EP0849019A1 - Transportsystem für kastenlose Formen und Formen mit Kasten - Google Patents

Transportsystem für kastenlose Formen und Formen mit Kasten Download PDF

Info

Publication number
EP0849019A1
EP0849019A1 EP97500216A EP97500216A EP0849019A1 EP 0849019 A1 EP0849019 A1 EP 0849019A1 EP 97500216 A EP97500216 A EP 97500216A EP 97500216 A EP97500216 A EP 97500216A EP 0849019 A1 EP0849019 A1 EP 0849019A1
Authority
EP
European Patent Office
Prior art keywords
carriages
motes
carriage
sand
moulding machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97500216A
Other languages
English (en)
French (fr)
Inventor
Inaki Goya Arcelus
Miguel Cle Nogueras
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inversiones Iglor SL
Original Assignee
Inversiones Iglor SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inversiones Iglor SL filed Critical Inversiones Iglor SL
Publication of EP0849019A1 publication Critical patent/EP0849019A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
    • B22C11/10—Moulding machines characterised by the relative arrangement of the parts of same with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • B22D33/005—Transporting flaskless moulds

Definitions

  • the invention relates to a sand mote or mould conveying system, which is clearly designed to convey the sand motes obtained in a moulding machine to the drawing area, after the sand cores have gone through the respective coring, molten metal casting and cooling areas, the motes being conveyed by means of carriages travelling on wheels, in such a way that the motes move forward, pushed by the ejecting cylinder in the moulding machine, mounted on the carriages.
  • the object of the invention is to prevent the sand motes from being rubbed, worn and even damaged as they travel up to the drawing area, after leaving the moulding machine.
  • the conveying line will be longer or shorter, depending on the type of parts produced and the cooling needs, but the size of these installations will be substantial without exception, for a large number of moulds must be conveyed at a time.
  • the sand moulds remain at all times within a metallic so-called moulding box, in which the above-mentioned operations are carried out, namely producing the mould as such, casting the molten metal and cooling as appropriate.
  • a large number of moulding boxes will be required, above all due to the long cooling times required.
  • moulds are called "motes", arranged on a conveying line and handled directly throughout the manufacturing process.
  • moulds without boxes of this kind leave the moulding machine pushed by an ejecting cylinder, which concurrently results in the whole line or row of motes located in the conveying installation being pushed and displaced.
  • the ejecting cylinder pushes the recently-produced mote out of the moulding machine and the latter mote in turn pushes the last mote in the row and so on and so forth, causing the entire row to travel stepwise.
  • the ejecting cylinder draws out a new mote, it pushes the entire row of motes in the conveying installation one step beyond.
  • German patents numbers DE 4319078 and DE 442353 which describe a mote conveying system based upon a pusher ending in a plate-press, the system being complemented with a second plate-press that turns about one of its top ends, and upon the mote being obtained, the second plate is lowered turning about its articulated end, whereupon the first plate-press pushes the mote obtained, moving it right up to the line or row of motes, pushing and causing the entire row to move forward.
  • European patent number 0 693 337 describes another system or type of installation using galloping beams to move the row of motes forward, but the system is very expensive because of the large size the installation has to have.
  • the motes can thus be more easily displaced than in traditional systems, potential wear due to friction being moreover eliminated.
  • the comb-like platforms constitute supports for the motes, at the starting and arrival areas, at which areas of the conveying installation the actual carriages have to be handled in order to be lifted and take up their position, in the first case, and be lowered back to the return line, in the second case.
  • the top surface of the carriages, where the motes are received, is designed with a shape complementing the combs, and said carriages have therefore been provided with top projections that define grooves between them, respectively complementing the openings and ribs of the corresponding combs, and consequently the depth of the carriage grooves must essentially match the height of the profiles forming the comb, in order for the surface of both elements to lie flush with or slightly surpassed by the carriage projections, thereby for the motes to lie at all times at such starting and arrival areas on the longitudinal projections, i.e. on the carriages.
  • the carriages travel in a closed circuit on two levels, and thus the carriages on the top level move forward from the moulding machine up to the drawing area, conveying the motes resting thereon stepwise, whereas on the bottom or carriage return level, as the carriages arrive at the drawing area, they move back empty to the starting area of the conveying line, where the moulding machine is located.
  • Two hydraulic cylinders are provided at the exit point from the moulding machine to push the last carriage, once the relevant motes are lying on it, until it contacts the row of carriages, being perfectly backed to it and preventing gaps from arising between successive carriages in the row. These cylinders might optionally, if necessary, assist the cylinder ejecting the motes to convey the top line of carriages.
  • another cylinder is provided at an area right before the drawing area, which engages the first carriage in the row and places it on the lowering area, where a third cylinder, lying on a lower level, pushes this carriage, once it has been lowered, towards the return line, a further cylinder being provided at the starting area, likewise on a lower level, to place the first carriage on the return line on the relevant lifting device.
  • the said mote conveying carriages have rims, specifically two rims at their rear area or edge, acted on by the two cylinders pushing the last carriage, and a rim on the front of the carriage, acted on by the cylinder that places the first carriage on the lowering device, the cylinder placing the first carriage on the lift and the cylinder pushing the row of empty return carriages.
  • Figure 1.- Is a side elevation representation of the installation constituting the sand mote conveying system made in accordance with the object of the invention.
  • Figure 2.- Is a plan view of the installation shown in figure 1.
  • Figure 3.- Is a larger-scale side elevation view of what is deemed to be the starting part or front of the installation in which the moulding machine is located.
  • Figure 4.- Is another larger-scale side elevation view of the rear or drawing area.
  • FIGS 5, 6 and 7.- Are three different views of the carriage constituting the element for conveying the motes.
  • Figure 8.- Is a sectional view along line A-A of figure 1.
  • Figure 10.- I is a section along line C-C which is also shown in figure 1.
  • the conveying system or installation subject of the invention can be seen to comprise a general structure or frame (1) located at the exit point from the respective moulding machine (2), the installation being designed for conveying the sand moulds or motes (3) obtained in such moulding machine (2), from the machine to the respective drawing area (4).
  • the motes (3) lie on carriages (5) that in turn travel on respective wheels (6) provided in the actual general structure or frame (1) of the installation, being particular in that comb-like platforms (7) and (7') are provided both at each of the exit point from the moulding machine (2) and the point of arrival to the drawing area (4), that enable the motes to be transferred from the moulding machine (2) to the carriages (5) and from such carriages to the drawing area (4).
  • the carriages (5) travel in a closed circuit, with a top line where they support the sand motes (3), conveying them from the point of exit from the moulding machine (2) to the point of arrival to the drawing area (4), and a bottom return line, the moulding machine exit area being provided to have a lifting device (8), comprising a table driven by a hydraulic or pneumatic cylinder (9), that lifts the respective carriage (5) from its bottom or return level up to its position beneath the respective comb (7) located at the exit point from the machine, whereas the area before the drawing area is provided with another analogous device (8') for lowering the respective carriage (5) from the top or conveying line as such to the bottom carriage return line, which is similarly driven by a cylinder, just as the lifting device (8) aforesaid, which devices or tables that in both cases stand as the support for the respective carriage (5), therefore move along guides or vertical columns (10).
  • a lifting device (8) comprising a table driven by a hydraulic or pneumatic cylinder (9), that lifts the respective carriage
  • the same is comprised by a sort of pallet or platform, the top surface of which is provided with a plurality of projections (11) between which respective grooves (12) are defined, whereas the opposite face or underside of the pallet constituting the carriage (5), and particularly what is considered to be the front of such underside, is provided with a rim (13) projecting vertically downwards, the rear of that same underside being provided with two rims (14).
  • the combs (7) and (7') are configured in order to mesh with the projections (11) and grooves (12) of the carriages (5), and figures 8 and 10 show how the respective grooves (12) of the carriages (5) house the respective projections or ribs defined by the combs (7) and (7').
  • the front of the installation at the moulding machine (2) proper is provided with a pusher that may be driven by the ejecting cylinder (15) designed to push the motes (3) stepwise up to the drawing area.
  • the same exit area from the moulding machine is provided with a pair of cylinders (16) lying beneath the comb (7), their rods acting on the rims (14) lying at the rear end of the last carriage (5), moving it right up to the row of carriages in order to avoid gaps being formed between successive carriages in the row of carriages.
  • the cylinders (16) may at times, namely when the installation is very long, assist the ejecting cylinder (15) to convey the top carriage line.
  • Another cylinder (17) is provided at an area before the drawing area whose function will be explained hereinafter, and a third cylinder (18) is provided at the very drawing area, beneath the level of the top carriage (5) conveying row and at the same height as the carriage (5) return line, a fourth cylinder (19) being also provided at such return line, close to the exit area from the moulding machine, whose function will also be explained hereinafter.
  • the pusher is driven by the ejecting cylinder (15) provided at the exit point from the moulding machine (2) and pushes the entire row of motes (3) stepwise, causing the carriages (5), travelling on wheels (6) provided in the general frame or structure (1) of the installation, to move forward, and therefore the cylinder (15) pushes the motes (3) for these to travel at all times lying on the carriages (5).
  • a comb-like platform (7) is provided, arranged at the exit point from the moulding machine, a lifting device (8) being arranged beneath the comb (7) to lift the conveying carriage (5) from the bottom or carriage return level, placing it at and beneath the said comb (7), the openings in the latter meshing with the projections (11) of the carriage (5).
  • a number of longitudinal projections (11) are provided on the supporting surface of the conveying carriages, whose depth matches or exceeds the height of the profiles making the comb (7), the foregoing such that when the lifting device (8) positions the carriage (5) right beneath the supporting comb (7), the ribs of the comb are housed in the longitudinal grooves (12) of the carriage, the surface of both elements lying flush with or slightly surpassed by the longitudinal projections (11) in order for the motes (3) to lie at all times on the longitudinal projections of the carriage (5).
  • the cylinder (15) acting on the last mote obtained in the moulding machine (2) thus also pushes the rest of the row, causing it to move one step forward, the last motes (3) produced being moved and mounted on the carriage (5) rising from the bottom level, and sliding above the comb (7), whereas the remaining motes (3) move forward in their respective carriages (5).
  • a second comb-like platform (7') is provided at the end of the conveying line, i.e. at the point of arrival to the drawing area (4), which allows the motes (3) to be evacuated from the carriages (5) to the drawing area, the motes (3) coming to lie on and slide over the platform in order to enable the carriage (5) on which they lay to be withdrawn, moving thereafter into the drawing area.
  • the motes (7) at this area lie on the comb (7') and on the longitudinal projections (11) of the carriage (5) until the lowering device (8') removes the first carriage (5) in the row from the line, transferring it to the bottom return level, whereupon the motes (3) will lie only on the comb (7').
  • the transfer of carriages between the top and bottom levels takes place by means of the lifting device (8) and the lowering device (8'), which are respectively arranged at the exit area from the moulding machine (2) and before the drawing area (4), which devices (8) and (8') or the tables they constitute are therefore also provided with the respective wheels (6) upon which the carriages (5) travel during their transfer or passage onto the lifting device or the lowering device.
  • Figure 11 shows the moving sequence of the carriages (5), the cycle starting with the cylinders (16) pushing the new carriage (5) right up to the row of carriages and clearing the position it was taking up beneath the exit comb (7) from the moulding machine, the end of the rod of such cylinders (16) acting on the rims (14) of said carriage (15), driving the lot, in the direction marked by the arrows, until the end of the cylinder 17 engages the rim (13) of the first carriage, transferring the latter to the lowering area, as shown at stage (d) of the operating sequence of figure 11.
  • the first carriage (5) is lowered by the respective lowering device (8') and upon the bottom return level being reached, the cylinder (18) acts, through the end of its respective rod, on the rim (13) of said carriage (5), pushing the latter and hence the remaining carriages towards the front area, a new carriage (5) being placed at the lifting device (8), which will lift the carriage until it lies beneath the comb (7).
  • This positioning of the carriage (5) beneath the lifting device (8) is effected by the end of the respective rod of the cylinder (19), the end of such rod engaging the rim (13) of the carriage (5) as such.
  • stage (h) shown in figure 11 which shows the correlative working stages or sequences, from the starting stage (a) to the final stage (h).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
EP97500216A 1996-12-19 1997-12-16 Transportsystem für kastenlose Formen und Formen mit Kasten Withdrawn EP0849019A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9602703 1996-12-19
ES9602703 1996-12-19

Publications (1)

Publication Number Publication Date
EP0849019A1 true EP0849019A1 (de) 1998-06-24

Family

ID=8297096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97500216A Withdrawn EP0849019A1 (de) 1996-12-19 1997-12-16 Transportsystem für kastenlose Formen und Formen mit Kasten

Country Status (2)

Country Link
EP (1) EP0849019A1 (de)
WO (1) WO1998026888A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180595A (zh) * 2016-10-08 2016-12-07 宁国市志诚机械制造有限公司 送箱机和铸造生产系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6035202A (en) * 1997-12-19 2000-03-07 Ericsson Inc. Method and apparatus for locating a mobile unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138578A1 (de) * 1971-08-02 1973-02-22 Bangor Punta Operations Inc Foerderbahn fuer giessformen
EP0693337A1 (de) * 1994-07-22 1996-01-24 Georg Fischer Giessereianlagen Ag Vorrichtung zum Transport von Giessformen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985927A (en) * 1958-10-16 1961-05-30 Herman Pneumatic Machine Co Foundry mold forming apparatus
GB1225529A (de) * 1968-11-09 1971-03-17
US3840066A (en) * 1972-12-29 1974-10-08 R Taccone Conveyor for a flaskless mold line
US3989094A (en) * 1974-01-08 1976-11-02 The Fairfield Engineering Company Apparatus for producing castings from flaskless sand molds
GB2056341B (en) * 1979-08-14 1983-01-12 Bruehl Eisenwerk Casting apparatus
JPS6323870B2 (de) * 1980-03-24 1988-05-18 Oigen Byuuraa
US4422495A (en) * 1981-02-26 1983-12-27 Joseph B. Stinson Co. Mold handling system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138578A1 (de) * 1971-08-02 1973-02-22 Bangor Punta Operations Inc Foerderbahn fuer giessformen
EP0693337A1 (de) * 1994-07-22 1996-01-24 Georg Fischer Giessereianlagen Ag Vorrichtung zum Transport von Giessformen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180595A (zh) * 2016-10-08 2016-12-07 宁国市志诚机械制造有限公司 送箱机和铸造生产系统

Also Published As

Publication number Publication date
WO1998026888A1 (es) 1998-06-25

Similar Documents

Publication Publication Date Title
US4589467A (en) Mold handling system
US2095151A (en) Mold conveyer
NL193638C (nl) Stapelinrichting.
US3408689A (en) Multi-receptacle conveyor and discharge apparatus for dissimilar molded parts
US4411586A (en) Device for delivery of cores
FI61010C (fi) Stapelvaexelanordning
JPH0356306A (ja) 帯状部材の取出し移送装置
US2915202A (en) Timber-stacking apparatus and the like
US3130830A (en) Apparatus for the mechanical handling of billets and the like
EP0849019A1 (de) Transportsystem für kastenlose Formen und Formen mit Kasten
US4040525A (en) Method and apparatus for stacking ingots according to predetermined arrangements
US3989094A (en) Apparatus for producing castings from flaskless sand molds
US6216767B1 (en) Mold handling apparatus
KR20090032764A (ko) 금형 순환식 다중 주조방법 및 그 장치
US4135570A (en) Foundry molding installation for producing boxless sand molds
GB2024762A (en) Stacking
US4094118A (en) Method and apparatus for feeding of rows of blocks
US4588014A (en) Foundry molding apparatus and method
EP0108148B1 (de) Fülltisch in der giesstation einer giesserei
US3267530A (en) Pig casting machine
JP2001198668A (ja) 造型・鋳造ライン設備
DE3109341C2 (de) Vorrichtung zum Fördern und Sammeln mehrerer Reihen von auf Formlingsträgern angeordneten keramischen Formlingen
DE2258873A1 (de) Vorrichtung zum be- und entladen von paletten
KR102292603B1 (ko) 판형 스페이서 이송 시스템
CN210878415U (zh) 一种治具拆分组合装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE DK FR GB IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: CH DE DK FR GB IT LI

RBV Designated contracting states (corrected)

Designated state(s): CH DE DK FR GB IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19981228