FR2560863A1 - RETRACTABLE WINDING AXLE FOR WINDING FLAT YARNS - Google Patents

Abstract

RETRACTABLE WINDING SHAFT 1 FOR WINDING BALLS OF WIRE OR OTHER FLATS, INCLUDING A COMPONENT 5 MOUNTED ON A SHAFT 2 WITH FIRST ARMS 6 HOUSES IN A HINGED MANNER ON THIS LATTER, WITH A HEAD 7 MOVABLE PARALLELLY AND COAXIALLY WITH THE SHAFT 2 AND WITH SECOND ARMS 8 HOUSES IN A HINGED WAY ON THIS LATTER, CHARACTERIZED IN THAT THE FREE ENDS OF THE FIRST AND SECOND ARMS 6, 8 ARE DIRECTLY CONNECTED AND ARTICULATED TO FORM A WINDING BODY. THIS WINDING AXLE ALLOWS DIRECT WINDING OF FLAT BALLS.

Description

The invention relates to a retractable winding spindle.

  for winding balls of wire or other, flat

  both an insert mounted on a shaft with first arms housed in an articulated manner on the latter, with a head movable parallel and coaxially with respect to the shaft and with second arms housed in an articulated manner

on the latter.

  On a known retractable winding axis (DE-OS 26 43 747) the free ends of the first and second arms 0O are connected by struts parallel to the shaft whose distance from the shaft can be reduced during the retraction of the axis so that you can remove the ball

  axis axis. The struts serve as the bo-

  hoeing for long balls which are balls present

  both a pronounced axial elongation.

  Recently, it is requested to offer yarn or other in the form of flat balls, that is to say balls which

  have a substantially lower axial elongation than the pe-

  long lots. The long balls are surrounded by a ban-

  derole while the flat balls are provided with a label

  arrow quilt introduced into the central hole of the ball.

  Until now, flat balls have been manufactured

  quees by first winding on the winding axis a long ball which was then flattened axially in the form of a flat ball. However, the elastic return of the

  ball does not allow to obtain a really flat ball

  te with minimum axial elongation. In addition, the flattening operation

  subsequent weaving of long balls to transform them

  in flat balls represents an additional operation.

  The object of the invention is to produce a spool axis

  ge allowing to wind flat balls directly.

  The first embodiment of the invention

  supports this problem by connecting the ends of the first and second arms, directly articulated, to form

a winding body.

  Unlike the known winding axis, there is

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  so no struts, so the coil body

  ge supporting the ball consists practically of the only arms whose free ends are connected in a way

  articulated, and that it thus presents a relative axial elongation

tively weak.

  According to another embodiment of the invention-

  tion, we can remove the arms to place between the room

  attached and the head an elastic rubber shape and re-

  linked to the latter, acting as a winding body.

  This winding body may also have an elongation

relatively weak axial.

  Preferred embodiments will be described-

  of the invention with reference to the accompanying drawings on the-

which:

  - Fig. 1 shows a first embodiment

  tion of a winding axis for flat balls, in the expanded position; - Fig. 2 shows the winding axis of FIG. 1 in the retracted position;

  - Fig. 3 is a top view of the bobbin axis

  swims in the direction of arrow A in Fig. l; - Figs. 4 to 6 show the winding axis of Figs. 1 to 3 covered with a coating; - Fig. 7 shows the winding axis of FIG. 1 or 4 in the expanded position, with a ball wound on it; - Fig. 8 illustrates the winding axis of FIG. 7 in the retracted position and - FIG. 9 is a top view in the direction of

arrow B in FIG. 7.

  The winding axis 1 shown in different po-

  operating positions in Figs. 1 and 2 presents an ar-

  bre hollow 2 which can be placed as we know in a man-

  motorized rotation clamping machine of a winding machine

  age of the balls. Generally, several winding axes are placed on the machine next to each other to allow the simultaneous winding of several balls. In the same way,

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  a rotary winding fin can be assigned to each winding axis 1 to deposit the wire on the winding axis 1 which is also in rotation, the relative inclination of the axes of rotation of the fin and of the winding axis can be modified during the winding process to obtain

  well-defined ball turns. As shown in the fig-

  re, a rod 3 is movable inside the shaft 2. Its upper end (in Fig. I and 2) with reduced diameter comes out of the shaft 2 and its thicker lower end stressed by a spring 4 resting in the hollow shaft 2 tries to push down the shaft 2, the rod 3 being held in FIGS. 1 and 2. A hollow insert 5 is fixed on the shaft 2 to allow the rod 3 to pass and is equipped with eight radially oriented slots. Arms 6 are articulated in the slots and can pivot in the

  radial planes assigned to the slots. Rod 3 carries to its ex-

  free end opposite to the insert 5 a head 7

  on which are similarly housed eight arms 8 pivoted

  in the radial planes. The free ends of the arms 6

  and 8 are connected to each other and articulated to form

  sea a winding body. Fig. 1 shows the winding axis

  in the expanded position, FIG. 2 shows it in retracted position

  tee. In the expanded position (Fig.l) the arms 6, 8 form a relatively narrow winding body making it possible to wind the wire in a flat ball. In the retracted position (Fig. 2) the body

  winding formed by the arms 6, 8 is folded by a movement

  relative ment between the shaft 2 and the rod 3 so that

  Easily remove a wound ball from the winding spindle.

  The finished ball is a flat ball, thanks to the low al-

  lengthwise of the expanded winding body formed by the

arm 6, 8.

  The flat ball can be directly wound on

arms 6, 8.

  To avoid jamming the wire between the arms 6, 8, 3 i and in particular at their point of reciprocal articulation, the embodiment shown in FIGS. 4 to 6 of a winding axis It according to the invention has above the arms 6, 8, a coating 12 in the form of a bellows whose lower and upper ends are connected to the insert 5 and to the head 7 The covering is made of flexible material, for example textile. This material can also

  have the elastic properties of rubber. As my-

  see Figs. 4 to 6, the coating adapts to the ex-

  banded or retracted from the winding shaft, in the cor-

  of arms 6, 8 (Fig. 1 and 2) and its outer face

  lO re forms the winding body on which the

wire turns.

  Figs. 7 to 9 show the ball of wire 13 wound

  using the winding spindle ll. We would get the same choice

  se with the winding axis 1 (Fig. 1 to 3), that is to say without coating 12. In FIG. 7 the flat ball 13 is in the typical flattened position on the winding axis 11 which, for its part, is expanded (in accordance with FIGS. 1 and 4). In Fig. 8 the winding axis ll is retracted (in accordance with

  Fig. 2 and 5). As a result, the flat ball 13 is tempo-

  usually elongated and takes a slightly more rounded shape

  of. However, after removing the winding shaft, it retracts

  tee, the ball 13 returns to the desired position of FIG. 7 to keep it. Then an arrow label is introduced into the central hole of the flat ball 13 formed by the winding axis. Finally, the flat ball labeled with

  this way is sent to a packing station.

  On another embodiment of a bo-

  hoeing according to the invention, we can do without

  arms 6 and 8. They are replaced by a rubber shape-

  elastic choux which follows the shape of the coating shown in Figs. 4 and 6 during the winding operation. This elastic rubber shape does not differ from the coating 12, this embodiment does not

  the subject of a diagram. In the retracted position, the rubber shape

  elastic choux conforms to the shape of the covering 12 described on

  Fig. 5. While the covering 12 of the embodiment con-

  shape in Figs. 4 to 6 is supported by arms 6, 8 which

  shape, elastic rubber shape is self-

  bearing and does not need support.

  The elastic rubber shape is connected to its lower and upper part to the insert 5 and to the head 7 of the winding axis.

  On the preferred configuration of the bo-

  hoeing equipped with an elastic rubber shape serving as

  winding body, mounting the elastic rubber form

  tick on the winding shaft is airtight, which

  puts compressed air in the form so that it more easily retains its expanded form (Figs. 4 and 7). The air

  colmprimé escapes during the retraction of the coil axis-

ge (Fig. 5 and 8).

  It can happen, on the winding axis of Figs. 1 to 3, that at the start of winding the turns of the wire come

  operate between arms 6, 8 and hang inside the pe-

  lot in the form of crazy turns. Consequently, the preferred embodiment of the invention is that of FIGS. 4 to 5 or the one with the elastic rubber shape placed

  between insert 5 and head 7. To work with the a-

  xe of Figs. 1 to 3, it is advantageous to connect the reciprocal articulation points of the arms 6 and 8, in the direction of the circumference of the expanded axis, by a flexible element and

  preferably elastic, for example a rubber thread. This-

  the connection to the circumference of the articulation points

  te that the inner turns collapse.

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Claims (4)

R E V E N D I C A T I O N S   i - Retractable winding axis (1) for the winding   Age of balls of wire or other flat, comprising an insert (5). mounted on a shaft (2) with first arms (6) housed in an articulated manner on the latter, with a head (7) movable parallel and coaxially with respect to the shaft (2) and with second arms (8) housed so   articulated on the latter, characterized in that the ex-   free hoppers of the first and second arms (6, 8) are di-   connected and articulated to form a body of bobi- swim.   2 - Winding axis according to claim 1, character-   laughed in that the arms (6, 8) are covered with a coating (12) in flexible material.   3 - Retractable winding axis for winding   balls of wire or other, flat, comprising a separate piece   bearing (5) mounted on a shaft (2) and a detachable head (7)   parallel and coaxial to the shaft, characteristic   laughed in that an elastic rubber form is placed in   be the insert and the head (5, 7), connected with them ci and serves as a winding body.   4 - Winding axis according to claim 3. character-   laughed in that the form is expandable by compressed air.