Apparatus for regularly regrouping and distributing objects from different origins on a leadout conveyor |
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| 申请号 | US3628649D | 申请日 | 1969-12-19 | 公开(公告)号 | US3628649A | 公开(公告)日 | 1971-12-21 |
| 申请人 | SIDEL SA; | 发明人 | ARVISENET JACQUES; | ||||
| 摘要 | An apparatus for regularly regrouping and distributing objects from different origins on a leadout conveyor, these objects being fed by a plurality of feed conveyors extending at right angles to the leadout conveyor. The apparatus comprises, for each feed conveyor, a device for detecting the delivery of the objects onto said leadout conveyor, comprising essentially a lock-chamber disposed at the delivery end of the feed conveyor and equipped with means permitting the passage of only one object at a time towards the leadout conveyor, and an input pickup device adapted to be energized only by the permanent presence of an object on said feed conveyor at a point located upstream of said lockchamber. The apparatus further includes an output pickup responsive to the passage of each object on said leadout conveyor, the various input pickups and the single output pickup being connected to an electric control device causing the simultaneous opening of the lock-chambers of said feed conveyors in which the permanent presence of objects has been detected by their energized input pickups at a rate of opening inversely proportional to the number of energized input pickups. | ||||||
| 权利要求 | 1. An apparatus for regularly regrouping and distributing, on a leadout conveyor, objects from different origins and which are supplied by a plurality of feed conveyors extending at right angles to said leadout conveyor comprising: for each feed conveyor, a device for controlling the arrival of objects on said leadout conveyor, said device comprising means defining a lockchamber disposed at the outlet end of said feed conveyor, means in said lock-chamber for allowing only one object at a time to pass to said leadout conveyor comprising two horizontal upper and lower stop arms, a pivotally mounted vertical rod rigid with said stop arms, and a device for controlling the pivotal movements of said rod between two end positions in which only one of said stop arms is interposed in the vertical path of said objects, that is, the upper arm being retracted when the lower arm is interposed in the path of said objects, and vice versa, said last-mentioned device including first and second rotary coaxial electromagnets having their core rods rigidly coupled to each other, and means for alternately energizing said first and second electromagnets, and an input pickup device energizable in response to detection of the permanent presence of an object being supplied by said feed conveyor at a point located upstream of said lock-chamber; an output pickup device operative to detect the passage of each object on said leadout conveyor, and electric control means having connected thereto the different input pickup devices associated with each feed conveyor and the single output pickup device and being operative to effect the simultaneous opening of the lock-chambers of said feed conveyors in which the permanent presence of objects has been detected by respective ones of the energized input pickup devices at a rate inversely proportional to the number of energized input pickup devices. 2. An apparatus as set forth in claim 1, wherein said feed conveyors comprise first and second vertical ducts disposed in side-by-side relationship through which the objects to be distributed may fall freely and with which first and second input pickup devices are associated respectively. 3. An apparatus as set forth in claim 2, wherein said electric control means comprise first, second and third contacts of said first input pickup device associated with said first vertical duct, first, second and third contacts of said second input pickup device associated with said second vertical duct, first and second contacts of said output pickup device, first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, 10th, 11th, 12th, 13th, and 14th relays comprising normally closed back contacts and/or normally open front contacts, said first relay comprising two complementary output terminals having connected thereto the first and second electromagnets controlling the lock-chamber of the first vertical duct, respectively, said second relay having two complementary output terminals connected to said first and second electromagnets controlling the lock-chamber of said second vertical duct, respectively, said first and second relays being connected in series respectively with first front contacts of said third and fourth relays, which contacts are also connected in common to a first front contact of said fifth relay constituting a monostable relay controlling the opening of said lock-chambers, said third relay being of the delayed-closing type and connected to a circuit comprising two parallel branches, the first branch of this circuit comprising the first front contact of said first pickup device and a parallel circuit comprising a second back contact Of said fifth relay and a second front contact of said third relay, the second branch of said two-branch circuit comprising a third front contact of said third relay and a first front contact of said sixth relay which is a delayed opening relay connected in parallel to said third relay, said fourth relay being of the delayed-closing type and connected to a circuit comprising two parallel branches comprising in turn, in a first branch, the first front contact of said second input pickup device and a parallel circuit comprising a third back contact of said fifth relay and a second front contact of said fourth relay, and in another branch a third front contact of said fourth relay and a first front contact of said seventh relay which is of the delayed-opening type and connected in parallel to said fourth relay, said eighth relay being connected in parallel to fourth front contacts of said third and fourth relays respectively, said ninth relay, which is of the delayed-opening type, being connected in series with said first front contact of said output pickup device, a first back contact of said 10th relay, a first front contact of said eighth relay and an OR circuit consisting of the two second back contacts connected in parallel, of said first and second input pickup devices respectively, said fifth monostable relay controlling the opening of said lock-chambers being connected in series with a second front contact of said eighth relay and a first back contact of said ninth relay, said electric control device further comprising an AND circuit consisting of the two series connected third front contacts of said first and second input pickup devices, said AND circuit being connected in turn on the one hand to said 10th relay also connected in series with a second back contact of said ninth relay and a second front contact of said 10th relay, and on the other hand to the second front contact of said output pickup device which is connected in turn to two parallel circuits containing therein said 11th and 12th relays respectively, the first one of said last-named parallel circuits comprising said 11th relay and, in series therewith, a first back contact of said 12th relay constituting a bistable multivibrator, the other parallel circuit comprising said 12th relay and, in series with this 12th relay, a second back contact of said 11th relay and two parallel contacts, namely a second front contact of said 12th relay and a second front contact of said 13th relay constituting a bistable multivibrator, a third front contact of said 12th relay and said OR circuit being connected in parallel to a first control input of said 13th relay constituting a bistable multivibrator, the other input of said 13th relay being connected in series to a third front contact of said 11th relay, a fourth front contact of said 12th relay being connected to said ninth relay, and finally said 14th relay, which is of the delayed-closing type, connected in series with a third front contact of said eighth relay and a third back contact of said ninth relay, a front contact of said 14th relay being connected between said 12th relay and the second front contact of said 10th relay. |
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