DE3209161A1 - TRAVERSE CAR - Google Patents

Description

DR. INC. HANS LICHTI -.- 04.PLZ-UNC. "η EI] N * ER-LIC ΗΤΓ DIPL." PHYS. DR. JOST LEMPERT """ PATENTANWÄLTE

D-7500 KARLSRUH E 41 (CRÖTZINCENI · DU R LA CHER STR. 31 (HOCHH AU S)

TELEPHONE (0721) 48511

March 12, 1982 6370/82-Lj

BMD Badische Maschinenfabrik Durlach GmbH Pfinztalstrasse 90
D-7500 Karlsruhe 41

Traverse trolley

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The invention relates to a box-For man position for foundries with a two-story conveyor track with traverse carriages that runs endlessly in a vertical plane and at least two transversely to the direction of transport have adjacent places, of.then

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the one - a box space - at _v einerZulegesta'iionPÖfe takes up a form consisting of a lower box and an added upper box, which is poured onto the upper lane, then transferred to the lower lane, guided on this in the opposite direction to the other end and there returned to the upper lane is where in an ejection station the molded bale is separated from the molded kas * fer / 'and transferred to the neighboring place - a bale place - of the traverse -, -? wagon, which may have a U-shaped trough there

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is deported, while at the same time the one there from an earlier work cycle Form bales located on a further bale place next to it or via an unloading station on an unpacking section via « while the empty molding box is separated into top and bottom boxes and these are transferred to the molding machine.

A box molding line of this type is known (DE-AS 1 962 131) and has proven itself in practice. The leadership of the forms or the Form bales on top of each other in two storeys in particular bring considerable space savings, since the endless conveyor track both serves as a casting line, as well as a cooling line and for the movement the forms, as well as the form ball, are exclusively linear Movements are necessary. Furthermore, this molding system can be easily adapted to the cooling time required by, for example, the Truss wagons have two or more bale spaces next to each other, so that the individual bale of the mold passes through the conveyor track several times. In this molding line, there is another parallel to the conveyor Conveyor line arranged, the cross conveyor with the conveyor track communicates. This conveyor line is through a molding machine passed through, in which the upper case and lower case are molded one after the other. Both the empty and the molded boxes are not moved on this conveyor line in traverses, but with other means of transport. The operation of this molding line is the following:

The molded upper parts leaving the molding machine one after the other and lower box first pass several core loading stations on said parallel conveyor line and arrive at this

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Conveyor line in an additional device, with which the upper box is attached to the lower box. The complete shape is then taken from the The cross conveyor is transferred to a traverse carriage on the upper track of the endless conveyor track and passes in the same direction of transport like a casting line on the core insertion line. At the end of this, the mold is lowered onto the lower track and in the opposite direction It is transported towards the other end of the lower lane, where it is lifted onto the upper lane and there arrives in the further cross conveyor, from which it is pushed towards the other conveyor line in an output station. There the shaped bale is separated from the box and transferred to a separate transfer device, from which it is transferred to the bale area a traversing car is passed in the upper track. The empty molding boxes are then sent to the cross conveyor Transfer device from which the upper box and lower box are fed one after the other to the molding machine. The cross conveyor also has a device by means of which the mold ball, which is in the same traverse carriage from which the Form had been removed, is located on a side parallel to the conveyor track on the opposite side of the core insertion section arranged unpacking section, z. B. a rake or the like. Is passed. The resulting empty ball space of the traverse wagon is then immediately afterwards covered with the previously unpacked bale of the mold by means of the transfer device. The form balls wander then in the upper lane again in the direction of the goat path, with the box space next to them up to the first mentioned Cross conveyor remains free.

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In the known system, there are also measures for carrying along Complaints provided. So on the first-mentioned cross conveyor in the area of the loading station of the endless conveyor track the weighting bars are placed on the complete mold and then wander through the casting path on the upper track the lower lane and then the upper lane again up to the second Cross conveyor. There they are removed from the mold and placed on the Traverse wagon placed in the area of the building site. The traverse trolley has a U-shaped trough in the area of the bale area, which receives the shaped bale. On the upper edges of the trough walls the weight bars are set down and run through the upper track. up to the first cross conveyor, where they are taken off and on again the finished forms arriving there are put on.

This molding system allows with a small footprint and more optimal Utilization of the absolutely necessary funding a minimum of drives, which also practically all work linearly Hydraulic thrust drives that work linearly are required for conveyor lines.

The invention is based on the object of the already very low To further reduce the space required by the known molding system and at the same time reduce the structural effort.

Starting from the molding system described above, this The object is achieved in that each traverse car has at least one further lying transversely to the transport direction next to the bale places Box space and the upper track between the molding machine

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and the loading station serves as a core insertion line on which in a Loading station, the molded lower box is transferred to one box, the molded upper box to the other box location.

Due to the design according to the invention, the parallel core insertion path existing in the prior art becomes the endless one Integrated conveyor track, shifted to its upper track. This increases the area covered by the system considerably reduced. The molded upper and lower boxes can be placed directly behind the molding machine in the loading station on the upper one Web are passed so that the side of the conveyor track only in the area space is required for the molding machine. As a result There is also no need for the different types of transport that were previously necessary on the entire parallel conveyor line, since the empty boxes in the molding machine and the molded boxes onto the upper conveyor track get there by the shortest route. In addition, the traversing carriages in the area between the molding machine and the feeding station, in which the box spaces are empty in the known system, occupied with the molded upper and lower boxes, so that they are optimally used.

Move the upper and lower boxes placed on the upper track, which are located on the traverse carriage at right angles to the direction of transport along the core insertion line at a slower speed than in the case of the known molding system, since they move there on the no-insert line in the working cycle of the molding machine while they on the core insertion section of the system according to the invention only at

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every second machine cycle a conveyor cycle can be moved. It Therefore, one worker will usually be sufficient even for complex reworking of the molded box.

According to one embodiment of this basic concept of the invention are the two box spaces of each traverse carriage directly next to each other and the lower box is transferred to the front and the upper box to the rear box space at the loading station. If necessary, namely when the more extensive and on the upper case The boxes can also do heavier rework be arranged in reverse.

The invention is particularly advantageously implemented in that the Truss carriage at the rear box place one box in one has rearward sloping inclination holding recording. In order to it is possible to also arrange the molded box arranged on the rear box space in such a way that it is aligned with the molding surface is turned towards the worker, so that this rework can be carried out on both boxes at the same time, without going through the box in front to be significantly hindered. This results in a further saving of space across the conveyor track.

The aforementioned embodiment is thereby made in a particularly simple manner realized) that the traverse carriage has on its one side a cantilever arm that is pulled down in steps, on which lower level of one of the two box spaces is arranged. The other box place can then either be on the upper level of the

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Cantilever are approximately in alignment with the ball places, wherein the cantilever is expediently designed so that the upper box and Lower boxes partially match each other in their position on the box places overlap, or the step-shaped cantilever arm at the transition from the upper to the lower step points to the other box space with the mount for inclined mounting of one box.

The latter variant has the great advantage that the front Crate space lowered from the relatively high level of the upper track to the desired working level due to the step-shaped cantilever arm is, so that the molded box located there, the lower box, is easily accessible from above. Fener is too the molded box held at the inclined box space, e.g. B. the upper box, on the side with the shaped surface slightly from to reach forward. Due to the stepped cantilever arm, the entire conveyor track can be installed at floor level, whereby only for the stepped cantilever arm of the traverse carriage · on the lower one Railway a sewer pit arranged next to the rails located near the ground must be provided. Also on-site Foundation work to be carried out is therefore less extensive, than if the entire conveyor track has to be arranged lowered into a pit.

In order to keep the extension of the cantilever arm as small as possible, the rails for the truss carriages of the upper track can be compared to those of the lower track on the side of the step-shaped cantilever arm to be displaced.

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Instead of the previously described embodiments in which - As in the prior art - only one molding machine is provided, which molds the upper case and lower case one after the other according to another embodiment of the basic idea of the invention, each traverse carriage on each of its two sides Box space and have the ball spaces in between and the Conveyor track can be assigned an upper box molding machine on one long side and a lower box molding machine on its other long side, with the upper box on the other long side at the loading station be transferred and added to the lower box located there. In this way, double the working speed can be achieved. The fact that the box space occupied by the upper box is free behind the loading station means that, as in the case of the system with a single-station molding machine, the molded bale can pass through this box space be pushed onto the unpacking section.

Appropriately, each traverse wagon has its own drive, z. B. an electric single drive. This results in compared to the prior art, a simpler control and Manipul ierbarkeit, in particular, individual car from the Association removed and, for example, brought into the parking position will. In addition, the large and quite expensive push drives are avoided. In addition, it is no longer necessary in this embodiment that the traverse car for transmission the driving forces collide.

As already indicated at the outset, in the known molding system on the upper track at the loading station on the upper box of the complete form weighting iron placed on the

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entire first conveyor section remain on the mold until the mold barrel is ejected and then on the U-shaped one Troughs of the traverse trolleys are conveyed back to the loading station. In the system according to the invention, however, is At the loading station, the weighting bars are removed from the cast molds that are passing them on the lower track provided on the upper web transferring device. The weighting bars therefore only run on the casting line and on Another section of the lower track of about the same length, in order to then serve as weighting again on the upper track can. This will keep the number of weights in circulation considerably reduced.

Finally, the invention relates generally to box molding equipment for foundries with traversing carriages moving on a track as means of transport, the at least two transversely to the direction of transport Have adjacent places, one of which - a chestnut place - at a loading station die-from lower box and added upper box existing form, the other - a ball space - with possibly a U-shaped trough, one of the Molding box accommodates separate mold balls., The finished form is guided on part of the web along a casting path, while the subsequent part of the web is used as a cooling path for the cast Forms or is used for the mold balls.

Molding systems of this construction are known in a large number of embodiments, the transport generally being exclusively takes place in a horizontal plane. Also for such a molding line the invention proposes to reduce the space requirement,

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that each traverse wagon has a stepped shape on one side cantilever arm pulled down, on the lower level of which the box space for receiving, for example, the molded lower box least is arranged, and at the transition from the upper to the lower stage has a further box space with, for example, the Molded upper case in a sloping backward sloping position receiving bracket, the one in front of the loading station Part of the track, on which the upper and lower boxes are arranged side by side, serves as a core insertion section. According to the invention trained traversing car can not only be used at the beginning known system described, but use space-saving and inexpensive in any system with truss car.

The invention is illustrated below with reference to in the drawing Embodiments described. In the drawing show: -

Figure 1 is a plan view of a molding system in a schematic representation;

Figure 2 is a front view of the endlessly guided conveyor track ' according to Figure 1 in a preferred embodiment;

FIG. 3 shows a view similar to FIG. 2 only of one of the two Railways with another embodiment of the traverse carriage;

FIG. 4 shows a view similar to FIG. 3 of a further embodiment of the trolley;

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FIG. 5 shows a fourth embodiment of the traverse carriage in FIG same view and

FIG. 6 shows a view corresponding to FIGS. 3 to 5 of a further embodiment.

The molding system shown schematically in FIG. 1 essentially consists from a molding machine 1 and a conveyor track 2 guided endlessly in a vertical plane, of which only the upper one in FIG Track can be seen, which are connected to each other at their two ends 3, 4 via a respective lifting device. On this conveyor track move as a means of transport traverse carriages 5, which can be seen in more detail in the figure in view.

The two tracks 6, 7 arranged one above the other can be seen in FIG. which are each formed by rails on which the traverse car 5, which is preferably with an electric single drive are provided, are moved. Each traverse carriage 5 has a U-shaped, open towards the sides in FIG Trough 8, within which there are three bale spaces 9, each occupied by a bale 10. The traverse carriage 5 has a cantilever arm 11 which, in the exemplary embodiment according to FIG. 2, is pulled down in a stepped manner. On the lower Level of the cantilever is a box space 12, z. B-. for a molded lower box 13, while at the transition 14 between the ball places 9 and the box place 12 another box place 15 is arranged, which the other molded box, e.g. the upper box 16 in an inclined position with outwardly facing Takes up form surface. For this purpose, the cantilever in the

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Area of transition 14 has a holder 17 for the box. Between the two webs 6, 7 a cover 18 is arranged, which can also form a cooling air tunnel and on her one side is formed in accordance with the shape of the cantilever arms 14.

As can be seen in FIG. 2, the rails of the lower track 7 are on Mounted at floor level. In addition to the rails, there is a channel pit 19 in the foundation in which the cantilever arms 11 of the trusses dare 5 run the lower track. It can also be seen here that on the box location 12 of the lower step of the cantilever arm 11 a complete Form 20, consisting of an upper box and a lower box.

To explain the mode of operation of the molding system, see again Reference is made to FIG. The molding machine 1 is in a known manner a model! changing device 21 is assigned to the alternating Retraction and extension of upper and lower case models' allowed. Through the molding machine 1 is a conveyor line 22, which is arranged approximately parallel to the closed conveyor track 5, passed through. This is preferably an on-board roller conveyor on which the molding boxes run without any further means of transport. This edge roller conveyor 22 is behind the molding machine 1 via a Transfer carriage 23 with the upper track 6 (Figure 2) of the endlessly guided Conveyor track 5 in connection. The sliding carriage 23 has also a tilting device working in the vertical plane. At the sliding carriage 23 closes on the upper track 6 a Core insertion line with several positions 24, at the end of which a loading device 25 is arranged. The Uhterkasten and Oberkasten

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are alternately from the sliding carriage 23 to the upper one Lane 6 released by pushing the lower box 13, as already described with reference to FIG. 2, onto the lower box location 12, the upper box 16, however, after actuating the tilting device in an inclined position in the holder 17 at the other box location is introduced. The upper and lower boxes arranged in this way run through the core insertion section with the positions 24. The loading device 25 grips the upper box 16 and turns it to the lower box 13, so that behind the loading device 25 complete Forms 20 are delivered to the casting line located there. At the same time, in the area of the add-on device - in the Drawing not shown - 20 weight bars are placed on the upper box of the complete form. At the end of the casting line the molds are lowered onto the lower track 7 (FIG. 2) and run there in the opposite direction from end 3 to the end of 4 of the conveyor track. The weight bars can be removed again on the lower track in the area of the loading device 25 and placed on the upper web to be put back on there. The shapes will be at the end of 4 of the bottom web lifted back onto the upper track and there arrive at a cross conveyor device 26. There the bale of the mold is removed from the molding box expressed or lifted and moved by means of a pusher device transversely to the transport direction in the trough 8 of the traverse carriage 5. The shaped bale located on the outer ball space of this traverse carriage is simultaneously placed on one next to the Unpacking section 28 arranged on the conveyor track is pushed off. The empty molding boxes are moved and arrive in the opposite direction in a separator 29, from which the empty one after the other

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Lower box and upper box via the on-board roller conveyor 22 of the molding machine 1 are fed. The number of bale spaces 9 in the trough of each traverse carriage 5 depends on the required cooling time and / or the available track length. In the embodiment shown, each traverse carriage 5 has three rows to three ball places each (Figure 1), so that each malleable on the endlessly guided conveyor track 2 performs a total of three revolutions before it is delivered to the unpacking section 28. To the one on this one The given cooling time, there is still the cooling time between the Casting line and the cross conveyor 26, on which the mold ball is still in the molding box.

In the embodiments according to Figures 3 to 6, the Träversenwagen 5 each shown without the landing gear. Here, too, it is only indicated by way of example that the traverse carriage 5 within of trough 8 three bale places, if necessary again in three rows each, having. In addition to the trough 8, in the embodiment according to FIG arranged next to one another, with 30 expediently an upper box 32 on the box space 31 Lower box 33 are located. This arrangement is primarily chosen if the space available is not too large Care must be taken and no reworking is necessary on the upper case. In this case, the landing gear can are also located in the outer area of the traverse carriage, so that the box spaces 30, 31 are not arranged on a cantilever arm are.

In a more space-saving embodiment according to FIG. 4, similar to the embodiment according to FIG a box space 34 for the lower box 35 and

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this and the trough 8 a box space 36 for receiving the upper box 37 provided in an inclined position - so that the bracket required for the upper box when pushing the shaped bale into the trough does not interfere, it engages with advantage from the side on the upper box, for example on its turning pin.

In the embodiment according to FIG. 5, the traverse carriage 5 again has a cantilever arm 11, the lower tier in turn forming a box space 12 for the lower box 13, while in the area the upper step is a box area that is aligned with the ball areas 38 for the upper box 39 is arranged. The upper step only needs to be made so wide that the upper box 39 is securely supported, but otherwise overlaps the lower box somewhat, as far as this allows the necessary reworking there.

Finally, FIG. 6 shows an embodiment as it is in particular when using two molding machines, which therefore only mold the lower box or upper box, respectively. Included can have a molding machine on each long side of the closed Conveyor track 2 be arranged. In this case, the traverse carriage 5 has a box space on both sides of the conveyor track 40 or 41 for the lower box 42 or the upper box 43. In this variant, the box space 4 1 is only occupied between the molding machine and the loading device, since it is there by a lifting and the cross conveyor is removed and fed to the feeder on the other side.

Claims (1)

DR. INC. HANS LICHTI '"dTPL.VnG: Ή EVN'Eä. LIC HTI DIPL. "PHYS. DR. JOST LEMPERT PATENTANWÄLTE D-7500 KARLSR UHE 41 (CROTZINCE N) DURtACHERSTR. 3KH OC H H AUS) TELHKON (07211 48511 March 12, 1982 6370/82-Lj BMD Badische Maschinenfabrik Durlach GmbH Pfinztal Strasse 90
D-7500 Karlsruhe 41 Claims 1. Box molding line for foundries with one in one vertical Level, endless, two-story conveyor track with traverse trolleys, at least two at right angles to the direction of transport Have adjacent places, one of which - a box place - at a loading station from the lower box and added upper box takes up existing mold, which is poured on the upper lane, then onto the lower lane passed on this in the opposite direction to the other The end and there is returned to the upper web, where in an ejection station of the mold bai Ien from the molding box separately and to the neighboring place - a ball area - of the traverse carriage, which may have a U-shaped trough possesses, is pushed off, at the same time the mold bars located there from an earlier work cycle to another bale area next to it or via a -2- '"■' ■. '-. *.: .. 6370 / 82- Lj Unloading station is transferred to an unpacking line, while the empty molding box is separated into top and bottom boxes and these are transferred to the molding machine,
characterized , that each traverse carriage (5) at least one more across the Transport direction next to the Ballan places (9) lying box place (15, 30, 36, 38, 40) and the upper panel (6) between the molding machine (1) and the loading station (25) serves as a core insertion section (24) on which the molded Lower box (13) can be transferred to one (12), the molded upper box (15) to the other box space (15). 2. box molding line according to claim 1, characterized in that the two box spaces of each traverse carriage (5) are arranged directly next to one another and at the loading station (23) of the Lower box (13, 33, 35) on the front (12, 31, 34, 36), the upper box (16, 32, 37, 39) on the rear box space (15, 30, 36, 38). 3. Box-For man I age according to claim 1 or 2, characterized in that that the traverse carriage (5) at the rear box space (15, 36) has an upper box (16, 37) in a sloping position inclined to the rear has holding receptacle (17). 4. Box-For man I age according to one of claims 1 to 3, characterized in that that the traverse carriage (5) has on one side a cantilever arm (11) pulled down in steps, one (12) of the two box spaces (12 or 38) is arranged on its lower level. -ν '; - ":" ν Γ-: V 3-2 0-.9Ί 6 - 3 - 6370/82-Lj 5. box molding plant according to claim 4, characterized in that the other box space (38) on the upper step of the cantilever arm (11) is arranged approximately in alignment with the ball places (9). ■ 6. box molding line according to claim 5, characterized in that the step-shaped cantilever arm (11) is designed so that upper boxes (39) and lower box (13) partially overlap one another in their position on the box spaces (38, 12). 7. box molding line according to one of claims 1 to 4, characterized in that that the step-shaped cantilever arm (11) at the transition (14) from the upper to the lower step the other box space (15) with the receptacle (17) for the inclined mounting of the upper box (16) having. 8. Box-For man I age according to one of claims 4 to 7, characterized in that the rails for the traverse carriage (5) of the upper track (6) are offset from those of the lower track (7) to the side of the step-shaped cantilever arm (11). 9. K as ten-For man I age according to one of claims 4 to 8, characterized in that that for the step-shaped cantilever arm (11) of the traverse carriage (5) of the lower track (7) one next to it at ground level located rails arranged channel pit (19) provided is. - 4 - 6370/82-Lj 10. box molding line according to claim 1, characterized in that each traverse carriage (5) has a box space (40, 41) on both of its sides and the ball spaces (9) in between, and that the conveyor track (2) is assigned an upper box molding machine on one of its long sides and a lower box molding machine on its other longitudinal side is, wherein at the loading station (25), the upper box (43) transferred to the other long side and to the one located there Lower box (42) are added. 11. K as ten-For man I age according to one of claims 1 to 10, characterized characterized in that each traverse carriage (5) has its own drive. 12. K as ten-For man I age according to one of claims 1 to 11 wherein on of the upper track at the loading station are placed on the upper box of the complete form weighting iron, characterized in that that at the supply station (25) one of the complaints from the poured molds (20) passing them on the lower track (7) and transferring them to the upper track (6) Facility is provided. 13. Box-For man I age, in particular according to one of claims 1 to with traverses moving on a track as a means of transport, have at least two places lying next to each other transversely to the transport direction, one of which - a box place - on one Loading station the form consisting of the lower box and the added upper box, the other - a ball area - with if necessary a U-shaped trough, one separate from the molding box ■■■ ■ ;. : Ύ "\ <:: · - '. 32ο9τ6 - 5 - 6270/82-Lj Picks up the mold ball, with the finished mold on part of the Web is guided along a casting route, while the subsequent part of the web is used as a cooling route for the cast Molds or for the mold balls, characterized in that each traverse carriage (5) has a stepped side on one side downwardly drawn cantilever arm (11), on the lower step of which the box space (12) for receiving the molded lower box (13) is arranged, and at the transition (14) from the has a further box space (15) from the upper level to the lower level, with one after the molded upper box (16) rear inclined inclination receiving holder (17), wherein the part of the web (2) lying in front of the feed position (25) is arranged next to one another on the upper and lower boxes (16, 13) are used as a core insertion section (24).