FR2625486A1 - Method and installation for the automatic packaging, into a roll or a reel, of cut lengths of a web of material - Google Patents

Abstract

Packaging of webs of material into reels. The installation comprises: . means 9 suitable for depositing, upstream of the cutting station, an adhesive product along a region 10 orthogonal to the running direction of the web and in relation to the subsequent cutting 11 of the web to be carried out; . a rotating device 7 for taking hold of and for pneumatic transfer of the cut lengths of web, by partial winding, on the face opposite that receiving the adhesive product; . and a winding mandrel 13 rotating in a direction counter to that of the device and winding the cut lengths onto the face receiving the adhesive product. Application to the quality control of textile webs.

Description

AUTOMATIC ROLL PACKAGING PROCESS AND INSTALLATION
OR IN A COIL OF THE CUTS OF A STRIP OF MATERIAL
The present invention relates to the technical field of the constitution of rollers or coils, from a strip of any material entrained in scrolling in front of a quality control station controlling a cutting device making it possible to select either waste relative to sections of acceptable quality, ie waste and sections of different acceptable qualities.

 The technical field concerned is, more particularly, that of the packaging of textile bands, visited so as to eliminate manufacturing and / or appearance defects.

In the technical field above, it is known to have a reel of a strip of material facing a reeling station including, generally, a buffer reserve, beyond
Which the strip is driven in scrolling, most often, in a horizontal plane. The strip, thus unwound, is inspected, automatically or not, by means making it possible to select a cutting device responsible for cutting the strip on the fly on the fly, so as to produce sections meeting certain identification or quality criteria. .

 The sections are supported by transfer means which direct them to winding stations on mandrels constituting reels or storage rollers.

It can be considered that the reeling and inspection means currently give satisfaction for the above functions. It is generally the same with regard to
The cutting means on the fly designed so as to carry out the transverse sectioning of a strip, perpendicular to its endless direction of travel.

 The problem which arises in current installations lies, more particularly, in the handling of the cut sections so as to constitute, depending on the qualities and fully automatically, reels or packaging rolls.

 In order to respond to the problem thus posed, two difficulties are, in general, to be resolved.

 The first relates to taking charge of the first bank of a cut section, so as to ensure its orientation, with a view to forming a coil or a roller favorable for subsequent handling.

 The second is that of the constitution of a reel or a roll representing a compact unitary assembly, capable of being handled or handled, without causing unwanted unwinding or unwinding of the wound section (s).

 To resolve the first difficulty, the prior art has proposed numerous means of deflecting the first bank of a section cut from a strip, so as to modify its theoretical path or path and thus allow it to be taken over by a winding device. As a general rule, these devices require the presence of a server staff, so as to control the take-over and winding phase which is carried out, most often, by means of mechanical or pneumatic means ensuring the transfer from the edge of the cut section, then taking it over by a winding device.

 The second difficulty is solved, generally, by implementing the winding devices within a cradle on which are arranged means capable of unwinding, at the end of winding, straps or adhesive strips responsible for belting, regular interval, the entire width of the rolled up strip section.

 The above devices are not favorable to automatic high-speed operation of a quality control and packaging chain for a delivered tape, from a very large capacity reel. Indeed, these devices require the presence of a serving staff and imply, obligatorily, at the stage of final packaging, a precise control of the capacity and of the distribution of the adhesive tapes responsible for surrounding the reel or the roll made up.

 The present invention aims to solve the two above difficulties by proposing a new automatic packaging process, particularly suitable for reconditioning after quality inspection of sections cut from a textile strip.

To achieve the above objective, the automatic packaging process according to the invention is characterized in that it consists in:
- project onto one side of the strip, upstream
cutting station, a covering adhesive product
a specific glued range, in relation to
the subsequent cutting line of each defect
found,
- cross section of the strip,
relationship with the pasted beach,
- take charge of the downstream bank of a
strip section cut by a device
rotating transfer causing winding
partial of said section on the face devoid of
adhesive product,
- bring, by the transfer device, the part
glued from the downstream bank of the section, in relation
with a winding mandrel rotating in the
opposite direction to that of the device of
transfer,
- ensure cooperation between the mandrel and the
glued part of the shore which is taken in
load by the rotating mandrel responsible for ensuring
The progressive winding of the strip section,
- ensure the complete winding of the section on the
mandrel, so that the glued part of
the upstream bank cut from the same section comes
stick on the last winding turn
section.

The invention also relates to an installation for implementing the above method, characterized in that the winding station comprises
- means suitable for depositing, upstream of the
cut, an adhesive product along a beach
orthogonal to the direction of travel of the strip and
in relation to the subsequent cutting of the strip
to execute,
- a rotating device for taking charge and
pneumatic transfer of strip sections
cut, by partial winding, on the face
opposite to that receiving the adhesive product,
- and a winding mandrel rotating in direction
opposite of the device and ensuring the winding
sections on the face receiving the product
adhesive.

 Various other characteristics will emerge from the description given below with reference to the accompanying drawings which show, by way of non-limiting examples, embodiments of the subject of the invention.

 Fig. 1 is a schematic view of an installation for implementing the method according to the invention.

 Figs. 2 and 3 are schematic perspective views, illustrating two particular phases of implementation of the method.

 Figs. 4 and 5 are cross sections highlighting two particular phases of the process.

 Fig. 6 is an elevation showing, on a different scale, an installation for implementing the method.

 Fig. 7 is a top view taken, substantially, along the line VIl-VIl of FIG. 6.

 Fig. 8 is a section taken diagrammatically, on a larger scale, along Line VIII-VIII of FIG. 7.

 Fig. 1 shows, schematically, an installation for implementing the object of the invention in the automatic packaging in rolls or in coils of sections of any strip of material 1, such as a fabric, delivered by a coil 2 mounted free in rotation by a horizontal axis on a frame not shown. The strip 1 is, generally, supported by a buffer magazine 3 beyond which it is driven in constant scrolling, for example in the horizontal direction shown diagrammatically by the arrow f1, while being supported by conveyor means 4 driven in scrolling in the same way.

 The conveying means 4 can be constituted in several different ways and, for example, by an endless belt of the perforated type.

 The strip 1 is taken over beyond the magazine 3 by the upper strand of the conveyor 4, so as to be driven in constant scrolling through a quality control station 5.

In certain cases, the station 5 could be located differently and be, in particular, incorporated into the magazine 3. The station 5 is designed in a manner known in the art, so as to be able to scan, simultaneously, the entire surface of a transverse range of the strip, perpendicular to the direction of travel according to arrow f1.

The means of the station 5 make it possible to determine, as the strip 1 scrolls, The fault or faults which must necessarily be taken into account in order to select sections, either free of faults, or responding to different categories of faults.

 The station 5 is responsible for controlling, remotely, a cutting station 6 operating, generally, on the fly, so as to be able to achieve a perfectly transverse section of the strip 1 driven in scrolling. The cutting station 6 can be produced in many different ways, involving mechanical, electronic or optical members.

 A packaging installation according to the invention generally comprises, downstream of the cutting station 6 with respect to the direction of travel according to the arrow f1, at least one packaging station 7 responsible for taking over and packaging on a reel or in roll of the selected strip sections 1, while the waste is evacuated by the upper strand of the conveyor 4 in the direction of a receiving container 8.

 Depending on the number of selection criteria, an installation according to the invention can therefore comprise several stations 7 responsible for ensuring the winding in reel or in roll of strip sections 1 corresponding to different quality categories. In such a case, automatic servo-control of the various stations 7 is ensured, in relation to the inspection station 5.

Fig. 2 shows that, according to the method of the invention, the station 5 is responsible for piloting means 9 capable of depositing, upstream of the cutting station 6 and on only one side of the strip 1, in this case and preferably the lower face When the strip 1 is supported by the horizontal upper strand of a conveyor 4, an adhesive product along a range 10 orthogonal to the direction of travel in the direction of the arrow f1 and located in relation to a subsequent cutting 11 to be carried out by the station 6. The means 9 are preferably designed so as to deposit the area 10 by spraying, taking account of the constant movement of the strip 1. The adhesive product, deposited by spraying, is chosen among those guaranteeing an absence of soiling, deterioration, transfer or crossing of the raw material or raw materials constituting the strip 1, in order to eliminate any risk of deterioration of the quality of the latter. In the case of application to a textile strip 1, an adhesive product, particularly suitable for such an application, is, for example, that marketed under the reference 75 by La
3M company.

 The means 9 are preferably organized so as to allow the deposition either of a range 10 located upstream of the cutting line 11, or of a range 10 extending on either side of the latter. , according to the quality selection criteria applied. To this end, the means 9 are, advantageously, constituted by two ramps 9a and 9b which can be controlled in simultaneous or selective operations, from station 5.

When the inspection or inspection of the strip 1 is intended to eliminate any first-order waste, so as to leave the strip sections not meeting such a criterion, the means 9 are provided, so as to deposit, by
The intermediary of the ramp 9a, a range of adhesive product defining a glued part situated upstream of the cutting line II relative to the direction of travel according to the arrow f1 (fig. 2). On the other hand, in the case where the visit of the strip 1 is assumed, so as to eliminate the waste and to select sections of strip of different qualities, the means 9 are controlled by the control station 5, so that the range 10 of adhesive product extends on either side of the line 11, as shown in FIG. 3.In such a case, the ramps 9a and 9b are then actuated simultaneously.

 In either case, according to figs. 2 and 3, the method of the invention involves, after spraying the glued area 10, the transfer of the strip 1 towards the station 6 or, on the fly, is carried out The execution of the cut 11. In the two cases therefore, after the execution of this cut, a section 1a of strip has a downstream bank provided, on its lower face, with a glued pad 10 brought in line with the winding station 7.

According to the invention, the station 7 comprises a device capable of ensuring the support of the downstream bank of each section presenting it at its base. This is done, as shown in figs. 3 to 5, so as to cause, pneumatically, the winding of the section la, in the direction of arrow f2, on a rotating element 12 whose axis of rotation xx 'is arranged perpendicular to the direction of travel according to arrow f1 . According to another provision of the
The invention, The pneumatic winding of the section 1a is carried out on the face opposite to that provided with the glued pad 10. In
The example illustrated, the winding station 7 is, consequently, placed above and at a short distance from the upper face of the strip in. The pneumatic support by the element 12 is carried out over a determined angular sector, so as to bring the glued downstream bank of the section la into contact with a winding mandrel 13 also forming part of the station 7. The element 12 is designed to assume a transfer function, so as to cause the winding of the glued edge of the section 7a on the mandrel 13 which is rotated in the direction of the arrow f3. This winding is obtained, automatically, by the glued part 10 which adheres to the mandrel 13 (fig. 5). Automatic winding of the entire length of the section 1a can then occur. At the end of winding, the upstream bank of the section also includes it, generally, a glued area 10 which corresponds to the downstream half-area resulting from a following cut according to
Line 11. This glued part is applied to the last turn wound on the mandrel 13 and completes the winding, giving it the character of a roll or coil having a clean hold allowing handling or handling, transport and storage. , without risk of unwanted unwinding.

 To make it easier to take care of the downstream bank of each cut section, the station 7 may include, below the element 12, a blowing ramp 14 arranged under the upper strand of the conveyor 4, so as to bend towards the upper downstream bank of each section approaching the winding station 7.

 To assume the care and transfer function, as illustrated in figs. 4 and 5, the element 12 is preferably constituted by a rotating element, designed so as to produce, on the one hand, a suction effect over a determined angular range, such that the range a between the ramp 14 and substantially a radial direction tangent to the lower generatrix of the mandrel 13 and, on the other hand, a blowing effect on a subsequent angular range ss. The strip section is thus detached from the conveyor by the ramp 14, sucked and pressed along the range a, then deflected towards the mandrel 13, from the birth of the range ss.

Figs. 6 to 8 show an installation for implementing the method described above. These figures are, more particularly, relating to the location and organization of the winding station 7, in the case of an installation intended to eliminate, from a strip 1 delivered by a reel 2, the segments or sections corresponding to waste, while ensuring
The winding on the same mandrel of the different successive sections free of detected defects.

An installation, within the meaning of the invention, could be organized in a similar way by providing for multiplying the stations 7 in the case where it would be advisable to carry out, at different stations,
The winding of sections of strips meeting different quality criteria, without being classified as waste.

In such a case, the various winding stations 7 follow one another in the direction of travel according to the arrow f1 and are actuated in taking charge of corresponding sections, via the station 5. A means of selecting each station 7 may, for example, consist in activating the corresponding element 12 and, if necessary, that of the blowing ramp 14 which is assigned to it.

 According to the drawings, the station 7 comprises an element 12, constituted in the form of a rotating device carried by the frame of the installation, so that its axis xx 'extends horizontally above the upper face of the band 1.

 The element 12 comprises a tubular axis 20 supporting a fixed cylinder 21 with respect to which is disposed, externally and concentrically, a rotary perforated envelope 22. The rotary envelope 22 is rotated in the direction of the arrow f2, by all motor drive means 23 cooperating, for example, with a ring gear 24 carried by the casing 22.

 The fixed cylinder 21 and the perforated envelope 22 delimit, between them, an annular gap 25 which is divided, in the present case, into two sectors 26 and 27 covering areas a and 6, by radial partitions 29 integral with the fixed cylinder 21. The sectors 26 and 27 are linked, via the pipes 30 and 31, with two circuits, respectively 32 and 33 which are preferably included or delimited, in part, by the tubular shaft 20. The circuits 32 and 33 are connected to means, external to the shaft, for placing under vacuum and for putting under relative pressure.

 The station 7 furthermore comprises a rotating cylinder 40, of the same diameter as the rotating perforated envelope 22. The rotating cylinder 40 has an axis yy 'parallel to the axis xx' and situated on the same side as the latter with respect to to the strip 1. The rotating cylinder 40 is driven, in the same direction of rotation as the casing 22 and at a speed greater than that of the latter. The cylinder 40 and the envelope 22 together constitute a horizontal duo ensuring between them the support of the free mandrel 13 which is, consequently, driven in rotation by the action of the rotating cylinder 40.

 According to a particular arrangement of the invention, the duo, consisting of the rotating cylinder 40 and the casing 22, is mounted on a chassis capable of being pivotally driven in the direction of the arrow f4 (fig. 6), when 'A diameter detector determines that the winding capacity of the mandrel 13 is reached and that the coil or roller, thus formed, must be released from the installation.

 In such a case, the tilting of the chassis, in the direction of the arrow f4, makes it possible to release the coil or the roller in the direction of a side conveyor 50 for taking charge, ensuring its sliding by gravity, vibrations or other means, in the direction of a support and evacuation plate 51 extending parallel to the installation proper.

 The invention is not limited to the examples described and shown, since various modifications can be made thereto without departing from its scope.

Claims (15)

CLAIMS:  1 - Method for automatic packaging in roll or reel of the sections of a strip (1) of material driven in scrolling in front of a quality control station (5), of the type including, on the one hand, at least one operating detector along an axis perpendicular to the direction of travel of the strip to select at least two qualities of strip and, on the other hand, at least one station (6) for cutting on the fly disposed downstream of the detector, while being piloted by the latter,  characterized in that it consists of  - project onto one side of the strip, upstream  cutting station, a covering adhesive product  a glued area (10) determined, in relation  with the subsequent cutting line (11) of each  defect found,  - cross section of the strip,  relationship with the pasted beach,  - take charge of the downstream bank of a  section (la) of strip cut by a  rotating transfer (7) causing winding  partial of said section on the face devoid of  adhesive product,  - bring, by the transfer device, the part  glued (10) from the downstream bank of the section,  relation to a winding mandrel (13)  turning in the opposite direction to that of  transfer device,  - ensuring cooperation between the mandrel (13) and  the glued part (10) of the edge which is taken  loaded by the loaded rotary chuck  ensure progressive winding of the section of  bandaged,  - ensure the complete winding of the section on the  mandrel, so that the glued part of  the upstream bank cut from the same section comes  stick on the last winding turn  section.  2 - Method according to claim 1, characterized in that the adhesive product is sprayed on the underside of the strip.  3 - Method according to claim 1, characterized in that the winding mandrel (13) is rotated so as to have a peripheral speed greater than that of the rotary transfer device (7).  4 - Method according to claim 1, characterized in that the downstream bank of a strip section is pneumatically supported by the transfer device.  5 - Method according to claim 1, characterized in that the bonded area is produced by two devices selectively controlled.  6 - Method according to claim 1, characterized in that the adhesive product is sprayed onto the strip to cover only a range located upstream relative to the cut to be performed.  7 - Method according to claim 1, characterized in that the adhesive product is sprayed onto the strip to cover a range extending on either side of the subsequent cut to be executed.  8 - Automatic packaging installation in roll or reel of the cuts of a strip (1) of material driven in scrolling, of the type comprising a quality control station (5) in front of which the strip scrolls, a cutting station at the flight (6) disposed downstream of the quality control station, means for removing waste from the strip and at least one station (7) for winding up the cut sections of strip,  characterized in that the winding station includes  - means (9) capable of depositing, upstream of the station  cutting, an adhesive product Along a beach  (10) orthogonal to the running direction of La  strip and in relation to the subsequent cut  (11) of the tape to be performed,  - a rotating support device (7) and  pneumatic transfer of strip sections  cut, by partial winding, on the face  opposite to that receiving the adhesive product,  - and a winding mandrel (13) rotating in direction  opposite of the device and ensuring the winding  sections on the side receiving the product  adhesive.  9 - Installation according to claim 8, characterized in that the means (9), capable of depositing the adhesive product, are constituted by two spray bars (9a) capable of being supplied simultaneously or selectively.  10 - Installation according to claim 9, characterized in that your ramps (9a) are arranged in relation to the underside of the strip.  11 - Installation according to claim 8, characterized in that the rotating device (7) for handling and transfer comprises  - a fixed tubular mandrel (20) connected to the  at least two independent circuits (32, 33) of  depression and relative pressure compared to  ambient,  - a fixed cylinder (21) carried by the mandrel,  - at least two tubes (30, 31) established,  respectively, between one and the other of  circuits and the cylinder outside of which  they lead into two angular sectors  separate (a, 13),  - and a perforated envelope (22) rotatably mounted  with little play, concentrically at a distance and  outside the cylinder.  12 - Installation according to claim 11, characterized in that the rotating device comprises a rotating perforated casing assembly (22) - fixed cylinder (21) disposed above and near the upper face of the strip and a blowing ramp ( 14) disposed under the underside of the strip, substantially perpendicular to the axis of rotation of the rotating envelope.  13 - Installation according to one. of claims 8, 11 or 12, characterized in that the rotating device comprises a casing (22) - cylinder (21) and a cylinder (40) of axis (y-y ') parallel rotating in the same direction as L envelope with which it forms a horizontal duo supporting a winding mandrel.  14 - Installation according to claim 13, characterized in that the rotating cylinder has the same diameter as the envelope and rotates at a speed greater than that of the latter.  15 - Installation according to claim 13, characterized in that the duo is pivotally mounted on an axis perpendicular to the direction of travel of the strip and parallel to a lateral discharge conveyor of each reel or roller.