As a stamping automatic production line, the heavy-duty material frame uses many discharging and unwinding equipments. There are two kinds of power and power. Although the waiting area of the non-powered material frame is smaller, it needs to be completed due to the unpowered material frame. The traction of the flat head has a large loss on the motor of the leveling machine, so it is still rarely used in the market, and most of them still use a power heavy-duty material rack.
In the stamping automatic production line, the feeder is stepped according to the requirements of the stamping process. Therefore, when the heavy material rack is unrolled, it needs to cooperate with the subsequent leveling machine and the feeder to stop and operate, and the standard heavy material frame is controlled to start and stop. It is controlled by a sensor rod mounted on the side of the fuselage (can be changed to a floor-mounted sensor rack according to customer requirements). The principle of automatic control of the standard heavy-duty material frame is: the induction rod has 24V DC voltage and the edge of the machine. When the material is unrolled through the material frame, the material will droop a certain arc when inputting to the subsequent machine. When the arc is too large, the arc is exposed. When the sensor frame is used, the 24V induction circuit is turned on, and the machine is stopped by the intermediate relay and the time relay. When the subsequent machine continues to use the material belt and the material belt is released from the sensor frame, the material frame will continue to discharge, thus achieving Fully automated control of the opening and closing of the material frame, but this type of control must require the surface of the unwound material to be electrically conductive.
Light control heavy material frame
However, the surface of materials used in many press manufacturing applications is not truly conductive, such as some silicon steel sheet materials, surface coated materials and non-metallic materials. These materials cannot be electrically conductive. If they are unrolled using standard heavy-duty material racks, they cannot be realized. For automatic start-stop, the induction device must be modified. Jinzhide Machinery has two kinds of modification methods according to the actual needs of customers:
1. Use the on-beam photoelectric sensor switch to control the automatic opening and closing of the material frame. The on-beam photoelectric switch is installed at a height position where the material frame needs to be opened and stopped. When the material unwinding material hangs down to a certain position to block the incident light, the photoelectric switch controls the stop of the material frame, and when the subsequent machine is used, When the material is out of the position of the opposing light, the discharge can continue to be initiated.
2. Use the micro switch to control the automatic opening and closing of the material frame. The micro switch is fixed by the floor stand and placed in the material rack and the waiting area of the subsequent leveling machine and the feeder. When the unwinding tape droops and touches the micro switch, the micro switch gives the material rack. The intermediate relay inside sends a control signal to control the material frame motor to stop running.
