EP1773703B1 - Winding device with a removable traversing device - Google Patents

Abstract

A leasing device including at least one first part connected to a frame element of a reeler and at least one second part including a mechanism for depositing and guiding at least one thread. The first part and the second part are connected to one another such that the second part occupies a first working position, in which the thread can be deposited in the form of a reel, and a second position, in which the second part is separated from the first part, corresponding to a maintenance phase of the second part.

Description

The present invention relates to an improvement made to a device for ensuring the drawing and winding of yarn organic or inorganic material, especially glass.

It is more particularly an improvement to a removable crimp device.

It is recalled that the manufacture of reinforcing glass son results from a complex industrial process which consists of obtaining threads from threads of molten glass flowing through the orifices of dies. These filaments are drawn as continuous filaments, and then these filaments are gathered together into base yarns, which yarns are then collected as a bobi ne.

For the purposes of the invention, the coils are in the form of straight-side windings, or in the form of cylindrical windings.

The form of coil is made using winders, which as their name suggests, are responsible for winding at very high speed (about 10 to 50 meters per second) the glass son that were previously sized .

These winders ensure the drawing and winding of these yarns and the operating parameters of these winders condition with those of the die the dimensional characteristics of the yarn, in particular the title expressed in tex (the tex being the weight in grams of 1000 meters fiber or yarn).

Thus, in order to guarantee a constant yarn count during the entire elaboration phase of the reel, despite the increase in its diameter, the speed of the reel winder is enslaved so as to ensure a linear winding speed. constant wire although its angular velocity varies, this speed control being achieved by decreasing the speed of rotation of the spindle which supports the coil as a function of the increase in its diameter.

Another important parameter which determines the obtaining of a coil of optimal quality consists in its ability to be easily unrolled, without the presence of loops, parasitic nodes, with limited friction.

To do this, it is necessary that the axial distribution of the son wound live on the rotating spindle is optimal. For this purpose, the winder is provided with one or more wire guides which ensure the axial distribution and positioning of the wires along one or more coils by a reciprocating movement synchronized with the rotation of the spindle. guide wire or these son guides are part of a subset of the winder which is generally called crimping device.

This crimping device is mounted on a movable support allowing its permanent repositioning during the winding, parallel to the spindle axis, to allow it to maintain a certain distance between the son guide (s) and the outer cylindrical surface of the spindle. coils whose diameter evolves throughout its or their construction.

The known winders essentially consist of a frame generally positioned below a die, this frame supporting the crimping device and at least one spindle movable in rotation, this spindle being adapted on the one hand to generate the spool and on the other hand, to support the latter.

Conventionally a crease device mainly comprises at least one grooved cylindrical cam which provides the function of back and forth of the son guides or guides, the latter being guided in translation between two strips parallel to the axis of the cam. The cam is rotated by a motor through a mechanical transmission and continuously sprayed by spray nozzles which ensures its permanent cleaning ensuring a non-fouling due to the environment of the process.

To obtain the total winding capacity, it is necessary that the crimping device as previously described or any other equivalent device, can describe the length of the coil. For this purpose, in the known winders, the slider is movably mounted in a movement back and forth in translation on a shaft secured to the frame and parallel to the axis of the spindle, this second translation movement thus making it possible to cover the length of the winding.

So that the winding of the coil is carried out optimally, it is necessary that the operation of the crimping device is also, it is then conceived that one proceeds at regular intervals to a maintenance phase at the device of encroisure, this phase of maintenance thus leading to an interruption of the production that one seeks of course to limit the frequency and the duration.

WO 95/07228 discloses a winder according to the preamble of claim 1.

The present invention therefore aims to overcome these disadvantages by providing a crimping device that optimizes the maintenance phases on the crimping device.

For this purpose, according to the invention, the winder with a crimping device that can move closer to or away from the outer surface of a spool of thread, comprises at least a first portion connected to a frame member of the winder and at least a second part comprising means for depositing and guiding at least one wire, said first part and second part being connected to each other so that the second part occupies a first working position in which the wire can be deposited in the form of a coil and a second position in which the second part is separated from the first part corresponding to a maintenance phase of the second part, the first part and the second part comprising complementary guide means which allow a relative movement between the first position and the second position of the second part, the guide means being adapted to a relative translational movement of the second part relative to the first part to separate the second part of the first part, the second part in the form of exchangeable removable cassette comprises at least one grooved cylindrical cam which provides the function of back and forth of the son guides, and the winder is characterized in that the latter are guided in translation between two strips parallel to the axis of the cam and in that the crimping device comprises spray nozzles for cleaning the cam, the first part and the second part each comprising mechanical coupling means for ensuring the setting in motion of said cam and means for connecting a cleaning fluid of said cam and son or guides.

Thanks to these arrangements and in particular to the presence of a crisscross device in two separable parts (separable cassette), it is possible to carry out maintenance phases practically in masked time. The realization of a cassette in two parts, one of which remains integral with the frame, the other being removable and interchangeable, allows to constitute for the latter a spare part, which can be quickly replaced by a similar piece, almost without any interruption of production.

• Les moyens de guidage comportent d'une part, au moins un rail faisant saillie au niveau de la première partie et d'autre part, au niveau de la seconde partie, au moins une rainure adaptée pour coopérer avec ledit rail,
• les première et seconde parties comportent des moyens de verrouillage adaptés pour libérer les moyens de guidage lorsque la seconde partie du dispositif d'encroisure est en position de travail,
• Les moyens de connexion du fluide de nettoyage sont obturables lorsque la seconde partie du dispositif d'encroisure est séparée de la première partie.

In preferred embodiments of the invention, one or more of the following may also be used:

• The guiding means comprise on the one hand, at least one rail protruding at the first part and secondly, at the second part, at least one groove adapted to cooperate with said rail,
• the first and second parts comprise locking means adapted to release the guide means when the second part of the crimping device is in the working position,
• The connection means of the cleaning fluid are closable when the second part of the crimping device is separated from the first part.

Other features and advantages of the invention will become apparent from the following description of one of its embodiments, given by way of non-limiting example, with reference to the accompanying drawings.

• La figure 1 est une vue schématique de face d'un bobinoir incorporant un dispositif d'encroisure selon l'invention,
• La figure 2 est une vue de face d'un dispositif d'encroisure selon l'invention,
• La figure 3 est une vue de côté de la figure 2,
• La figure 4 est une vue de côté du dispositif d'encroisure en position de travail,
• La figure 5 est similaire à la figure 4 mais avec le dispositif d'encroisure en position de maintenance,

On the drawings:

• The figure 1 is a schematic front view of a winder incorporating a crimping device according to the invention,
• The figure 2 is a front view of a creasing device according to the invention,
• The figure 3 is a side view of the figure 2 ,
• The figure 4 is a side view of the creasing device in working position,
• The figure 5 is similar to the figure 4 but with the creasing device in the maintenance position,

According to a preferred embodiment of a winder 1 according to the invention illustrated in figure 1 , it comprises a metal frame obtained by a technique of mechanically welded metal elements previously machined or available as standard commercially. This frame essentially comprises a substantially rectangular base resting on legs suitably placed so as to correspond to the jig or the spacing of the forks of a pallet truck or a similar handling device to facilitate the implementation of this winder in a fiberizing position.

On this base is assembled a closed structure which is intended to receive all the components necessary for the operation of the winder 1. As such, and in a nonlimiting manner, this closed structure shaped cabinet is provided with control devices and control necessary for piloting of the various members that will be described later in this description (networks, hydraulic, electrical, compressed air, and other fluids necessary for the operation of said bodies).

On the closed structure cooperates a cylinder which is rotatably mounted about an axis of rotation and is held within one of the walls of the closed structure by means of a rotary guide member (ball ring ).

Indeed this barrel constitutes a spindle support assembly 6. On the figure 1 it should be noted that the barrel comprises a spindle 6 (one could design a barrel with several spindles in diametrically opposite positions or a barrel with at least three, four spindles, or more, depending on the space available and the capacities of the spindle. the die positioned upstream). Within the winder, the barrel makes it possible to transfer a spindle 6 previously unloaded and provided with at least one blank sleeve (within the meaning of the invention, a sleeve is a support for example made of plastic or cardboard which is intended to receive the coil 8 of son) in the winding position and simultaneously transfer another pin having its full cuffs to an unloading position by rotations of 180 °, of course if the barrel has two pins.

The pin 6 secured to the barrel constitutes a rotating assembly adapted to wind the wire on a sleeve previously introduced on a spindle 6. This winding is performed along a first axis of rotation substantially parallel to the axis of rotation of the barrel.

On the figure 1 , another element appears which is essential for the realization of the winding. This is the device for positioning and guiding the wire on the spindle or more generally called "creasing device" marked 5.

In this example shown in detail at the level of Figures 2 and 3 , this crisscrossing device 5 comprises at least one grooved cylindrical cam 9 which provides the function of back and forth of the son guide or guides 4, the latter being guided in translation between two strips 2 parallel to the axis of the cam 9. The cam 9 is rotated by a motor 11 via a mechanical transmission 17 and continuously sprayed by spray nozzles 3 which ensures its cleaning.

As a variant shown in the figures, it may be a slider movable within a groove, the slider moving linearly along a second axis substantially parallel to the axis of rotation of the spindle 6.

Whatever the embodiment, the crimping device 5 can move closer to or away from the outer peripheral surface of the coil during winding of the latter, in particular by rotation about an axis of articulation, this hinge pin serving as connection point between the winding frame and the crimping device.

On the Figures 4 and 5 schematically shows the crimping device 5 according to the invention. It is in two parts (a first 12 and a second 13), these two parts 12, 13 cooperate with each other through guide means of complementary shape. In the example shown, the guide means are made in the form of at least one rail at the first portion 12 of the crease device 5 and slide within at least one groove made at the second part 13 of the creasing device.

It is easy to understand that the type of guide means can be reversed between the first and the second part of the crimping device, and even design other types of equivalent guiding means between these two parts so that the second part can have a relative movement with respect to the first part of the crimping device. In this example, it is a translation movement that allows to separate the second part of the first part.

In figure 4 , the 2 parts are integral and the crimping device is in the working position corresponding in fact to a winding phase of at least one wire peripheral surface of a coil. In the sense of the invention, in the working position, the guide means are "released". In this position the guide means do not bear, the two parts of the crisscross device rest at their end by locking surfaces which are staves through which the efforts are reported.

In figure 5 , the two parts slide relative to each other, the crimping device is in disassembly phase for its change or maintenance. In this position, the guide means are active and support the weight of the second part during the entire disassembly phase (relative movement between the two parts of the crimping device).

This maintenance phase may concern, in particular, wire guides 4 which wear out rapidly, spray nozzles 3 which can become clogged, transmission members 16, 17 to deteriorate, and cam 9 and its windings which can fouling or wearing out despite the washing, and more rarely the engine 11 which may fail.

The second portion 12 of the crimping device conforms to an interchangeable removable cassette and possibly different from one product application to another.

For ease of assembly and disassembly maneuvers, this cassette is also of a total weight less than the limit fixed by the regulations in force concerning the load port by an operator, it is freed from the water connection 15 and the coupling 16 mechanical transmission of the rotational movement of the engine, by an automatic connection provided on the one hand by a closable automatic connector for water and on the other hand by a direct gripping system clutch for mechanical joining.

• Elle permet de réduire le temps d'intervention de maintenance sur le sous-ensemble encroisure en le rendant très facilement interchangeable, à un seul homme, sans avoir à bouger le bobinoir de sa position de production et avec un outillage simple.

The invention as described above offers multiple advantages:

• It reduces the maintenance intervention time on the sub-assembly encroisure by making it very easily interchangeable, to a single man, without having to move the winder from its production position and with simple tools.

Claims (3)

1. Reeler with a leasing device (5) capable of approaching or retreating from the outer surface of a thread reel, comprising at least one first part (13) connected to a frame element of the reeler (1) and at least one second part (12) comprising means for depositing and guiding at least one thread (7), said first part (13) and second part (12) being connected to one another in such a way that the second part (12) occupies a first position, referred to as the working position, in which the thread can be deposited in the form of a reel, and a second position, in which the second part (12) is separated from the first part (13), corresponding to a maintenance phase of the second part (12), the first part (13) and the second part (12) comprising complementary guide means which allow a relative movement between the first position and the second position of the second part (12), the guiding means being adapted to a relative motion of translation of the second part (12) with respect to the first part (13) so as to detach the second part from the first part, the second part (12) in the form of an interchangeable removable cassette comprises at least one grooved cylindrical cam (9) which ensures the to-and-fro function of the thread guide or thread guides (4), characterized in that the latter are guided in translational motion between two strips (2) parallel to the axis of the cam and in that the leasing device comprises spraying nozzles (3) for ensuring the cleaning of the cam (9), the first part (13) and the second part (12) each comprising mechanical coupling means (16) making it possible to effect the setting in movement of said cam (9) and means (15) for connecting a cleaning fluid of said cam (9) and of the thread guide or thread guides (4).
2. Leasing device according to Claim 1, characterized in that the first and second parts (13, 12) comprise interlocking means (14) designed to release the guide means when the second part (12) of the leasing device is in the working position.
3. Leasing device according to Claim 1 or 2, characterized in that the means (15) for connecting the cleaning fluid can be shut off when the second part (12) of the leasing device (5) is separated from the first part (13).

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