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Method and apparatus for balancing asymmetric weights in a vibratory conveyor

阅读:473发布:2021-07-20

专利汇可以提供Method and apparatus for balancing asymmetric weights in a vibratory conveyor专利检索,专利查询,专利分析的服务。并且There is provided a method and apparatus for compensating for asymmetric distribution of weight in a bowl-type parts feeder utilizing a vibratory drive system wherein the primary force generating member including a vibration-inducing oscillating member operates along an oscillatory path which is laterally displaced from the central axis of the drive mechanism including a resilient mounting system. The invention in a preferred embodiment is characterized by the provision for means of adjusting the angle of the path through which the oscillating vibration-inducing member travels with respect to the horizontal. In general, the method utilized in accordance with this invention is characterized by the step of directing an asymmetric force vector to said vibratable member to closely approach balance of dynamic forces caused by said asymmetric weight distribution.,下面是Method and apparatus for balancing asymmetric weights in a vibratory conveyor专利的具体信息内容。

1. In a vibratory bowl-type parts feeder having an asymmetric distribution of weight about a central drive axis and normally nonuniform transit of parts therein, said feeder comprising a generally circular vibratable member having an upstanding wall and an inclined trackway disposed around the inner surface of the wall and extending from the bottom of the bowl generally upwardly to an exit therefrom; a base; and resilient means including a plurality of leaf spring stations disposed about said central drive axis in which the leaf springs are inclined at a predetermined angle, the ends of said springs being rigidly fixed, respectively, to said vibratable member and said base; a primary force generating member having a straight line axis of oscillation lying in a plane normal to a radius extending from said central drive axis for inducing vibration of said vibratable member; and means for supporting said primary force generating member in spaced relation to said central drive axis; the improvement of which comprises in combination therewith, means for angularly adjusting the path of said straight line axis of oscillation within said plane and means for setting said primary force generating member at the adjusted angle, whereby the direction of the force vector generated by said primary force generating member and directed to said vibratable member closely approaches balance of the asymmetric inertia caused by said asymmetric distribution of weight and the character of transport of parts is rendered more nearly uniform in the various sectors of said trackway.
2. A vibratory bowl-type parts feeder in accordance with claim 1, wherein the primary force generating member is a free piston vibration-inducing device in which the piston oscillates along an oscillatory path.
3. a vibratory bowl-type parts feeder in accordance with claim 1, in which the angular adjusting means is a pin coacting between the supporting means for said primary force generating member and said primary force generating member about which said primary force generating member is selectively rotatable.
4. A vibratory bowl-type parts feeder in accordance with claim 3, in which said pin is the shank of a cap screw, and the means for setting said primary force generating member at the adjusted angle include a threaded socket in the support means, threads on one end of said shank adapted to threadedly fit in said threaded socket, and an enlarged head on the other end of said shank.
5. A vibratory bowl-type parts feeder in accordance with claim 1, wherein the primary force generating member is adjustably rotatably mounted on said supporting means.
6. A vibratory bowl-type parts feeder in accordance with claim 2, also including means for fixing the location of the path of oscillation of the piston.
7. The method of improving the transport characteristics of parts moving along a trackway in a vibratory bowl-type parts feeder comprising a generally circular vibratable member having an upstanding wall and an inclined trackway disposed around the inner surface of the wall and extending from the bottom of the bowl generally upwardly to an exit therefrom; a base; and resilient means including a plurality of leaf spring stations disposed about said central drive axis in which the leaf springs are inclined at a predetermined angle, The ends of said springs being rigidly fixed, respectively, to said vibratable member and said base; a primary force generating member having a straight line axis of oscillation lying in a plane normal to a radius extending from said central drive axis for inducing vibration of said vibratable member; and means for supporting said primary force generating member in spaced relation to said central drive axis; which comprises the steps of angularly adjusting the path of said straight line axis of oscillation within said plane to direct the force vector generated by said primary force generator and directed to said vibratable member to closely approach balance of the asymmetric inertia caused by said asymmetric distribution of weight, and setting said primary force generating member at the adjusted angle.
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