DE1805163A1 - Centrifugal casting device and method for producing centrifugal casting - Google Patents

Description

24 Lübeck, Breite Strasse 52-54 - ^WÜO

Hepworth & Grendage! Limited, Bradford 4 * (England) St. John's Works

Centrifugal Glazing Apparatus and Method of Manufacture Clay centrifugal casting

According to the invention, a Zentrlfugalgießvorrlchtung contains or are adapted to several casting molds, means of moving each fora between a casting station and a casting station, means for rotating a casting mold at the casting station, to carry out the Zentrifugalgusee from a molten metal in the mold and means to dig out a solidified casting from a mold at the ejection station "The casting molds, see a pair of molds & n ₉ aina TorisugST" travel with their axes of rotation are essentially horizontal and can be moved on a circular or partial circular path or a horizontal axis.

After another AuablMuraig of the invention is "ia trifugalgießTerfahren it., Äa3 a Ansahl Umla ^ ifender öl.dßfomen together a'xf a Krslsbalai ICIT koriiäoatalöx ^one axis moves © W0rden _v Urid & was aufeiöandörfolgond isu a Giaßstat.Lon at Jode Forci in U »<IrehuBg Tersetet becomes» uia d »n 3 © ntri: fiigalguß from gösclaolzenom in the form g« f Loasenem .fetauJ. Guiding and moving to an ejection station in it (9n _f at the

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the casting previously formed in the mold is ejected,

An embodiment of the ZentrifugalgießisaBehin © according to the invention is explained at least with reference to the accompanying drawing «, It «seigers

Flg. 1 © In® schematise] * © Looks & ®r machine with part i cut

FIG. 2 shows a section along line AA of FIG. ₀ 1 _O

The machine is made up of a frame 11, in which the frame 11 can be rotated about a horizontal axis in the carrier 12 rbundensare, which is arch-shaped and which forms the rare wnd the dachshund de © Rahmans «Di © Waadimg 15 1st old doors or ΊΜ & ®η around? observation

The wearer boeltet © in © Welle 16 in 3teg @ na 1T ₉ 18 € er conclusion- »na the wave 16 Ja 'öairelraBg su ¥ ers © tg © a wad

zuulassea »« MB si # axially ibegrenat moved w © rd®xi kansie Eia torque drive 19 »the @ & an AbscfcluBwandra & g 14 is mounted» is rotated with U.BT su versetaeade »shaft connection ^ i» - »© with the rotation« wische »aw®if @ stg © l @ gt € 5ia WiÄelstellisagen takes place ₉ and © ine Torrichtwig 20 a» s Syliader und £ olben is mounted on the running meter housing of the unit 19 and connected to the corrugated © 16 to make it opposite the frame feegrena-fc aslal mi move «,

With the shaft 16 a pair of transverse plates 21, 22 is fixed,

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^Γ: '' ■■ ^! "" ■ - '"'■■■" ■■ = ■■■■; ■ ■ '■■''" ■' » * · » ■ mm ^> *>» ■ «■

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They each have a "pair of perforations 23 on diametrically opposite sides of the shaft" and each perforation contains an adjacent lining 23a. The through the Lining-defined perforations in the plate 21 are in line with the perforations in the linings in the plate 22.

When the carrier 12 is in the working position, the center lines of the two aligned pairs of openings and the axis of rotation of the shaft 16 lie in a horizontal plane spaares ^ x ₈ ejection station designated. The wearer deposits a pair of cylinder-eyed ouöieenf onsen 24, 25, and keeps one in each pair of openings between the outside of the fora and the openings on the resulting location, the fora with their ia general hoi'Xaoatal are placed ·

The two ends of the two forms 24 "25 are not conical tapering 26 Tersehtm" At the SinflieSstation are a Pair of cord shears (limbs or! Tinge 27a »28a gate-seen» τοη those dor eiste 27a as a movable Xoons uad the other 28a as fixed cone is inspected · The axes of rotation of this Xo ~ ein aligned and exit the center lines of the «- aligned breakthrough pair 23 ucd lining 23a » calibrated at the cinema and pouring table »

The fcar ^ glioh »Eowis 27a forms part of a genamtanord ·»

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arranged supports 27b or the like. exchangeably mounted _r which are rigidly connected to a base plate 27c »which is mounted on a rotating shaft» driven by an electric motor 29 ». This arrangement and the motor 29 are axially movable with respect to the closure wall 14 of a pneumatic pusher 30. The motor 29 can be stored in suitable guides on the base. The stationary cone 28a is also supported on three supports 28b or the like arranged at the same angular distance. mounted interchangeably _f which are rigidly connected to a base plate 28c 'which is supported by a rotatable shaft which is assigned to an account 13 in a bearing of the Ahschlußwandung and is fixed against axial movement so. The fixed cone 28a, its base plate 28c and bearing shaft have a large-diameter bore, and a tapered ladle 31 for the molten metal to be poured is movably mounted so that its outlet 32 can be advanced through the bore beyond the cone 28a and inclined to let the metal flow into the mold 24 · The cone angles of the movable cone 27a and the fixed cone 28a are such that they work with the conical tapers 26 at the ends of the molds ·

At least the surfaces of the conical rings 27a, 28a that are likely to come into contact with the molten metal during casting, and in particular the conical surfaces and those after

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inwardly facing opposing surfaces are preferred covered with a »deposit of a material which prevents or reduces the adhesion of the cast metal to the conical rings, this covering a.B. from a chrome plate with a board »of 0.0002 cm.

At the ejection station there is an ejector in the form of a disc 34 provided that on the end of the rod of a straight line Drive 35 is mounted and has a diameter which is smaller than the inner diameter of the molds. The smocks » The axis of the disc 34 and the drive 35 has a small distance below the horizontal plane »which through the The axis of rotation of the carrier 12 is placed because the mold 25 rests at this station on the surface of the opening 23 in the transverse plates 21, 22 and is therefore not concentric to the openings. The disc 34 can be substantially on the The entire length of the mold 25 can be advanced to horizontally eject a solidified cast body from the mold. To this Purpose is an opening 36 is provided in the end wall 13, and a platform 37 is arranged on the outside of the end wall for receiving the cast body.

The rod of the drive 35 is hollow and is fed with compressed Iaaft as soon as it loads its rest position and is advanced through the mold »bringing the compressed air into communication with a suitable source of air.

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The interior of the rod is connected with small bores or nozzles 33 on the circumference of the half-eye 34 eo that essentially the entire interior of the mold 25 during the off » WHRfinibes filled with compressed air 1st.

There are adjustable stops provided avoid su that the molds during casting ndt horizontally move the castings · piping stops consist of three ELötsen 39 Stunmelwellen 40 'which are mounted to the aperture 36 about in the end wall 13 "on each Stumnelwelle 40 a double-ended lever 41 is mounted on the outside of the abutment wall, one end of which is connected to the associated hot tub 39 via a stylet arm 42 and the other bath tub is pierced around a selected peg of a view! fixed pin 43 of a plate 44 'which is firmly connected to the end wall 13, to set. It results from the fact that $ edw lever and ^ e aw KlotB can be adjusted in the inclination with certain values 39 41, whereby the distance by which the Klotze protrude, and "was in the room" wipe of the opening 36 and the adjacent end of Fora 25 is set

A liquid logic unit, shown schematically at 33A, 33B is indicated, it is provided in order to determine whether a casting after the Terfestiguqg of the fixed cone 28a

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when pulling out of the mold 24 Ib carrier 12 has released or not. The unit can include an air jet generator 33A and a receiver 33B included, which receives the beam from the transmitter 33A will determine "provided that the casting has correctly loosened. If the beam is disturbed by the casting, the receiver 33B will initiate an appropriate action and will s «B. the continuation of the casting sequence prevent until the error is corrected.

The way in which the machine works is specified in the following described that the carrier 12 has just been twisted, around the form 24 of the two forms in the inflow and pouring Bring station BU.

The carrier 12 is then moved (to the right in the drawing) by the device 20 consisting of the cylinder and piston gatekeeper in order to ensure that the form 24 has the fixed cone 28a overlaps. The entire assembly of the movable cone 27a and the drive motor 29 is then moved forward (to the right in the drawing) to bring the tapers £ 6 at the ends of the mold 24 into engagement with the fixed and movable cones 27a, 28a, and in doing so the mold 24 from the position in which it rests in the carrier 12, moved upwards into a position in which it is concentric with is the axis of rotation of the cones 27a, 28a. The movement of the overall arrangement with the movable cone 27a starts a distortion

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! Weighing device for a short time (half a lake.) » a contact in the circuit at the end of the time delay with motor 29 closes.

The motor 29 is excited and sets the Fora 24 in rotation, where the drive is transmitted as the shape swlschen the fixed and the movable cone 27a »28a is detected, hair dryer which the movable cone 27a is driven by the motor 29. The operator then makes the form τοη hand with a suitable preparation means »which is in the technology is known, done by inserting a sleeve through the bore of the fixed cone 28a and then turning the sleeve over around the processing agent in the circumferential Knock Down Form 24 "

The ladle 31 "which contains the molten metal" becomes then advanced by the operator "leaving the outlet 32 passes through the bore of the fixed cone 28a and the molten metal is poured in. The spout 32 is then sucked back »and this activity sets a time setting« - direction in Gtang »which is set in such a way that it has a time for the solidification of the metal. Alternatively, the operator can manually adjust the side adjustment device using a Set the push button in motion.

At the end of the set time "after the metal has solidified" the motor 29 is automatically stopped and a "

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ne magnetic brake switched on. The movable cone 27a and the motor 29 are then retracted by the pneumatic ram 30 and the support 12 is "eurückbewegt through the device 20 aua cylinder and piston to zn ensure 'that the mold 24 το" solid cone 28a is completely free. This allows the fora 24 containing the casting to move downward and rest on the undersurface of the opening in the chucks 25a of the plates 21 »22 of the carrier 12»

A lock is provided "to ensure" that the movable cone 27a is not moved back until the rotation has stopped. In addition, the logging direction ensures 33A »53B that the casting itself τοπ the fixed cone has freed. If this does not happen, the next stage of work cannot take place.

De *; ¹ Carrier 12 is then rotated by the torque unit 19, then bring the mold 24 into the etching station, ie into the position in which the mold 25 is shown in the drawing. The arrival of the mold 24 at this station activates a second tent setter (eB by sleeping a switch) which allows a brief cooling period for the casting at the ejection station to contract away from the mold 24 prior to ejection.

TJn bor the control of the ssweitea Äeiteinstellvorrichtung

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the ejector 34 is moved outward by the drive 35 to eject the solidified casting at the ejection station between the blocks 39 and through the opening 36 in the end plate 13 of the frame from the mold 24 onto the platform 37, from which it is operated by the operator is removed. The mold 24 is prevented from moving towards the opening 36 during ejection by the mold striking the flange surfaces of the blocks 39. Compressed air is ejected through the nozzles 38 on the periphery of the ejector disk 34 simultaneously with the advance of the ejector to clean the interior of the mold 24, and then the ejector 34 is retracted.

The carrier 12 is now free to rotate to the shape 24 in the starting position at the inflow and pouring station back « (this is the position in the di <5 form 24 in Fig. is shown)

Since the cones 27a, 28a are coated with chrome, the Casting metal does not adhere, the likelihood of the solidified casting sticking to one, cone, or both becomes Cones switched off or reduced. Since, moreover, the cones are designed as rings and at a distance of the associated base plates 27a, 28a by supports 27b, 28c are mounted, cooling air can circulate freely around these components, thereby essentially reducing the harmful transmission of the

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Hltee τοπ the Fora eu is reduced to the waves that the Carrying base plates and their associated bearings.

The device described is particularly compact because the Shapes move on a circular path between the stations. It can be operated continuously and automatically and allows the production of castings in large quantities ssu · The ejection of the finished castings onto the platform 37 night the door direction for installation in an automatic System or in a production line.

The device can quickly mold different diameters? ' are adapted by exchanging the cones 27a, 28ε for zones of different sizes and by replacing the lining 23a with lining in different dimensions, that is, an inner circumferential diameter that is somewhat larger than the outer diameter of the replacement forms, so that the shapes follow the other thermal: *. Expansion tßlwimä. atm pouring no connection ait IeHi lining in more detail.

The Koiprig de; -. * Slötss 39 a *. the AwvtfdFfstatlon. Tcarm are positioned in such a way that their radial® »inner» fipits. towards the ends of the first & tssf (xemra mim intervention succeeded but that they do not extend into the dia Xfthiü. of the cast body during the operation of the Yoi ^ direction the taking and the advice of the forms what by

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the breakthrough 36 is effected, brought to swing.

It is understandable that the arrival in form at the Au® ~ weristation on the same side according to the operated version yes with the arrival of the other Pom at the inflow- «Bd 8ieS ~ station takes place. Thus the © Feig © der flitdet. Work process® on the answer station g! © icias @ itig With the follower ge e.® dar Eiisfli © ß- »mid GieBstation instead«,

Obgl © ieh di © bessliPiebeiae llaßch.t £ i € ä sswei Foi ^ saea 24 »25 on ™ shows> eats QS self-evidentS ^ ilichp clai5 d @ r Träges ⁶ 12 ß * B ₉ for di * © Asaon ^ laasag tojjJ. t ± @ j? Pa @ r- <m fluclitiiiSidos · Diarabibr ^ d ^ Äiiagan equipped werdoa toauap di «^ © © iii« Fqhi £ jfestütsea _e Bei @ ia @ i? such Ayientoimg Mtoitea di «£> tation @ n Mt

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the influence, Qßst

mxtzt weMeB _f ι «& iia @ M, felp®rl © d @ for the casting Tormioete © ii _e A ^ i dies © ¥ cdsö kosna ^ n at the Siafli © ß ™ isiad AusR ^^ i ^ batien h @. EwUaschtesift ^ lls came to the EiiifllöBea d © sg sien metal and the IMLauf «ier Fora suy DurohfUbmiiig des TriJPugßlgussoc aa ^ ersoMedtmsn St £ ition @ a © ssstead carried out at the same stations

Although the Ff @ il (»i in B'ig *. 2 © r gives me.

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the carrier revolves around me in one direction, ».B. in the sense of a donor, the wearer can also go in the most opposite direction twisted or sirisch the stations gate and curück echwingtn.

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Claims (1)

Dr. Hugo Wücken Dipl.-ing. Thomas VVilckerv Oct 22, 1968 Patent attorneys 24 Lübeck, Breite Strasse -52-54 long-distance call 7 58 # 8 Hepworth & Gr & n & agc Limited ₉ Bradford 4 ₉ St. Joto's ¥ orks Claims o this means isua B © weg @ s ^ ed © r For® between a GiföBstsLtion wad © inör Avisw @ rf station, this means mm © iiaer 6IeSi arm at the Gi®ßstati © n si.ai * des ^ © sits »if? Ji, .falg * iss © f» von gescSmol ^ en ^ i !! © tall la Fox® miss. diaroh llitt ©! suia A «sweri '© n. © in®s © rtitarrfc © ": piece from the form of the Aiisw © rfStati 2 «TorrlcSitimg aaeli Aiisprueh 1 ^ daöurch g @ ke-sisi ^ © ichsi © t die Gi @ ßför »i © n 'M, w.WAgBW®i & ® goiaeimsöii a fe®: lgföKaig © a Baiha iswrlsehen dmn Stat di © Gi @ ilf £? i «© a iwangs ^ eiso © ntleiag dsj. ⁴ t TOFdrsfeMiWA Tf € gor ₉ eggs the Forssss afostttsst, moved UQr whereby the dl® DrefeEChsioa tier foils xs®d des Traf © rs in general @? I © :. I. parallel » 4. YoxTiofatimg according to claim 3 »thereby igeikesinseiuhontt, dall - 2 909821/0810 BATH ORIGINAL the carrier is provided with openings in which the Casting molds lie loosely like a cradle. 5. Gate direction according to one of the preceding claims, characterized can be removed by proppants at the casting station Support of a pouring fora at each end and by a drive «About rotating circulation of the proppant and thus the To shape. 6. Gate direction according to claim 5 »characterized in that the support means consist of a» pair of members, each of which has a conical surface »which cooperates with a corresponding cone of the fora, the conical members being relatively slidable into one another« around the fora between them elnsuklexseen and absurdities. 7. Gate direction according to claim 6 in connection with claim 4 » characterized in that the axis of a shape according to weighf Öm: lie in the 'carrier at the casting station under & lh the axis of rotation of the Ko & usgließer, with oils Eowus- of the so separators νχιά the foris after the inclusion of the M £ Ui3ai '£ i9n work, uiad dia form from the contact with d <5Si carrier: ln eiJi © position asifeeben in which the axons are pelted. 909821/0810 SAD 8. The device according to claim 7 »characterized in that the first of the conical members is coupled to the circumference of the mold with an electric drive motor ₉ while the second © conical member is axially fixed» but is freely rotatable, 9. gate direction according to claim 8, characterized in that the first conical link and its drive motor by means of a » Nes hydraulic ram are reciprocable to the first conical member relative to the mold and the second Konusglled to advance or retract axially. 10. Gate direction according to claim Θ or 9 »characterized in that that the wide conical © link with an axial through-IaB is provided and the means are provided to Pour the molten metal into a mold while it is being turned sai let, and «was at the pouring station by the Read through 11. Goal direction after one of the Aaspiüch © 8 "to 1O ₉ thereby characterized that the carrier opposite the second cone member axially movable back and forth iot »tu® a casting mold» die. at the casting station through the carrier as present is | to advance in relation to the second Eonis member and - 4 -909821/0810 ßAD ORIGINAL 12. Device according to one of claims 5 to 11 »thereby characterized »that means are provided between the stanchion means and the bearings which rotatably mount the support means are that reduce the heat transfer from the support means to the bearings during operation of the device. 13. The apparatus of claim 12 in conjunction with one of claims 6 to 11, characterized in that each conical member consists of a ring which is supported on a Base plate is releasably attached, the supports holding the ring from its associated base plate at a distance. H. Device according to one of claims 6 to 13, characterized characterized in that at least those surfaces of the proppant which are exposed during casting with the molten Metal come into contact, are covered with chrome. 15. Device according to one of claims 3 to 14, characterized characterized in that the carrier supports two molds located generally on opposite sides of the Axis of rotation of the carrier are diametrically opposite. 16. The device according to claim 15, characterized in that that the carrier consists of a shaft mounted in the frame of the device, about whose axis the carrier can be rotated, further from a pair of transverse plates, which are fixed at a distance on the shaft, each plate with a pair of through 90982 ^ / ^ 810 BATH ORIGINM. refractions on diametrically opposite sides of the shaft is provided, with di @ Diirchbraehungen a plate with align with the openings in the other plate and each Opening a detachable annular covering or a Contains lining. 17 · The apparatus of claim 15 or 16 "characterized in that the casting and _p are ejecting station arranged in a common horizontal plane ^ sows. 18. Gate direction according to one of the preceding claims "da" characterized by ₉ that an ejector ram is provided at the eject station "which enters the one Ead © of a casting mold" as soon as it is at this station to eject a solidified cast body, with stops are provided to prevent displacement of the casting mold with the cast body during ejection . 19 * Device according to claim 18, characterized in that several attacks are goalscoring »the iss. the Eside the form arrive jsuia engagement which nüter at which the plunger enters the end geg & ₉ woböi di · limit stops üb the mold around spaced \ ma vobei the distance "wipe the stops and the axis of the F ©» is eiastslltor " 20. The device according to claim 19 *, characterized in that that its frame is provided with an opening "through 9098JJ / 0810 BAD ORJGiNAl. 180Si63 the cast bodies are ejected from the device, wherein the stops in the frame around the opening for oscillating movement towards and away from the axis of the casting mold are stored, the stops extending sswischen the shape and the opening. 21, gate direction according to one of the preceding claims for the automatic Repetitive operation, characterized in that the device includes control means to regulate the duty cycle synchronize and control the various components of the device. 22.Vorrichtung according to claim 21 in conjunction with claim 9 characterized by means responding to the casting at the casting station, which can be activated and are able to to prevent rotation of the carrier after a solidified cast body has adhered to one of the conical ones Limbs is determined. 23. The device according to claim 22, characterized in that the response means from «iner liquid logic unit consist of an Luftgebar and an associated receiver contains, whereby the receiver is shielded from the encoder is, if not sin the distance between, the fixed Eonusglifcd and the mold or a solidified therein Cast body is present. 909821/0810 BATH ORIGINAL j ο * »η ι α λ ei ι _ Ji.η η η "ΐ, ^ η τ η η .--. .ιί'ΐν τι - * ηο9 βπ » 24 · Ancestors aur Eerrtollung του Zontrlbfalguß, thereby known that nohrer «goaelneam on a Xreiabehn with horizontal axis · rotatable Oießforoon are moved one after the other into a casting station, at which each mold » In Uotrehung tersetit vlrd, in dos Zentrlfugalguß dos In the distant-flown / geacheolÄen metal by centrifugal casting from usetsen, and then to an alluvial-throwing station moves north »at the rorher In dor Fora cast bodies were ejected. 25 Method according to claim 24 »marked thereby» that the casting molds on the Kreiabahn are filled with a bag from a Tröger, each font being captured at the casting station on opposite sides, from the system with the dome Carrier is raised, its axis of rotation is set in rotation, while the molten metal through one end the shape is brought in so that the rotation is stopped and the shape is reset on its support becomes j before the carrier passes into the ejection station. 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