Workpiece Confirmation Process

Application Overview Purpose: Detects passing components or assemblies on a conveyor. Target workpiece: Sheet metal case. Pallet Workpiece size: 270 x 305 x 50 Design Specifications: Operating Conditions or Design Requirements Conveyor guide width: 345 External dims.: W475 x D1350 x H159 Required Performance Workpiece・Case weight: 8kg Selection Criteria for Main Components Motor roller The integrated motor saves space by not requiring an external motor. Design Evaluation: Verification of main components Verify that the motorized roller can move the material on the conveyor. Motor roller selection ① Required tangential force (Roller transfer ability) confirmation Conveyed object weight M = 8kg When rolling friction coefficient μ = 0.04, Required tangential force F[N] = 9.8 × M × μ = 9.8 × 8 × 0.04 = 3.14N ② Temporary selection of model number MOR38-400-10 ③ Determining required number of rollers When motor roller's starting tangential force FK = 37.3N, Conveyance capacity FH[N] = FK × 0.9 = 37.3 × 0.9 = 33.57N Required number of rollers n = F / FH = 3.14 / 33.57 = 0.094pc. (* 1pc. is capable of conveyance) ● For safety reasons, be sure that load always rides on two rollers. ④ Determining roller length From Load: Length (L = 400) x Width (W = 320), roller length 400 (80mm margin) is selected. Other Design Consideration: One roller is adequate as shown in the calculations above, but considering that if there are any changes in the system with the load on the rollers, rollers come out of alignment, variation in the motor speed, and etc... minimum of two rollers need to engage each assembly tray component. misumi