Patent EA-000143-B1 (EA)
Title: Device for selecting one or more rotationally symmetrical containers from a stream of rotationally symmetrical containers conveyed under pressure from behind, and cylinder with controlled plunger
Inventor: HEUFT BERNHARD
IPC: B07B13/00
Filed: 1996-11-25
Abstract: 1 The device for selecting one or more rotationally symmetrical containers (10) from a stream of such containers (10) conveyed under pressure from behind comprises a first conveyor (12) for the container stream and a second conveyor (18) for removing the selected containers (10) wherein the second conveyor (18) diverges from the first conveyor (12) at a removal point (16) wherein the first conveyor (12) descends at a shallow angle from the removal point (16) and a separator wedge (20) is provided between the first and second conveyors (12, 18), the first (22) and the second (24) deflecting sliders characterized in that said first deflecting slider (22) is provided at the removal point (16) next to the first conveyor (12) on the side on which the second conveyor (18) diverges and can slide out towards the apex of the separator wedge (20) and said second deflecting slider (24) is provided at the removal point (16) next to the first conveyor (12) on the side at which the first conveyor starts to descend and can slide out towards the apex of the separator wedge (20) wherein with said first deflecting slider is slided out containers (10) continue to move on the first conveyor and for removal containers (11) on the second conveyor (18) said second deflecting slider (24) slides out, wherein said first deflecting slider (22) draws in. 2. The device according to Claim 1 characterized in that said separator wedge (20) is divided longitudinally to two sharp ends (30, 32) which can slide out towards first or second deflecting sliders (22, 24). 3. The device according to Claim 1 or 2 characterized in that diverting sliders (38, 40) are provided at the removal point (16) next to the first conveyor (12) and in the turned position they transfer to containers (10) an impulse towards deflection of first conveyor (12) or towards diversion of second conveyor (18). 4. The device according to Claim 1 or 3 characterized in that front wide end of said separator wedge (20) is arranged to be turnable around axis (40). 5. The device according to any preceding Claims characterized in that a star wheel (50) is provided next to first conveyor (12) at a removal point (16), which protrudes into the container stream and drive it to rotate so as using an impulse pickup at each revolution it transfers a definite number of impulses to an electronic control device to initiate deflecting sliders (22, 24) and, if necessary, driving units of diverting sliders (38, 40) to regulate the speed of protrusion thereby according to the speed of containers (10) convey. 6. The device according to Claims 1-4 characterized in that light source (100) and a camera of line development are provided and arranged on both sides of first conveyor (12) at a removal point (16) and by signals received from the camera (101) determine the speed of containers (10) convey. 7. The device according to one of Claims 1-6 characterized in that a device is provided on first conveyor to damp fluctuations of speed pressure caused by removal of one or several containers from the stream. 8. Cylinder (60) with controlled piston (64) stroke having pipes at each cylinder (60) end for inlet and outlet of fluid characterized in that plurality of other connections can be provided which arranged along the cylinder length and can be closed accordingly separately. 9. Cylinder (70) with a piston (74) inside having pipes at each cylinder end for inlet and outlet of fluid characterized in that at least one throttle reverse valve (78) is provided with passing parallel by-pass pipeline wherein air can be released from the cylinder by a control valve (80) or through the by-pass pipeline.