The active payingoff mechanism of drawing machine
Technical field
The utility model relates to a kind of metal wire rod drawing machine, specifically a kind of active payingoff mechanism that is used for drawing machine.
Background technology
Existing metal wire rod drawing machine, the power of its payingoff mechanism are to realize by the power of admission machine, are passive unwrapping wire.Metal wire rod walking speed on this passive payingoff mechanism changes greatly, thereby causes the rough of metal wire rod, and fracture easily.
Summary of the invention
The utility model provides a kind of active payingoff mechanism of drawing machine at the problems referred to above, uses this mechanism can realize the active unwrapping wire of metal wire rod, can make the metal wire rod walking speed steady, and smooth surface is easy fracture not.
According to the technical solution of the utility model: a kind of active payingoff mechanism of drawing machine, comprise the wheel disc base, wheel disc is assemblied on the wheel disc base rotationally, and described wheel disc is connected with the wheel disc rotating mechanism.
Described wheel disc rotating mechanism is installed on the minor sprocket on the motor output shaft by motor, is installed on the hinge wheel on the wheel disc and connects minor sprocket and the chain of hinge wheel constitutes.Described motor is an adjustable frequency motor.
Device has the laying tension guiding mechanism on the described wheel disc base, and this laying tension guiding mechanism comprises swing arm, is equipped with the swing arm running roller in the swing arm, and swing arm is connected with swing arm driving cylinder.Described swing arm is provided with sensor, and sensor is electrically connected with the control system of motor.
Device has Multiple disc brake mechanism on the described wheel disc base, and this Multiple disc brake mechanism comprises the lock arm, is equipped with brake shoe on the lock arm, and the lock arm drives cylinder with the lock arm and is connected.There are two covers in described Multiple disc brake mechanism, is arranged in the both sides of wheel disc symmetrically.
Technique effect of the present utility model is: wheel disc of the present utility model is driven by the wheel disc rotating mechanism, realizes the active unwrapping wire of metal wire rod, and the wire rod walking speed is steady, the smooth not easy fracture of wire surface.
Description of drawings
Fig. 1 is the structural representation of the utility model user mode, has wherein omitted Multiple disc brake mechanism;
Fig. 2 is the vertical view of Fig. 1, has wherein omitted the wheel disc rotating mechanism.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.
As shown in Figure 1 and Figure 2, the active payingoff mechanism of a kind of drawing machine of the utility model comprises wheel disc base 10, and wheel disc 16 is assemblied on the wheel disc base 10 rotationally by bearing, and wheel disc 16 is connected with the wheel disc rotating mechanism.
Described wheel disc rotating mechanism is installed on the minor sprocket 11 on motor 23 output shafts by motor 23, and the chain 14 that is installed on the hinge wheel 15 on the wheel disc 16 and connects minor sprocket 11 and hinge wheel 15 constitutes.Motor 23 is fixed on the wheel seat 1.Described motor 23 can adopt adjustable frequency motor.
Wheel frame 4 is installed on the wheel seat 1, and the top of wheel frame 4 is equipped with roller 2, and the bottom of wheel frame 4 is equipped with guide wheel 5, and roll assembly 8 is installed on the base plate of wheel frame 4.Metal wire rod 6 links to each other with admission machine by roll assembly 8, guide wheel 5 and roller 2 successively.
Device has the laying tension guiding mechanism on wheel disc base 10, is used for adjusting the size of laying tension.This laying tension guiding mechanism comprises swing arm 7, is equipped with swing arm running roller 3 in the swing arm 7, and swing arm 7 is connected with swing arm driving cylinder 51.Also be provided with sensor 52 in the swing arm 7, sensor 52 is electrically connected with the control system of motor 23.Sensor 52 transmission information are handled the speed of adjustable frequency motor 23 to control system by control system, thereby realize the adjustment of tension force.
Returning apparatus has Multiple disc brake mechanism on wheel disc base 10, is used for braking wheel disc 16.This Multiple disc brake mechanism comprises lock arm 12, is equipped with brake shoe 13 on the lock arm 12, and lock arm 12 drives cylinder 50 with the lock arm and is connected.Multiple disc brake mechanism preferably is provided with two covers, is arranged in the both sides of wheel disc 16 symmetrically, and to the brake-force balance of wheel disc 16, braking steadily.
The operation principle of the present utility model and the course of work:
The utility model is to drive rotating disk 16 rotations by the adjustable frequency motor 23 that is fixed on the wheel seat 1 by the chain transmission, the I-beam wheel 9 that metal wire rod 6 is housed has been installed on the rotating disk 16 has realized initiatively unwrapping wire.The size of metal wire rod 6 tension force is adjusted by the laying tension guiding mechanism, metal wire rod 6 is on swing arm running roller 3, come transmission information to control system by parts such as swing arm 7, swing arm running roller 3, swing arm driving cylinder 51, sensors 52, by the speed of control system manipulation motor 23, realize the adjustment of tension force.Rotating disk 16 is braked by Multiple disc brake mechanism, drives cylinder 50 by the lock arm and drives lock arm 12, and brake shoe 13 is held rotating disk 16 tightly, thereby realizes the braking of rotating disk 16.