ES2319920T3 - HOT CAMERA PRESSURE INJECTION MACHINE. - Google Patents

Abstract

Hot chamber pressure injection machine featuring - a lower frame of the machine chassis (1), - a mold closure part (3) arranged on the lower frame of the machine chassis, and - a cover hood (6) for coating on the top and side of the mold closing part, - the covering hood (6) being held so that it can be moved in the lower frame of the machine chassis, and - being held so that a protection door (7) can be moved at least on one side of the cover.

Description

Chamber pressure injection machine hot.

The present invention relates to a machine hot chamber pressure injection especially for the magnesium melt processing.

Chamber pressure injection machines hot are in use in different embodiments for pour metal melt pieces and are manufactured, by example, by the applicant. The pressure injection machines of hot chamber usually comprise a lower frame of the machine chassis on which a piece of Mold closure carrying a mobile mold fixing plate and a fixed A melt supply unit is subject to a chassis part of the front machine, to keep ready in a casting bowl the melt to be poured and supply it in a hollow mold space, which is defined by a fixed mold half, mounted on the fixing plate of fixed mold, and a half of mobile mold, mounted on the plate mobile mold fixing, when the mold closing part is It is in its closed position. The mold closure piece is covered in a lateral and superior zone, with the exception of an area of service that is free, by a covering hood the which, in conventional machines, is fixedly mounted on the frame bottom of machine chassis. As access protection for the service area that connects in front, in which find the fixed mold fixing plate, serve a door protection also frequently movable in pieces of machine frame.

In German patent DE 28 20 538 A1 it is given to know a suction hood for pressure molding machines metal that give off exhaust gases, aerosols and vapors and machines similar, which can be moved, perpendicularly or in rails elevated slopes, by means of a lifting mechanism or over inclined rails, and presenting a suction funnel preferably angled, which is arranged with a large opening oriented down on the machine and ends with its small opening in an exhaust gas outlet pipe that can be move telescopically, which allows the movement of the hood. To the at the same time, the rails can be specially arranged on a cover plate or a molding frame to Pressure. The pressure molding machine presents, on a rear wall, a sliding door which is open during any act of work or to change the molds, in case of breakdown or similar. The Coating hood subsequently has an extension which extends downwards, which forms a skirt formed by a back wall and a perforated or split sheet diaphragm and that, when the sliding door is open, cover the rear area in issue for the maintenance of an aspiration action enough.

In German patent DE 29 49 641 A1 it is given to know a pressure molding machine in which, similarly, it is made a machine structure as a carrier for a hood exhaust air that limits tightness, which completes the covers machine side up, which is supported so sliding on the machine structure by means of a guide roller skate. The exhaust air hood may be split from such way, in the area of a compression cylinder of the shaper to pressure, that a piece that is on an oven is in fixed position, while a piece that covers the closure piece of the press molding machine can be moved to work necessary to a mold clamping area.

In patent DE 34 23 224 C1, a suction device in pressure molding machines or molding machines by injection with a suction hood, formed with a door mobile supported protection, which is connected to a vacuum cleaner and with a filter unit for exhaust gases and vapors.

The invention poses the technical problem of provide a hot chamber pressure injection machine of a new type, which is especially suitable for magnesium melt processing and / or make possible a easy accessibility of the mold closing part, for example for maintenance works.

The invention solves this problem. providing a hot chamber pressure injection machine with the characteristics of claim 1.

In a chamber pressure injection machine hot according to claim 1 the cover is movable clamp, characteristically, on the frame bottom of machine chassis. You can for that, with the goal easier accessibility to the mold closing part, for example for maintenance work, it can be moved to a suitable position, in which it releases the components of machine, for which access is desired in each case. For the less on one side of the hood is attached, movable, a protection door.

Since the protection door is held in the cover and not, for example, in the chassis part of the machine, it is displaced, during the displacement of the hood of coating, automatically with this one. In the operation of normal machine wash, in which the cover It is in a normal operating position, the door of Protection can be closed and opened as usual.

In an advantageous improvement of the invention the cover hood can be displaced from a normal operating position, in which it is located in the normal machine wash operation, on the one hand, towards back to a rear end position and forward to a front end position. In this way, it can be provided in special accessibility to certain areas of the closure piece  of mold or machine.

In a functional structuring and constructively advantageous the cover hood is attached, by lateral guide rails with roller support, movable in the lower frame of the machine chassis. He roller support can present, in another structuring of the invention, a large number of rollers arranged in the frame bottom of the machine chassis, on which the cover hood. The arrangement of rollers in the chassis of the lower machine instead of in the cover hood has advantages over a lower propensity to get dirty.

In an improvement of the invention, it is provided a chimney which is, in terms of height, above a fixed mold fixing plate and / or a unit of melt supply. This has the essential advantage that exhaust heat or exhaust air is generated, which are generated by a laundry container and / or a melt supplied by the casting vessel in a hollow mold space between a half of fixed mold and a mobile, which can be removed with very effective upwards, through a corresponding effect of chimney Precisely during magnesium processing as material with spontaneous ignition can be removed in this way hot exhaust gas from a heated machine zone, in which the magnesium is melted and the magnesium melt is transported, effectively and with relatively small complexity towards above, in order to minimize any fire hazard.

In a refinement of this aspect of the invention the chimney contains a fixed half-shell, arranged in a fixed machine part, and a mobile semi-helmet, arranged in the piece of closing of mold, which interact, at least in the molding position of the mold closing part, with the formation from the chimney

In another structuring of the invention are two chimney halves formed by, in each case, a half-shell of U-shaped chimney, which oppose with its open sides and that engage each other in the molding position with formation of the interior chimney channel and a chimney opening side. The main part of the exhaust heat or gases of exhaust is driven up through the chimney channel inside. The side chimney opening reinforces the action of chimney outlet and also reduces the thermal radiation of the fireplace in the direction of the service area and the back side of machine. In a special structuring the two half-shells of U-shaped chimney are sized with different widths, so that a semi-helmet can be housed in the area located between the two U-shaped branches of the other half-shell which is more width.

In another structuring of the invention is formed, at the lower end of the chimney, an area of funnel-shaped chimney injection. It also contributes to the effect of chimney extraction and makes it possible to obtain of exhaust heat or exhaust gas through a wider area than the chimney itself. In an improvement of this measure the chimney injection zone contains several circulation plates arranged inclined.

In an improvement of the invention is provided for a vertical adjustment of the injection position of the machine being, in the case of the realization of the chimney starting of two chimney half-shells, the mobile chimney half-shell vertically movable with respect to the chimney half-shell permanent. In this way the effect of desired chimney of vertical adjustment of the injection position of Mold halves.

In an improvement of the invention, it is coated a side area of a machine chassis part front by a protected cover for closure arranged with tilting movement. This prevents a crimp or access to unwanted interior by the service person during the machine mold process.

In an improvement of the invention, they are provided one or several cable channels for the accommodation of electric cables. As perfection of this measure presents the corresponding cable channel and / or the cable that is passed to through it a thermal insulation. In this way, the cable is advantageously protected and, if necessary, housed isolated thermally

In an improvement of the invention, a pressure block zone of the machine is equipped with a pressure block coverage assigned, which makes a Additional advantageous protection measure of the machine.

In an improvement of the invention, it is provided, in the service area, a safety stepping on behind in the form of an additional crossbar in the frame, which prevents an unintended entry or confinement in the chassis of the corresponding machine of a service person during a machine molding process.

In an improvement of the invention, a machine electrical system block is formed as part plug-in, which can be plugged into a plug-in space corresponding in the lower frame of the machine chassis. In further refinement of this measure, a coverage as external protection for the system block Machine electrical plugged in. This can provide the machine, comparatively simple, with your piece electrical system and it can be protected against influences outside

In an improvement of the invention, it is mobile subject a pendant desk in a cover of The mold closure piece. In this regard it can be treated by example of an indication and / or control console. Thanks to the mobile suspension on the hood, the hanging console It makes possible a comfortable handling for the user from there, depending on the management elements planned according to the needs and / or presentation of machine parameters or similar, for example, on a screen.

In an improvement of the invention is fasten a lamp in a cover of the piece mold closure. This enables, if necessary, a lighting of a corresponding area of the machine, especially also in the area of the mold closing part, for example with maintenance / service purposes. The lamp can be also arranged movable in the cover hood, with the in order to be able to be taken in each case to a lighting position favorable.

In the drawings forms of advantageous embodiments of the invention and are described to continuation. In the drawings:

Fig. 1 shows a side view of a hot chamber pressure injection machine with door open protection,

Fig. 2 shows a view corresponding to the Fig. 1, although with the protection door closed,

Fig. 3 shows a view corresponding to the Fig. 1, although with a cover hood displaced to a rear end position,

Fig. 4 shows a view corresponding to the Fig. 3, although with a cover hood displaced to a front end position,

Fig. 5 shows a top view on the machine in the state of Fig. 4,

Fig. 6 shows a view of the machine with a detailed view for the illustration of the scrollable guide of the cover hood,

Fig. 7 shows a partial view of Fig. 6 of an area in which there is essentially a chimney,

Fig. 8 shows a side view of a part of the machine, in which a chimney is located,

Fig. 9 shows a side view along of line A-A in Fig. 8,

Fig. 10 shows an inclined side view of a top machine part top machine part with the chimney and with protection cover turned on,

Fig. 11 shows a view corresponding to Fig. 10, although with the protective cover closed and a closing part position with respect to the position of closure of Fig. 10,

Fig. 12 shows a view of a lateral area bottom of the machine for illustration of a coverage of closing block there,

Fig. 13 shows a side view, partially in perspective, of the machine for the illustration of a  plug-in module of machine electrical system,

Fig. 14 shows a detailed view of the Fig. 13 for the illustration of the system block coverage electric machine,

Fig. 15 shows an inclined side view of a machine service area for the illustration of a tread safety from behind, and

Fig. 16 shows a perspective view tilted from above on a top of the hood of machine coating in a variant with hanging console and scrollable lamp

A chamber pressure injection machine hot represented, in each case in an overview, in the Figs. 1 to 6 presents as mechanical support elements a lower chassis frame of machine 1 and a chassis part of the front machine 2, which supports a casting unit conventional, which is not shown in greater detail. About him lower frame of machine chassis 1 is fastened, so usual, a mold closure piece 3 of a structure conventional with four carrier columns (32), which on its side front carries a mobile mold fixing plate 4 and a plate fixed mold fixing 5.

For the covering of the closing piece of mold 3 serves a hood 6 which is attached, of characteristic shape, movable in the longitudinal direction of the machine, on the lower frame of the machine chassis 1. On in particular, the cover hood 6 can be displaced, from a normal operating position shown in Figs. 1 and 2, optionally, to a rear end position 6a, shown in Fig. 3, or to a front end position 6b, shown in Figs. 4 and 5.

In the hood 6 is subject to such a protection door 7 that can be moved between an open position, shown in Fig. 1, and a position closed, shown in Fig. 2, when the hood 6 It is in its normal operating position. For the movable clamping of the protection door 7 are provided, on each of the two sides of the hood in each case two lanes of guidance 8 arranged one above the other, with which in each case two rolling rollers 9 provided on the side interact inside the door. The protection door 7 is provided with a window 10 in the front side area.

By displacing the hood of cover 6 to its rear 6a end position, shown in Fig. 3, the mold closing unit 3 becomes freely accessible not only from its front zone, but also from its central zone and rear, from the sides and from above, as follows from the Fig. 3, so that accessibility, for example for Maintenance work is facilitated significantly. By on the other hand, the protective hood 6 releases, when displaced to its front end position 6b shown in Figs. 4 and 5, one machine part 11 with machine components mounted on the lower chassis frame of machine 1, which contain as usual drive units, among other things, to the closing piece, so that once again its accessibility, for example for maintenance work.

In an advantageous embodiment they are mounted, for the mentioned displaceability of the hood of coating 6, roller rails 12 with rollers 13, on which the cover 6 is supported with corresponding rolling surfaces 14, as can be recognized especially in Figs. 1 and 6 and can be deduced especially from the Detailed view of Fig. 6 enlarged for this. This kind of support  roller cover 6 has, due to the fact that the rollers are mounted on the lower chassis 1 and that the covering hood 6 rests on them, an advantage special regarding a susceptibility to fouling relatively minor

As shown in Figs. 1 to 5, the Machine shown is largely covered by pieces of coating and protected with it, as is especially favorable also for magnesium pressure molding. Tailored to lining also belong in addition to the hood of covering 6 with the protection door 7, some pieces of liner 15a, 15b lower for zone coverage sides of the lower frame of the machine chassis 1, a lower side lining on the chassis part of the machine front and a protective cap 17 monitored for closure that covers, through it, the chassis part of the machine front, shown in Figs. 1 to 5 in one position closed.

As another feature, the machine hot chamber pressure injection shown presents a chimney 18 which serves to remove hot exhaust gas or exhaust heat effectively and, thanks to that, in the special during the pouring of magnesium, continue to exclude any fire hazard due to spontaneous ignition. At exemplary embodiment shown the chimney 18 is formed by a U-shaped outer half-shell 18a and an inner half-shell 18b in U shape. This construction can be recognized in detail in the Figs. 6 to 11. The two chimney half-shells 18a, 18b U-shaped they are oriented towards each other with in each case their side in shape U open and sized with different and arranged widths such that the narrowest half-shell 18b can be housed in the area between the U-shaped branches of semi-helmet 18a more wide, leaving in each case a chimney opening 19 between the outer flank sides of chimney half casing 18b plus narrow and the outer side of the skinny opposite of the half-shell of 18th wider fireplace. Inside a channel is formed of chimney 20, supporting the lateral chimney openings 19 the chimney outlet action 18 and performing a function of heat shielding.

In the exemplary embodiment shown the widest half-shell 18a is fixed in a fixed position to the piece of front machine frame 2, semi-helmet 18b being more narrow, on the contrary, to the closure piece 3, especially to the fixing plate 5 fixed. Thanks to this, the half-helmet of narrower chimney 18b forms a mobile seminonocoque with respect to the widest fixed chimney half-shell 18a, which can be move between the closed chimney position, shown in Fig. 10, and an open chimney position, shown in Fig. 11.

The machine is also equipped with an adjustment of the conventional vertical injection position and that, therefore, it is not shown in greater detail, to which the half-hull is attached of chimney 18a mobile, that is to say the chimney half-shell 18b is moves together in a vertical direction with the adjustment movement of the injection position, so that it is at a fixed distance by above a melt supply zone 21 of the machine below, see Fig. 8. In Fig. 8 you can also recognize the position of the chimney 18 at height above and directly behind the fixed fixing plate 5 and, therefore, above the mass supply zone melt 21 heated during machine operation, which usually contains a laundry container next to a supply of molten mass towards the fixed fixing plate 5 and, through it, towards the middle of fixed mold.

To continue increasing the exit action of exhaust gas and heat removal from chimney 18 is formed, at its lower end, a chimney entrance area in funnel shape, because they are arranged laterally, in both half-helmets, input funnel plates 22, 23 and in the area adjacent to the fixing plate 5 fixed conductive plates of additional output current 24 in an inclined position adequate. The funnel-shaped chimney entrance area structured in this way widens the area of obtaining the chimney 18 clearly above the width of its half-shells 18a, 18b.

It is understood that in embodiments alternatives of the invention a structure is also possible different from the chimney with a heat / gas removal action of similar escape, for example from two half-shells in the form of U equal widths displaced somewhat laterally one with respect to the other.

In Figs. 10 and 11 can also be recognized the rotational mobility of the protection cap 17 mentioned more above, shown in Fig. 10 in its open rotated position and in Fig. 11 in its closed closed position. Like another feature of the machine shown, a channel can be recognized of cable 25 in Figs. 10 and 11, which serves as the guide Vertical electrical conduction cables housed in it. The same  time, the cables and / or the channel 25 are preferably provided With thermal insulation. If necessary, the cable channel it can also be located in a position that is thermally even less loaded.

In the view of Fig. 12 you can recognize Other advantageous coating components of the machine, in special a front side crossbar 26 and a pressure block coverage 27. At the same time, the coverage of pressure block 27 forms a separate protection cover for an otherwise usual machine pressure block, which is not Show in greater detail. In the view of Fig. 13 you can recognize, on the one hand, a machine electrical system block 28, formed as a plug-in module, which is inserted as total block in a corresponding plug-in space on the side of the lower frame of the machine chassis 1. The block of machine electrical system 28 can then be covered with a coverage 29, as can be recognized in Fig. 14, which corresponds to coverage 15a or 15b in Figs. 1 to 4

Fig. 15 shows the machine with the hood of shrouded cover 6, together with protection door 7, a its rear end position in an inclined front view on the area of the closure piece 3. In this view you can recognize, as another feature of the invention, an additional cross member 30, which is arranged as safety of treading behind in a longitudinal crossbar 31 of the lower chassis frame of the machine 1, where it protects from an access to the interior or a step by unintended back by a service person, when the machine is in active operation and the door of protection 7 is closed. It should also be mentioned that the four columns 32 of the mold closure part 3 are covered in their end of rear thread end with in each case a bushing protection 32a, in order to protect the threads against deposition of dirt / particles during the operation of the machine.

Fig. 16 shows the part of interest here of a variant of the machine in which in a cover piece 33 top of the cover hood 6 is held, on the one hand, a hanging console 34 and, on the other, a lamp 35. The console pendant 34 is held in particular, through an outgoing arm 36, at a clamping point 37 on the upper side of the workpiece cover hood cover 33 rotatable in a horizontal plane. The projecting arm 36 leads, horizontally, away from the side top of the hood and then laterally with respect to the hood 6 with a rectangular arch down, at whose lower end the hanging console 34 is coupled, meanwhile, mobile with a vertical axis and one horizontal. Through these mobile console joints pendant 34 on the outgoing arm 36 and the outgoing arm 36 on the cover hood 6, the hanging console 34 can be carried by a service person to a position of visibility and / or of more comfortable handling in each case. Hanging console 34 is equipped, depending on the needs, to meet indication and / or handling functionalities, for example with a optical indication unit, such as a screen, and / or one or more operating keys or other operating elements, such as those They need for such a machine.

The lamp, made as a battery lamp 35 in the example shown, is mounted on the front end of the hood cover part 33 and can, therefore therefore, to illuminate a part of the machine located under it, in especially a corresponding area of the mold closing unit. With the help of the lamp 35 you can also illuminate areas of the machine and poorly lit machine parts, for example overshadowed by the hood 6, which is favorable especially for maintenance / service purposes. With the final purpose if optimal lighting is achieved in each case, the lamp 35 is can move longitudinally in the stopper piece of cover hood 33 via a rail guide longitudinal 38, comprising a pair of rails 38a, fixed to the cover piece 33, and a pair of rails 38b, driven therein, which holds the lamp 35 with an angled front end. For a easier movement of the lamp is connected so rigid with the pair of rails 38b holding the lamp 35 a operating lever 39 which, as shown, extends laterally outward and along the inclined section of the cover hood 6 down and thus can be easily taken by a user. In the example shown is also arranged in the cover of the hood cover 33 a retention rail 40, which in the longitudinal distances that can be predetermined is equipped with retention slots, in which can crimp a corresponding retention boss on the lower side of the operating lever 39. In this way the lamp 35 can be set locked in positions different lengths with respect to the covering hood 6.

Claims (20)

1. Chamber pressure injection machine hot presenting

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a lower frame of machine chassis (1),

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a mold closure part (3) arranged on the lower frame of the machine chassis, and

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a covering hood (6) for the side coating top and side of the mold closure piece,

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holding the hood of covering (6) so that it can move in the frame bottom of machine chassis, and

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being held so that you can move a protective door (7) at least on one side of the cover hood.

2. A hot chamber pressure injection machine according to claim 1, further characterized in that the covering hood is secured in the lower frame of the movable machine chassis, starting from a normal operating position, backwards to an end position ( 6a) rear and forward to a front end position (6b). 3. Hot chamber pressure injection machine according to claim 1 or 2, characterized in that the cover is secured by means of lateral guide rails (12) with a roller support, which can be moved in the lower frame of frame. 4. A hot chamber pressure injection machine according to claim 3, characterized in that the roller support has a plurality of rollers (13) arranged in the lower frame of the machine chassis, on which the covering hood rests. 5. Hot chamber pressure injection machine according to one of claims 1 to 4, also characterized in that it has

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a chassis of the machine to which the closing part of mold (3), with a mobile mold fixing plate and a fixed one (4, 5), and a melt supply unit (21), and

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a chimney (18) arranged in height above the fixing plate of mold (5) and / or the melt supply unit (twenty-one).

6. A hot chamber pressure injection machine according to claim 5, characterized in that the chimney has a fixed chimney half shell (18a), which is fixedly fixed in a chassis part of the front machine (2), and a mobile chimney half-shell (18b), which is attached to the mold closing part (3). 7. A hot chamber pressure injection machine according to claim 6, further characterized in that the two chimney half-shells are U-shaped and oriented towards each other with their sides open, crimping one in the other in a closed position with the formation of an internal chimney channel (20) and a lateral chimney opening (19). 8. A hot chamber pressure injection machine according to claim 7, characterized in that both chimney half-shells have different widths, such that one of the chimney half-shells can be housed in the other chimney half-shell. 9. Hot chamber pressure injection machine according to one of claims 5 to 8, characterized in that a funnel-shaped chimney inlet area is formed at the lower end of the chimney. 10. Hot chamber pressure injection machine according to claim 9, characterized in that the chimney inlet zone contains several deflector plates (22 to 25) arranged inclined. 11. Hot chamber pressure injection machine according to one of claims 6 to 10, characterized in that it also has means for vertical adjustment of the injection position, in which one of the two chimney half-shells is coupled. 12. Hot chamber pressure injection machine according to one of claims 1 to 11, also characterized in that a side area of a chassis part of the front machine is covered by a protective cover (17), monitored for closure , and arranged with tilting movement. 13. Hot chamber pressure injection machine according to one of claims 1 to 12, also characterized in that it has one or more chimney channels (25) for housing electrical cables. 14. Hot chamber pressure injection machine according to claim 13, further characterized in that the corresponding cable channel and / or the cables housed therein are provided with thermal insulation. 15. Hot chamber pressure injection machine according to one of claims 1 to 14, characterized in that it comprises a pressure block coated with a separate pressure block cover. 16. A hot chamber pressure injection machine according to one of claims 1 to 15, characterized in that it also has a protection cross member (30) as a safety step behind in the service area in the lower frame of the machine chassis . 17. Hot chamber pressure injection machine according to one of claims 1 to 16, characterized in that a block of the machine electrical system is formed as a plug-in part and can be plugged into a corresponding socket opening in the lower frame of the machine chassis. 18. Hot chamber pressure injection machine according to claim 17, further characterized in that it comprises a covering of the outer side of the machine electrical system block. 19. A hot chamber pressure injection machine according to one of claims 1 to 18, characterized in that a hanging console (34) is movably attached to its cover (6) of the mold closing part. 20. A hot chamber pressure injection machine according to one of claims 1 to 19, characterized in that a lamp (35) is attached to a covering hood (6) of the mold seal.