FR2512778A1 - PROCESS FOR FORMING ENVELOPES AND APPARATUS FOR THEIR APPLICATION TO PRODUCTS SUCH AS SOCKS AND THE LIKE, PARTICULARLY THOSE WHICH MUST BE SENT TO THE DYE - Google Patents

Abstract

THE PROCESS CONSISTS OF FORMING A CONTINUOUS MT TUBULAR FABRIC, WITH MESH, OF ADEQUATE QUALITY; FROM THIS TUBULAR TISSUE, ST TUBULAR PIECES ARE OBTAINED, ONE AFTER THE OTHER; IN EACH OF SUCH ROOMS IS A SET OF M3 PRODUCTS RANKED REGULARLY.

Description

Method for forming envelopes and device for applying them

  to products like socks and the like,

  especially those who must be sent to the laundromat.

  The object of the invention is a method and a device which make it possible to carry out a significant automation of certain operations such as those carried out to finish women's stockings, which must be handled in a dry-clean

  in other phases of manufacturing activity.

  A first object of the invention is the realization

  of a process for the formation of packaging envelopes

  temporary stocking of woman's stockings and other similar products, in particular for the treatment in dyeing and other operations, process according to which: a continuous tubular fabric, with mesh is formed; from this tubular fabric, tubular pieces are obtained, one after the other; and in each of these rooms is housed a set of products arranged regularly. The tubular part is spread out in an elastic manner, then, thanks to an adequate movement, the set of products is introduced into this piece and, when the spacing stops, the set of products is tightened elastically by the

  said part, ready for other manipulations.

  Another object of the invention is the production of a

  set of products packaged according to the above process.

  The invention also relates to the realization

  of a device for implementing the above method.

  A device of this type comprises: a magazine, possibly with a reel, from which the tubular fabric is drawn; means for spreading the ends of said fabric comprising an organ

  placed inside the tubular tissue and means

  laughing to maintain this fabric, provided to obtain the displacement of the latter; means for returning the fabric provided for extracting sections of fabric making it possible to form individual pieces; "spreading means combined with said return means; adjacent and downstream cutting means (relative to the direction of movement of the fabric) spacing means; and means for carrying out movements for the introduction of the products into

the discarded piece.

  The invention will be better understood by referring to the

  description below and in the attached drawings showing a

  practical, non-limiting example of embodiment of this invention. In these drawings: FIG. 1 is an overall side view of a device to which equipment according to the invention can be applied.

  Figures 2 and 3 are side views, orthogo -

  nales in the previous view, representing two positions of the arms carrying the suspension element and the accompanying member. Figure 4 shows a different version of

the positioning surface.

  Figures 5 and 6 are two side views shown

  feeling two different positions.

  Figure 7 is a plan view of a modified embodiment. Figures 8 and 9 show respectively a side view and a plan view of enlarged details of the

Figure 2 device.

  Figure 10 is a detail view of an extraction means. Figure It is a plan view, schematic, of a horizontal parts feeding mechanism

tubular.

  FIG. 12 is an elevation view of certain members in a phase succeeding that of FIG. 11 with

these same organs.

  Figure 13 is a partial sectional view along

line XIII-XIII of Figure 12.

  Figure 14 is a view showing a detail of a

extraction organ.

  Figure 15 is a perspective view showing

a spacer.

  Figures 16, 17, 18, 19 and 20 are cross-sectional views along, respectively, lines XVI-XVI, XVII-XVII, XVIII-XVIII of Figure 12, XIX-XIX of

  Figure 11 and XX-XX of Figure 13.

  Figures 21 and 22 respectively constitute a side view and a partial view along the line XXII-XXII of Figure 21 showing another embodiment

with vertical flow.

  Figures 23, 24, 25, 26 and 27 are cross-sectional views showing organs in different

positions.

  In FIGS. 1 to 4, a device has been shown which can be fitted with a system according to the invention, the reference 1 designates a flat structure intended to receive a set of folded products. by means of a horizontal axis 5, an oscillating arm Y 7 capable of assuming a vertical position (FIGS. 1 and 2) for receiving the

  products and a horizontal positioning position (figure 3)

  ce of the products on the plane (1) the arm 7 has, at its end, a cylinder-piston system 9 designed to axially control a rod 10 which can exit or enter relative to the arm 7 with movements orthogonal to this arm 7; with horizontal positioning, the rod is

  parallel to plane 1 (see Figure 3).

  To accompany the product or all of

  produced in the movement of arm 7 between the two posi-

  tions indicated above, a second arm 12 is provided which, articulated by means of the axis 5, is coaxial with the arm 7, although controlled independently of this arm 7 The arm 12

  also has, on its end, a cylinder-

  piston 14 which controls a rod 16 parallel to the rod 1 C To receive a product or, one after the other, several products, the arm 7 is placed in the raised position of FIGS. 1 and 2; while the arm 12 is kept lowered towards the plane (1) in the position reached with a rotation, in the anti-clockwise direction, according to the arrow f 12, or in any case in a position displaced in the same direction relative to the position indicated in Figures 1 and 2; on the rod 10, protruding, will be placed and accumulate one or more products type bottom woman or the like (tights and others) with a provision like that designated by Ml in Figures 1 and 2, the product or products being suspended in an “Ul” position inverted on the rod 10 A possible pressing element 20 (FIG. 1) can be lowered cyclically to keep the products already suspended and it can also ensure the maintenance of unbalanced products in the suspension means such the rod 10 on which

he acts.

  Once the product or products placed in the position M1, the arm 12 with the projecting rod 16 is brought closer to the arm 7 in the position indicated in FIG. 2, with displacement in the opposite direction relative to the arrow 2 f 12, so that the rod 16 almost touches the product or the set of products M 1 suspended on the rod 10 At this time, the two arms 7 and 12 move simultaneously in the direction of the arrow f 12 to pass from the position of FIG. 2 to that of FIG. 3, in which the product or the set of products folded in 'Ul "is placed on the plane 1 of the

  as indicated by the mark M 2.

  To obtain that they withdraw from the product or from the set of products placed in the position M 2, the two rods 10 and 16 are recalled by the cylinder-piston systems 9 and 14; these rods thus abandon the set of products M 2, then allowing the arm 7 to be placed again in the almost vertical position of FIGS. 1 and 2 and also allowing a partial elevation of the arm 12 Thus can resume the positioning cycle of the product or products on the rod 10, which protrudes again from the arm 7 At position M 2 of the set of products can be obtained either by prior accumulation on the rod 10 and subsequent positioning on the plane 1, or by positioning of detached products, one after the other, folded into a "U" on plane 1 and superimposed (instead of being placed next to

side and folded together in a "U" shape).

  Products put in place one way or the other

  (as shown above) on plan I can be 9

in many ways.

  According to a possible type of embodiment, an opening 24 is provided on the plane 1, in an intermediate position relative to the position of the set of products M 2 placed on this plane 1 A folding and insertion equipment causes the doubling by folding the set of products 12 and insertion through said opening 24 For this purpose is provided a vertical guide 26 for the sliding of a shoe 28 whose upper part has a console 28 A On this console shoe is articulated at 30 a mechanism 32 which can rotate around the articulation 30 by means of a cylinder-piston system 34 the arm 32 has a blade element 36 which can rotate around the articulation 30 er starting from the position of the figure 1 until it is above the opening 24, and therefore of the set of products M 2, to then be lowered with the shoe 28 sliding in the guide 26 so as to engage in the opening 24 roughly in the center of it and fold in half

the set M 2.

  At the end of the operation, the set of products is in position 143 of FIG. 3, the blade joining position 36 A and then withdrawing with a reverse elevation movement The set of products in position M 13 can be housed in a room or tubular envelope 40 for conditioning, final or temporary, for example

for dyeing products.

  According to another possible type of embodiment (see FIG. 5), the plane 1 has side walls 102 to form a channel where the set of products M 2 is put in place In this case, a tubular piece or envelope is placed on the channel to surround the walls 102 and the content of this channel and therefore to wrap the set of products M 2 This set, with the envelope which surrounds it, can be removed longitudinally in the direction of the arrow (f 5) of Figure 5, for example with a gripper gripping means which can act through a longitudinal slot 104 of the

  channel shown in figure 5.

  Figures 6 to 8 show an alternative embodiment which seems better suited than that illustrated by Figures 1 to 4 when it comes to positioning individual lightweight products such as stockings or the like rather than sets like those designated by DI 1 In this variant, on the plane 301, equivalent to the plane 1, must be placed a set of products one product after another in the position indicated by D 116 With this plane 301 is combined a support 303 on which is articulated in 305 an arm 307, similar to arm 7 and, like the latter, provided with a rod 310 intended to be recalled by a cylinder-piston system 309; the arm 307 can move from a vertical position to a horizontal position along the plane 301 to transport a single product 145, suspended in a "U" shape on the rod 310, until it is placed on the assembly 116 in formation with products put in place one after the other To support product n S during the lowering of the rod 310 with the arm 307, a pallet element is used (instead of a rod like the rod 16) On an arm 312, articulated at 313 on the support 1, is mounted a cylinder-piston system 314, the rod 316 of which supports said pallet element 317, which can slide on its own plane, which is an axial plane with respect to the members 314 , 316 The product DIS is placed in "U" on the rod 310 as shown in Figure 6 -, the arm 307 being

  upright and the pallet element away.

  The assembly 312, 314, 316, 317 is then placed in the position of the said figure, while the arms 307 and 312 rotate in the direction of the arrows f 310 until reaching a horizontal position in which the product MS is deposited on the assembly M 16 in formation, hitherto accompanied by the pallet 317 This pallet 317 is then recalled, in the direction of the arrow f 317, to complete the positioning of the product MS; a pressing element such as element 20 can hold the products during this operation; it is then proceeded, by means of the cylinder-piston system, to the recall of the rod 310 to remove it from the product At this time

  there, arm 307 can return to the vertical position

  wedge and preferably after positioning a new MS product on the rod 310 projecting again the arm 312 can in turn pivot after the system 314 has been actuated to replace the pallet 317 in the position allowing it to start the accompaniment of the product on the whole MS in training In this case also, we can package the products with pieces or envelopes of

tubular fabric.

  As already mentioned, for some operations -

  production of women's stockings, tights and the like

  res, we need to perform a temporary packaging, for example, to send the products to the dyeing plant. It is therefore proposed here to use tubular envelopes formed with continuous tubular fabric from which parts of relatively elastic tubular material are obtained. ; with this material the packaging is carried out

  temporary, which is slightly tightened elastically -

  on the set of products to be packaged, for example, in order to subject it to a dyeing treatment. Consequently, a continuous store of tubular material is used to form the pieces or envelopes, which are separated and presented to a filling device for each room, with equipment like those described above and the like. A first example of a device for supplying the pieces or envelopes of fabric is that of FIGS. 2, 8 and 9 In these figures, the reference 501 designates a reel magazine for the tubular material MT from which the pieces or envelopes ST Ce are obtained. MT material, which a roller 503 has flattened, arrives with the end facing upwards at a spacing and cutting equipment 505 This equipment has, on a chassis 507, pairs of outer rollers 509 with profiled edges as end disks and able to act on a small internal chassis 510, in turn provided with two rollers 512 with double annular border; this small frame 510, held in position by pairs of rollers 509, can be placed inside the end of the material

  tubular MT, which remains tensioned by the rollers 512 and compri-

  between these rollers and the pairs of rollers 509, to

  ability to slide between rollers, which are mounted insane.

  Once recalled upwards in the manner described below, the MT material can be cut by a shear means 514, while it is still flattened and is spread apart by the small chassis 510, 512 placed inside ; the length of the part or envelope depends on the importance of the return of the end of the tubular material upwards in the direction

arrow 54.

  To obtain the upward return of the MT material (and therefore the cut of the envelope), a mechanism with four gripping rods has been provided, which can move between a lowered position 520 A and an elevated position 520 B , in the direction of the arrow f 54 This mechanism 520 comprises a frame 522 which can slide vertically along

  uprights associated with lateral translation equipment.

  On the small chtssis 522 are articulated, by means of two opposite and parallel axes 524, pairs of arms 526, each arm carrying, on its end, a rod 528 oriented in the direction of the arrow f 54 and turned downwards In the position of FIG. 9, the assembly of the four rods 528 is arranged so as to allow these rods lowering in the direction opposite to that of the arrow f 54 to penetrate inside the material b IT stretched by the small chassis 510, 512; the rods thus penetrate inside the end of the tubular material and, when they are raised in the direction of the arrow f 54, these rods can recall the material by forcing it to slide between the rollers 509 and the rollers 512 and to be unrolled from the reel-magazine 501 To obtain that the material follows the rods 528 well in their upward movement, on at least one of the arms 526 is provided a block 530 which receives a series of points 532 intended to make protruding in opposition to the rod 528 carried by said arm, so that the product is engaged between these points 532 and the rod 528 concerned; the points 532 are brought into the projecting position and in opposition to the rod after the lowering of the mechanism 520, 524, 526, 528 and before the rod is raised again; therefore, with the help of the tips 532, the return of the end of the tubular material b IT is guaranteed,

  which slides between the rollers 509 and 512.

  The material thus displaced upwards is presented to the shear 514, which is still flattened; this cuts it and thus separates a part or envelope, which remains held by the rods 528, while the new end of the NT product remains engaged between the rollers 509 and the rollers 512 for a new cycle The piece of material ST remains maintained by the rods 528 at the upper level, that is to say in position 520 B In this position, and following a trajectory, for example horizontal as that indicated by the arrow f 120, the arms 526 of each pair s 'eca Ztent from each other so that the rods 528 take position 528 D, thus imposing on the piece ST a rectangular development in plan with an increase in the internal space of this piece ST, which is thus able to receive the material to be provisionally packaged, material which can be introduced into the part thus discarded in position 5200, below the folding equipment

  and insertion of the products already described.

  After the products have been inserted into the ST part, it is possible to provide for the distance of this ST part, with the products it contains, by sliding relative to the

  rods 528 For this purpose, it is possible to provide a device comprising

  nant a pair of opposite pressing elements 536 (see figure) which act in opposite directions on the assembly to press it between the rods in order to hold it and maintain it and then slide it along the rods

  with a more or less accentuated friction depending on the aspher-

  superficial tees of these pressing elements.

  After the exit of the part or envelope ST which is tightened in an elastic manner on the profuits which it accommodates), the equipment 507, 522 is replaced in the position allowing it to cooperate with the equipment 505; this equipment 505 can be aligned with position 5200, by providing means for diagonally moving away from the packaging obtained with the piece ST. The rods 528 are replaced in the position with close pairs, so that they can re-enter the end of the DT tubular material engaged

between rollers 509 and 512.

  According to a variant not shown, a separation can be provided between the means which recall the fabric and the means which move it apart, although these means work

2-512778

in cooperation.

  According to the embodiment illustrated in Figures 11 to 20, there is provided a horizontal supply of tabular packaging material; this material is cut into pieces to wrap the accumulated and superimposed products

  on plane 1 between the walls 102 of the structure repen-en-

  shown in figure 4 This material, as in the previous case

  tooth, may also consist of a tube of suitable wire mesh, woven with machines of the type of those which manufacture women's stockings. This tubular material must be discarded and placed on the channel formed by plane 1 and the walls 102, of so as to surround the set of accumulated products 142; a piece or piece of material must be separated from the continuous tube and must be of the necessary length for the

conditioning.

  To remove the material, an element has been provided

  profile intended to penetrate inside the tabular material.

  This element 50 has a wedge shape; in the separated part, it has two transverse recesses with rounded bottom 52 and opposite, intended to constitute a partial housing for two rollers 54, also transverse and with parallel axes, which are provided to support the element 50 with the help of '' a possible roller 56 mounted so as to serve as a support for the

  thinnest part 'of this wedge-shaped element 50.

  The element 50, thus supported and maintained by the rollers 54,54,

  56, can be surrounded by tubular condi-

  and therefore it is inside the latter.

  The IT tubular packaging material, supplied by a store coil BC, surrounds the element 50 and is compressed between the latter and the rollers 54, 54, 56 In front of the mouth A of the element 50 is disposed a shears 58 whose blades , approaching each other, can cut the flattened tubular material, which is moved in the direction of the arrow f 50 Means are provided for gripping the end of the tubular product TC spread by the element 50, recall it ,

  enlarge it and place it on channel 1, 102.

  To recall the tubular material TC and to widen it, an equipment 60 has been provided which moves in the direction of the arrow f 50 to extract the material and in the opposite direction to pick up new material to be extracted On the 60 are fitted

  two opposite slides 62 which can move

  symmetrical transverse cements in the direction of the two arrows f 62 On the internal ends of said sliders 62 are articulated longitudinally in the direction of arrow f 50 two rods 64, each of these rods being provided with a band 66 The sliders 62 comprise means to rotate, each, its own strip 66 of 900, towards

  the bottom for example, relative to a coplanar position.

  Each strip can therefore move away from the other strip and pass from a plane common to the two strips, placed face to face and facing one another, to a plane perpendicular to the previous plane. The bands 66, coplanar and with the stems close together, can penetrate inside the element 50, which has two slots 50 B, all this due to a

  relative approximation of the two slides 62 and a displacement

  cementing of the equipment 60 in the opposite direction to that of the arrow f 50; the insertion in the element 50 relates to the entire part of the rods 64 and of the strips 66 projecting from the slides 62 In this way, the strips 66 go

  fit inside the tubular packaging material

  TC ment, in the terminal section of this material placed on the element 50 At this time, the slides 62 move away from each other causing the rods 64 to pass through the slots 50 B until a section of these rods is supported

  against side surfaces 60 A of equipment 60.

  In this way, the TC material surrounding the element 50 is slightly spread on the sides and engaged between the rods 64 and the walls 60 A The equipment 60 then moves in the direction of the arrow f 50 to approach the formed channel by the plane 1 and the walls 102; with this displacement of the equipment 60, also occurs the displacement of the tubular conditioning material TC, which slides around

of element 50.

  At the outlet of the mouth 60 A of the element 50, the material TC is flattened and stretched between the two rods 64 and, consequently, under conditions suitable for being cut by the shears 58, after the ends of the bands 66 have withdrawn from element 50, the new end forming after cutting being around the

  mouth 50 A and around the element 50.

  A piece of TC equipment of the desired length

stays on tapes 66.

  In the space between the element 50 and the channel 1, 102, 102, the strips 66 pivot and pass from the coplanar position to the parallel and downward-facing position; in this way, the piece of TC tubular material is widened until it takes on the rectangular shape allowing it to surround the channel 1, 102, 102, on which the cut piece of TC material is put in place. following the movement in the direction of the arrow f 50 This piece of TC material placed on channel 1, 102, 102, surrounds the set of products' L 2 and, once removed from said channel 1, 102, 102, it tightens to form

  a stable envelope around said 1 M 2 assembly.

  To take and remove the M 2 assembly with the

  room or envelope in TO material, it has been provided by the Ln team-

  ment 70 which can move to present itself at the desired time between the element 50 and the end of the channel 1, 102, 102 and to move away from this channel in a direction substantially

  perpendicular to the direction of the arrow f 50 Said team-

  ment 70 has a part 72 movable in the direction of arrow f 72 to constitute -n clamp mechanism, together

  with an appendage 74 and a rib 76 of this equipment 70.

  ia clamp 74, 76, spread apart, is placed on the end of the channel 1, 102, 102 and it is then closed so as to

  ability to enter slot 104 to grip set

  ble M 2 with the piece of TC equipment; at this time, the equipment 70 moves in the direction of the arrow f 150, that is to say in the opposite direction to that of the arrow f 50 - so as to extract the assembly D 12 enveloped by the foot of TC material to transfer it for further manipulation; to allow this extraction, the sliders 62 will have been slightly brought together so as to loosen the grip on the surfaces 60 A.

  After the equipment 70 has moved away, the team-

  ment 60 can move again in the opposite direction to that of arrow f 50 to reinsert the rods 64 and the bands 66 in the element 50, these bands having been replaced in a coplanar position and, if necessary, even closer together the cycle can thus start again from

of the phase already described.

  In Figures 21 to 27 is shown V a

  variant in which the packaging is carried out verti-

  correctly, and not horizontally, for a set of M 6 products which are suspended in a 'U' shape on a rod 202 which can be removed In this case, the suspended M 6 assembly is surrounded by two elements 204 intended to replace the channel 1, 102

  of the previous case, these elements being able to adopt a provision

  tion in a and able to carry out at least one movement of movement and relative distance as indicated by the arrows f 204 to surround the assembly 146 These elements 204 can slightly tighten the assembly N 6 to extract it from the rod 202 with a movement parallel to this rod, which can be a movement orthogonal to that of tightening indicated by the arrows 204 or else a movement conforming to the direction of said arrows The extraction of the rod 202 can be obtained by sliding this rod along of his

own axis. The two square elements 204, when tightened, reproduce the

  position of the canai in the previous case, with a vertical orientation It is thus

  it is possible to package the M 6 assembly.

  For this purpose, provision may be made for a member 250 similar to the member

  and supported by rollers 254, albeit without the intervention

  tion of an auxiliary roller like the roller 56 In this case also are provided shear means 258 like the means 58, an equipment 260 which can move in the direction and in the two directions indicated by the arrow f 250 to carry two slides 262 with the rods 264 and the bands 266 intended to pivot and to move closer to one another in order to penetrate into the member 250, grasp the tubular conditioning material TC to extract it upwards and move it aside then with the rotation of the bands 266, and to place it on the two elements 204 brought together to embrace the assembly M 146 Through the slots formed by the two elements 204 can take place the extraction of the assembly M 146 with the part TC material which envelops it, according to a provision similar to that b equipment 70

  described The equipment 260 can therefore be lowered 9

  kill again the insertion of the 266 close bands and

coplanar in element 250.

  It is understood that the drawings represent only an example, given exclusively as a practical demonstration of the invention, the latter being able to vary with regard to the forms and the arrangements, without going beyond the scope.

  established by the principle on which this invention is based.

Claims (10)

  1 A process for the formation of temporary packaging envelopes for products such as women's stockings and the like, in particular for treatment in dyeing and other operations, characterized in that: a continuous tubular mesh fabric is formed; that from said tubular fabric, tubular parts are obtained, one after the other; and that in each of these rooms   tubular, a set of regulated regulated products is placed rement.   2 Method according to claim 1, character-   dried by the fact that the tubular part is spaced apart in an elastic manner; that the set of products is inserted, by means of a combined movement, into said part; and that, with the cessation of spacing, the set of products is clamped resiliently by said piece for subsequent handling. 3 Method according to claim 1 or 2, characterized in that the cutting of the parts is   performed with the flattened tubular tissue.   4 Set of products packaged with the process   according to any one of the preceding claims.   Device for implementing the method   according to any one of claims 1 to 3, characterized   by the fact that it includes: a store, possibly at   spool, which provides the tubular fabric; means of spreading   tement of the end of said tissue comprising a member placed inside the tubular tissue; means for holding the fabric outside thereof and provided for sliding this fabric; tissue return means for extracting sections of this tissue to form loose pieces of fabric; spacing means combined with or cooperating with said return means; adjacent cutting means and downstream (relative to the direction of movement of the fabric) spacing means; and means for carrying out movements for insertion   products in the discarded room.   6 Device according to claim 5, characterized in that it comprises: a channel means provided for receiving the products to be packaged; a tubular fabric store; a wedge-shaped spacer element, hollow and with two opposite longitudinal slots; roller means for holding said spacer element so that this element is inside the end of the tubular fabric and surrounded by it; cutting means adjacent to the mouth of said wedge-shaped member; and means for gripping and spacing the tubular fabric, intended to be inserted into the wedge-shaped element, to remove the fabric from the magazine, move it aside and place it on the channel means, which is arranged in the same alignment, 7 device according to claim 5 or 6, characterized in that said gripping and spacing means comprise two bands coming out of two parallel rods, which pass the bands from a coplanar position to a parallel position , said rods being carried by means which bring them together and move them away; said rods with the coplanar strips being intended to be inserted into said wedge-shaped spacer and to be spaced apart through the slots, in order to cooperate with gripping means for the extraction of the end of the tubular tissue.   8 Device according to any one of   Claims 5 to 7, characterized in that it comprises   means for gripping the set of products and the piece of tubular fabric surrounding the channel, which act on   through a longitudinal slot in the channel.   9 Device according to any one of   Claims 5 to 8, characterized in that the channel   has a horizontal product positioning surface   the. Device in accordance with any of the   Claims 5 to 8, characterized in that the channel   is developed vertically, with two L-shaped or similar profiles designed to be brought closer or apart from a set of products suspended in an inverted "U" shape on a means of suspension.   11 Device according to claim 5, characterized in that it comprises: spacing equipment 505 with a frame and two pairs of support rollers 509 and a small inner frame 510, with rollers 512, held by the pairs support rollers 509, the small frame 510, with its rollers 512, being placed inside the end of the continuous tubular fabric, which is thus separated; a movable mechanism 520 provided with rods 528 intended to be inserted into the end of the tubular fabric separated by said small frame 510 and to move away in order to expand said end; means for maintaining the tubular fabric on said rods 528, to guarantee its entrainment with these rods; means for cutting the tubular fabric as soon as it leaves the spacer equipment 505; means for controlling the reciprocal distance of said rods in order to widen the cut piece of fabric; and means for placing this piece in a filling position.   12 Device according to claims 5 and 11,   characterized by the fact that said rods 528 are carried by pairs of arms 526 controlled for distance and the approximation of the rods.   13 Device according to claims 5, 11   and optionally 12, characterized in that the holding means comprise points 532 or the like intended to be pressed against at least one of the rods 528 in order to   maintain the tubular tissue to be extracted on this rod.   14 Device according to claims 5, 11   and 12, characterized in that an equipment 505 with the stems apart is presented to a filling mechanism comprising a blade 36, designed to act centrally on a set of products 142 placed on a plane 1 through an opening 24, under which is presented the discarded piece of fabric.