Clutch/brake used to stop and start conveyor to achieve a proper location for loading.
Ogura foot mount clutch/brake model P (and sometimes MSU, MP, AMU and MP series).
Most common is the standard P Series, models 20, 50, 100 or 150.
Description of Operation
The electric motor runs constantly. When the empty box is loaded onto the conveyor it trips the photo-eye (LS) which disconnects the clutch and engages the brake holding the conveyor in place. Material is then loaded from another conveyor into the box. As the material passes through a second photo-eye (PH) it is automatically counted. Once the count is reached the controller automatically disengages the brake engaging the clutch and the cycle repeats again. (normally there is a second clutch brake unit on the feeding conveyor which is also stopped and starts as the boxes are moved).
Reason for Selection of the Foot Mounted Clutch Brake
Unlike C-face clutch/brakes that are directly tied into the motor, a foot mount has an input shaft on which a pulley or sprocket can be mounted. By having the motor offset you can then control the input speed into the clutch brake which automatically controls the output speed. In many cases this type of set up would eliminate the need for a speed reducer which would add cost to the system. Ogura foot mounted clutch/brakes have a double bearing construction on both the input and the output shafts. This type of construction can accommodate heavy overhung loads if required. Foot mounted units can also come with fans to provide additional cooling in high cycle applications. Conversely the units can be sealed for protection in corrosive environments like wall board or cement plants. Foot mounted units are also easy to install because they come in as one assembly.
Besides conveyor applications foot mounted units are also used in a variety of packaging machine or food processing machinery applications. Because of their shaft input and shaft output design the customer can control his speeds by changing pulley ratios rather than the expense of a gear box. The Ogura P Series has been around for many years and is interchangeable. Pricing on these units is very competitive.