US3691409A - Vibration generating device for vibratory machine - Google Patents

Vibration generating device for vibratory machine Download PDF

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Publication number
US3691409A
US3691409A US86170A US3691409DA US3691409A US 3691409 A US3691409 A US 3691409A US 86170 A US86170 A US 86170A US 3691409D A US3691409D A US 3691409DA US 3691409 A US3691409 A US 3691409A
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US
United States
Prior art keywords
rotor
weight
rotation
weights
motor
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
US86170A
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English (en)
Inventor
Hisamine Kobayashi
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.)
Tipton Manufacturing Corp
SHIKISHIMA TIPTON KK
Original Assignee
Tipton Manufacturing Corp
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Filing date
Publication date
Priority claimed from JP6838696A external-priority patent/JPS4939419B1/ja
Application filed by Tipton Manufacturing Corp filed Critical Tipton Manufacturing Corp
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Publication of US3691409A publication Critical patent/US3691409A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • B24B31/06—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 involving oscillating or vibrating containers
    • B24B31/073—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 involving oscillating or vibrating containers involving a bowl being ring- or spiral-shaped

Definitions

  • the present invention relates to a vibration generating device for a finishing machine or the like having automatically adjustable eccentric weights.
  • Vibratory machines of several different types having vertically or horizontally oriented motors are known in the art.
  • the vibration generating device for said machines has a motor means with eccentric weights clamped on the shaft thereof. Any adjustment of the position of the eccentric weights is usually performed by hand and is a difficult and timeconsuming process.
  • a vibration generating device comprising a motor having at least one and preferably two automatically adjustable eccentric weights, preferably one on each end of the motor shaft. The position of at least one of said eccentric weights is changed automatically to predetermined phase angle depending on the direction of the rotation of said motor means.
  • FIG. I is a side elevational view of vibration generating device according to the invention, with parts illustrated in section and parts broken away;
  • FIG. 2 is a plan view of the device shown in FIG. 1;
  • FIG. 3 is a fragmental sectional view taken on line 3-3 of FIG. 1;
  • FIG. 4 is a view similar to FIG. 3, illustrating an automatically changeable eccentric weight preferably to be mounted on the lower end of the motor shaft;
  • FIG. 5 is a fragmental side elevational view of the device shown in FIG. 4;
  • FIG. 6 is a diagrammatic view for explaining the operation of the device shown in FIGS. 3 to 5;
  • FIG. 7 is a side elevational view of a vibratory finishing apparatus having a vibration generating device according to the invention mounted therein;
  • FIG. 8 is a plan view of the apparatus shown in FIG. 7 indicating the movement of the mass.
  • the vibration generating device 28 will be described with reference to FIGS. 1 to 6.
  • the unit 28 comprises a reversible electric motor 44 having a mounting flange 46 rigidly secured to a vibratory machine.
  • the motor 44 has an output shaft 50 projecting beyond each end of the motor housing.
  • Each of the projecting end portions of the shaft 50 is stepped and is provided with at least one eccentric weight 52 or 54a.
  • the eccentric weight 52 or 54a is disposed on the motor shaft 50 so as to be rotatable about the axis thereof.
  • an exchangeable sleeve 58 is keyed to the shaft end by a key 56 and said sleeve is provided with a circumferential groove 60 extending a predetermined distance around the periphery of the sleeve so as to subtend a predetermined angle, as shown in FIGS. 3 and 4.
  • the grooves can have a circumferential length equal to or different from each other.
  • the eccentric weight 52 or 54a is mounted on the associated sleeve 58 by having the hub 62 thereon rotatably fitted onto the sleeve and a control pawl 64 on the hub extending into the associated groove 60.
  • the eccentric weights are rotatable with respect to the sleeve, when the motor is rotated in the direction of the arrow 68, i.e., clockwise as viewed in FIGS. 3 and 4, the inertia of the weights causes them to remain still while the shaft 50 and sleeve 58 turn within the hubs 62 until the ends of the grooves on the sleeves 58 engage the control pawls 64 to drive the weights.
  • the respective weights take positions 52.1 and 54.1 respectively. This means that the weights lag by angles of a or 0 respectively with respect to the reference positions as shown in FIGS. 3 and 4. In the same way, when the motor is rotated in the direction of the arrow 69 i.e.
  • both the weights can be mounted on the shaft 50 for displace ment about the axis thereof. That is, weight 52 can be mounted on the upper end of the shaft and weight 54a can be mounted on the lower end of the shaft, in which case the difference between the angles of the two weights, i.e., angle (a-c), will be the relative displacement of the weights.
  • the upper weight can be movable and the lower weight can be fixed, as weights 52 and 54 shown in FIG. 1. Either of the weights 52 or 54 can be fixed on the shaft 50.
  • the weight can be stepped and a set screw 66 extend through the upright portion thereof between the steps, as shown in FIG. 5.
  • the same is preferably sandwiched between two washers 68 and 68 and then secured on the shaft 50 by a set screw 70 as shown in FIG. 5.
  • a set screw 70 as shown in FIG. 5.
  • one or more additional weights 72 can be secured to the eccentric weight by screws in order to adjust its mass.
  • the angle between the weights can be varied by changing the length of either groove 60.
  • the motor shaft can have stops thereon and either the upper or lower sleeve or both can have a circumferential groove having any desired length.
  • the vibration generating unit 28 is mounted on a self-separating vibratory finishing apparatus.
  • the finishing apparatus has a hollow pedestal 10 disposed on a foundation (not shown) on a plurality of short legs 12 of any suitable shock absorbing material such as rubber and fixed to the bottom thereof, and a cover 14 enclosing a plurality of helical springs 16 fixed at one end to the top of the pedestal l0 and disposed at substantially equal angular intervals around a central axis of said pedestal.
  • a horizontal base flange 18 is rigidly secured to the other ends of the helical springs 16.
  • a vibratory finishing trough 22 in the form of a toroid.
  • a cylindrical housing 26 extends through the hollow central portion of the trough 22 and is sealed thereto, and extends through the base flange 18.
  • the said vibration generating device according to the invention is fixed to the lower end portion of the interior of the cylindrical housing 26.
  • a sieve 30 is fixedly secured on the top face of the trough 22 so as to fully cover one portion thereof.
  • a rockable flap 40 is pivotally mounted on a rod 38.
  • the flap 40 has a horizontal position in which it can be fixed by any desirable means (not shown in the figure) and where it is inoperative, and a pendent position in which it be tilted at a predetermined angle to the horizontal and extends down into trough 22 where it is operative.
  • the vibration generating unit 28 is energized to forcedly vibrate the trough 22 to impart a motion to a mass in the trough, which mass includes workpieces and abrasives.
  • the vibratory motion has two com ponents, one of which causes the mass to move in an orbital path as shown by the arrows 76 and the other of which causes the mass to progress linearly in a direction determined by the direction of rotation of the motor 44.
  • the mass For separation, the mass must be moved linearly with a slight orbital motion as shown by arrows 78 and 88 in FIG. 8.
  • clockwise rotation of the motor shaft is used for the finishing operation, the advance angle of the upper weight being automatically adjusted so as to be 15 to 30 by the structure as described above, and the mass effects a helical motion 76 and is shifted in the direction of the arrow 77, i.e., counterclockwise as viewed in FIG. 8.
  • the motor is again reversed and the flash gate is lifted by any suitable means (not shown). Then, the direction of flow of the mass is also reversed and the mass pushes the flap 40 upwardly to its inoperative position.
  • the fiap is fixed at its horizontal position, unfinished workpieces are put in the trough and the finishing operation begins.
  • workpieces can be easily separated from the abrasives after completion of vibratory finishing and the finishing operation can be easily restarted after completion of the separating operation by using said vibration generating device and by reversing the motor.
  • the invention has been particularly described and illustrated with respect to its application to a self-separating vibratory finishing machine, numerous other applications requiring two kinds of vibration in a vibratory machine will be immediately apparent.
  • the same vibration generating device can be used for grinding mills and a finishing machine with a vertical or horizontal motor axis in which two kinds of vibrating conditions are necessary.
  • fine polishing can be carried out after rough finishing in one machine by reversing the motor when the vibration generating device according to the present invention is used. Otherwise, two sets of machines, separating machines and transportation means are required.
  • a vibration generating device for vibrating a vibratory machine to give two kinds of vibratory motion to said machine comprising a reversible motor means having a rotor, at least two stops on said rotor spaced from each other in a direction around said rotor, and a pair of eccentric weights on said rotor, at least one of said weights being movably mounted for free angular movement around the axis of rotation of said rotor between said stops, said one weight rotating due to its inertia when said rotor rotates in one direction until it abuts one stop and rotating due to its inertia when said rotor rotates in the other direction until it abuts the other stop, said stops being at positions which when said one weight is against the one stop it leads the other weight by a predetermined angle during rotation of the motor means in one direction of rotation and when said one weight is against the other stop it leads the other weight by a predetermined angle during rotation of the motor means in the other direction, whereby reversal of the
  • a vibration generating device as claimed in claim 1 wherein the other eccentric weight is fixed to said rotor of said motor means and only the one eccentric weight is freely movably mounted on said rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
US86170A 1967-12-28 1970-11-02 Vibration generating device for vibratory machine Expired - Lifetime US3691409A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8491767 1967-12-28
JP3227868 1968-04-20
JP6838696A JPS4939419B1 (enExample) 1967-06-07 1968-06-07

Publications (1)

Publication Number Publication Date
US3691409A true US3691409A (en) 1972-09-12

Family

ID=27287646

Family Applications (2)

Application Number Title Priority Date Filing Date
US86170A Expired - Lifetime US3691409A (en) 1967-12-28 1970-11-02 Vibration generating device for vibratory machine
US00086161A Expired - Lifetime US3811231A (en) 1967-12-28 1970-11-02 Self-separating vibratory finishing apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00086161A Expired - Lifetime US3811231A (en) 1967-12-28 1970-11-02 Self-separating vibratory finishing apparatus

Country Status (6)

Country Link
US (2) US3691409A (enExample)
CA (1) CA936718A (enExample)
CH (1) CH476547A (enExample)
DE (1) DE1817452B2 (enExample)
FR (1) FR1598891A (enExample)
GB (1) GB1224050A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911416A (en) * 1974-08-05 1975-10-07 Motorola Inc Silent call pager
US4452016A (en) * 1982-02-26 1984-06-05 Rosemont Industries, Inc. Reversing weight for vibrating finishing machines

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789874A (fr) * 1971-10-09 1973-04-09 Boulton Ltd William Perfectionnements aux broyeurs vibrogiratoires
FR2221916A5 (enExample) * 1973-03-12 1974-10-11 Oxy Metal Finishing Corp
US3844071A (en) * 1973-11-28 1974-10-29 Roto Finish Ltd Apparatus for vibratory finishing
DE2362398C3 (de) * 1973-12-15 1981-10-08 Roto-Finish Ltd., Hemel Hempstead, Hertfordshire Vibrationsgleitschleifmaschine
FR2299120A1 (fr) * 1975-01-30 1976-08-27 Abral Sarl Procede et machine pour le traitement de surface de pieces faconnees a l'ai
US4001979A (en) * 1975-09-08 1977-01-11 The Hutson Corporation Unloading ramp assembly
DE2912125A1 (de) * 1979-03-27 1980-10-02 Metallgesellschaft Ag Separiereinrichtung fuer vibrationsgleitschleifmaschinen
US4253916A (en) * 1979-09-19 1981-03-03 Shikishima Tipton Mfg. Co., Ltd. Vibratory plating method
US4461122A (en) * 1981-08-03 1984-07-24 Roto-Finish Company, Inc. Finishing apparatus with automatically-variable vibrogyratory intensity and/or direction
DE3316713C2 (de) * 1983-05-06 1986-08-07 Max Spaleck Gmbh & Co Kg, 4290 Bocholt Vibrationsgleitschleifmaschine
DE3468828D1 (en) * 1984-03-28 1988-02-25 Walther Carl Kurt Gmbh Bowl-type vibratory finishing container
DE3520911C2 (de) * 1985-06-11 1987-05-07 Rösler Gleitschlifftechnik, Maschinenbau und technische Keramik GmbH, 8623 Staffelstein Verwendung eines bezüglich seiner Drehrichtung umschaltbaren Vibrationsmotors einer Vibrationsgleitschleifmaschine
CN110681571B (zh) * 2019-10-17 2024-09-27 武汉轻工大学 一种多功能振动筛
CN111546226B (zh) * 2020-04-30 2022-04-01 中国航发哈尔滨东安发动机有限公司 机匣型腔/油路振动抛磨装置
CN117595559B (zh) * 2024-01-18 2024-03-29 沈阳电机制造有限公司 一种大型高压三相同步电动机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3161993A (en) * 1963-11-12 1964-12-22 Roto Finish Co Finishing apparatus and method
US3423884A (en) * 1966-01-12 1969-01-28 Roto Finish Co Finishing apparatus having a plurality of compartments
US3606702A (en) * 1967-05-29 1971-09-21 Roto Finish Co Apparatus for treating articles therefor
CH511675A (de) * 1969-05-02 1971-08-31 Polyservice Ag Vorrichtung zum Bearbeiten von Teilen nach dem Gleitschliffverfahren oder zum Mahlen, Beschichten und Mischen von Stoffen
US3633321A (en) * 1970-07-21 1972-01-11 Roto Finish Co Flexible gate for a vibratory finishing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911416A (en) * 1974-08-05 1975-10-07 Motorola Inc Silent call pager
US4452016A (en) * 1982-02-26 1984-06-05 Rosemont Industries, Inc. Reversing weight for vibrating finishing machines

Also Published As

Publication number Publication date
GB1224050A (en) 1971-03-03
FR1598891A (enExample) 1970-07-06
DE1817452B2 (de) 1972-06-08
DE1817452A1 (de) 1969-09-25
CH476547A (de) 1969-08-15
CA936718A (en) 1973-11-13
US3811231A (en) 1974-05-21

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