EP0123033B1 - Halteeinrichtung für Gussstücke in Gussputzanlagen - Google Patents

Halteeinrichtung für Gussstücke in Gussputzanlagen Download PDF

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Publication number
EP0123033B1
EP0123033B1 EP84101448A EP84101448A EP0123033B1 EP 0123033 B1 EP0123033 B1 EP 0123033B1 EP 84101448 A EP84101448 A EP 84101448A EP 84101448 A EP84101448 A EP 84101448A EP 0123033 B1 EP0123033 B1 EP 0123033B1
Authority
EP
European Patent Office
Prior art keywords
supporting device
casting
gripper part
supports
holder
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.)
Expired
Application number
EP84101448A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0123033A1 (de
Inventor
Martin Weis
Adolf Scholz
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.)
BMD Badische Maschinenfabrik Durlach GmbH
Original Assignee
BMD Badische Maschinenfabrik Durlach GmbH
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 BMD Badische Maschinenfabrik Durlach GmbH filed Critical BMD Badische Maschinenfabrik Durlach GmbH
Publication of EP0123033A1 publication Critical patent/EP0123033A1/de
Application granted granted Critical
Publication of EP0123033B1 publication Critical patent/EP0123033B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/083—Transfer or feeding devices; Accessories therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S294/00—Handling: hand and hoist-line implements
    • Y10S294/902—Gripping element

Definitions

  • the invention relates to a holding device for castings in casting systems with at least one pincer-like casting holder rotating around a horizontal or slightly inclined axis with two gripper parts, of which the lower one serves to support at least one casting, the upper one serves as a clamping member for clamping the same.
  • Conveyors with such pliers-like casting holders are known (e.g. DE-PS 25 10 827, DE-OS 26 13 717). They are primarily used to clean individual large castings, such as engine blocks or the like, which have a large number of recesses, cavities, niches, etc. and consequently have to be blasted from all sides and at several angles in order to effectively loosen and remove the sand residues remove. Such castings are therefore not only moved in a single direction of movement by a casting cleaning system, but are also intensively exposed to the cleaning jets by additionally rotating the casting holder. It is known that the axis of rotation can be arranged horizontally or slightly inclined. At the same time, the rotary movement ensures that loosened molding sand can fall off and unprocessed areas can be exposed to the cleaning jet. This also ensures that blasting media cannot deposit in niches, cavities, etc.
  • the invention has for its object to further develop a holding device of the structure described above in such a way that castings with deep cavities and complicated shaping can be blasted effectively and in a reasonably short time without manual rework being necessary.
  • the object of the invention is achieved in that the lower gripper part has at least two strip-shaped supports for at least one casting and the supports thereby receive the casting in an angular position to the axis of rotation, with at least one support on each side of the axis of rotation and in the same Angle to this is arranged.
  • the castings While in the known devices, the castings are aligned in the direction of one of their axes, usually the longitudinal axis, and in this position are gripped by the pliers-like casting holder, they are received in the configuration according to the invention in an inclined position to the axis of rotation, so that they rotate with the pliers-like casting holder perform a kind of wobble movement and are consequently exposed to the cleaning jet at constantly changing angles.
  • the supports are strip-shaped, but can also be punctiform or linear.
  • the inclined position has the further advantage that two larger castings can be accommodated at the same time by a casting holder by arranging them with their longitudinal axes in a parallel inclined position.
  • the lower gripper part has at least two further, preferably strip-shaped supports, which are arranged at the same angle and at approximately the same distance from one another as the two first, preferably also strip-shaped supports on both sides of the axis of rotation, however are offset from the free end of the gripper part.
  • the castings are thus taken up in a position parallel to one another and in the same inclined position to the axis of rotation.
  • the aforementioned embodiment enables the one support of the first pair of supports arranged on one side of the axis of rotation to be integral with the one of the other pair of supports arranged on the other side of the axis of rotation. This makes the design of the supports and the lower gripper part particularly simple.
  • the upper gripper part has at least one pendulum-suspended beam, via which the clamping force is transmitted to the casting in the clamping position of the casting holder.
  • the bar preferably runs at an angle with respect to the axis of rotation, which corresponds approximately to the angle of attack of the supports on the lower gripper part with respect to the axis of rotation. Furthermore, the bar is advantageously arranged between two supports.
  • each pair of supports on the lower gripper part is advantageously assigned a pendulum-suspended beam on the upper gripper part, so that the aforementioned advantages are retained for each cast part.
  • this embodiment is preferably modified in such a way that the two bars are suspended from the ends of a common beam, which in turn is suspended from the upper part of the gripper. This ensures, for example during a pivoting movement of the upper gripper part, that both castings are securely gripped regardless of its angular position in the clamping position. Differences in height between the two castings can also be compensated for by this design without any impairment of the clamping force.
  • the supports and / or the beams are comb-like on their sides adjacent to the casting, the tines thus formed advantageously ending in blunt cutting edges.
  • the surface of the casting which is covered by the supports with respect to the cleaning jet is limited to the smallest possible extent, so that the cleaning jet hits the casting on its entire outer surface almost unhindered. Furthermore, this training ensures that loosened molding sand and used abrasive can fall off unhindered.
  • the vibrating device has a roller block or a sliding surface and the tong-like casting holder have a tread, by means of which it rolls on the roller block or the sliding surface during the rotational movement.
  • the tread can, for example, be designed as a rotationally symmetrical race for the rotational movement of the tongs-like casting holder, which surrounds the gripper parts of the casting holder at a distance and is supported on the supporting structure of the casting holder via struts.
  • the race can also be attached to the lower gripper part via struts.
  • the diameter of the race must - depending on the location of its attachment - be such that it leaves enough space for the opening width of the pincer-type casting holder there.
  • the lower gripper part which is generally fixed, and the struts of the race are fastened to a common support plate, which are connected to the support structure of the pliers holder with the interposition of vibration dampers.
  • the same measure serves the further measure that the self-aligning bearings of the beams or the common beam are vibration-damped with respect to the upper gripper part, which generally carries out the opening movement of the tong-like casting holder.
  • each casting holder has a clamping drive 6 for the upper gripper part 5, which is located within the carousel, and a rotary drive 7, by means of which the tong-like casting holder is driven in rotation around a horizontal axis.
  • the cleaning booth 1 has several chambers or stations which can be seen in more detail in FIG. 2.
  • the first station 8 is designed as a loading station, where the castings to be cleaned are fed and inserted into a tongs holder which is in the ready position.
  • the next station 9 serves, for example, as a lock and shields the following beam stations 10 from the surroundings.
  • the last blasting station 10 is followed, in succession, by two stations 11, in which the blasting medium which is still in the casting and, above all, is deposited in cavities is emptied.
  • the last station 11 is again designed as a lock. This then follows - lying next to the loading station 8 - a station 12 for unloading the castings.
  • centrifugal wheels 13 are arranged in the ceiling of the cleaning booth, to which the blasting medium is fed via a distributor 14.
  • the used abrasive leaves the cleaning booth 1 on its underside and passes through conveyors 15 and screening devices. which separate the molding sand from the blasting agent, via an elevator 16 back to the distributor 14.
  • vibrating devices can, if necessary be ordered, which are provided with a roller block, on which the rotating, pincer-like casting holder 3 rest and roll during their rotational movement.
  • each casting holder has a lower, fixed gripper part 4 and an upper gripper part 5, which performs the clamping movement. They sit on a housing-like support structure 17, which is driven by a shaft 18 guided through the wall of the cleaning booth 1.
  • a labyrinth seal 19 is arranged on the passage of the shaft 18 through the wall of the cleaning booth 1, which prevents the passage of blasting media.
  • a drive (not shown in detail) for actuating the upper gripper part 5 is guided through the hollow drive shaft 18.
  • the upper gripper part 5 essentially has two adjacent bars 20 (FIG.
  • the upper gripper part 5 can thus be moved up or down by a certain angle from the horizontal position shown in FIG. 3, the upper position being used for inserting the casting into the pliers-like holder. From this position, the upper gripper part 5 then executes its clamping movement against the casting.
  • the upper gripper part 5 has two clamping beams 22 arranged one behind the other, which are suspended in pendulums 24 on brackets 23.
  • the tabs 23 are in turn attached to an arm 25 of a beam, which in turn is suspended on the crosspiece 21 of the upper gripper part 5 in an oscillating manner.
  • the bearing 26 of this common beam 25 is, as schematically shown in FIG. 4, equipped with a vibration damper.
  • the two bars 22 have a comb-like, possibly stepped profile on their side facing the lower gripper part. While the axes of the bearings 24 of the clamping beam 22 are arranged obliquely to the axis of rotation of the casting holder, the bearing axis of the common beam 25 runs perpendicular to the latter.
  • the lower fixed gripper part 4 consists of two upright flat iron 27, which run parallel to one another and are initially arranged at the same distance on both sides of the axis of rotation of the casting holder. At their front end 28, the strips are angled to one side, but still in a parallel position to one another.
  • Two rear supports 29, 30 are attached to the upright strips 27 at an angle to the axis of rotation. At a distance from it and at the same angular position with respect to the axis of rotation, two further supports 31, 32 are arranged at a distance from one another in the front region of the lower gripper part 4. The arrangement is such that one support 30 of the rear pair of supports is integral with the support 31 of the other pair of supports arranged on the opposite side of the axis of rotation.
  • the supports 29, 30, 31 and 32 are, as shown in particular in FIG. 3, comb-shaped, the upstanding tines 33 ending in blunt blades 34.
  • the individual beams 22 arranged on the upper gripper part 5 are each arranged between the supports 29, 30 and 31, 32 on the lower gripper part and, as shown in FIG. 4, run at the same angle with respect to the axis of rotation of the pliers-like casting holder.
  • the pincer-like cast piece holder has a running surface which lies against the rolls and by means of which it rolls on the rolls during the rotational movement of the cast piece holder.
  • the tread is formed by a circular race 35, which is supported by struts 36 on the housing 17 or by struts 37 on the lower gripper part.
  • the diameter of the race 35 is dimensioned so that the gripper parts can carry out their opening movement unhindered.
  • the struts 36 like the upright strips 27 of the lower gripper part 4, are fastened to a support plate 38, which in turn is connected to the housing 17 via vibration dampers 39.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Cleaning In General (AREA)
EP84101448A 1983-02-26 1984-02-13 Halteeinrichtung für Gussstücke in Gussputzanlagen Expired EP0123033B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833306857 DE3306857A1 (de) 1983-02-26 1983-02-26 Foerdereinrichtung fuer gussstuecke in gussputzanlagen
DE3306857 1983-02-26

Publications (2)

Publication Number Publication Date
EP0123033A1 EP0123033A1 (de) 1984-10-31
EP0123033B1 true EP0123033B1 (de) 1988-03-02

Family

ID=6191959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101448A Expired EP0123033B1 (de) 1983-02-26 1984-02-13 Halteeinrichtung für Gussstücke in Gussputzanlagen

Country Status (3)

Country Link
US (1) US4688586A (enrdf_load_stackoverflow)
EP (1) EP0123033B1 (enrdf_load_stackoverflow)
DE (1) DE3306857A1 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017677A1 (de) * 1990-06-01 1991-12-05 Schlick Roto Jet Masch Zusatzvorrichtung fuer eine schleuderstrahlanlage zur entfernung des strahlmittels bei grossen werkstuecken
US5609171A (en) * 1996-02-13 1997-03-11 Kuo; Fu-Chin Lipstick molding mold cleaning apparatus
US6526999B2 (en) * 2001-04-30 2003-03-04 Joseph J. Tebbe Random high pressure water jetting nozzle for cleaning castings
GB2514736A (en) 2012-03-11 2014-12-03 Airway Medix Sp Lka Z O O Oral care system method and kit
CN103878701B (zh) * 2014-03-27 2015-12-30 辽宁澳深低温装备股份公司 一种抛丸机
FR3078276A1 (fr) * 2018-02-23 2019-08-30 Safran Aircraft Engines Outillage de decochage d'une grappe de pieces de fonderie a cire perdue
CN113547104A (zh) * 2020-04-24 2021-10-26 邓超 一种复杂内腔铸件的振动除芯装置
CN114260234B (zh) * 2021-12-17 2022-12-27 新昌县海博科技股份有限公司 一种转笼式清洗机及其清洗方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE233219C (enrdf_load_stackoverflow) *
DE296674C (enrdf_load_stackoverflow) *
US837559A (en) * 1905-11-06 1906-12-04 Lozelle F Graham Fruit-washing machine.
US1494436A (en) * 1921-09-12 1924-05-20 Willard Storage Battery Co Clamp for use in coating battery boxes and the like
US1453045A (en) * 1922-02-13 1923-04-24 Vorm Adolf Finze & Co Ag Chuck jaw
US1578816A (en) * 1925-07-17 1926-03-30 Eifried Petar Combined pot and lid lifter
US2078848A (en) * 1936-03-21 1937-04-27 Greger Joseph Clamp
US2319501A (en) * 1940-08-02 1943-05-18 Jenkins Bros Testing equipment
US2780229A (en) * 1953-02-16 1957-02-05 Udylite Corp Work-handling apparatus for treating hollow articles
US2926675A (en) * 1956-04-18 1960-03-01 Ajem Lab Inc Cradle apparatus for power washing equipment
US2991791A (en) * 1957-06-21 1961-07-11 Procedes Rovac Automatic apparatus for electrolytic processing and the like
US3382844A (en) * 1964-07-01 1968-05-14 Lasalco Inc Work treating apparatus
US3391678A (en) * 1967-04-03 1968-07-09 Philip G. Luckhardt Motive power system
US3370879A (en) * 1967-05-25 1968-02-27 Textron Inc Connecting means for fruit harvester
US3885825A (en) * 1971-12-20 1975-05-27 Owens Illinois Inc Article handling chuck
US3967946A (en) * 1972-12-15 1976-07-06 Emhart Corporation Mold holder arms for glassware forming machine and method of operating the same
DE2444172C2 (de) * 1974-09-16 1983-01-20 Otto Dürr Anlagenbau GmbH, 7000 Stuttgart Anlage zur Oberflächenbehandlung von Werkstücken
DE2510827C2 (de) * 1975-03-12 1977-02-24 Badische Maschf Gmbh Foerdereinrichtung fuer zylinderbloecke oder aehnliche werkstuecke durch eine schleuderstrahlanlage
DE2613717A1 (de) * 1976-03-31 1977-10-06 Berger Maschf Gmbh Schleuderstrahlvorrichtung zum allseitigen reinigen von vielflaechigen werkstuecken
CH638414A5 (en) * 1979-04-04 1983-09-30 Fischer Ag Georg Method and apparatus for emptying workpieces containing cavities, in particular castings
US4448405A (en) * 1981-07-06 1984-05-15 General Electric Company Versatile gripping device
DE3145316A1 (de) * 1981-11-14 1983-05-26 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe Transportmittel fuer gussstuecke
US4456293A (en) * 1982-08-24 1984-06-26 International Business Machines Corporation Article gripping apparatus

Also Published As

Publication number Publication date
US4688586A (en) 1987-08-25
DE3306857C2 (enrdf_load_stackoverflow) 1990-11-22
EP0123033A1 (de) 1984-10-31
DE3306857A1 (de) 1984-08-30

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