EP1281801B1 - Dispositif d'assouplissement de surfaces pour un tricot circulaire continu - Google Patents

Dispositif d'assouplissement de surfaces pour un tricot circulaire continu Download PDF

Info

Publication number
EP1281801B1
EP1281801B1 EP01830504A EP01830504A EP1281801B1 EP 1281801 B1 EP1281801 B1 EP 1281801B1 EP 01830504 A EP01830504 A EP 01830504A EP 01830504 A EP01830504 A EP 01830504A EP 1281801 B1 EP1281801 B1 EP 1281801B1
Authority
EP
European Patent Office
Prior art keywords
fabric
brushes
machine
guiding device
rotating roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01830504A
Other languages
German (de)
English (en)
Other versions
EP1281801A1 (fr
Inventor
Franco Bertoldo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sperotto Rimar SRL
Original Assignee
Sperotto Rimar SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sperotto Rimar SRL filed Critical Sperotto Rimar SRL
Priority to PT01830504T priority Critical patent/PT1281801E/pt
Priority to DE60101100T priority patent/DE60101100T2/de
Priority to ES01830504T priority patent/ES2210116T3/es
Priority to EP01830504A priority patent/EP1281801B1/fr
Priority to TR2003/02279T priority patent/TR200302279T4/xx
Priority to AT01830504T priority patent/ATE253135T1/de
Publication of EP1281801A1 publication Critical patent/EP1281801A1/fr
Application granted granted Critical
Publication of EP1281801B1 publication Critical patent/EP1281801B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C5/00—Shaping or stretching of tubular fabrics upon cores or internal frames
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics

Definitions

  • the present invention relates to a machine for softening surfaces of a continuous circular knitted fabri.
  • Circular knitted fabrics are produced using looms - called in fact circular knitting machines - which interweave the yarn by means of needles suitably arranged along the top circumference of a rotating cylindrical element. Consequently, the fabric is formed in a closed circular shape and therefore is similar to a continuous tube. For this reason, circular knitted fabric is also called - using the current textile jargon - tubular knitted fabric, or even more simply, tubular fabric.
  • Circular knitted fabrics have to undergo, depending on the circumstances, a succession of processing operations involving preparation, dyeing and finishing such as to make them aesthetically suitable for tailoring.
  • a typical finishing step consists in softening. It is performed in order to make fabrics soft to the touch and also modify substantially their appearance. The softening operation may be performed chemically or mechanically.
  • the mechanical softening process may be performed both on fabrics which have a tubular form, as they descend from the circular knitting machine, and on fabrics which have an open form, obtained by means of cutting of the tubular product along one of the two side edges.
  • Italian patent application MI 2000A 001781, filed on 1 August 2000 in the name of the same Applicant, relates to a machine for softening the surface of a continuous fabric, comprising at least one row of rotating roller brushes able to perform a brushing action over a first surface of the fabric; each roller brush is operationally connected to a respective motor unit capable of causing it to rotate at a prechosen speed and in a prechosen direction of rotation; at least one penetrating member for varying the angle of winding of the fabric onto a brush; suction members capable of removing fine fibrous dust; an extension roller equipped with load sensors able to detect the tension of the fabric and at least one additional rotating roller brush capable of performing an additional brushing action over a second surface of said fabric; each rotating roller brush is equipped with bunches of filaments.
  • This machine is particularly suitable for processing open-form fabrics.
  • the tubular fabric has a flattened form and the side edges of the tubular fabric and the surface portions adjacent to them are subject to a treatment different from that of central surface portions.
  • US 3 553 801 A briefly referred to as D1, describes an apparatus for treating a running fabric web.
  • the apparatus according to D1 comprises driving means for advancing said fabric web; first and second rotating roller brushes having axes of rotation substantially parallel to each other and to said fabric web; and motor units, each roller brush being operationally connected to a respective motor unit rotating it at a prechosen speed and in a prechosen direction of rotation which are independent of the speed and the direction of rotation of another brush.
  • D1 clearly relates only to fabric webs and fails to describe additional rollers for threating the edges of the fabric, namely no mention is made to additional roller brushes having axis of rotation substantially perpendicular to the external surfaces of the fabric for carrying out a brushing action on the edges.
  • D2 describes a system for feeding a tubular knitted fabric to tolls or other handling means.
  • D2 describes a mechanism for guiding and feeding the material in such a way as to permit the center portions of a flattened fabric to be drawn ahead at a faster rate while the friction at the edges retards the side portions and to apply a special corrective adjustment of the edges of the fabric just before it is received between the rolls.
  • D2 describes brush rolls (designated as 44 in D2) having bristles for engaging the fabric with little deflection so that there is an intimate resilient surface gripping of the fabric by the tips of the bristles to positively push or slide it along rods at a rate corresponding to the speed of the rollers. This action may be likened to the teeth of a gear engaging a rack but does not provide any brushing action on the edges of the tubular flattened fabric.
  • the object of the present invention is to improve the surface softening machine described above, while ensuring that it retains its constructional simplicity. This object is fully achieved with a machine according to independent claim 1.
  • Preferred embodiments are the subject of dependent claims 2 to 11.
  • said machine comprises at least one device for guiding said fabric in tubular and flattened form, said guiding device being able to be engaged with said fabric and disengaged therefrom and carrying said additional brushes.
  • said guiding device is provided with expanders for transverse extension of said fabric in tubular form, said expanders having end portions carrying support members for said side edges of said fabric, said support members being located opposite said additional brushes.
  • said additional brushes are mounted on arms connected to said guiding device by means of pins and means for adjusting the distance of said additional brushes with respect to said side edges of said fabric.
  • said additional brushes are operationally connected to respective motor means and to mechanisms able to cause the displacement of said additional brushes along the respective axes of rotation.
  • said guiding device is arranged upstream of said first row of first brushes, said guiding device carrying two of said additional brushes.
  • said machine comprises another guiding device arranged upstream of said second row of second brushes, said other guiding device carrying another two of said additional brushes.
  • said machine comprises a further guiding device arranged downstream of said second row of second brushes, said further guiding device carrying another two of said additional brushes.
  • said guiding device can be engaged with and disengaged from said fabric by means of an operating mechanism comprising a threaded shaft operationally connected to a motor.
  • said fabric is wound onto said first row of first brushes forming two branches which bring into contact with said first brushes opposite sectors of said first surface portion.
  • said fabric is wound onto said second row of second brushes forming two branches which bring into contact with said second brushes opposite sectors of said second surface portion.
  • the machine according to the present invention performs in a single pass the simultaneous processing of two surface portions of a circular knitted fabric both in tubular form and in open form and also performs the processing of the side edges of the fabric when it is in tubular form. it is thus able to achieve a finished fabric having a uniform appearance over two surface portions and also along its side edges, when it is in tubular form.
  • Fig. 1 shows a machine 1 for softening surfaces of a circular knitted fabric 2 in tubular form.
  • the tubular fabric 2 enters into the machine 1 in a flattened form and has a first external surface portion 2a, a second external surface portion 2b, opposite to the surface portion 2a, and two side edges 21 and 21' (Fig. 4).
  • the tubular fabric 2 moves inside the machine 1, proceeding in the feeding direction indicated by the arrow A.
  • the machine 1 comprises a group 3 for extending and widening the tubular fabric 2, a first unit 4 for processing the surface portion 2a of the tubular fabric 2, a second unit 5 for processing the surface portion 2b of the tubular fabric 2, arranged following the first processing unit, and a group 6 for collecting the processed tubular fabric 2.
  • the exit point of the fabric 2 from the machine 1 is indicated by the arrow B.
  • the group 3 for extending and widening the tubular fabric 2 in turn comprises a widening device 32, for example, of the idle ring type, which extends the tubular fabric 2, a motorised roller 33 for feeding the tubular fabric, an electrically, pneumatically or hydraulically operated tensioning roller 34 and a device 35 for guiding the tubular fabric.
  • the devices 32 and 35 and the rollers 33 and 34 are supported by two side shoulders, one of which, indicated by 30, is shown in Fig. 1.
  • the guiding device 35 comprises two expanders 37 and 37' for extending the tubular fabric 2, which are inserted inside the latter and are engaged with its edges 21 and 21'.
  • the expanders 37 and 37' are associated magnetically with two C-shaped support plates 36 and 36'.
  • the expanders 37 and 37' and the plates 36 and 36' are equipped with permanent magnets, or electromagnets, which, by means of attraction, join the expanders 37 and 37' rigidly to the plates 36 and 36' and, by means of a repelling action, keep the expanders aligned with the plates, as described in European patent application EP-0,900,872 in the name of the same Applicant.
  • the plates 36 and 36' may be moved towards each other or away from each other by means of an operating mechanism comprising a threaded shaft 31 with a right-hand and left-hand thread and a motor 310, as described in the abovementioned European patent application EP-0,900,872.
  • Each plate 36 or 36' has, mounted on it, a pair of motorised wheels 316, 317 and 316', 317', respectively, each of which causes the movement of a belt 336, 337, 336', 337' associated with pairs of idle roller wheels 326, 327, 326' and 327' mounted on the expanders 37 and 37'.
  • the tubular fabric 2 is fitted over the expanders 37 and 37' and inserted into the gap between the wheels 316, 317 and 316', 317' and the respective belts 336, 337 and 336', 337'.
  • the fabric 2 is gripped between the outer wheels and the inner belts and advances by means of the pushing action resulting from adherence to the latter.
  • the plates 36 and 36' have, mounted on them in a projecting manner, rotating roller brushes 38 and 38' which have the function of brushing and softening the side edges 21 and 21' of the fabric 2.
  • the brushes 38 and 38' are situated at the exit end of the guiding device 35 and are rotatably supported by respective arms 330 and 330' connected to the plates 36 and 36' by means of pins 318 and 318' and adjusting means 331, 331', 332, 332' which allow the distance of the brushes 38 and 38' from the side edges 21 and 21' of the fabric 2 to be varied.
  • roller brushes 38 and 38' are driven rotatably by respective motors 39 and 39' via shafts 319 and 319' having axes of rotation substantially perpendicular to the surface portions 2a and 2b of the fabric 2.
  • the roller brushes 38 and 38' are also operationally connected to mechanisms 333 and 333' able to cause displacement thereof along the respective axes of rotation.
  • the expanders 37 and 37' have end portions 37a and 37'a which are provided with two frame assemblies 320 and 320' located opposite the roller brushes 38 and 38'.
  • the frame assemblies 320 and 320' support the side edges 21 and 21' of the tubular fabric 2 on the inside and keep them tensioned.
  • the frame assemblies 320 and 320' act as a support surface for the side surfaces and as opposition means for the roller brushes 38 and 38'.
  • the extension and the depth of the contact zone may be adjusted by varying the distance of the brushes from the side edges of the tubular fabric.
  • roller brushes 38 and 38' make contact with the external surface of the side edges 21 and 21' and, when they are operating, rotate and may also perform guided translatory movements along the respective axes of rotation, performing a guided brushing action over the external surface of the side edges 21 and 21' of the tubular fabric 2.
  • the roller brushes 38 and 38' may be disengaged from the fabric 2 when the fabric being processed in the machine 1 is in the open form and not tubular form. This is performed by displacing the support plates 36 and 36' of the guiding device 35 by means of the operating mechanism comprising the threaded shaft 31 and the motor 310 and by removing the expanders 37 and 37'. In this way a gap of suitable width for allowing the fabric in open form to pass through upstream of the unit 4 is left free.
  • the processing unit 4 comprises a motorised roller 41 for feeding the fabric and a row 42 of three rotating roller brushes which are arranged in vertical succession and with their axes of rotation parallel to each other and (Fig. 2) to the surface portion 2a of the fabric 2.
  • the unit 4 also comprises idle rollers 49 for driving the tubular fabric 2, penetrating rollers 44 and 44' which are operationally connected to respective electrically, pneumatically or hydraulically operated actuators 45 and 45', a widening cylinder 46 connected to load sensors, not shown, a motorised roller 47 for extraction of the tubular fabric 2, and a synchronisation jockey cylinder 48.
  • the unit 4 is housed inside structure 40 having two sidewalls 401 and 402 (Fig. 2).
  • the roller brushes 43 are rotatably supported in the two sidewalls of the structure 40 and are operationally connected to respective gearmotors 430 (Fig. 2). Each gearmotor 430 of each roller brush 43 is capable of operating independently of those of the other brushes 43.
  • the rollers 41 and 47 are operationally connected to gearmotors, not shown.
  • the rollers 41, 47, 49, 44 and 44' and the cylinders 46 and 48 are also rotatably supported and the actuators 45 and 45' mounted in the sidewalls of the structure 40.
  • the motorised roller 41 causes the tubular fabric 2 to advance, turning over the surface portion 2a outwards with respect to the roller 41.
  • the fabric 2 is wound onto the row 42 of roller brushes 43 so that opposite sectors of the surface portion 2a of its branches 201 and 202 come into contact simultaneously with the roller brushes 43.
  • the penetrating rollers 44 and 44' are arranged upstream and downstream of each brush 43 in the direction of feeding of the fabric 2 and keep in contact with opposite sectors 431 and 432 of the roller brushes 43 opposite sectors of the surface portion 2a of the descending section 201 and ascending section 202, respectively, of the tubular fabric 2.
  • the penetrating rollers 44 and 44' are actuated so to move at right angles with respect to the fabric 2 by the respective actuators 45 and 45' and move towards or away from each other so as to increase or reduce the angle of winding of the fabric 2 onto each roller brush 43.
  • Four pairs of opposite penetrating rollers 44 and 44' are present in the processing unit 4.
  • Suction ducts 411 provided with shaped slits 412 are associated with the roller brushes 43 (Fig. 2).
  • the ducts 411 are connected to headers 421 and 422 by means of openings 441 (Fig. 1) formed in the sidewall 401 and to suction means and to collection and filtering groups, not shown, arranged outside the structure 40.
  • the processing unit 5 comprises a motorised roller 51 for feeding the fabric and a row 52 of three rotating roller brushes 53 arranged in vertical succession and with their axes of rotation parallel to each other (Fig. 3) and to the surface portion 2b of the fabric 2.
  • the unit 5 also comprises idle rollers 59 for transmission of the tubular fabric, penetrating rollers 54 and 54' operationally connected to respective electrically, pneumatically or hydraulically operated actuators 55 and 55', a widening cylinder 55 connected to load sensors, not shown, a motorised roller 57 for extraction of the tubular fabric 2 and a synchronisation jockey cylinder 58.
  • the unit 5 is housed in a structure 50 with two sidewalls 501 and 502 (Fig. 3).
  • the roller brushes 53 are rotatably supported in the two sidewalls of the structure 50 and are operationally connected to respective gearmotors 530 (Fig. 3). Each gearmotor 530 of each roller brush 53 is capable of functioning independently of those of the other brushes 53.
  • the rollers 51 and 57 are operationally connected to gearmotors 510 and 570.
  • the rollers 51, 57, 59, 54 and 54' and the cylinders 56 and 58 are also rotatably supported and the actuators 55 and 55' mounted in the sidewalls of the structure 50.
  • the motorised roller 51 causes the tubular fabric 2 to advance, turning over the surface portion 2a outwards with respect to the roller 51.
  • the fabric 2 is wound onto the row 52 of roller brushes 53 so that opposite sectors of the surface portion 2b of its branches 203 and 204 come into contact simultaneously with the roller brushes 53.
  • the penetrating rollers 54 and 54' are arranged upstream and downstream of each brush 53 in the direction of feeding of the fabric 2 and keep, in contact with opposite sectors 531 and 532 of the roller brushes 53, opposite sectors of the surface portion 2b of the ascending section 203 and descending section 204, respectively, of the tubular fabric 2.
  • the penetrating rollers 54 and 54' are actuated so to move at right angles with respect to the fabric 2 by the respective actuators 55 and 55' so as to increase or reduce the angle of winding of the fabric 2 onto each roller brush 53.
  • Four pairs of opposite penetrating rollers 54 and 54' are present in the processing unit 5.
  • Suction ducts 511 provided with shaped slits 512 are associated with the roller brushes 53 (Fig. 3).
  • the ducts 511 are connected to headers 521 and 522 by means of openings 541 (Fig. 1) formed in the sidewall 501 and to suction means and collection and filtering groups arranged outside the structure 50.
  • the group 6 for collecting the processed tubular fabric 2 essentially comprises a motorised roller 62 for discharging the fabric 2 and two rollers 65 and 66 for collecting the fabric 2.
  • the roller 62 is operationally connected to a respective motor, not shown, and the rollers 65 and 66 are driven rotationally by the roller 62 via movement transmission means, not shown.
  • the roller 62 is rotationally supported in shoulders 60, 61.
  • the rollers 65 and 66 are rotatably supported in pivoting arms 63, 64.
  • the tubular fabric 2 which is fed by the motorised roller 33 and pre-tensioned by the tensioning roller 34, is made to advance in the longitudinal direction by means of the guiding device 35, being pushed by the engagement between the motorised wheels 316, 317 and 316', 317' and the respective idle belts 336, 337 and 336', 337' (Fig. 4).
  • the tubular fabric 2 is widened transversely and overfed longitudinally.
  • the action of transverse widening of the tubular fabric 2 has the function of flattening folds and wrinkles in order to tension the two surface portions 2a and 2b and ensure that they are properly smoothed for the subsequent softening process. Since the transverse widening produces a certain longitudinal shortening due to the intrinsic elasticity of the circular stitch, the overfeeding of the tubular fabric 2 offsets and compensates for the undesirable effects of excessive contraction.
  • the side edges 21, 21' of the tubular fabric 2 are brushed by the roller brushes 38 and 38' which rotate and may move along their axes of rotation.
  • the roller brushes 38 and 38' act both on the side edges 21, 21' of the fabric and on the surface portions 2a and 2b which are adjacent to the edges and are supported and kept tensioned by the frame assemblies 320 and 320'. Therefore, the frame assemblies 320 and 320' assist and render more effective the action of the roller brushes 38 and 38' on the side edges of the fabric.
  • the guiding device 35 feeds the tubular fabric 2 inside the first processing unit 4 where it is wound around the motorised roller 41.
  • the motorised roller 41 causes the tubular fabric 2 to advance, turning over the surface portion 2a outwards.
  • the surface portion 2a comes into contact with the sectors 431 of the rotating roller brushes 43 and undergoes a first brushing and softening operation.
  • the motorised extraction roller 47 causes the tubular fabric 2 to advance outside of the processing unit 4. As the section 202 of the fabric moves along an ascending path, the surface portion 2a comes into contact with the sectors 432 of the rotating roller brushes 43 and undergoes a second brushing and softening operation.
  • the zones of contact between the roller brushes 43 and the surface portion 2a are varied and regulated by the movement, towards or away from each other, of the penetrating rollers 44 and 44' which are actuated by the respective actuators 45 and 45'.
  • the widening cylinder 46 with load sensors controls the longitudinal tension of the fabric 2 inside the unit 4 by varying its feed speed.
  • the synchronisation jockey roller 48 synchronises the speed of movement of the tubular fabric 2 as it passes from the first processing unit 4 to the second processing unit 5.
  • the motorised roller 51 causes overturning of the surface portion of the tubular fabric 2 undergoing processing in the processing unit 5, causing the tubular fabric 2 to advance with the surface portion 2b directed outwards. As the section 203 of the fabric 2 moves along an ascending path, the surface portion 2b comes into contact with the sectors 531 of the rotating roller brushes 53 and undergoes a first brushing and softening operation.
  • the motorised extraction roller 57 causes the tubular fabric 2 to advance outside of the processing unit 5. As the section 204 of the fabric moves along a descending path, the surface portion 2b comes into contact with the sectors 532 of the rotating roller brushes 53 and undergoes a second brushing and softening operation.
  • the zones of contact between the roller brushes 53 and the surface portion 2b are varied and regulated by the movement, towards or away from each other, of the penetrating rollers 54 and 54' which are actuated by the respective actuators 55 and 55'.
  • the widening cylinder 56 with load sensors controls the longitudinal tension of the fabric 2 inside the unit 5 by varying its feed speed.
  • the synchronisation jockey roller 58 synchronises the speed of movement of the tubular fabric 2 as it passes from the second processing unit 5 to the group 6 for collecting the processed tubular fabric 2.
  • the tubular fabric 2 emerges from the unit 5 with both its surface portions 2a and 2b processed.
  • the processed tubular fabric 2 engages with the motorised discharge roller 62 and with the rotating rollers 65 and 66 which facilitate the collection thereof in pleated form as a result of the pivoting oscillating movement of the arms 63, 64.
  • the fine fibrous dust which is produced following the mechanical beating and abrasive action of the brushes 43 and 53 is removed and conveyed away by means of the suction ducts 411, 511 and the associated shaped slits 412, 512.
  • the slits 412 and 512 face the surface portions 2a and 2b of the tubular fabric and are arranged in zones where brushes and fabric make contact, namely in the zones where the dust itself is formed. In this way, both localised accumulation of dust and dispersion inside the structures 40, 50 are minimised.
  • the suction openings 441, 541 formed in the sidewalls 401, 501 specifically have the function of capturing the residual portion of dust which has eluded the action of the suction ducts.
  • Fig. 6. shows a machine 101 which is a variant of that shown in Fig. 1.
  • a second device 80 for guiding the tubular fabric 2, which is of the same type as the device 35 is arranged downstream of the first processing unit 4 and upstream of the second processing unit 5.
  • the device 80 is supported in the structure 50 of the processing unit 5 between the redirecting rollers 59.
  • the device 80 is equipped with expanders 82, 82', which are the same as the expanders 37, 37', and with roller brushes 81, 81', which are the same as the brushes 38, 38'.
  • the guiding device 80 receives the tubular fabric 2 from the roller 47 for extraction from the unit 4 and directs it towards the feed roller 51 of the unit 5.
  • the operation of brushing and softening of the side edges 21, 21' of the tubular fabric 2 is performed a first time by means of the brushes 38 and 38' of the guiding device 35, as a treatment preceding that of the surface portion 2a, and is repeated a second time by means of the guiding device 80, as a treatment preceding that of the surface portion 2b, opposite to the surface portion 2a.
  • the guiding device 80 is located respectively downstream and upstream of the motorised rollers 47 and 51 and between them there is located the synchronisation jockey device 48 which synchronises the speed of movement of the tubular fabric 2 as it passes from the first processing unit 4 to the second processing unit 5, the presence of a tensioning roller, such as the roller 34 of the group 3 (Fig. 1), is superfluous.
  • Fig. 7 shows a machine 201 which is a variant of that shown in Fig. 1.
  • a further device 70 for guiding the tubular fabric 2 which is of the same type as the device 35, is arranged in the collection group 6, downstream of the second processing unit 5, which in this case also comprises a drive roller 69.
  • the guiding device 70 is provided with expanders 72, 72', which are the same as the expanders 37, 37', and roller brushes 71, 71', which are the same as the brushes 38, 38'.
  • the expanders 72, 72' have end portions 72a, 72'a which direct the tubular fabric 2 towards a tensioning roller 67 and a roller 68 for driving the processed tubular fabric 2.
  • the operation of brushing and softening the side edges 21, 21' of the tubular fabric 2 is performed as a treatment following that of the two surface portions 2a, 2b.
  • the machines 1, 101 and 201 are able to process in a single pass the two surface portions, both of a tubular knitted fabric and of a knitted fabric in open form or, more generally, of a woven fabric or a nonwoven fabric. In this latter case, the guiding devices 35, 80, 70 are disengaged from the fabric.
  • the brushes 43, 53, 38, 38', 71, 71', 81 and 81' are provided with bunches of filaments made of synthetic material.
  • the filaments consist of nylon fibres incorporating granules chosen from the group comprising silicon carbide, aluminium oxide and synthetic diamond.
  • the length of the filaments varies from 50 to 150 mm and preferably is between 80 and 120 mm.
  • the diameter of the filaments varies from 0.4 to 0.8 mm and preferably is between 0.5 and 0.6 mm.
  • the grain (fineness) of the filaments varies from 200 and 800 and preferably is between 240 and 320.
  • the density (or population) of the filaments in each bunch varies from 20 to 90 and preferably is between 35 and 75.
  • the density (or population) of the bunches in each brush varies from 35/dm 2 to 75/dm 2 and preferably is between 55/dm 2 and 65/dm 2 .
  • the diameter of the roller of the brushes varies from 100 to 150 mm and preferably is between 115 and 135 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Knitting Of Fabric (AREA)

Claims (11)

  1. Machine (1 ; 101 ; 201) pour assouplir un article tricoté circulaire continu (2), l'article circulaire (2) pénétrant dans la machine sous une forme aplatie et comportant une première partie de surface externe (2a), une deuxième partie de surface externe opposée (2b) et deux bords latéraux (21 et 21'), l'article circulaire (2) avançant dans une direction choisie au préalable, la machine (1 ; 101 ; 201) comprenant :
    des moyens de commande d'avance (41 ; 51) pour avancer ledit article (2),
    des premiers et deuxièmes rouleaux-brosses rotatifs (43, 53) ayant des axes de rotation sensiblement parallèles les uns aux autres et audit article (2),
    des unités de moteur (430 ; 530), chaque rouleau-brosse (43, 53) étant relié de manière opérationnelle à une unité de moteur (430 ; 530) respective le faisant tourner à une vitesse choisie au préalable et dans une direction de rotation choisie au préalable qui sont indépendantes de la vitesse et de la direction de rotation d'une autre brosse (43, 53),
       caractérisée en ce qu'elle comprend également :
    des rouleaux-brosses rotatifs supplémentaires (38, 38' ; 71, 71' ; 81, 81') ayant des axes de rotation sensiblement perpendiculaires auxdites première et deuxième parties de surface externe (2a, 2b) dudit article (2), lesdites brosses supplémentaires (38, 38' ; 71, 71' ; 81, 81') se mettant en prise avec les bords latéraux (21, 21') dudit article (2) et effectuant une action de brossage sur lesdits bords.
  2. Machine (1 ; 101 ; 201) selon la revendication 1, caractérisée en ce qu'elle comprend en outre :
    des premier et deuxième éléments pénétrants (44, 44' ; 54, 54') modifiant l'angle d'enroulement dudit article (2) sur l'un desdits rouleaux-brosses rotatifs (43, 53),
    des premiers et deuxièmes moyens extensibles (46, 56), les moyens extensibles étant équipés de détecteurs de charge et détectant la tension dudit article (2) se mettant en prise avec lesdits rouleaux-brosses rotatifs (43, 53), et
    des premiers et deuxièmes moyens d'aspiration (411, 511) retirant une fine poussière fibreuse produite par l'action de brossage desdits rouleaux-brosses rotatifs (43, 53) sur lesdites première et deuxième parties de surface externe (2a, 2b).
  3. Machine (1 ; 101 ; 201) selon la revendication 1 ou 2, caractérisée en ce qu'elle comprend au moins un dispositif de guidage (35 ; 70 ; 80) pour guider ledit article (2) sous une forme tubulaire et aplatie, ledit dispositif de guidage (35 ; 70 ; 80) mis en prise avec ledit article (2) et séparé de celui-ci et supportant lesdites brosses supplémentaires (38, 38' ; 71, 71' ; 81, 81').
  4. Machine (1 ; 101 ; 201) selon la revendication 3, caractérisée en ce que ledit dispositif de guidage (35 , 70 ; 80) est pourvu d'élargisseurs (37, 37' ; 72, 72' ; 82, 82') pour l'extension transversale dudit article (2) sous forme tubulaire, lesdits élargisseurs (37, 37' ; 72, 72' ; 82, 82') comportant des parties d'extrémité (37a, 37a' ; 72a, 72a' ; 82a, 82a') supportant des éléments de support (320, 320') pour lesdits bords latéraux (21, 21') dudit article (2), lesdits éléments de support (320, 320') étant situés face auxdites brosses supplémentaires (38, 38' ; 71, 71' ; 81, 81').
  5. Machine (1 ; 101 ; 201) selon la revendication 2, caractérisée en ce qu'elle comprend, en outre, des bras (330, 330') et des moyens d'ajustement de distance (331, 331' ; 332, 332'), lesdites brosses supplémentaires (38, 38' ; 71, 71' ; 81, 81') étant montées sur les bras (330, 330') reliés audit dispositif de guidage (35 ; 70 ; 80) à l'aide de broches (318, 318') et par les moyens (331, 331' ; 332, 332') pour ajuster la distance desdites brosses supplémentaires (38, 38' ; 71, 71' ; 81, 81') par rapport auxdits bords latéraux (21, 21') dudit article (2).
  6. Machine (1 ; 101 ; 201) selon la revendication 1, caractérisée en ce qu'elle comprend, en outre, des moyens formant moteur (39, 39') et des mécanismes de déplacement (333, 333'), lesdites brosses supplémentaires (38, 38' ; 71, 71' ; 81, 81') étant reliées de manière opérationnelle aux moyens formant moteur (39, 39') respectifs et aux mécanismes (333, 333') déplaçant lesdites brosses supplémentaires (38, 38' ; 71, 71' ; 81, 81') le long des axes de rotation respectifs.
  7. Machine (1 ; 101 ; 201) selon la revendication 3, caractérisée en ce que ledit dispositif de guidage (35) est agencé en amont desdits premiers rouleaux-brosses rotatifs (43), ledit dispositif de guidage (35) supportant deux desdits rouleaux-brosses rotatifs supplémentaires (38, 38').
  8. Machine (1 ; 101 ; 201) selon la revendication 7, caractérisée en ce qu'elle comprend un autre dispositif de guidage (80) agencé en amont desdits deuxièmes rouleaux-brosses rotatifs (53), ledit autre dispositif de guidage (80) supportant deux autres desdites brosses supplémentaires (81, 81').
  9. Machine (1 ; 101 ; 201) selon la revendication 7, caractérisée en ce qu'elle comprend un dispositif de guidage supplémentaire (70) agencé en aval desdits deuxièmes rouleaux-brosses rotatifs (53), ledit dispositif de guidage supplémentaire (70) supportant deux autres desdites brosses supplémentaires (71, 71').
  10. Machine (1 ; 101 ; 201) selon la revendication 3, caractérisée en ce qu'elle comprend, en outre, un mécanisme d'actionnement, comprenant un arbre fileté (31) relié de manière opérationnelle à un moteur (310), ledit dispositif de guidage (35 ; 70 ; 80) étant mis en prise avec ledit article (2) et séparé de celui-ci au moyen du mécanisme d'actionnement.
  11. Machine (1 ; 101 ; 201) selon la revendication 1, caractérisée en ce qu'elle comprend, en outre, des moyens de commande d'extraction (47, 57) coopérant avec les moyens de commande d'avance (41, 51) de sorte que ledit article (2) soit enroulé sur lesdits rouleaux-brosses rotatifs (43, 53) formant deux branches (201, 202 ; 203, 204) qui amènent en contact avec lesdits rouleaux-brosses rotatifs (43, 53) des secteurs opposés desdites parties de surface (2a, 2b).
EP01830504A 2001-07-27 2001-07-27 Dispositif d'assouplissement de surfaces pour un tricot circulaire continu Expired - Lifetime EP1281801B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PT01830504T PT1281801E (pt) 2001-07-27 2001-07-27 Maquina para amolecer superficies de uma malha circular continua
DE60101100T DE60101100T2 (de) 2001-07-27 2001-07-27 Maschine zum Flauschen von Oberflächen eines endlosen Rundgestricks
ES01830504T ES2210116T3 (es) 2001-07-27 2001-07-27 Maquina para suavizar la superficie de un tejido de genero de punto circular continuo.
EP01830504A EP1281801B1 (fr) 2001-07-27 2001-07-27 Dispositif d'assouplissement de surfaces pour un tricot circulaire continu
TR2003/02279T TR200302279T4 (tr) 2001-07-27 2001-07-27 Kesintisiz yuvarlak örülmüş bir dokumanın yüzeylerini yumuşatmaya ilişkin makine.
AT01830504T ATE253135T1 (de) 2001-07-27 2001-07-27 Maschine zum flauschen von oberflächen eines endlosen rundgestricks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01830504A EP1281801B1 (fr) 2001-07-27 2001-07-27 Dispositif d'assouplissement de surfaces pour un tricot circulaire continu

Publications (2)

Publication Number Publication Date
EP1281801A1 EP1281801A1 (fr) 2003-02-05
EP1281801B1 true EP1281801B1 (fr) 2003-10-29

Family

ID=8184635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830504A Expired - Lifetime EP1281801B1 (fr) 2001-07-27 2001-07-27 Dispositif d'assouplissement de surfaces pour un tricot circulaire continu

Country Status (6)

Country Link
EP (1) EP1281801B1 (fr)
AT (1) ATE253135T1 (fr)
DE (1) DE60101100T2 (fr)
ES (1) ES2210116T3 (fr)
PT (1) PT1281801E (fr)
TR (1) TR200302279T4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899758A (zh) * 2010-08-04 2010-12-01 陈明书 多角刷毛辊组合件

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20030208A1 (it) * 2003-10-17 2005-04-18 Lafer Spa Dispositivo e procedimento di smerigliatura per tessuti tubolari.
WO2015107380A1 (fr) * 2014-01-17 2015-07-23 Norman International S.P.A. Laineuse pour tissus tubulaires sans couture
IT201800008103A1 (it) * 2018-08-16 2020-02-16 Sintec Textile Srl Apparato e metodo per la smerigliatura di tessuti

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2190860A (en) * 1938-09-13 1940-02-20 Samcoe Holding Corp Fabric feeding system
US3553801A (en) * 1968-02-19 1971-01-12 Hadley Co Inc Fabric treating apparatus
IT1294995B1 (it) * 1997-09-08 1999-04-27 Sperotto Rimar Spa Dispositivo allargatore perfezionato per tessuti a maglia tubolare

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899758A (zh) * 2010-08-04 2010-12-01 陈明书 多角刷毛辊组合件
CN101899758B (zh) * 2010-08-04 2011-12-14 陈明书 多角刷毛辊组合件

Also Published As

Publication number Publication date
ATE253135T1 (de) 2003-11-15
DE60101100D1 (de) 2003-12-04
TR200302279T4 (tr) 2004-01-21
DE60101100T2 (de) 2004-07-22
PT1281801E (pt) 2004-03-31
EP1281801A1 (fr) 2003-02-05
ES2210116T3 (es) 2004-07-01

Similar Documents

Publication Publication Date Title
KR100408610B1 (ko) 비탄성얀및베어엘라스토머얀으로직물을편성하는방법및장치와스웨터편성물의구성
US4463483A (en) Fabric napping apparatus
US3973359A (en) Web abrading assembly
US2583630A (en) Apparatus for shrinking and condensing textile fabrics
US3345231A (en) Apparatus and method for making non-woven netting
EP1281801B1 (fr) Dispositif d'assouplissement de surfaces pour un tricot circulaire continu
US3408709A (en) Method for softening fibrous sheet material
TW518378B (en) Continuous pulling device for knitting machine
US5109630A (en) Machine and method to enhance fabric
US848416A (en) Machine for biasing cloth.
US5020340A (en) Circular textile machine for simultaneously forming a plurality of tubular knitted articles such as panty-hose (tights) and the like
US20120233826A1 (en) Method and apparatus for compacting tubular fabrics
EP1072713B1 (fr) Dispositif et procédé pour l'émerisage des matières textiles
KR100215682B1 (ko) 복합 시트 제작 공정 및 장치
US5467513A (en) Method and apparatus for heat-setting carpet yarn using variable yarn laying mechanism
US5025644A (en) Sueding means in a textile fabric-producing machine
US1346136A (en) Machine for and method of producing knitted puttees and the like
US4430779A (en) Apparatus for steam conditioning textile fabrics
US3956907A (en) Take up
EP1178145A2 (fr) Machine pour l'adoucissement de la surface d'une étoffe
US4191010A (en) Process and device for producing fancy yarn
US2160989A (en) Process of treating yarns and fabrics made therefrom
US2373768A (en) Method and mechanism for treating filaments or fibers
EP1526208B1 (fr) Dispositif et methode de broyage pour tissus tubulaires
CN1045823A (zh) 针织机中选择和控制针的机械结构和用于该结构的针

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020604

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AXX Extension fees paid

Extension state: SI

Payment date: 20030311

Extension state: RO

Payment date: 20030311

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: RO SI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031029

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031029

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031029

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031029

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031029

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60101100

Country of ref document: DE

Date of ref document: 20031204

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040129

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040129

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20040400141

Country of ref document: GR

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20040128

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2210116

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040727

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040727

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040730

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20050627

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20050629

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050707

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050727

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050728

Year of fee payment: 5

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070129

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20070129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070330

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070622

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070704

Year of fee payment: 7

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060728

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SPEROTTO RIMAR S.R.L.

Free format text: SPEROTTO RIMAR S.R.L.#VIA MARCORA, 7#20121 MILANO (IT) -TRANSFER TO- SPEROTTO RIMAR S.R.L.#VIA MARCORA, 7#20121 MILANO (IT)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20070704

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060728

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070725

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070202

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100906

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080727