RU2505371C1 - Long resilient material winder - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: proposed winder comprises housing 1 accommodating worm shaft 2 with bobbin 3 fitted thereon at its left side and fear 4 fitted thereon at the right. Precise displacement of actuator without extra adjustments is ensured by making shaft worm engage with worm wheel 5 engaged with cam 6 with cardioid closed profile of working surface whereon roller 7 roll fitted on axle 8 inserted into slider 9 displacing in guides of housing 1.Two pins 10 are fitted at slider end to allow working material (wire, conductor, cable, etc) to pass there between. Worm shaft gear 4 engages with gear 11 fitted on drive shaft 12 with handle 13 secured thereat. Gear 14 engages with gear 11 and has the teeth in number equal to that of gear 4. It is fitted on shaft 15 with output end connected with the shaft of turn counter 16. Rocker 17 fitted under gear 4 on axle 18 has its ledge forced into the socket between teeth of gear rim by spring 19.

EFFECT: higher reliability, simplified design.

9 dwg

Description

The invention relates to industries related to the production of windings and coils for electrical products using long materials (wires, wires, cables, etc.).

A device for winding and / or unwinding a flexible long material with an adjustable speed of winding or unwinding, consisting of a housing, a drive, a differential mechanism, a receiving and feeding unit and a large number of kinematic connections (see No. 20155764, B21C 47/00, B65H 79 / 00, B66D 1/00, 07/15/1994).

The disadvantage of this design is the presence of a large number of kinematic connections between the actuators of the device.

A known machine for winding wire, consisting of a bed, a winding mechanism with a belt drive, a pickup mechanism with a pickup and controls (see No. 84753, B21C 47/02, 07/20/2009).

The disadvantage of this design is the presence of a large number of controls and the movement of the executive bodies.

A device for manual winding of coils is known, consisting of a bed, a shaft for a winding coil and a counter of turns (see No. 108725, B21C 47/18, 09/27/2011).

The disadvantage of this design is the presence of a complex electronic tracking and control circuit.

A device for laying wire on a reel (No. 21035, B21C 47/10, 12/20/2001), adopted as a prototype. The device comprises a rotation drive located in the housing and a reciprocating movement of the pickup leash. The rotation drive includes a worm shaft with a worm, a worm wheel connected to a cam, a rod (slider) with fingers.

The disadvantages of the prototype:

- the presence of a large number of gears of the drive and additional controls;

- the cam controlling the operation of the layout rod has an external open profile of the curve, which entailed the installation of two fingers for working in two directions, and in this kinematic pair there is sliding friction, which contributes to the rapid wear of rubbing surfaces and increased contact forces.

The proposed invention solves the problem: improving reliability in the work and simplifying the design.

The technical result obtained by the implementation of the invention is to reduce the number of kinematic connections of the actuating element, its precise movement during operation without additional adjustment.

This technical result is achieved in that in a device for winding a flexible long material, including a worm shaft with a worm located in the housing, a worm wheel connected to a cam, a slider with fingers, new is that the cam is rigidly connected to the worm wheel and is made with a working surface having a cardioid closed profile, which, when rotated through 180 °, provides laying of one layer of material along the entire length of the winding coil installed on one end of the worm shaft, on the other end of which the gear is engaged, which engages with the beam acting as a lock when the worm shaft stops, and with the drive gear mounted on the drive shaft and engaged with the gear mounted on the shaft connected to the speed counter shaft, a roller is mounted on the axis pressed into the slider with the ability to run on the working surface of the cam.

Technical solutions with features distinguishing the claimed technical solution from the prototype are not known and do not follow explicitly from the prior art. This suggests that the claimed solution is new and has an inventive step.

The invention is illustrated by drawings, where

- figure 1 is a kinematic diagram of a device for winding;

- figure 2 is a kinematic diagram (scan along the shafts) of the device for winding;

- figure 3 is a view A (kinematic diagram of the latch);

- figure 4 - view B (groove fixation rocker);

- figure 5 - device for winding (main view);

- 6 - a device for winding (top view);

- Fig.7 is a cross section of the main view of the device for winding along AA;

- Fig. 8 is a view of B;

- Fig.9 - view B.

A device for winding a flexible long material consists of a housing 1, in which a worm shaft 2 is placed, on which are installed: on the left side is a winding coil 3, and on the right side is a gear 4. The worm of this shaft is engaged with the worm wheel 5, which connected to the cam 6. The working surface of the cam 6 has a cardioid closed profile, which, when rotated through 180 °, provides laying of one layer of material along the entire length of the winding coil. A roller 7 is installed around the working surface of cam 6, mounted on an axis 8, pressed into a slider 9, which moves in the guides of the housing 1. Two fingers 10 are installed at the end of the slide, between which winding material is passed (wire, wire, cable, etc. ) The gear wheel 4 of the worm shaft engages with the gear 11 mounted on the drive shaft 12 with the handle 13 fixed thereon. With the gear 11, the gear 14 is engaged, having the number of teeth equal to the number of teeth of the gear 4, and which is mounted on the shaft 15, the output end which is connected to the shaft of a four-digit counter 16 revolutions (turns). The beam 17, mounted under the gear 4 on the axis 18, with its protrusion enters the cavity between the teeth of the gear ring of the gear under the action of the spring 19. The beam performs the function of a lock that allows you to stop the winding process in any place. The output of the beam from the mesh with the gear 4 can be carried out using the handle 20, and fixing it in the withdrawn position is carried out using a T-shaped groove 21 in the wall of the housing.

For operation, the device for winding flexible long material is mounted on the table 22 together with the feed reel 23 and the leveling and tension unit 24.

Flexible material (wire, wire, cable, etc.) from the feed reel 23 is passed through dies and refilled between the rollers of the straightening and tensioning unit 24, and if the source material is a wire requiring straightening (straightening), the latter is provided by moving the movable rollers of this block to the required size. Thus, a curved path of movement of the wire is obtained, that is, its tension is created and, accordingly, the straightening of the wire. If the source material is wire, cable, etc. (not requiring straightening), then the movable rollers of the block are bred as much as possible, and the material moves only through the dies, without touching the rollers. The tension in this case is created by braking the rotation of the axis of the bobbin in the support.

Next, the material is pulled to the winding coil 3, passed into the gap between the fingers 10 of the slider 9 and its end is fixed on the flange of the coil. On the counter 16 revolutions (turns), the readings are reset by pressing the button, the handle 20 is lifted up to the stop along the groove 21 and moves left and right to fix the rocker arm 17 in the free position, while the gear 4 disengages from it. Then, by turning the handle 13 mounted on the shaft 12, the gears 4 and 14 mounted on the shafts 2 and 15 are rotated clockwise through the gear 11. In this case, the winding coil 3 mounted on the worm shaft 2, the worm wheel 5, which is meshed with the worm of this shaft and connected to the cam 6. Thereby, the cam receives rotation from the worm shaft. The roller 7, rolling around the closed cardioid profile of the working surface of the cam 6, moves the slider 9 through the axis 8 along the axis of the shaft 2 and the coil 3. That is, the reciprocating movement of the slider is provided by a kinematic pair of cam-slider. There is rolling friction, which helps to reduce the rapid wear of rubbing surfaces and reduce contact forces. The fingers 10, pressed into the slider, moving with it, are laid, the winding material passed into the gap between them onto the reel with a step specified by the cam profile curve. A synchronously rotating shaft 15 rotates a shaft of a four-digit counter 16 revolutions connected to it, while one revolution of the coil corresponds to one revolution of the counter shaft. The cam profile is designed and made in such a way that when it is rotated through 180 °, one layer of wound material is laid along the entire length of the coil.

If the manufacturing technology of the coil provides for the laying of each layer with insulating material or pouring with certain compositions, then it is necessary to fix the worm shaft 2 with the coil 3 and gear 4 from the rotation using the rocker arm 17. To move the handle 20 along the groove so that it fits into the vertical groove - the tooth of the rocker arm will enter the trough of the gear ring 4 automatically, while the material tension is maintained.

Using the proposed technical solution will improve the reliability of the device and simplify its design by reducing the number of kinematic connections of the actuator, accurate movement during operation. When rolling the roller along the closed cardioid profile of the cam working surface, rolling friction takes place, which helps to reduce the wear of rubbing surfaces and reduce the contact forces in the kinematic cam-slider pair, which also increases the reliability of the device.

Claims (1)

A device for winding a flexible long material, including a worm shaft with a worm located in the housing, a worm wheel connected to a cam, a slider with fingers, characterized in that the cam is rigidly connected to the worm wheel and is made with a working surface having a cardioid closed profile, providing 180 ° rotation, laying one layer of material along the entire length of the winding coil mounted on one end of the worm shaft, on the other end of which is placed a gear that engages with the beam, in It performs the function of a latch when the worm shaft stops, and with a drive gear mounted on the drive shaft and engaged with the gear mounted on the shaft connected to the shaft of the revolution counter, while a roller is mounted on the axis pressed into the slider so that it can run around the cam working surface.

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