the opening force can be applied directly to the opposing mold part. The ejector can be designed in such a way that, in addition to the rod, the opening rod is also arranged, for example, on an ejector plate and applies the opening force directly to the opposing mold part. This means that the opening force is distributed over the rod and the opening rod, so that the opening force is not transferred to the opposing mold part alone via the product. The opening rod can be used to ensure that the upper mold part is separated safely and evenly from the lower mold part in the area where the mold parts are directly adjacent to each other.

[0024] The opening rod can be designed to be longer or shorter than the rod relative to the separation surface of the mold part. The length difference can be, for example, <1 mm or >1 mm. During the opening cycle of the mold, depending on the shape of the product, the opening force can be applied to the product at the first moment before the opening force is directly applied to the opposite mold part by the opening rod. On the contrary, the opening force can be first applied to the opposite mold part and then immediately applied to the product. The stroke of the rod or opening rod of the ejector can also be designed so large that only a few millimeters, such as 1 mm to 2 mm or 2 mm to 3 mm or more, are required to open the mold by the ejector. The remaining stroke of the fully opened mold can be completed using a locking cylinder. The offset of the relevant mold part in the guide device is no longer important because the product has been completely separated from the relevant mold part due to the initial opening process by the ejector and can no longer be blocked between the mold parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Further advantageous embodiments of the casting machine result from the characterizing features of the dependent claims associated with method claim 1 .

[0026] Preferred embodiments of the present invention are explained in more detail below with reference to the accompanying drawings.

[0027] In the attached figure:

[0028] Figure 1A schematic cross-sectional view of a casting machine having a casting mold according to a first embodiment is shown;

[0029] Figure 2 A schematic cross-sectional view of a casting machine with a casting mold according to a second embodiment is shown;

[0030] Figure 3 A schematic cross-sectional view of a casting machine with a casting mold according to a third embodiment is shown;

[0031] Figure 4a , 4b A schematic diagram showing a method sequence for opening a casting mold according to a first embodiment;

[0032] Figure 5a , 5b A schematic diagram showing a method sequence for opening a casting mold according to a second embodiment;

[0033] Figure 6 shows a schematic cross-sectional view of a casting machine having a casting mold according to a fourth embodiment;

[0034] Figure 7 shows a schematic cross-sectional view of a casting machine having a casting mold according to a fifth embodiment;

[0035] Figures 8a to 8c A schematic diagram showing a method sequence for opening a casting mold according to a third embodiment;

[0036] Fig. 9 shows a schematic diagram of a casting machine having a casting mold according to a sixth embodiment;

[0037] Figures 10a to 10c A schematic diagram showing a method sequence for opening a casting mold according to a fourth embodiment;

[0038] Figures 11a to 11c A schematic diagram of a method sequence for opening a casting mold according to a fifth embodiment is shown. DETAILED DESCRIPTION

[0039] Figure 1A casting machine 10 with a casting mold 11 is shown in a simplified schematic sectional view. The casting machine 10 has a clamping device 12, which is composed of an upper clamping plate 13, a lower clamping plate 14 and two locking cylinders 15. The casting mold 11 comprises an upper mold part 16 and a lower mold part 17, wherein the upper mold part 16 is firmly connected to the upper clamping plate 13 and the lower mold part 17 is firmly connected to the lower clamping plate 14. By means of the locking cylinders 15, the upper clamping plate 13 and the upper mold part 16 can be moved relative to the lower mold part 17, so that the casting mold can be opened or closed. A cavity 18 is formed between the upper mold part 16 and the lower mold part 17, into which a melt or liquid metal can be poured. In addition, the casting machine 10 is designed with an ejector or an upper ejector 19 and a lower ejector 20. The ejectors 19, 20 are respectively composed of an ejector plate 21, a rod 22 and an ejector cylinder 23. The ejector cylinder 23 exerts a force on the ejector plate 21, on which the rod 22 is arranged or fastened firmly, so that the product (not shown here) can be ejected from the relevant mold part 16 or 17 by the rod 22. The rod 22 thus extends from the ejector plate 21 to the cavity 18 in the respective mold part 16, 17. The stroke of the rod 22 is dimensioned here so that the rod 22 can protrude into the cavity 18 in order to be able to completely separate the product from the separation surface 24 of the respective mold part 16 or 17. Furthermore, it is provided in the casting machine 10 that at least one of the ejectors 19, 20 generates an opening force between the mold parts 16, 17, which at least partially, preferably completely, opens the casting mold 11. This opening of the casting mold 11 takes place before the locking cylinder 15 is actuated to open the casting mold 11.

[0040] Figure 2 A casting machine 25 is shown with a casting mold 11, wherein Figure 1 Compared to the casting machine in FIG. 1 , the clamping device 26 is formed with a central locking cylinder 27. Here, the upper clamping plate 28 is guided by two columns 29 of the guide device 30, wherein the lower clamping plate 31 is firmly connected to the columns 29. In addition, the upper ejector 32 does not have an ejection cylinder. Here, the product (not shown) is separated from the upper mold part 16 by moving the ejector plate 21 on the upper mold part 16 against the stop 33 by means of the locking cylinder 27.

[0041] Figure 3 A casting machine 34 is shown with a casting mold 11, wherein Figure 2 Compared to the casting machine in FIG. 3 , the clamping device 35 is formed with a guide device 36 having a column 37 which is directly and firmly connected to the upper clamping plate 38. Here, the column 37 is movably guided in a yoke 39 of the clamping device 35, wherein a locking cylinder 40 is firmly mounted on the yoke 39.

[0042] Figure 4a and 4bThe sequence of the method for opening the casting mold 11 is shown. In principle, the method can also be used Figures 1 to 3 The casting machine described in is performed. Figure 4a Shows Figure 1 The casting mold 11 is shown between an upper clamping plate 13 and a lower clamping plate 14 of a casting machine 10, which is only partially shown here. The casting mold 11 is completely closed and the cavity 18 is filled with melt, which forms a product 41 in the solidified state. The casting mold 11 is now opened by using the lower ejector 20 to form the product 41 from the lower mold part 17, wherein the upper mold part 16 is separated from the lower mold part 17 and the casting mold 11 is opened. The product 41 initially remains in the upper mold part 16. The opening force is generated by lifting the product 41 by the ejector cylinder 23, the ejector plate 21 and the rod 22. The locking cylinder, which is not shown here, is not actuated or is depressurized.

[0043] and Figure 4a and 4b Compared to the method steps shown in Figure 5a and 5b The opening of the casting mold 42 is shown, wherein the upper ejector 43 and the lower ejector 44 are actuated simultaneously for opening and can thus generate an opening force for separating the upper mold part 45 from the lower mold part 46. Here, the lower ejector 44 is designed with an opening rod 47, which acts on the opening force directly on the opposite upper mold part 46. This means that when the lower ejector 44 is actuated to open the casting mold 42, the opening rod 47 directly abuts against the opposite upper mold part 46. In another embodiment not shown here, the lower ejector 44 can also be designed without an opening rod 47.

[0044] Figure 6 The embodiment of a casting machine 48 with a casting mold 49 is shown, which has only one ejector or upper ejector 50. Here, the upper ejector 50 is designed so that, in addition to the ejector cylinder 51 acting directly on the ejector plate 52, two further ejector cylinders 53 are provided. The further ejector cylinders 53 act on the columns 54, so that the casting mold 49 can be opened by a parallel and / or sequential actuation of the ejector cylinder 51 and the further ejector cylinders 53. The further ejector cylinders 53 are arranged on the upper clamping plate 55 and the columns 54 are arranged on the lower clamping plate 56.

[0045] Figure 7 A casting machine 57 is shown, wherein Figure 6 Compared to the casting machine of FIG. 5 , an additional ejector cylinder 58 is arranged on the lower clamping plate 59 .

[0046] Figures 8a to 8c Another sequence of the method process or demoulding process using the casting machine 60 and the casting mold 11 is shown. Figure 4a and Figure 4bUnlike the exemplary embodiment of , here the upper ejector 61 is designed with two ejection cylinders. Furthermore, an opening force is first applied by the upper ejector 61 to the lower mold part 17, so that the upper mold part 16 is lifted therefrom and the product 41 remains in the lower mold part 17. In a further step, the lower ejector 44 is actuated so that the product 41 is also separated from the lower mold part 17. The upper mold part 16 is completely removed beforehand, so that the product 41 can be easily removed.

[0047] Fig. 9 A casting machine 63 is shown, in which, compared to the casting machine of FIG. 8 , the upper ejector 64 is formed with an opening rod 65 . Figures 8a to 8c The method described in can also be performed using a casting machine 63.

[0048] Figures 10a to 10c Another embodiment of the casting process is shown, wherein Figure 4a and Figure 4b Compared with the casting process of the present invention, a casting machine 66 with an upper ejector 67 having two ejector cylinders 68 is used. A central column 69 for guiding the upper clamping plate 70 is also provided here.

[0049] Figures 11a to 11c The casting process using the casting machine 71 is shown, wherein Figure 4a and Figure 4b In contrast, the lower ejector 72 of the casting machine 71 is designed with two ejector cylinders 73 .

Claims

1. A method for casting a product using a casting machine (10, 25, 34, 48, 57, 60, 63, 66, 71), wherein a casting mold is clamped using a clamping device (12, 26, 35) of the casting machine, wherein the casting mold is formed with at least one upper mold part (16, 46) and a lower mold part (16, 46), wherein a cavity (18) of the casting mold receives a melt, the melt solidifies and forms a product (41), wherein the clamping device comprises an upper clamping plate (13, 28, 38, 71) and a lower clamping plate (13, 28, 38, 71) 0), a lower clamping plate (14, 41, 56), at least one locking cylinder (15, 27, 40) and a guide device (30, 36), the guide device guiding at least one movable clamping plate, wherein the mold is accommodated between the clamping plates, wherein the clamping plates are moved relative to each other by the locking cylinder so that the mold is closed or opened, wherein the product is separated from the mold by at least one ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) of at least one of the mold parts, It is characterized in that The casting machine generates an opening force via an ejector between the mold parts, which at least partially opens the casting mold.

2. The method according to claim 1, characterized in that: Before actuating at least one locking cylinder (15, 27, 40) to open the casting mold (11, 42, 49), an upper mold part (16, 46) is separated from a lower mold part (17, 45) by at least one ejector (19, 20, 32, 43, 44, 61, 64, 67, 72).

3. The method according to claim 1 or 2, characterized in that: Only when at least one ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) is fully actuated, the locking cylinder (15, 27, 40) is actuated to fully open the casting mold (11, 42, 49).

4. The method according to any one of the preceding claims, characterized in that When at least one ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) is actuated, the locking cylinder (15, 27, 40) is depressurized.

5. The method according to claim 1, characterized in that During actuation of at least one locking cylinder (15, 27, 40) to open the casting mold (11, 42, 49), an upper mold part (16, 46) is separated from a lower mold part (17, 45) by at least one ejector (19, 20, 32, 43, 44, 61, 64, 67, 72).

6. The method according to any one of the preceding claims, characterized in that At least one ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) and a locking cylinder (15, 27, 40) are actuated by a control device of a casting machine (10, 25, 34, 48, 57, 60, 63, 66, 71).

7. The method according to claim 6, characterized in that By means of a control device, an upper ejector (19, 32, 43, 50, 61, 64, 67) of an upper mould part and a lower ejector (20, 44, 72) of a lower mould part (17, 45) are actuated, wherein the upper mould part is separated from the lower mould part by means of the upper ejector and / or the lower ejector.

8. The method according to claim 7, characterized in that In a first step, an upper ejector (19, 32, 43, 50, 61, 64, 67) is actuated and in a subsequent second step, a lower ejector (20, 44, 72) is actuated, or in a first step the lower ejector is actuated and in a subsequent second step the upper ejector is actuated.

9. The method according to claim 7, characterized in that: The upper ejectors (19, 32, 43, 50, 61, 64, 67) and the lower ejectors (20, 44, 72) are actuated simultaneously.

10. A casting machine (10, 25, 34, 48, 57, 60, 63, 66, 71) for casting products, comprising a clamping device (12, 26, 35) for clamping and demoulding a casting mold (11, 42, 49), wherein the casting mold has a cavity (18) for receiving a solidified melt forming a product (41), and is designed with at least one upper mold part (16, 46) and a lower mold part (17, 45), wherein the clamping device comprises an upper clamping plate (13, 28, 38 , 70), a lower clamping plate (14, 41, 56), at least one locking cylinder (15, 27, 40) and a guide device (30, 36) for guiding at least one movable clamping plate, wherein the mold can be accommodated between the clamping plates, wherein the clamping plates can be moved relative to each other by means of the locking cylinder so that the mold can be closed and opened, wherein at least one of the mold parts has an ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) for separating the product from the mold, It is characterized in that The casting machine is arranged to generate an opening force between the mould parts by means of an ejector, the opening force at least partially opening the casting mould.

11. The casting machine according to claim 10, characterized in that The casting machine (10, 25, 34, 48, 57, 60, 63, 66, 71) comprises a control device, which controls the actuation of at least one locking cylinder (15, 27, 40) and an ejector (19, 20, 32, 43, 44, 61, 64, 67, 72), wherein the control device is arranged to separate the upper mold part (16, 46) from the lower mold part (17, 45) by the ejector.

12. The casting machine according to claim 10 or 11, characterized in that The upper mold part (16, 46) has an upper ejector (19, 32, 43, 50, 61, 64, 67) and the lower mold part (17, 45) has a lower ejector (20, 44, 72) for separating the product (41) from the casting mold (11, 42, 49).

13. A casting machine according to any one of claims 10 to 12, characterized in that The upper clamping plate (13, 28, 38, 70) is fixed relative to the locking cylinder (15, 27, 40) and the lower clamping plate (14, 41, 56) is movable via the locking cylinder, or the lower clamping plate is fixed relative to the locking cylinder and the upper clamping plate is movable via the locking cylinder.

14. A casting machine according to any one of claims 10 to 13, characterized in that The ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) has at least one ejector cylinder (23, 51, 53, 58, 62, 68, 73), preferably two ejector cylinders.

15. The casting machine according to any one of claims 10 to 14, characterized in that The ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) has at least one rod (22), preferably a plurality of rods, via which a force can be applied to the product (41).

16. The casting machine according to claim 15, characterized in that The ejector (19, 20, 32, 43, 44, 61, 64, 67, 72) has at least one opening rod (47, 65), preferably a plurality of opening rods, via which an opening force can be applied directly to the opposing mold part (16, 17, 45, 46).

17. The casting machine according to claim 16, characterized in that The opening rod (47, 65) is designed to be longer or shorter than the rod (22) relative to the separation surface (24) of the mold parts (16, 17, 45, 46).

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