| 摘要 |
PROBLEM TO BE SOLVED: To provide a conveyance facility which does not cause a conveyed object to be impacted or deviated even while the conveyance speed of the conveyed object over the whole conveyance path is made high, at low cost with improved reliability and conveyance efficiency.SOLUTION: Acceleration and deceleration parts 23, 27 comprising a plurality of variable-speed conveyance sections are provided between constant-speed conveyance sections 21, 25, 29. While a conveyed object 50 passes through the acceleration and deceleration parts 23, 27, a conveyance speed is continuously accelerated or decelerated so as to be changed from a conveyance speed in the constant-speed conveyance section on an upstream side to a conveyance speed in the constant-speed conveyance section on a downstream side. Conveyance speeds and conveyance accelerations when the conveyed object 50 is transferred from the conveyance section on the upstream side to the conveyance section on the downstream side are controlled to be coincident with each other in both conveyance sections on the upstream side and the downstream side. After the conveyed object 50 is conveyed to the conveyance section on the downstream side, the conveyance speed in the variable-speed conveyance section on the upstream side is accelerated or decelerated so as to approach the conveyance speed in the constant-speed conveyance section on the upstream side.SELECTED DRAWING: Figure 4 |
