当料盘退到料仓处后代表收料完成，工作位就可以放料盘了

Rs.SkyLine/Flow/NormalFlow/StockTrayFlow.cs

@@ -584,6 +584,7 @@ namespace Rs.AutoDischarge.V3.Flow
                                 Thread.Sleep(500);
                                 StockFlow.Stop();
                                 Thread.Sleep(200);
+                                unloadFinishedEvent?.Invoke();
                                 unloadStep = EStockTrayUnloadFlowStep.到下料托盘气缸下方;
                             }
                         }
@@ -668,7 +669,7 @@ namespace Rs.AutoDischarge.V3.Flow
                         {
                             logInfo = GetClassName() + $"{GetTrayName()}料仓下料完成已运动到起始位";
                             MessageQueue.Instance.Insert(logInfo);
-                            unloadFinishedEvent?.Invoke();
+                            
                             ChangeStatus(EStockTrayStatus.Unloaded);
                             //unloadStep = EStockTrayUnloadFlowStep.等待命令;
                             StockZ.Home();