SU145209A1 - Spiral coiling machine - Google Patents

Description

Known coiling machines with an intermediate rectilinear section (dash) using a stopping head with a constant rotational speed are not sufficiently productive.

To communicate with the machine clerk, in order to increase its productivity, different rotational speeds, a drive with two pulleys of different diameters is used, while the smaller pulley is connected to the drive shaft by an overrunning clutch, and the larger diameter pulley by an electromagnetic clutch.

FIG. 1 shows the kinematic diagram of the machine; in fig. 2 - its drive.

The core, etched from the coil /, is passed through the hollow spindle 2 and repeatedly bending the disk 3, is wound on the receiving coil 4. The disk 3 tells the core such moving speed that provides the specified winding pitch.

To change the direction of the core, caused by the adopted arrangement of the coils and the disk relative to the spindle, auxiliary rollers 5 are used.

Movement from the spindle is transmitted through a 6 v. Worm gear. 7 and a pair of cylindrical gears 8 and 9 on the shaft 10, on which the screws // and 12 are fixed, connected respectively to the worm wheels 13 and 14. The worm wheel 13 communicates the movement to the receiving coil 4, and the wheel 14 to the disk 3 .

The head 15, carrying the coil 16 with the coiled material, is freely seated on the spindle 2 and connected with it by an electromagnetic clutch 17. With the continuous turning of the spindle 2, the head 15 is periodically stopped by turning off the electromagnetic clutch and simultaneously activating the brakes 18. To turn off and turn on the electromagnetic the clutch and brakes, a cam 19 mounted on the control shaft 20 is used to impart the required speed using a pair of spur gears 21 and 22 and a worm gear 23 and 24.

The cam 19 of the protrusion includes the contacts 25 and keeps them in the on state for such a length of time as is necessary to obtain the helix. A straight portion of the helix (dash) is formed during the period the head is stopped (approximately half a turn of the spindle).

Two pulleys of different diameters are mounted on the drive shaft 26 (Fig. 2) rotating at a constant speed: a large pulley 27 is connected to the drive shaft by an electromagnetic clutch 28, a smaller pulley 29 by an overheated clutch 30.

When the coupling 28 is turned on, the pulley 27 informs the spindle 2 (Fig. 1) of an increased rotational speed, and the spindle, in turn, causes the pulley 29 to rotate, for which the overrunning clutch free running is used.

Subject invention

The use of a drive with two pulleys of different diameters, of which a smaller diameter chuck is connected to the drive shaft by an overrunning clutch, and a larger diameter pulley is connected by an electromagnetic coupling, in machines for winding onto spiral etched core of spirals with an intermediate straight line segment (dash) to communicate the machine spindle in order to increase its productivity, different speeds of rotation — less when a straight line (dash) is formed and increased — when winding a spiral.

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