EP0400515B1 - Machine vibrante, en particulier pour la finition de surfaces de pièces, avec dispositif de déchargement automatique - Google Patents

Machine vibrante, en particulier pour la finition de surfaces de pièces, avec dispositif de déchargement automatique Download PDF

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Publication number
EP0400515B1
EP0400515B1 EP90110046A EP90110046A EP0400515B1 EP 0400515 B1 EP0400515 B1 EP 0400515B1 EP 90110046 A EP90110046 A EP 90110046A EP 90110046 A EP90110046 A EP 90110046A EP 0400515 B1 EP0400515 B1 EP 0400515B1
Authority
EP
European Patent Office
Prior art keywords
connecting wing
ramp
parts
wing
vibrating 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.)
Expired - Lifetime
Application number
EP90110046A
Other languages
German (de)
English (en)
Other versions
EP0400515A1 (fr
Inventor
Giovanni Colombo
Paolo Redaelli
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.)
ROLLWASCH ITALIANA SpA
Original Assignee
ROLLWASCH ITALIANA SpA
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 ROLLWASCH ITALIANA SpA filed Critical ROLLWASCH ITALIANA SpA
Priority to AT90110046T priority Critical patent/ATE98545T1/de
Publication of EP0400515A1 publication Critical patent/EP0400515A1/fr
Application granted granted Critical
Publication of EP0400515B1 publication Critical patent/EP0400515B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
    • B24B31/16—Means for separating the workpiece from the abrasive medium at the end of operation

Definitions

  • the present invention relates to a vibrating machine, particularly for the surface finishing of parts, with automatic unloading means.
  • an annular-trough vibratory grinding machine comprising a separating sieve section disposed above the bottom , and a ramp which extends from the bottom to the height of the separating sieve section and which is swivellable about a horizontal axis out of its position dipping into the contents of the vessel into a position lying above the contents of the vessel, wherein the ramp is held by counterbalancing in its position above the contents of the vessel, the counterbalancing being achieved by means of a counterweight which from the horizontal axis projects outside the wall of the annular trough and which when the ramp is in the position lying above the contents of the vessel is either directed approximately vertically downwards or lies approximately at a swiveling angle of 20 deg. before the vertical.
  • vibrating tanks are currently commercially available for performing surface finishing operations such as smoothing, deburring and the like which substantially have a tank body which is provided with vibration means and is supported by a frame with the interposition of anti-vibration means.
  • a bottom is defined inside the tank body and has a ramp-like portion which extends in a spiral and acts as a guiding element for sending the parts to a connecting wing which connects to an unloading plane.
  • Said connecting wing is pivoted to the unloading plane and is associated with a lever which can be accessed from the outside of the tank and is manually actuated by an operator; the actuation of the lever moves the connecting wing to a lowered position in which it connects to the ramp-like portion so as to create a path for the outward unloading of the processed parts.
  • the aim of the invention is indeed to eliminate the previously described disadvantages by providing a vibrating machine, particularly for the surface finishing of parts, which allows to automatically perform the insertion of the connecting wing in the tank body without running the risk of trapping parts which would not allow the correct positioning of said connecting wing.
  • a particular object of the invention is to provide a vibrating machine in which the automatic unloading of the parts can be obtained with extremely simple means such as to not cause impediment in the execution of the machine itself.
  • Another object of the present invention is to provide a vibrating machine, particularly for the surface finishing of parts, which gives the greatest assurances of reliability and safety in operation and furthermore allows to achieve a significant reduction in labor.
  • Not least object of the present invention is to provide a vibrating machine, particularly for the surface finishing of parts, which is easily obtainable starting from commonly commercially available elements and materials and which is furthermore highly competitive from a merely economical point of view.
  • the vibrating machine particularly for the surface finishing of parts, with automatic unloading means, according to the invention, comprises a tank body 1 provided with vibration means which is supported by a supporting frame 2 with the interposition of per se known anti-vibration means.
  • the tank body 1 is internally provided with a bottom 3 with a circular configuration which defines a ramp-like portion 4 which extends substantially in the shape of a spiral.
  • An unloading plane 5 for the outward conveyance of the parts is provided in the upper part of the tank body and can be connected to the ramp-like portion by means of a connecting wing 6 which is pivoted to said unloading plane.
  • the connecting wing is oscillable so that it can be placed in a raised position during normal operating steps and so that it can be subsequently lowered, inserting it in the mass being processed, so as to arrange itself in alignment with the ramp-like portion and consequently constitute a path for the extraction of the parts toward the output.
  • the connecting wing 6 is actuated by means of motor means which are advantageously constituted by a cylinder 10 which rotates the connecting wing about its rotation axis; said cylinder 10 is controlled by control means constituted by a lower detector 12 which detects the correct positioning of the connecting wing in alignment with the ramp-like portion.
  • motor means which are advantageously constituted by a cylinder 10 which rotates the connecting wing about its rotation axis; said cylinder 10 is controlled by control means constituted by a lower detector 12 which detects the correct positioning of the connecting wing in alignment with the ramp-like portion.
  • the detector 12 is controlled by intervention timers which are mounted inside the control console and comprise a first intervention timer on which a preset time, within which the connecting wing must arrange itself in alignment with the ramp, can be set. If the connecting wing fails to position itself correctly within the preset time, since for example a part 20 has remained trapped between the connecting wing and the ramp-like portion, as illustrated in figure 4, the actuation command to the motor means is reversed and the connecting wing is raised for a second period of time which is also preset and controlled by a second timer.
  • the motor means are controlled by a cycle timer and by the timers, so that in practice the descent operation is repeated continuously until the connecting wing arranges itself in alignment with the ramp-like portion, thus ensuring the correct operation of insertion of the connecting wing inside the mass being processed in the tank body, within the time preset by the first timer.
  • the first timer allows the motor means to lower the connecting wing, which interrupts the operation of the motor means if it arrives at the sensor within the preset time, whereas if a part remains trapped between the connecting wing and the ramp-like portion, since the correct positioning has not occurred within the preset time, the second timer allows the upward return of the connecting wing for a set time, activating the first timer which resets a time required to complete the descent of the connecting wing.
  • the detector can be provided of any kind, since it must simply detect the position of the connecting wing for the subsequent driving of the motor means by means of the timers.
  • the invention achieves the proposed aim and objects; in particular the fact is stressed that a vibrating machine is provided in which it is possible to perform the unloading operations automatically, without the need for the operator who manually inserts the connecting wing inside the mass being processed.
  • the materials employed, as well as the contingent shapes and dimensions may be any according to the requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Jigging Conveyors (AREA)
  • Feeding Of Workpieces (AREA)

Claims (3)

  1. Machine vibrante, en particulier pour la finition de surface de pièces, avec des moyens de déchargement automatiques, qui comprend un corps (1) en forme de réservoir muni de moyens pour provoquer des vibrations et relié à un châssis de support (2) avec interposition de moyens anti-vibrations, ledit corps en forme de réservoir (1) comprenant un fond interne (3) qui définit une portion en forme de rampe (4) pour diriger les pièces vers un plan de déchargement (5) au moyen d'une aile de liaison (6) qui est associée audit plan de déchargement (5) et qui peut être associée de façon amovible avec ladite portion en forme de rampe (4) pour l'extraction des pièces finies, caractérisée en ce qu'elle comprend un détecteur inférieur (12) de la position de ladite aile (6) dans sa position abaissée sur ladite portion en forme de rampe (4) et des minuteries d'intervention qui commandent le moment du passage de ladite aile de liaison (6) entre ladite position soulevée et ladite position abaissée et provoquent l'actionnement de moyens moteurs (10) pour déplacer ladite aile de liaison (6), lesdites minuteries d'intervention comprenant une première minuterie d'intervention qui peut être réglée initialement pour un premier intervalle de temps pendant lequel ladite aile de liaison (6) doit atteindre ladite portion en forme de rampe (4) et une seconde minuterie qui peut être réglée initialement pour un second intervalle de temps pendant lequel un retour vers le haut au moins partiel de ladite aile de liaison (6) est effectué si ladite aile de liaison (6) ne vient pas se positionner d'elle-même devant ledit détecteur (12) pendant ledit premier intervalle de temps.
  2. Machine vibrante selon la revendication 1, caractérisée en ce que lesdits moyens moteurs (10) sont constitués par un vérin (10) qui agit sur la tige de pivotement de ladite aile (6) pour établir la liaison avec ledit plan de déchargement (5).
  3. Machine vibrante selon la revendication 1 ou 2, caractérisée en ce qu'elle comprend une minuterie d'établissement de cycle pour déterminer l'intervalle de temps pour le déchargement vers l'extérieur du matériau.
EP90110046A 1989-06-02 1990-05-28 Machine vibrante, en particulier pour la finition de surfaces de pièces, avec dispositif de déchargement automatique Expired - Lifetime EP0400515B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90110046T ATE98545T1 (de) 1989-06-02 1990-05-28 Ruettelmaschine, insbesondere fuer die oberflaechenfertigung von werkstuecken mit automatischer entladung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8920776A IT1230226B (it) 1989-06-02 1989-06-02 Macchina a vibrazione particolarmente per la finitura superficiale di pezzi con mezzi di scarico automatico.
IT2077689 1989-06-02

Publications (2)

Publication Number Publication Date
EP0400515A1 EP0400515A1 (fr) 1990-12-05
EP0400515B1 true EP0400515B1 (fr) 1993-12-15

Family

ID=11171902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110046A Expired - Lifetime EP0400515B1 (fr) 1989-06-02 1990-05-28 Machine vibrante, en particulier pour la finition de surfaces de pièces, avec dispositif de déchargement automatique

Country Status (4)

Country Link
EP (1) EP0400515B1 (fr)
AT (1) ATE98545T1 (fr)
DE (1) DE69005196T2 (fr)
IT (1) IT1230226B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9100335D0 (en) * 1991-01-08 1991-02-20 Hodgson Bryan S Finishing apparatus for workpieces
ITMI20020827A1 (it) * 2002-04-18 2003-10-20 Rollwasch Italiana Spa Macchina circolare per vibrofinitura con mezzi di lavaggio perfezionati
ITMI20020826A1 (it) * 2002-04-18 2003-10-20 Rollwasch Italiana Spa Macchina circolare per vibrofinitura a separazione automatica dei pezzi da lavorare e degli elementi di finitura

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8600583U1 (de) * 1986-01-13 1987-05-14 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal Ringtrog-Vibrationsgleitschleifmaschine
DE3703545A1 (de) * 1987-02-06 1988-08-18 Walther Carl Kurt Gmbh Wahlweise wirksame austrags- und trenneinrichtung an vibrations-scheuerbehaeltern

Also Published As

Publication number Publication date
ATE98545T1 (de) 1994-01-15
IT8920776A0 (it) 1989-06-02
EP0400515A1 (fr) 1990-12-05
DE69005196D1 (de) 1994-01-27
IT1230226B (it) 1991-10-18
DE69005196T2 (de) 1994-07-07

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