JP2003039150A - Low pressure die-casting equipment, working method therefor, and mold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide low pressure die-casting equipment and a method therefor capable of executing rapid transportation among working stations with a mechanically simple construction, and low in power consumption. SOLUTION: The low pressure die-casting equipment contains at least one casting station 19, at least one work station 20, 21, 22, 23, 24, and at least one treatment unit 1, 10, 10' for transporting a mold 3 having two mold-halves 3a, 3b. In the first example, the first and the second treatment units are provided, wherein the first and second treatment units 10, 10' are provided, the first treatment unit is suited for transporting a closed mold 3, and the second treatment unit is suited for transporting an opened mold. In the working method for the low pressure die-casting equipment, the low pressure die-casting equipment in this type is made to work. In the second example, the casting station has a clamp unit to hold the closed mold during the casting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low pressure die casting apparatus having a casting station and a working station, an operating method for performing die casting at a low pressure, and a die for the same.

[0002]

BACKGROUND OF THE INVENTION Low-pressure die-casting devices are known, for example, from Swiss Patent 690,356 and European Patent 0824983. In this known device, the mold has two mold halves which are securely fixed to one another in a processing unit known as a manipulator. This unit is connected with a manipulator to a conveyor device that moves the mold from one work station to the next. The manipulator includes a mold opening / closing device that allows the mold to perform work steps performed at each work station, such as core insertion, casting, casting removal, cleaning, and spraying of a cleaning film. It is opened and closed according to the steps such as.

In this case, the mold is always conveyed in a closed state. Due to the inherent weight of the mold, the mold opening and closing device
It requires strong guide parts for the mold halves and corresponding drive elements. Furthermore, the manipulator must exert a great deal of force at the casting station to hold the two mold halves together so that the casting flash does not occur against the pressure of the molten metal.

Therefore, the manipulators have an inherently large weight in order to apply the necessary mold closing forces and to move the mold halves relative to each other. This mass has to be transferred by the conveyor system, which requires considerable expenditure in energy and time. The manipulator is
It has a mechanically complex structure and is therefore expensive to manufacture and maintain. Also, in each work station, opening and closing of the mold requires a certain amount of time, resulting in an increase in the duration of the entire operation cycle, and the mold is below the minimum temperature under these circumstances. Cooled down and requires an additional heating step.

In addition to the high inertia of this system caused by the large mass, the casting die, or mold, suffers from the lack of flexibility in conventional equipment. Such a mold must be removed from the manipulator,
Expenses for assembly are incurred.

[0006]

Therefore, the present invention is
The purpose of the present invention is to provide a casting device for low-pressure die-casting, which eliminates the above-mentioned drawbacks. A manipulator has a mechanically simple structure and enables quick transportation between individual work stations, and wastes energy. A low pressure die casting apparatus and method for operating the same.

[0007]

In order to achieve the above object, the present invention has the constitution described in each claim. The low pressure die casting apparatus of the present invention has at least one casting station and at least one working station,
Preferably, it comprises a core insertion station, a removal station, a spraying station and also a dipping and / or spraying station. In the first embodiment, at least one first and second processing unit is provided. The first processing unit is suitable for carrying a closed mold and the second processing unit is suitable for carrying an open mold. Each processing unit is adjusted to be fully satisfactory.

The processing unit of the first structure is optimized for the closing function and the transfer of closed molds. The mold is preferably received in precise sealing from at least two sides by a receiving shaft that surrounds the closed mold. The mold halves are pressed together and the mold is fixed in the shaft by a closing mechanism. This closure mechanism
For example, it includes at least one closing piston.
The closing piston alone is sufficient to clamp the mold in the receiving shaft and with a small movement, thus reducing the mechanical outlay required. Further, there is no need for means for opening the mold using the first processing unit. During casting, the mold remains in the first processing unit.

The processing unit of the second structure is optimized for conveying open molds. Since the mold moves in an open state between the work stations that require processing in the open state, the time can be reduced. The second processing unit has two holding elements, each of these holding elements being used to hold one of the mold halves, the held mold halves being at a predetermined distance from each other. Are spaced apart and are preferably arranged parallel to each other. According to the steps in the method of the invention, the open mold is transferred to a work station, eg a core insertion station, for further processing. Also, in the corresponding work station, for example, the graphite treatment of the mold (graphitiz
ing), it remains attached to the processing unit.

Due to the functionally optimized construction, the processing unit can drive the parts and the hard and heavy guide elements without movement. The required opening / closing operation is
Directly at the work station by means of a switchgear.

In a second embodiment of the invention, the casting station is provided with a clamping unit for receiving a mold having a connecting element, which holding element holds both mold halves together during casting. Further, a grip used to transport the mold between the work station and the casting station or a further work station, the gripper having at least one processing unit for receiving the mold by engaging the coupling element. / Transfer device, the mold is transferred or picked up by the clamping unit at the casting station. Therefore, the mold can be moved between or within individual stations without being fixed and clamped in the manipulator. According to the first embodiment of the invention, it is possible to use a processing unit according to the first or second structure.

The required mold closing force is applied at the casting station by means of a fixed clamping unit, which clamps the mold in close contact. This clamping unit can be made from a single piece, since the mold has a generally uniform outer diameter dimension, for example having at least a certain thickness, regardless of the shape of the casting. , The mold is inserted in this. If necessary, it will be clamped with a relatively small force. The clamp unit does not have to move. The mold is inserted into the clamping unit and again removed from the clamping unit by the processing unit. In fact, during the transfer operation, the force that must be applied to hold it with the mold halves does not have to be high. Therefore, the processing unit can be, for example, a very lightweight gripping / conveying device, and only need to be lightly pressed against one another to hold the mold halves closed. As the processing unit, for example, a robot can be used. Overall, the processing unit does not have to be as rugged as it has been with conventional manipulators, as it has a lighter weight to move. Therefore, this processing unit is simpler and less expensive in design.

Since the mold is not connected to a common processing unit used at all stations, the device according to the invention can be completely modular.
Due to the high flexibility of the device of the present invention, additional work stations can be installed or modified if desired.

It is also possible to combine the two embodiments of the present invention, for example to transfer the mold to the open or closed position of the mold using the processing units of the first and second structures and to cast it. It can be transferred to a fixed clamping unit located at the station. Thus, the processing unit of the first structure can be made lighter.

Molds having a standard external shape are preferably used in the device according to the invention. This type of mold includes, for example, a base body including an actual casting die,
A connecting element is connected to it, which is connected, for example, in the form of a transverse flange or a plate. These connecting elements can be arranged such that the spatial dimensions of the mold are in at least one spatial direction, regardless of the dimensions of the base body. This allows multiple different casting dies to be used and they can be replaced without incurring design expense.

Holding element or holding device of the processing unit,
The clamp unit and other mold opening and closing devices are provided with a uniform gripper device to allow the mold to be manipulated in a desired manner. For example, during casting, the mold is pressed, separated from it, and further rotated for cooling and the like. Therefore, the receiving shaft of the first processing unit is
Preferably, it has a depth that matches the distance between the connecting devices of the mold halves in the closed position. The processing units can in each case be connected to one drive and move independently of one another. The processing unit is preferably movable along a straight guide rail and can be adjusted by the height of the unit.

In an advantageous refinement of the invention, the mold is
It is coded to indicate its type, for example the shape of the casting. It can be read at the individual stations by means of a suitable reading unit and can be communicated via corresponding signals to a system control unit provided for central or local control. The system control unit provides the work station with the data needed to control the work process. For example, a predetermined pressure curve, i.e. a pressure profile related to the time to match the shape of the casting, is set at the casting station. As an example, cooling is performed for a predetermined time at a graphite processing station in relation to a casting die. As an example, a cleaning nozzle moves over an open mold associated with a casting die at a cleaning station.
The coding is preferably mechanical, for example the arrangement of pins, or otherwise performed, for example by a bar code or a data carrier. The strong mechanical coding can be reliably read even when used under the unclean operating conditions that occur during casting.

Coding is preferred for each work station assigned to a local control unit that controls local work steps. The relevant process data is input to the central control unit and is required by the local control unit.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. An example of a mold according to the invention is shown in FIGS.
And shown in Figures 1c-1e. The mold 3 has two mold halves 3a, 3b, which are mirror-symmetrical to each other and each have a transverse connecting element 4. These connecting elements are in the form of plates 5 which are connected to the base body 9, which via the web member 34 forms the actual casting die. Mold 3
Are adapted to engage the coupling element 4 and be received and fixed in the first or second processing unit 1, 10. In this case, the connecting element 4 is connected to the mold by means of the pin 15 and / or the cutout 8.

An opening / closing device for the mold, an ejector device or other holding device is arranged at each work station and can engage a slot 16 in the connecting element 4, for example in the center of the plate 5. In the closed state, the connecting points of the connecting elements 4 of the processing units 1, 10 or other holding devices are in the same position relative to each other, irrespective of the shape and size of the base body 9. The base body 9 can also be elongated or of varying depth, for example the base body 9 ′ of FIGS. 1a, 1b. in this case,
The web member will be lengthened.

1c-1e show a slightly modified mold 3. The coding device 39 is in this case a suitable reading device arranged at one end of the plate 5.
The placement of the short pins is read, for example by mechanical scanning. The plate 5 includes an ejector cylinder 48 (see FIG.
An opening 41 is provided to allow (see reference) to pass therethrough. The cylinder moves the ejector plate 42 to remove the casting from its die.

FIGS. 1a, b and 2a, b show the first of the invention.
1 illustrates two types of processing units 1, 10 used in a low pressure die cast apparatus according to an embodiment. The first processing unit 1 is suitable for conveying a closed mold 3 and comprises a frame 2 with a U-shaped cross section, which frame forms a receiving shaft 35 open on three sides. . The side walls 2a, 2b of the frame 2 constitute a closing member 6, which in this case comprises four hydraulically driven closing cylinders 7.

As shown in FIG. 4, the processing units 1, 10
Are respectively connected to a driving device 17, which allows the processing unit to move horizontally and vertically along the guide rails 18. Due to the vertical movement, the frame 2 is placed on the closed mold 3 in a fixed position. As a result, the mold is received with a slight play in the receiving shaft 35.

The mold is fixed by a closing cylinder 7,
The connecting element 4 is engaged in the cutout 8. The movement amount of the closing cylinder 7 is necessary to fix the mold,
The amount of movement is a few mm (approximately 10 to 20 mm), which is very small. The first processing unit 1 does not include any further movable members, so that it can be made with fewer structural elements. The closing device 6 holds the closed mold 3 in the first processing unit 1 and holds it together during the casting operation.

The second processing unit 10 is shown in FIGS. 3a, b and is suitable for transporting an open mold having mold halves 3a, 3b. The mold halves are spaced and parallel to each other. The second processing unit also constitutes a U-shaped frame 11, the side walls 11a, 11b of the frame having a greater distance than the frame 2 of the first processing unit. Each side wall 11a, 11b is
A holding device 12 is included, in which case the holding device is a connecting element 4.
A retaining element 13 which interacts with a pin 15 of the and a retaining cylinder 14 which interacts with the cutout 8. The mold halves 3 a and 3 b are held in the second processing unit 10 by the holding device 12. By disposing the second processing unit 10 from above the opened mold 3, the mold 3
Is accepted. The mold is placed vertically and the holding cylinder 14 is moved. It is possible to use other gripper mechanisms as well as closed cylinders. In this case, like the first processing unit 1, there are no other moving parts other than the closing cylinder.

FIG. 4 illustrates the preferred construction of a linear array low pressure die cast apparatus according to the present invention. A casting station 19 and further working stations, here a core insertion station 20, a removal station 21, a mold change station 22, a cleaning station 23 and a graphitization station 24 are arranged along a straight line with a predetermined spacing. . There is a waiting place 22 ′ between the casting station 19 and the core inserting station 20, and this area on the front side of the mold changing station 22 can also be used as a waiting place when the mold is not changed.

The casting station 19 is shown in FIG. 4 on the left side as a side view rotated 90 °. This casting apparatus includes a first processing unit 1 and a second processing unit 10,
10 ′, here each processing unit 1, 10, 1
0'is connected to the drive unit 17, which can move each processing unit along the linear guide rail 18 and also adjust the height of the processing unit.

The processing units 1, 10, 10 'can be displaced independently of one another, their movements being controlled by the control device.
(Not shown). Since the mold is not fixedly connected to a particular processing unit, it is possible to use three processing units in this linear arrangement. This increases the cycle time compared to known devices.

An example of mold movement is shown in FIGS. 11a and 11b. According to this example, the first processing unit receives the closed mold at the core insertion station and moves this mold to the casting station 19 and then to the unloading station 21. The closed mold is transferred to the unloading station 21, where the mold is opened. The casting is then removed. During this time, the first processing unit is returned to the core insertion station to pick up a new mold. The empty mold is picked up by the second processing unit 10 at the unloading station, conveyed to the cleaning station 23 in the open state, and further transferred to the next station. After this transfer, the second
The processing unit 10 moves to the waiting place 22 '. Finally, the cleaned mold is picked up by the further second processing unit 10 ′ from the cleaning station and moved to the graphite processing station 24. Here, the mold remains in the further second processing unit 10 ′ during the graphite processing. Then, the mold moves to the core insertion station 20, and the cycle is repeated again. The movements of the two different processing units are carried out during this period and can be seen in FIG. 11a.

Overall, it is possible to process three molds in synchronism and to achieve cycle times of the device in the range of 40-60 seconds. Each mold returns to the casting station 19 after three cycle times and therefore does not require an additional heating step to hold the mold at the desired temperature. The mold temperature is measured and kept constant by the wash or spray time. Figure 5
~ In Fig. 10, individual work stations are illustrated. Only the differences between these stations and the structure of known stations will be described below. The structure of the casting station shown in FIG. 5 includes an induction furnace similar to the conventional one. The mold is placed by the first processing unit on the lifter 25 provided in this furnace, the first processing unit
In addition, a closing force required to close the mold halves 3a and 3b is applied.

The core insertion station 20 shown in FIGS. 6a and 6b.
Includes a carriage 27 movable in a direction orthogonal to the guide rail 18 (FIG. 4), and a mold opening / closing device 26 is connected to the carriage so that the mold can be swiveled around a horizontal axis. In the lying position (left part of FIG. 6a), the mold opening and closing device can accept an open mold. The mold is held by the opening and closing device 26 at the connecting element 4. This is shown in FIGS. 6c and d, in which the mold 3 is mounted from above on a holding cylinder 14 ′ which engages the lower cutout 8 of the plate 5. The closing cylinder 7 ′ then moves into the lateral cutout 8 provided in the plate 5, so that the mold is clamped.
When the opening / closing device 26 turns 90 ° (on the right side in FIG. 6a), the mold halves 3a and 3b move into the horizontal position, and the sand core is moved.
(sand core) can be inserted manually. Mold 3
Is finally closed and the mold opening and closing device pivots back to the lateral position. In this state, the first processing unit 1 can take out the closed mold 3. FIG. 6b shows the core insertion station shown in FIG. 4, while FIG. 6a shows a view rotated 90 ° from this state. The unloading station 21 in FIG. 7 receives the closed mold from the first processing station 1 and opens and closes the mold inside the opening / closing device 2
Open by 6 '. As a result, the casting 28 is ejected and removed using the ejector device. The mold is picked up in the mold open state.

The open mold is transferred by the second processing unit 10 to the cleaning station shown in FIG. 8, which has suitable receiving means in the housing 30 for receiving the open mold. The mold is air sprayed or cleaned in a programmed manner. The mold is then picked up by a further second processing unit 10 ', the graphite processing station 2 shown in FIG.
Move to 4. Here, the mold is lowered together with the processing unit 10 ′, and the wash liquid is sprayed by the spray unit 31 to raise the mold again.

Mold changing station 22 shown in FIG.
Has a carriage 32 for carrying the molds for replacement and a carriage 33 for carrying the newly preheated molds. These carriages can move in a direction orthogonal to the direction of the guide rail 18 (FIG. 4). After the mold to be replaced is placed, the carriage 32
Are moved to the side, so that the carriage 33 moves to the original position held by the carriage 32.

FIG. 12 is a plan view of a low pressure die casting apparatus according to a second embodiment of the present invention, including a casting station 19, a removal / cleaning station 21/23, a mold changing station 22, and a core inserting station 20. And a cleaning station, and a gripping / transporting system for moving the mold. This gripping / transporting system includes three processing units, and these processing units move along guide rails arranged in a triangular shape. The mold 3 is shown in Figures 1a-1e and the individual stations are shown in Figures 13-15.

13a and 13b are a side view and a plan view, respectively, of a known casting station 19 with a clamping unit 43. The clamping unit 43 is rectangular and comprises a continuous frame 43a, which has a receiving element 44 therein for receiving the connecting element 4 of the mold 3. The mold 3 is guided to the clamp unit 43 from above. Furthermore, a clamping element for clamping the mold 3 on the clamping unit 43 after the mold has been introduced is provided for holding the mold 3. Rotating column 4 with the clamp unit oriented vertically
It is fixed at 5 and can be moved shallowly around the vertical axis, and can be displaced vertically.

14 to 17 are views of the removal / washing station 21/23 as viewed from the side, and FIG. 14 is a view as viewed from the side orthogonal to the transport direction. Figure 15
FIG. 16 is a view seen from above, and FIG. 16 is a view seen from the transport direction. The mold opening / closing device 26 can approach the mold 3 from above. The mold opening and closing device 26 has a holding element 13 which engages the transverse plate 5 of the connecting element 4 of the mold 3. The distance between the holding elements 13 in the conveying direction is variable in this case, so that the two mold halves 3a, 3b can be separated for removal of the casting and for cleaning (molds). Half 3b 'is shown in dashed lines). Receiving unit 2
The opening / closing operation of 6 is triggered by the cylinder 46. A guide rod 27 is used to guide the holding element 13 horizontally. The ejector cylinder 48 is used to move the ejector plate 42, which is illustrated in detail in Figures 1c and d, and is used to remove the finished casting 28 from the die. as a result,
The casting is picked up by the take-out unit 51. After being removed, the cleaning nozzle 29 moves along the open mold halves 3a, 3b. The movement of the nozzle 29 is controlled according to the casting die. This station also has a spraying unit 49.

17 and 18 show a side view and a plan view of the cooling and cleaning station, which has a core insertion station. The mold 3 is the opening / closing device 2
It is located within 6 '. The holding element 13 of this device is designed similar in construction to the holding element of the casting station 19 or the washing station. Reengage the connecting elements 4 of the mold halves 3a, 3b. The holding element 13 has moved to open the mold 3 (as indicated by the dashed line) and also the mold half 3
In order to submerge a and 3b in the cooling bath and the washing bath 35, they are rotated about horizontal axes D1 and D1 '. Vertical mold halves 3a, 3b
After turning to return the switch to the initial position, the switchgear 26 '
The whole further swivels about the horizontal axis D2 (further position is indicated by dashed lines). In this position, the core is placed on the lower mold half 3a, the mold 3 is closed, the opening / closing device 26 'pivots back and the mold 3 is
It moves vertically by the gripping / transporting system.

FIGS. 19a to 19c show a method in which a mold according to the invention is connected to a processing unit, the processing unit being used in the second embodiment of the invention and being closed in the first embodiment. It can be used when the mold is transported. This processing unit has a horizontal plate 53 on the underside of which a holding element 13 ′ is arranged,
The spacing between the retaining elements can vary. The holding element is
It has a protrusion that engages a notch provided in the pin 15 of the connecting element 4. In this way, the mold is fixed in the horizontal and vertical directions and kept closed during transport.

[Brief description of drawings]

1a to 1e are diagrams showing a mold used in an apparatus according to the present invention.

2a and 2b are diagrams showing a first processing unit according to a first embodiment of the present invention for conveying a closed mold.

3a and 3b are diagrams showing a second processing unit according to the first embodiment of the present invention for transporting an open mold.

FIG. 4 is a diagram showing a low pressure die casting apparatus according to a first embodiment of the present invention.

FIG. 5 shows one of the work stations of the device according to the first embodiment of the present invention.

6a to 6d are views of another work station of the device according to the first embodiment of the present invention.

FIG. 7 shows another work station of the device according to the first embodiment of the present invention.

FIG. 8 shows another work station of the device according to the first embodiment of the present invention.

FIG. 9 shows another work station of the device according to the first embodiment of the present invention.

FIG. 10 shows another work station of the device according to the first embodiment of the present invention.

11a and 11b are diagrams for explaining the movement of a processing unit of the apparatus illustrated in FIG. 4 between individual stations.

FIG. 12 is a plan view of an apparatus according to a second embodiment of the present invention.

FIG. 13 shows a work station of the device according to the second embodiment of the present invention.

FIG. 14 is a front view showing another work station of the device according to the second embodiment of the present invention.

FIG. 15 is a diagram according to a second embodiment of the present invention;
4 is a plan view of the work station shown in FIG.

16 is a diagram according to a second embodiment of the present invention; FIG.
4 is a side view of the work station shown in FIG.

FIG. 17 is a front view showing another work station of the device according to the second embodiment of the present invention.

FIG. 18 is a diagram according to a second embodiment of the present invention;
7 is a side view of the work station shown in FIG. 7. FIG.

19a-19c are diagrams showing various ways in which a mold according to the present invention may be coupled to a gripper / transport device.

[Explanation of symbols]

1, 10, 10 'processing unit 3 mold 4 connecting elements 5 plates 3a, 3b Mold half 6 closure mechanism 7 closed cylinder 9 Base body 12 Holding device 19 casting station 20 core insertion station 21 Removal Station 22 Mold changing station 23 Washing station 24 Graphite processing station 26 Mold opener

Claims (21)

[Claims] 1. At least one work station (20,2)
1,22,23,24) and at least one processing unit (1,10,10 ') for transporting a mold (3) having two mold halves (3a, 3b) A low-pressure die-casting device for transferring at least one first processing unit (1) having a first structure suitable for transferring the closed mold (3) and the opened mold (3) Low-pressure die-casting device, characterized in that it comprises at least one second processing unit (10, 10 ') of a second structure suitable for 2. The first processing unit (1) is arranged such that a closed mold (3) can be transported from and / or to a casting station (19),
Further, the second processing unit (10, 10 ') is configured such that the opened mold (3) is further added to the work station (20, 21, 22, 2).
3,24) and / or said work station (20,2)
The low-pressure die-casting device according to claim 1, wherein the low-pressure die-casting device is arranged so that it can be transported to (1, 22, 23, 24). 3. The first processing unit (1) has a receiving shaft (35) and a closing mechanism (6), and the cross section of the receiving shaft (35) is the cross section of the closed mold (3). , The mold (3) is received by the receiving shaft (35), and the closing mechanism (6) includes a mold half (3) of the mold.
Low-pressure die-casting device according to claim 1 or 2, characterized in that a, 3b) can be pressed and are received by the receiving shaft (35) against each other. 4. The low-pressure die-casting apparatus according to claim 3, wherein the first processing unit (1) does not include any moving parts except the closing mechanism (6). 5. Low-pressure die-casting device according to claim 3 or 4, characterized in that the closing mechanism (6) comprises at least one hydraulically actuated closing cylinder (7). 6. The second processing unit (10, 10 ') comprises two
One holding device (12), each holding device being arranged such that the mold halves (3a, 3b) are arranged a predetermined distance apart from each other and are preferably arranged parallel to each other. 3b)
The low-pressure die-casting device according to claim 1, wherein the low-pressure die-casting device is used for holding the. 7. The holding device (12) includes the mold half (3).
7. A low pressure die cast apparatus according to claim 6 including a gripper mechanism used to hold a, 3b). 8. Low-pressure die according to claim 6 or 7, characterized in that the second processing unit (10, 10 ') does not include any moving parts except the holding device (12). Cast equipment. 9. The low-pressure die-casting device according to claim 1, wherein the processing units (1, 10, 10 ') are driven independently of each other. 10. At least a core insertion station (20).
And the unloading station (21) is a mold opening and closing device (26,2) that allows the mold to be received and opened and closed.
The low-pressure die-casting device according to any one of claims 1 to 9, further comprising 6 '). 11. At least one processing unit (1) of the first structure and at least two processing units (1) of the second structure.
0,10 ') is provided, The low-pressure die-casting apparatus as described in any one of Claim 1 thru | or 10 characterized by the above-mentioned. 12. At least one casting station (1)
9) and at least one work station (20,2
1,22,23,24) and a low pressure die casting apparatus, wherein the casting station (19) is provided with a clamp unit for receiving a die (3),
Having a connecting element (4), said mold half (3a, 3b) during casting
Together, and at least one processing unit for receiving said mold (3) by engaging on said connecting element (4) and with a further working station and a casting station (19) or Low-pressure die-casting device provided for transporting to and from a further work station, characterized in that the mold (3) is transferred or picked up by a clamping unit in a casting station (19). 13. At least one of the molds (3) has a base body (9, 9 ') containing the actual casting die and a connecting element (4) connected thereto, Mold (3)
The size and direction of the space part of the base body (9,
13. Low-pressure die-casting device according to claim 12, characterized in that the connecting element (4) is arranged such that it is determined independently of the size of 9 '). 14. Each mold half (3a, 3b) comprises at least one connecting element (4) having a predetermined shape and size, which is related to the size of the base body (9, 9 '). Without
14. Low-pressure die-casting device according to claim 13, characterized in that the spatial positions of the connecting elements (4) with respect to each other are determined. 15. A further working station is provided by a core insertion station (20), a removal station (21), a cleaning station (23) and a graphite treatment station (24).
The low pressure die casting apparatus according to any one of 2 to 14. 16. A method for operating the low-pressure die-casting device according to claim 1, wherein the first processing unit (1) closes the core insertion station (20) to the casting station (19). The mold is conveyed, and the mold is kept closed during the casting, and after the mold is closed, the mold is removed and transferred to a station (21) where the mold (3 ) Is opened, and the second processing unit (10, 10 ′) picks up the opened mold (3) from the unloading station (21) to open the mold in the next open work station (22, 23, 24), a method of operating a low-pressure die-casting device, characterized in that 17. A method for operating a low pressure die casting apparatus according to claim 16, which is a low pressure die casting mold to be used, the base body (9,9 ') including an actual casting die. And a connecting element (4) connected thereto, the maximum dimension of the space portion of the mold (3) and its direction with respect to the size of the base body (9, 9 '). Mold for a low-pressure die-casting device, characterized in that the connecting elements (4) are arranged so as to be determined independently. 18. The mold comprises two mold halves (3a, 3b).
Each of the mold halves is assigned at least one connecting element (4) of a predetermined shape and size, said two mold halves (3a, 3b) being assigned The spatial position of the connecting element (4) is determined by the base body (9,
Mold according to claim 17, characterized in that it is determined independently of the dimensions of 9 '). 19. The base body (9, 9 ') is cubic and divided into two mold halves, the connecting element (4)
Are plates (5), struts or other connecting parts, which are arranged laterally parallel to each other with respect to the base body (9, 9 ') and are connected to the base body by pins (34). , The processing unit is the base body (9,
20. The method according to claim 17 or 18, characterized in that it is possible to engage said plates (5), stanchions or other connecting parts at the same distance from each other and of the same shape, irrespective of the dimensions of 9 ').
Mold described in. 20. The mold (3) according to any one of claims 17 to 19, characterized in that it comprises a locking device for holding the mold halves (3a, 3b) together. Mold. 21. The mold according to claim 17, wherein the mold (3) is mechanically or electronically coded.