Compared with the ordinary uncoiler, the rack part of the three-in-one decoiler straightener feeder has been greatly improved. It is equipped with a supporting device and a pressing device on the basis of the traditional uncoiler. Among them: the function of the supporting device is to support the lower part of the coil material when the coil material is installed on the uncoiling device to assist in feeding. The pressing device cooperates with the uncoiling device to keep the coil from unwinding. In addition, the part of the material rack is changed from the ordinary manual expansion to the hydraulic expansion. The material reel adopts the wedge-shaped slider structure, and the four wedge-shaped sliders are driven to move axially through the push rod of the hydraulic device. The periphery of the four wedge-shaped sliders is equipped with four arc-shaped tiles, and the inner sides of the arc-shaped tiles are respectively equipped with connecting blocks arranged axially. The connecting block is connected with the four wedge-shaped sliding blocks through connecting rods, and the inner end of the connecting block extends from the inner end of the arc tile. And through the radial bar hole of the limit baffle, the connecting block is respectively provided with limit sliders on both sides of the limit baffle to prevent its axial movement along the axial direction.
Its working principle is: drive the end cover and four wedge-shaped sliders to move axially through the push rod of the hydraulic device, and then pull the arc-shaped tile through the connecting rod. Because the connecting block on the inner side of the arc-shaped tile is limited by the limit slider and the limit baffle, it cannot move axially, and can only move radially along the radial strip holes on the limit baffle. In this way, the radial movement of the arc-shaped tile is realized, that is, shrinkage and tension are realized. In the tensioned state, the starting power device drives the main shaft to rotate through the sprocket mechanism, and realizes uncoiling under the cooperation of the rolling device.
The side of the uncoiling device on the material rack frame of the three-in-one decoiler straightener feeder is provided with a clamping device, which includes an oil cylinder and a clamping shaft driven by a crank. The clamping shaft is vertically equipped with two clamping rollers with adjustable spacing. The clamping device is beneficial to prevent the material cylinder from moving along the axis of the main shaft and ensure the stable operation of the whole machine.
The frame on the three-in-one decoiler straightener feeder is also provided with an inductive switch and a pneumatic braking system for controlling the operation of the power unit, and the pneumatic braking system includes a brake disc and a pneumatic brake caliper installed on the main shaft. When the leveling feeder part of the three-in-one decoiler straightener feeder stops running, a control signal is given to the induction switch, and the induction switch cuts off the power supply of the power unit to stop the power supply. Due to inertia, the spindle will continue to rotate. At this time, start the pneumatic brake system, and its pneumatic brake caliper clamps the brake disc to generate friction, thereby acting as a brake, so that the spindle stops rotating quickly.
The material rack part of the three-in-one decoiler straightener feeder adopts the hydraulic expansion method, and the wedge-shaped slider structure drives the arc-shaped tile movement, which has low resistance, low wear, low failure rate, and long service life. Moreover, it is equipped with a material clamping device to keep the continuous and stable operation of the material rack.
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