FR2663916A1 - AUTOMATIC UNLOADING DEVICE FOR TEXTILE COILS. - Google Patents

Abstract

Device for automatic unloading of textile reels, consisting of a pair of supports (22) arranged in mirror image on the sides of the respective collecting unit (18), said supports (22) comprising first guide means (28) provided for the supply of empty cans (27), second guide means (29) for the temporary stopping (31, 35) of said cans (27), third guide means (40) provided for the sliding of the prepared spool (17) and fourth guide means (38) for discharging the prepared reel (17) to a standby position (17 '' ').

Description

i

  AUTOMATIC UNLOADING DEVICE FOR TEXTILE COILS

SCOPE

  The present invention relates to a device for

  automatic unloading of textile spools.

  The object of the invention relates more particularly to a device suitable for being applied to any textile spool collection unit for the purpose of automatically discharging them, as well as for automatically loading new supports for these same spools.

  and start a new textile thread winding cycle.

  The device can be applied to all machines for the production of coils or rolls, but it is particularly and without limitation intended for machines for processing continuous fiber yarns, such as machines

to texture and stretch / texture.

KNOWN TECHNIQUE

  In the current state of the art, numerous devices are known capable of automatically discharging the coils collected on the production machines of

  rolls, spools or other similar confections.

  These devices are generally of two types: either of the walkman type, moving along the machine so as to serve several production units, or of the fixed type to serve

  each production unit individually.

  Both types of known devices have been developed primarily to operate on machines that process staple fiber yarns, as well

natural than chemical.

  The applicant is not aware of automatic devices such as those which have just been described which are operated on machines processing continuous fiber yarns, such as texturing machines and stretching / texturing machines which we will refer to in the

continuation of the description.

  The configuration of these machines and the treated yarns pose problems which are appreciably different from those encountered in the field of staple fibers.

DESCRIPTION OF THE INVENTION

  The applicant studied, tested and produced an automatic device for unloading textile spools,

  especially for continuous fiber yarns.

  To this end, the invention provides an automatic unloading device for textile spools, suitable for being applied to any collection unit for textile machines for discharging the made-up spools as well as for loading the new cans for successive windings, characterized by the fact that it consists of a pair of supports arranged in a mirror on the sides of said collection unit, said supports having first guide means provided for feeding and sliding said empty cans, second guide means connected and placed below said first guide means and provided with means for temporarily stopping said cans, third guide means provided for the sliding and evacuation of the reel made from the respective reel arm, fourth guide means provided to evacuate the reel made up to a standby position, in said positio n waiting being provided means for temporarily stopping the coil which can be actuated from the outside. The device according to the invention consists of a group which can be applied individually to

  each collection unit for the shaped yarn.

  This group has means for evacuating the reels made up, these reels being arranged in a waiting position accessible by the operator of the machine. These evacuation means cooperate with the spool-carrying arms usually present on the

collection of textile threads.

  The device according to the invention also comprises elements making it possible to house and supply the empty support, or bobbin, for the new coil to be made. The bobbin is first placed in the standby position on said housing elements and then transferred to the spool holder arm when the spool

  previously made abandons the latter.

  The device according to the invention also cooperates with means ensuring the cutting, the gripping and the maintenance of the thread in a given position during the unloading operations of the made-up reel, as well as with means capable of bringing the thread back onto the bobbin. empty, so you can start a new one

winding cycle.

  It is useful to remember that on machines such as texturing machines the wire is supplied with

  continuous even during the phases where it is not rewound.

  Unloading of the made-up reel from the standby position and loading of empty cans can be carried out manually by the operator, but the device also provides for cooperation with

  any automatic means provided for this purpose.

  These particular features of the invention, as well as others, will emerge more clearly in the following of the

description.

ILLUSTRATION OF DRAWINGS

  In the accompanying drawings, given here by way of non-limiting example only: FIG. 1 is a schematic view of a production machine on which it is possible to apply the device according to the invention; Figure 2 is a side view of an embodiment of the invention; Figure 3 is a front view of a detail of Figure 2 along arrow A; Figure 4 is a front view of a detail of Figure 2 along arrow B; Figure 5 is a front view of a detail of Figure 2 along arrow C; Figure 6 is a plan view of a detail of Figure 2; Figure 7 is a front view of a detail of Figure 2 along arrow D.

DESCRIPTION OF THE DRAWINGS

  Figure 1 schematically shows a stretching / texturing machine 10 having two independent working fronts, each of which is provided with a creel 11 for the supply coils 12, with a first

  texturing 13 and a second texturing oven 14.

  The wire 15, which unwinds from the supply coils 12, passes, after the first oven 13, on a texturing spindle 16, then through the second oven 14 and is then wound on the coils 17 in the units of

respective windings 18.

  This solution is that which is shown in FIG. 1 However, the wire can also pass only through the oven 13 and then arrive from above on the

  winding units 18 without passing through the second oven 14.

  In the illustrated case, these winding units 18, all identical, are arranged on three superposed stages, towards which the wires 15 are supplied.

  following suitably deviated routes.

  In FIG. 1, the reference 19 designates essentially identical groups for supercharging

  wire 15 in places that require this function.

  FIG. 2 illustrates the device according to the invention as it is applied to a winding unit 18 forming part of a machine 10 of the type shown on

Figure 1.

  The winding unit 18 is known per se and is fixed to brackets 19 located on each front of the machine 10 at each position for making the coils. This unit 18 has as main groups the spool-carrying arm 21 and a drive cylinder 20 for the coils being wound 17, said cylinder being connected to a group of guide wire back and forth (not shown). Said reel-carrying arm 21 is usually C-shaped and it comprises between its branches the reel being made 17, which is supported by tailstocks which lock it in the axial direction for

the winding operation.

  The device according to the invention has a frame 22 comprising a substantially horizontal upper part 23 which in the present case is fixed by screws 24 to the console 19 of the superposed winding unit 18. Said frame 22 comprises two inclined parts, namely, a front part 25 and a rear part 26 to which a guide for the empty cans 27 is subjected. This guide consists of a first guide portion 28 inclined downwards and towards the inside the machine 10 and by a second guide portion 29 connected by its end portion to the first portion 28, also inclined downwards, but outwards from the

machine 10.

  Figure 3 is a partial view, along arrow A of Figure 2, from the top of the front part of the

  chassis 22 and the first guide portion 28.

  This first guide portion 28 has a wing 30 on which the bobbin 27 rests,

  shown in broken lines in Figure 3.

  As can be seen in Figure 3, the first guide portion 28 has a symmetrical configuration with respect to the front part 25, so as to be able to guide cans 27 operating on units

contiguous winding 18.

  The same is true for the second portion of

guide 29.

  It can thus be affirmed that, in the example illustrated, the device of the invention has two half-chassis 122 (in FIG. 3 the reference 125 designates the two front half-parts), located on the sides of the unit. winding 18, between which slide the cans 27, each of these half-chassis being complementary to the half-chassis 122 serving the units

contiguous winding 18.

  In the end portion of the first guide portion 28 the wings 30 are absent, so that the bobbin 27, which is rolled along the first guide portion 28, can be transferred to the second guide portion 29 , as illustrated by the reference 127

in figure 2.

  The stop of the bobbin 127 on the guide 29 is determined by a stop group 31 located on the same

guide 29.

  Said stop group 31 can be of the piston type 32 acting directly on the bobbin 127, as shown in the left half of FIG. 4, which represents a partial view of this same group according to the

arrow B in figure 1.

  The bobbin 127 is also held in position by a lever 33 oscillating on a pivot axis 34, the function of which is to gradually release the bobbin 127 so that it can be positioned correctly

  between the tailstock of the spool arm 21.

  This lever 33 has two elements orthogonal to one another, respectively 35 and 36, the first of which is in contact by its end portion with the bobbin 127, while the second 36 is in contact with the arm 21 by through its pebble

  reaction 37, as can be seen in Figure 5.

  The rotation of the lever 33 around the pivot axis 34 (position shown in broken lines in FIG. 2) takes place, as already said, under the action of the arm 21 when the reel being made 17 has reached the maximum desired diameter (position 17 ′ in FIG. 2) and the arm 21 is automatically raised, using known means, to bring the assembled coil into the position of

  unloading of the arm 21 (position 17 '' in Figure 2).

  The front part 25 of the chassis 22 has in its end part a straight guide 38, inclined downwards when looking from the center of the machine 10 towards the outside, on the lower part of which is fixed, by suitable means 42, an actuator 39 of a

  guide 40 advantageously retractable.

  This retractable guide 40 is arranged parallel to the straight guide 38, so that once actuated along arrow 41 and brought into the operating position (shown in broken lines in Figure 2) it can constitute an extension of the wings of the

guide 38.

  In this way, the assembled spool, when released by the arm 21, finds support for its own can and can be evacuated, by gravity, until it is brought into a waiting position, indicated

in 17 '' 'in Figure 2.

  On the upper surface of the retractable guide is fixed an elastic element 43, such as a metal blade or the like (indicated only in FIG. 2), the purpose of which is to brake initially and then to make the descent of the reel at 17 progressive. "'', as well as to stop in position the new bobbin 127 which

  descends along the second guide portion 29.

  Figure 6 is a plan view of a detail of Figure 2, on which we can see the actuating member 39 of the retractable guide 40, with its fixing means

42 at guidance 38.

  To retain the coil in the standby position 17 "'' at the end of the guide 38, a stop group has been provided, fixed on the lower and end part of the front part 25 of the chassis, constituted by a lever 'stop 44, oscillating on a pivot 45 under the action of a lever

reaction 46.

  The reaction lever 46 can be actuated from the outside by a piston means, designated by the reference 47 in FIG. 2, which causes the group of levers 44 and 46 to take the position shown in broken lines on

said figure 2.

  In this position of the stop group, the assembled coil can be freely evacuated from the

device according to the invention.

  FIG. 7 is a front view of the stop group which has just been described, with the stop levers 44 in

coil stop position.

  The piston means 47 may also be used in cooperation with automatic groups for evacuating the coils made up and placed in position 17 '' ', said automatic groups also being able to supply

  empty cans 27 the device according to the invention.

  In FIG. 2, the references 48, 49 and 50 schematically show auxiliary means of the unloading device according to the invention, and more particularly a means of cutting (48) of the wire 15 when it is lifted, a suction means (49 ) from the end of the cut wire 15 and a means of "launching" (50) said end of the wire onto the new bobbin 27 upon restarting the operation of

winding.

  Although the description focused on a form

  preferred embodiment of the invention, it goes without saying that it can be the subject of numerous variants, which will appear obvious to a person skilled in the art, without however

  go beyond the scope of the claims which follow.

Claims (14)

R E V E N D I C A T I O N S   1 automatic unloading device for textile spools, suitable for being applied to any collection unit (18) for textile machines (10) for discharging the made-up spools (17) as well as for loading the new cans (27) for successive windings, characterized by the fact that it consists of a pair of supports (22) arranged in a mirror on the sides of said collection unit (18), said supports (22) having first guide means (28) provided for the feeding and sliding of said empty cans (27), second guide means (29) connected and placed below said first guide means (28) and provided with temporary stop means (31,35) of said cans (27 ), third guide means (40) provided for the sliding and evacuation of the made-up reel (17) from the respective reel arm (21), fourth guide means (39) provided for evacuating the bo made-up bin (17) to a standby position (17 '' '), in said standby position (17 "' ') being provided with means for temporarily stopping (44,46) the coil   (17) can be operated from the outside (47).   2 Device according to claim 1, characterized in that each support (22) is constituted by two half-supports (122) serving   contiguous collection units (18).   3 Device according to claim 1 or 2, characterized in that said first guide means (28) are inclined downward and inward of the machine (10).   4 Device according to any one of   previous claims, characterized in that   said second guide means (29) are inclined towards the   down and out of the machine (10).   5 Device according to any one of   previous claims, characterized in that   said first guide means (28) have a portion for transferring the empty can (27) onto   said second guide means (29).   6 Device according to any one of   previous claims, characterized in that   said temporary stop means (31) are means for   piston (32) acting on the bobbin (27).   7 Device according to any one of   previous claims, characterized in that   said temporary stop means (35) are lever means (35,36) acting on the bobbin (27) and actuated by the spool holder arm (21).   8 Device according to any one of   previous claims, characterized in that   said third guide means (40) are means advantageously retractable.   9 Device according to any one of   previous claims, characterized in that   said third guide means (40) are provided with a clean actuator.   10 Device according to any one of   previous claims, characterized in that   said third guide means (40) comprise elastic means (43) for cooperation with the cans   voids (27) and the assembled coils (17).   11 Device according to any one of   previous claims, characterized in that   said third guide means (40) are connected and can be positioned in line with said fourth guide means (38).   12 Device according to any one of   previous claims, characterized in that   said temporary stop means (44,46) of the assembled coils (47) can be actuated manually or automatically. 13 Device according to any one of   previous claims, characterized in that it   cooperates with automatic means for evacuating the assembled coils (17) from the standby position   (17 "'') and feeding empty cans (27).   14 Device according to any one of   previous claims, characterized in that it   cooperates with sectioning (48), suction (49) and launching (50) means of the end of the wire (15) sectioned at each change of the assembled coil (17) and at   start of a new winding cycle.