SU656693A1 - Wire accumulator to multiwire winding apparatus - Google Patents

Description

one

The wire accumulator for multi-thread winding machines belongs to the field of metal forming, in particular, it can be used in wire processing workshops.

Known drive wire to the wire drawing mill, containing two drums of different diameters, providing a supply of wire and installed between them drove driven by an electric motor 1.

When using such drives in multiwire winding machines, it is necessary to switch the drove drive in different modes. In the accumulation mode, it is necessary to turn on the drive motor of the carrier, and in the accumulation reset mode, to reverse the drive motor of the carrier with the adjustment of its rotational speed equal to the angular velocity of the storage drum. In this case, additional devices for switching the carrier and controls are required, which complicates the design and reduces the reliability of the device.

A storage device is also known, comprising a housing, a storage drum, kinematically associated with a storage drum with a carrier driven drive having a slip clutch 2.

However, to transfer the accumulator from the accumulation mode to the accumulation reset mode, it is necessary to disconnect the carrier from the cam-clutch drive and to connect it rigidly with the accumulator drum. To perform such a switch, devices, controls, time and attention of the operator are required.

In addition, the accumulation drum in the accumulation mode is kept from rotation by a (fixed) wire clamped in a clamp in the area between the roller and the accumulation drum. When the wire is released from the clamping, considerable forces in the wire make it difficult to secure the end on the empty spool in case it is pulled out of the fixture of the spool.

The aim of the invention is to simplify maintenance and increase the reliability of the drive;

Claims (2)

The goal is achieved by the fact that the drive is equipped with two overtaking clutches, with one overtaking clutch mounted on the carrier and kinematically connected to the accumulating drum, and the second overtaking clutch mounted on the accumulating drum and connected to the housing. FIG. 1 shows a storage device, as shown in FIG. 2 - kinematic drive circuit; in fig. 3 is a view A-A in FIG. 2; in fig. 4 is a view of BB in FIG. 2. The accumulator comprises a trolley-mounted case 1, a storage drum 2 and a carrier 3 with rollers 4 and 5. The carrier 3 is driven from a shaft 6, which can be rotated from a separate drive or from a winding drum 7 of a winder. The diameter of the drum 2 is larger than the diameter of the drum 7. On the shaft 6, a gear wheel 8 is fixed, which is engaged with a gear wheel 9 rigidly mounted on the shaft 10. The gear wheel 11 is connected to the shaft 10 through friction disks of the slip clutch 12. The wheel 11 is engaged with the gear wheel 13 fixed on the shaft 14, on which the gear 15 is wedged, being in constant engagement with the gear wheel 16. The wheel 16 is rigidly connected by the shaft 17 with the planet carrier 3. The shaft 17 is freely seated on the shaft 6. A storage drum 2 is mounted on the shaft 18. The carrier 3 is connected to the drum 2 by an overtaking clutch 19, allowing them to be rotated relative to one side. In addition, the drum 2 is connected to the housing 1 by an overtaking clutch 20 allowing rotation in one direction. The friction discs 12 are constantly compressed using a spring 21, the compression ratio of which is set by the handwheel 22. The drive works as follows. When filling the wire 23, about 15-30 turns are placed on the winding drum 7, which are subsequently used to create an accumulation during the change of the coil. Then fix the end of the wire on the coil (not shown in the drawings). The suction drum 7 is driven at a constant speed. In multiline winders, the cart with the drive serves a group of exhaust drums alternately. In normal operation, the wire is pulled in the direction of arrow Г by the exhaust drum 7 through a thermoelectric unit and is wound onto a reel (the wire accumulator does not participate in the work). To replace the roller, the cart with the accumulator is brought to the exhaust drum and the accumulation drum 2 is installed coaxially with it. Then the carrier 3 is turned into rotation, the coil is stopped and the wire is fixed by a clip near the roller. The wire between the drum and the clamp is pulled back onto the path taken by the rollers 4 and 5 of the carrier 3. The carrier 3, rotating in the direction of arrow D, removes the coils from the exhaust drum 7 of smaller diameter and punctures them onto a stationary storage drum 2 of larger diameter. The storage drum 2 is kept from moving along the arrow D by the overtaking clutch 20, which, jamming, rigidly ties the drum 2 to the casing 1. The carrier 3, rotating along the arrow D, is not connected to the drum 2 (the overtaking clutch 19 slips). During the accumulation, the wire is cut and the coil is changed. The carrier 3 is driven from shaft 6 through gears 8 and 9, slip clutch 12, gears 11, 13, 15, 16 and shaft 17. Passing the turn to drive through slip clutch 12 allows it to tune and choose a loop as dispensing SPARKS from the exhaust drum 7. As the turns arrive at the accumulation drum 2 and descend along the tapered portion, the wire section between the accumulation drum and the clamp relaxes and the drum is kept from rotating by the overtaking sleeve 20. Relaxing the wire between the drum and the clamp allows winding a large number of turns on the working surface of the drum without overlapping the turns. After the change of the coil, the end of the wire is easily released and fixed on the coil. After that, the spinner starts up the spinner, and the drive is automatically switched to the accumulation reset mode. The wire, pulling on, begins to rotate the drum 2 in the direction opposite to arrow D. The overtaking coupling 20, wedging up, allows the drum 2 to rotate freely. At the same time, the carrier 3, carried away by the wire, begins to rotate together with the drum 2, and the overtaking clutch 19 wedges and rigidly ties the carrier 3c with the drum 2. Thus, the drum 2, the LED 3 and the drum 7 will rotate as one piece along the arrow E, removing the drum 2 and putting the turns on the drum 7. According to the technological conditions, it is necessary to wind the wire nnym of tension. Since the diameter of the storage drum 2 is larger than the diameter of the exhaust drum 7, in order to maintain the tension force in the wire constant, it is necessary to additionally increase the brake torque on the drum. This function is performed by a slip clutch, in which, when the carrier 3 rotates in the opposite direction, an increased slip in the discs occurs, which creates an additional braking torque. After all the turns come off the drum 2, the carrier 3 with the drum 2 is stopped. The freed carriage can be used to change the coil on another unit. The wire coming from the drum 7 to the coil has the same tension, as the diameter of the drum has become smaller. The invention allows to simplify the design, reduce the number of controls, increase the reliability of the device, and facilitate manual labor. Claims of the Invention A drive to a multi-thread winding apparatus containing a housing, a storage drum, kinematically connected to a storage drum, drove with a drive, having a slip coupling, characterized in that, in order to simplify maintenance and increase reliability of operation, it is equipped with two overtaking sleeves , with one overtaking clutch mounted on the carrier and kinematically connected with a storage drum, and the second overtaking clutch mounted on a storage drum and connected with the housing. Sources of information taken into account during the examination 1. USSR author's certificate No. 112171, cl. B 21 C 47/04, 1957. 2. USSR author's certificate number 172708, cl. B 21 C 47/04, 1965. : SW7 / I si } b / 1 18