Hydraulic device for a die casting machine

Abstract

A device for supplying to and/or controlling hydraulically operated components of a die casting machine, comprising a base block with a main inlet opening and a main outlet opening for hydraulic medium, and also at least two different module components, which are selected from the group consisting of core-pulling modules, core-pulling-relief modules, booster modules, secondary movement modules, and vacuum modules, and which are fluidically connected to the base block. The present invention relates to a die casting machine with such a device and to a method for supplying to and/or controlling hydraulically operated components of a die casting machine.

Claims

1. A device for supplying to and/or controlling hydraulically operated components of a die casting machine, comprising: a base block having a main inlet opening and a main outlet opening that transports a hydraulic medium the main inlet opening and the main outlet opening disposed at a side of the base block, and a plurality of base block connection openings and the bottom area disposed at top and bottom sides of the base block, the plurality of base block connection openings discharging and introducing the hydraulic medium, wherein the main inlet opening and main outlet opening are connected to the top and bottom side base block connection openings by fluidic lines in the base block; at least two different module components selected from the group consisting of core-pulling modules, core-pulling-relief modules, booster modules, secondary movement modules, and vacuum modules, each of the at least two different module components having module connection openings disposed at top and bottom sides thereof, the module connection openings discharging and introducing the hydraulic medium, and interior fluidic lines connecting the top and bottom side module connection openings, wherein at least one of the two at least two different module components is arranged at the top side or the bottom side of the base block such that the module connection openings thereof form a fluidic connection with the corresponding base block connection openings, and wherein the at least two different module components have fluidic connections to the hydraulically operated components of the die casting machine; and, end plates that close unconnected inlet openings and outlet openings of the base block and/or of a connected module component.

2. The device according to claim 1, wherein at least one further module component is arranged at a top side or a bottom side of at least one of the at least two different module components, the at least one further module component is selected from the group consisting of core-pulling modules, core-pulling-relief modules, booster modules, secondary movement modules, and vacuum modules, and the at least one further module component has, at top and bottom sides thereof, further module connection openings discharging and introducing the hydraulic medium, and interior fluidic lines connecting the top and bottom side further module connection openings, wherein the at least one further module component is arranged at a top side or a bottom side of an adjacent module component such that the corresponding further module connection openings of the at least one further module component form a fluidic connection with corresponding adjacent module connection openings of the adjacent module component, and wherein the at least one further module component has fluidic connections for connecting to the hydraulically operated components of the die casting machine.

3. The device according to claim 1, wherein the base block and the at least two different module components are connected by fastening means comprising one or more threaded rods.

4. The device according to claim 1, wherein a distribution unit having at least one fluidic connection is connects to the hydraulically operated components of the die casting machine.

5. The device according to claim 1, wherein the base block has a fluidic connection to the hydraulically operated components of the die casting machine.

6. The device according to claim 1, wherein the base block, and at least one of the at least two module components include a valve that modifies flow of the hydraulic medium.

7. The device according to claim 6, wherein the base block or the at least one of the at least two module components include an operating element, and the base block connection openings, the module connection openings, and the operating element are arranged on a same side opposite the main inlet opening and the main outlet opening of the base block.

8. The die casting machine according to claim 1, wherein at least one or more of the base block, the at least two different module components, the end plates, and any additional module units or operating elements, are connected by fastening means.

9. The die casting machine according to claim 8, wherein the die casting machine furthermore comprises at least one receiving frame that receives at least one energy module, the at least one receiving frame comprising: fastening means for fastening the at least one receiving frame on the die casting machine, at least one row that receives the at least one energy module, wherein the at least one row comprises two profile pieces which are connected to one another by a respective connecting piece or energy module thereby forming a quadrangular interior space, wherein the at least one row has means for arranging the at least one energy module in the interior space thereof, wherein the fastening means that fastens the at least one receiving frame on the die casting machine is arranged on a row forming an outer face of the at least one receiving frame, and the at least one receiving frame is fastened to the die casting machine via the fastening means, wherein the base block includes a main inlet opening and a main outlet opening for the hydraulic medium arranged on a rear side of the base block, and the plurality of base block connection openings are disposed in the top side and the bottom side of the base block discharge and introduce the hydraulic medium, wherein the main inlet opening and main outlet opening are connected to the plurality of base block connection openings by fluidic lines in the base block, the at least two different module components selected from the group consisting of core-pulling modules, core-pulling-relief modules, booster modules, secondary movement modules, and vacuum modules, each have the module connection openings in a top side and a bottom side thereof that discharge and introduce the hydraulic medium, and fluidic lines in their respective interiors that connect the module connection openings, wherein at least one of the at least two different module components is arranged in the top side or the bottom side of the base block such that the corresponding module connection openings of the at least one module component forms a fluidic connection with the corresponding base block connection openings of the base block, wherein the at least one of the at least two different module components have connections that connect to the hydraulically operated components of the die casting machine, and, the end plates close unconnected inlet openings and outlet openings of the base block and/or of the at least one module component, wherein the device is arranged in the at least one row of the receiving frame that is disposed adjacent to the die casting machine.

10. The die casting machine according to claim 9, wherein the device is arranged in the at least one row of the receiving frame adjacent to the die casting machine such that the base block of the device connects the profile pieces of the at least one row at a bottom thereof.

11. The die casting machine according to claim 9, wherein 1 to 5 core-pulling modules are arranged above the base block, 1 to 5 booster modules are arranged above the core-pulling modules, and 1 to 5 secondary movement modules are arranged below the base block.

12. The die casting machine according to claim 9, wherein the die casting machine has a movable platen which has, on both sides, the receiving frame with the device arranged in the at least one row of the receiving frame adjacent to the die casting machine.

13. The die casting machine according to claim 12, wherein the device comprises, on one side of the movable platen, the base block having connections for connecting ejector cylinders.

14. A method for supplying to and/or controlling hydraulically operated components of a die casting machine comprising the steps of: providing the device according to claim 1 on the die casting machine, introducing a hydraulic medium into the base block of the device, transferring the hydraulic medium through at least one of the base block connection openings or through at least one of the at least two different module component openings connection openings of the at least two module components.

15. The method according to claim 14, wherein the transferring of the hydraulic medium is modified by at least one unit.

Description

(1) The present invention is explained in more detail below with reference to non-restrictive drawings. The following is shown:

(2) FIG. 1 a front view of a die casting machine from the prior art

(3) FIG. 2 a schematic view of a hydraulic tower according to the invention

(4) FIG. 3 a schematic view of an embodiment of a hydraulic tower according to the invention with threaded rods for fastening the individual module components

(5) FIG. 4A a schematic view of an embodiment of a base block of the hydraulic tower according to the invention

(6) FIG. 4B a schematic view of another embodiment of a base block of the hydraulic tower according to the invention

(7) FIG. 5A a schematic view of an embodiment of a core-pulling module of the hydraulic tower according to the invention

(8) FIG. 5B a schematic view of another embodiment of a core-pulling module of the hydraulic tower according to the invention

(9) FIG. 6 a schematic view of an embodiment of a booster module of the hydraulic tower according to the invention

(10) FIG. 7 a schematic view of an embodiment of a secondary movement module of the hydraulic tower according to the invention

(11) In the drawings, the same reference signs designate the same components.

(12) FIG. 1 schematically shows a front view of a die casting machine from the prior art. The die casting machine 1 comprises a (here, by way of example, fixed) platen 3 and openings 2 in the platen 3 for guide columns (not shown) for moving a movable platen (not shown). Modules 10 for supplying the die casting machine with electrical energy, modules 6 for operating core pullers, a module 7 for cooling, and a module 8 for operating a booster are arranged on the sides of the platen 2. The various modules are distributed over the entire die casting machine. The individual hydraulic modules must be connected in a complex manner with pipes and hoses to the hydraulic lines arranged in the machine frame.

(13) FIG. 2 shows a schematic view of a hydraulic tower 4 according to the invention. This hydraulic tower 4 comprises a base block 5 with a main inlet opening 5a (not shown) and a main outlet opening 5b. According to the embodiment shown in FIG. 2, the base block 5 has a valve 5g with the aid of which hydraulic medium can be delivered in a controlled manner to additional connections 5h (not shown), for example for controlling an ejector cylinder.

(14) A block of (in this embodiment) 5 core-pulling modules 6 is arranged in the top area of the base block 5. The core-pulling modules 6 each have connections 6d, 6e on their front side for connecting to a core-pulling cylinder and a valve 6i on their rear side, with the aid of which hydraulic medium can be delivered in a controlled manner to the connections 6d, 6e. The valves 6i can be regulated via pressure regulators 6h.

(15) The core-pulling modules 6 are fluidically connected to the base block 5 and to one another via connection openings (not shown in FIG. 2) so that hydraulic medium can circulate from the base block 5 through all core-pulling modules 6 and be delivered via the connections 6d, 6e.

(16) A core-relief module 13 is arranged on the uppermost core-pulling module 6. As described above, the core-relief module 13 serves to relieve pressure in the hydraulic lines in the hydraulic tower 4 using a relief valve (not shown in FIG. 2).

(17) A block of (in FIG. 2) 4 booster modules 8 is arranged in the top area of the core-relief module 13. The booster modules 8 each have connections 8d, 8e on their front side for connecting to a booster cylinder and at least one valve 8i on their rear side, with the aid of which hydraulic medium can be delivered in a controlled manner to the connections 8d, 8e. The valves 8i can be regulated via pressure regulators 8h. Each booster module can additionally have a respective pressure-reducing valve (not shown in FIG. 2) and throttle valve with associated regulators.

(18) The booster modules 8 are fluidically connected to the base block 5, the core-pulling modules 6, the core-relief module 13, and to one another via connection openings (not shown in FIG. 2) so that hydraulic medium can circulate from the base block 5 through all booster modules 8 and be delivered via the connections 8d, 8e.

(19) An end plate 12 for closing the lines passing through the hydraulic tower 4 is fastened to the top area of the uppermost booster module 8.

(20) A block of (in FIG. 2) 3 secondary movement modules 9 is arranged in the bottom area of the base block 5. The booster modules 9 each have connections 9c, 9d on their front side for connecting to a secondary movement cylinder and at least one valve block 9e on their rear side, with the aid of which hydraulic medium can be delivered in a controlled manner to the connections 9c, 9d.

(21) An end plate 12 for closing the lines passing through the hydraulic tower 4 is fastened to the bottom area of the lowest secondary movement module 9.

(22) FIG. 3 shows a schematic view of an embodiment of a hydraulic tower according to the invention with threaded rods for fastening the individual module components. Threaded rods 11a, 11b of different lengths are guided through bore holes in the module components 5, 6, 8, 9, 13. One end 11d of the threaded rods 11a, 11b is fastened, for example screwed, to an end bore hole of a module component. The other end 11c of the threaded rods 11a, 11b is fixed by means of a groove. In the manner shown in this embodiment, a firm connection of the module components is ensured. The hydraulic tower 4 is very stable and withstands the forces occurring during operation of a die casting machine.

(23) FIG. 4A shows a schematic view of an embodiment of a base block 5 of the hydraulic tower 4 according to the invention.

(24) The base block has a main inlet opening 5a which is fluidically connected via lines 5a1, 5a2 (for example, pipes in a hollow body or bore holes in a solid body) to a connection opening 5c in the top area of the base block 5 and a connection opening 5e in the bottom area of the base block 5. Hydraulic medium introduced into the base block 5 through the main inlet opening 5a can be distributed to module components (not shown here) through the connection openings 5c, 5e, which module components are arranged in the top area or bottom area of the base block 5.

(25) The base block 5 furthermore has a main outlet opening 5ba which is fluidically connected via lines 5b1, 5b2 to a connection opening 5d in the top area of the base block 5 and a connection opening 5f in the bottom area of the base block 5. Hydraulic medium can be conducted from the base block 5 into a tank (not shown) through the main outlet opening 5b. The hydraulic medium to be conducted out can be introduced into the base block 5 through the connection openings 5d, 5f of module components (not shown here), which are arranged in the top area or bottom area of the base block 5.

(26) FIG. 4B shows a schematic view of another embodiment of a base block 5 of the hydraulic tower 4 according to the invention. This base block 5 differs from the embodiment shown in FIG. 4A in that connections 5h for connecting the base block 5 to a machine component, preferably an ejector cylinder, and a valve 5g for regulating the hydraulic flow to the connections 5h are arranged on the base block 5. Secondary lines lead from the lines 5a2, 5b2 (not shown in FIG. 4B) into the valve 5g and from there to the connections 5h, as described in detail above.

(27) FIG. 5A shows a schematic view of an embodiment of a core-pulling module 6 of the hydraulic tower 5 according to the invention.

(28) In its interior, the core-pulling module 6 has lines (not shown) which are fluidically connected to connection openings 6a, 6b in the top area of the core-pulling module 6 and connection openings (not shown) in the bottom area of the core-pulling module 6. Secondary lines lead from the lines (not shown) into the valve 6i or via the pressure-reducing valve 6g into the valve 6g and from there to the connections 6d, 6e, as described in detail above. The connections 6d, 6e can be connected to a core-pulling cylinder.

(29) The pressure-reducing valve 6g can be regulated using a pressure regulator 6h. In addition, a connection 6f for pressure measurement is provided on the front side of the core-pulling module 6, to which connection a conventional pressure measuring instrument, such as a manometer, can be connected.

(30) In the embodiment according to FIG. 5a, a bore hole 6c for receiving an eye screw) (not shown) is provided in the top area of the core-pulling module 6. The core-pulling module 6 can be lifted and installed or removed in a simple manner using such an eye screw.

(31) In the embodiment according to FIG. 5a, additional secondary connections 6j, 6k are provided on one side face. These secondary connections are hydraulically connected analogously to the connections 6d, 6e and serve for connecting to an optional hydraulic distributor (not shown).

(32) FIG. 5B shows a schematic view of another embodiment of a core-pulling module 6 of the hydraulic tower 5 according to the invention. This core-pulling module 6 differs from the embodiment shown in FIG. 4A in that a distribution element 6l, 6l′ is arranged on each of the connections 6d and 6e in order to increase (in this case double) the number of available connections.

(33) FIG. 6 is a schematic view of an embodiment of a booster module 8 of the hydraulic tower 5 according to the invention.

(34) In its interior, the booster module 8 has lines (not shown) which are fluidically connected to connection openings 8a, 8b in the top area of the booster module 8 and connection openings (not shown) in the bottom area of the booster module 8. Secondary lines lead from the lines (not shown) into the valve 8i or via the pressure-reducing valve 8g and the throttle valve 8l into the valve 8g and from there to the connections 8d, 8e, as described in detail above. The connections 8d, 8e can be connected to a booster cylinder.

(35) The pressure-reducing valve 8g can be regulated using a pressure regulator 8h. The throttle valve 8l can be regulated using a regulator 8m. In addition, a connection 8f for pressure measurement is provided on the front side of the booster module 8, to which connection a conventional pressure measuring instrument, such as a manometer, can be connected.

(36) In the embodiment according to FIG. 6, a bore hole 8c for receiving an eye screw) (not shown) is provided in the top area of the booster module 8. The booster module 8 can be lifted and installed or removed in a simple manner using such an eye screw.

(37) In the embodiment according to FIG. 6, additional secondary connections 8j, 8k are provided on one side face. These secondary connections are hydraulically connected analogously to the connections 8d, 8e and serve for connecting to an optional hydraulic distributor (not shown).

(38) FIG. 7 is a schematic view of an embodiment of a secondary movement module 9 of the hydraulic tower according to the invention.

(39) In its interior, the secondary movement module 9 has lines (not shown) which are fluidically connected to connection openings 9a, 9b in the top area of the secondary movement module 9 and connection openings (not shown) in the bottom area of the secondary movement module 9. Secondary lines lead from the lines (not shown) into the valve block 9e and from there to the connections 9c, 9d, as described in detail above. The connections 9c, 9d can be connected to a secondary movement cylinder.