EP0400515A1 - Vibrating machine, particularly for the surface finishing of parts, with automatic unloading means - Google Patents
Vibrating machine, particularly for the surface finishing of parts, with automatic unloading means Download PDFInfo
- Publication number
- EP0400515A1 EP0400515A1 EP90110046A EP90110046A EP0400515A1 EP 0400515 A1 EP0400515 A1 EP 0400515A1 EP 90110046 A EP90110046 A EP 90110046A EP 90110046 A EP90110046 A EP 90110046A EP 0400515 A1 EP0400515 A1 EP 0400515A1
- 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.)
- Granted
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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.
- 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.
- the aim of the invention is indeed to eliminate the previously described disadvantages by providing a vibrating machine, particularly ior 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.
- a vibrating machine particularly for the surface finishing of parts, with automatic unloading means, according to the invention, which comprises a tank body provided with vibration means and is connected to a supporting frame with anti-vibration means interposed, said tank body having an internal bottom which defines a ramp-like portion for sending the parts toward an unloading plane by means of a connecting wing associated with said unloading plane and removably associable with said ramp-like portion for the extraction of the finished parts, characterized in that it comprises a lower detector of the arrangement of said wing in lowered position on said ramp-like portion, at least one intervention timer which controls the time of passage of said connecting wing from said raised position to said lowered position and drives the actuation of motor means for the movement of said connecting wing.
- 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)
Abstract
Description
- The present invention relates to a vibrating machine, particularly for the surface finishing of parts, with automatic unloading means.
- As is known, 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.
- In this kind of tank, the operation of lowering the connecting wing must be performed manually by the operator, who inserts said connecting wing in a mass constituted by the finished parts and by the loose material used for the smoothing, polishing, and the like, of the finished parts. The operator takes precautions to prevent the processed parts from being retained between the upper portion of the ramp portion and the connecting wing, and if this event occurs he consequently slightly lifts the connecting wing, so as to allow the passage of any possibly trapped part and continues the rotation of the connecting plane until it arranges itself in its lower position, i.e. as a continuation of the ramp-like portion.
- This aspect has so far prevented the provision of automatic actuations for positioning the connecting wing in lower position, since there is the risk of trapping or catching parts being processed.
- It is therefore necessary to provide an operator who manually performs the operation of inserting the connecting wing in the tank to align it with the ramp-like portion and, on the basis of his experience and sensitivity, is capable of preventing the jamming of parts between the connecting wing and the ramp.
- The aim of the invention is indeed to eliminate the previously described disadvantages by providing a vibrating machine, particularly ior 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.
- Within the scope of the above described aim, 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 above described aim, the objects mentioned and others which will become apparent hereinaf ter are achieved by a vibrating machine, particularly for the surface finishing of parts, with automatic unloading means, according to the invention, which comprises a tank body provided with vibration means and is connected to a supporting frame with anti-vibration means interposed, said tank body having an internal bottom which defines a ramp-like portion for sending the parts toward an unloading plane by means of a connecting wing associated with said unloading plane and removably associable with said ramp-like portion for the extraction of the finished parts, characterized in that it comprises a lower detector of the arrangement of said wing in lowered position on said ramp-like portion, at least one intervention timer which controls the time of passage of said connecting wing from said raised position to said lowered position and drives the actuation of motor means for the movement of said connecting wing.
- Further characteristics and advantages will become apparent from the description of a preferred but not exclusive embodiment of a vibrating machine, particularly for the surface finishing of parts, with automatic unloading means, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
- figure 1 is a schematic elevation view of the vibrating machine;
- figure 2 is a top plan view of the vibrating machine;
- figure 3 is a schematic view of the vibrating machine during normal operation;
- figure 4 is a schematic view of the step of lowering the connecting wing, with a part schematically trapped between the connecting wing and the ramp-like portion;
- figure 5 is a view of the step of partial lifting of the connecting wing;
- figure 6 is a view of the connecting wing when correctly positioned.
- With reference to the above described figures, 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 connectingwing 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 acylinder 10 which rotates the connecting wing about its rotation axis; saidcylinder 10 is controlled by control means constituted by alower 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 apart 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.
- In the practical embodiment it is possible to set an automatic cycle during which there is a time for the permanence of the parts being processed inside the tank.
- After the time preset by the cycle timer has ended, 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.
- These operations are cyclically repeated until the connecting wing arrives at the detector and is consequently correctly positioned.
- 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.
- From what has been described it can thus be seen that 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 invention thus conceived is susceptible to numerous modifications and variations, all of which are within the scope of the inventive concept.
- All the details mav furthermore be replaced with other technically equivalent elements.
- In practice, the materials employed, as well as the contingent shapes and dimensions, may be any according to the requirements.
- Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90110046T ATE98545T1 (en) | 1989-06-02 | 1990-05-28 | JOGGING MACHINE, PARTICULARLY FOR THE SURFACE FINISHING OF WORKPIECES WITH AUTOMATIC UNLOADING. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8920776A IT1230226B (en) | 1989-06-02 | 1989-06-02 | VIBRATION MACHINE PARTICULARLY FOR THE SURFACE FINISHING OF PIECES WITH AUTOMATIC UNLOADING VEHICLES. |
IT2077689 | 1989-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0400515A1 true EP0400515A1 (en) | 1990-12-05 |
EP0400515B1 EP0400515B1 (en) | 1993-12-15 |
Family
ID=11171902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90110046A Expired - Lifetime EP0400515B1 (en) | 1989-06-02 | 1990-05-28 | Vibrating machine, particularly for the surface finishing of parts, with automatic unloading means |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0400515B1 (en) |
AT (1) | ATE98545T1 (en) |
DE (1) | DE69005196T2 (en) |
IT (1) | IT1230226B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0494490A1 (en) * | 1991-01-08 | 1992-07-15 | Bryan Stuart Hodgson | Finishing apparatus for workpieces |
EP1358966A2 (en) * | 2002-04-18 | 2003-11-05 | ROLLWASCH ITALIANA S.p.A. | Circular vibratory finishing machine with improved washing means |
EP1361022A2 (en) * | 2002-04-18 | 2003-11-12 | ROLLWASCH ITALIANA S.p.A. | Circular vibratory finishing machine with automatic separation of the parts to be treated and of the finishing media |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0229297A2 (en) * | 1986-01-13 | 1987-07-22 | Carl Kurt Walther GmbH & Co. KG | Vibrating polishing machine with ring trough |
DE3703545A1 (en) * | 1987-02-06 | 1988-08-18 | Walther Carl Kurt Gmbh | Optionally active discharging and separating device on vibratory abrading containers |
-
1989
- 1989-06-02 IT IT8920776A patent/IT1230226B/en active
-
1990
- 1990-05-28 EP EP90110046A patent/EP0400515B1/en not_active Expired - Lifetime
- 1990-05-28 DE DE69005196T patent/DE69005196T2/en not_active Expired - Fee Related
- 1990-05-28 AT AT90110046T patent/ATE98545T1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0229297A2 (en) * | 1986-01-13 | 1987-07-22 | Carl Kurt Walther GmbH & Co. KG | Vibrating polishing machine with ring trough |
DE3703545A1 (en) * | 1987-02-06 | 1988-08-18 | Walther Carl Kurt Gmbh | Optionally active discharging and separating device on vibratory abrading containers |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0494490A1 (en) * | 1991-01-08 | 1992-07-15 | Bryan Stuart Hodgson | Finishing apparatus for workpieces |
EP1358966A2 (en) * | 2002-04-18 | 2003-11-05 | ROLLWASCH ITALIANA S.p.A. | Circular vibratory finishing machine with improved washing means |
EP1361022A2 (en) * | 2002-04-18 | 2003-11-12 | ROLLWASCH ITALIANA S.p.A. | Circular vibratory finishing machine with automatic separation of the parts to be treated and of the finishing media |
EP1361022A3 (en) * | 2002-04-18 | 2003-12-17 | ROLLWASCH ITALIANA S.p.A. | Circular vibratory finishing machine with automatic separation of the parts to be treated and of the finishing media |
EP1358966A3 (en) * | 2002-04-18 | 2004-01-07 | ROLLWASCH ITALIANA S.p.A. | Circular vibratory finishing machine with improved washing means |
Also Published As
Publication number | Publication date |
---|---|
DE69005196T2 (en) | 1994-07-07 |
IT1230226B (en) | 1991-10-18 |
IT8920776A0 (en) | 1989-06-02 |
ATE98545T1 (en) | 1994-01-15 |
EP0400515B1 (en) | 1993-12-15 |
DE69005196D1 (en) | 1994-01-27 |
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