EP1312707A2 - Schärmaschine und Schärverfahren - Google Patents

Schärmaschine und Schärverfahren Download PDF

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Publication number
EP1312707A2
EP1312707A2 EP02425666A EP02425666A EP1312707A2 EP 1312707 A2 EP1312707 A2 EP 1312707A2 EP 02425666 A EP02425666 A EP 02425666A EP 02425666 A EP02425666 A EP 02425666A EP 1312707 A2 EP1312707 A2 EP 1312707A2
Authority
EP
European Patent Office
Prior art keywords
belts
warp
plane
thread
drum
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.)
Granted
Application number
EP02425666A
Other languages
English (en)
French (fr)
Other versions
EP1312707A3 (de
EP1312707B1 (de
Inventor
Roberto Vieri
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Age SNC Di Vieri A & C
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
Priority claimed from IT2001FI000206A external-priority patent/ITFI20010206A1/it
Priority claimed from ITFI20020175 external-priority patent/ITFI20020175A1/it
Application filed by Age SNC Di Vieri A & C filed Critical Age SNC Di Vieri A & C
Publication of EP1312707A2 publication Critical patent/EP1312707A2/de
Publication of EP1312707A3 publication Critical patent/EP1312707A3/de
Application granted granted Critical
Publication of EP1312707B1 publication Critical patent/EP1312707B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H3/00—Warping machines
    • D02H3/04—Sample warpers

Definitions

  • the present invention refers to a warper and a method of warping.
  • Warpers are known machines for the preparation of loom's warp beams and comprising at least two main parts, that is, the very warper and the creel or frame provided for carrying threads-feeding reeles for the warping.
  • the warping comprises the loading, that is, the placement of the reels onto the creel according to a programmed warping sequence, the very warping, that is, the joining of the ends of the thread unwinding from the reels to form a series of parallel threads, and the beaming, that is, the transfer of threads from the warper to the beam.
  • the threads are unreeled individually, that is, one at a time, in a preset sequence as related to the effect to be obtained, and guided, that is, wound up in concentric loops onto the driving belts disposed longitudinally over the warper's drum, by a device provided with a thread-holder rod.
  • the thread-holder rod is fixed to an arm rotating at a predetermined speed about the axis of the said drum so that each thread will follow a substantially circumferential path.
  • the reels are mounted on a rotary creel, and more threads result contemporary wound up over the warp-transfer belts.
  • More thread-guide rods are provided which rotate about the axis of the drum with a preset angular velocity in synchronism with the creel. Each of said rods guides a corresponding thread, that is, the thread of a corresponding reel.
  • Patent EP 652310 discloses a warper comprising mans able to provide a staggered arrangement of the warper's layers formed one at a time onto the belts of the drum.
  • the point of deposition of each thread onto the belts is made to vary instant by instant and, to this end, provision is made for either moving, during the entire thread-depositing stage, a carriage idly mounted on each belt and interposed between the same belt and the plane of rotation of the thread-guide rods, or moving the belts in a direction opposite to the normal one, that is, close to, instead of away from, the thread-guide rods along the belts.
  • the main object of the present invention is to propose a warper able to operate a staggered arrangement of the warp's layers but having a simpler construction and being more easily operable.
  • a further object of the present invention is to propose an operating method for making stratified warps - wherein the various layers of the warp are properly staggered - which method is of simpler implementation.
  • the present invention makes it possible to make stratified and staggered warps by using relatively simple means which are easily constructed and operated, require a simple maintenance and are cost-effective. Moreover, an apparatus according to the invention ensures a production able to meet the users' requirements without the need of structural modifications of existing warpers, so that the implementation of said apparatus on the latter - when not implemented originally - requires relatively little operational times.
  • a warper comprises a structure with a substantially cylindrical drum (1) on which more belts (2a, 2b) are mounted for carrying or moving the warp.
  • the said belts (2a, 2b) are parallel to each other and to the axis (a-a) of the drum (1), and take up corresponding preset positions along the outer surface thereof.
  • a rotary creel CR
  • reels R
  • F corresponding thread
  • a plurality of thread-guide rods Disposed between the warper and the cree (CR) is a plurality of thread-guide rods, each of which comprises a portion (30) engaged with a motor member (M), and a distal portion (3) intended for operating the proper guide of threads (F).
  • the said portions (30) of thread-guide rods are fixed to a horizontal shaft (4) engaged with the motor (M) .
  • the said shaft (4) is connected to the creel (CR), so that its rotation implies driving the rods (3; 30) and reels (R) into a corresponding rotation about the axis (a-a) of drum (1).
  • a unit is associated with one or more belts in correspondence of the plane of action (RO) of the distal portions (3) of thread-guide rods and comprising, for each of the belts (2a) acted upon by said unit, at least one chute (5) oriented towards the axis (a-a) of the drum (1) on the side facing the thread-guide rods (3; 30), that is, oriented centrifugally with respect to the belts (2a, 2b).
  • RO plane of action
  • the said chute (5) can be placed at a position (H) in which its free end (50) is below the active plane (PA) of belt (2a), that is, outside said plane (RO), and at a position (K) in which its free end (50) is above the active plane (PA) of belt (2a), that is, the chute (5) is at least in part higher than belt (2a) and intercepts the plane of action (RO) of the distal portions (3) of rods (3; 30). Since the belts are ring-like closed, as illustrated in the details of Figs. 3A and 3B, the active plane (PA) of same belts is defined as the surface facing the outside of the drum, that is, the one upon which the threads (F) are to be deposited.
  • the belts acted upon by said units (a) are designated by the reference (2a) and those not acted upon by said units (A) are designated by (2b).
  • each belt (2a) can be associated with two of said units (A), located on opposite sides with respect of the middle longitudinal plane of the belt.
  • each of said chute (5) may be made up of a right-angles body with one free end (50) and the other end engaged with a pneumatic actuator (6). More particularly, said body (5) exhibits a first portion comprising the said free end (50), a second portion (5) orthogonal to the first, and a third portion (52) adjacent to the first and orthogonal to both first and second portions, thereby constituting a transverse appendix of the latter.
  • Such appendix (52) of body (5) is received free of sliding within a rectilinear guide (7) made up of a slot formed within a plate (70), the said guide (7) being oriented towards the axis (a-a) of drum (1) on the side of the thread-guide rods, that is, on the side of creel (CR).
  • the said guide (7) is oriented centrifugally with respect to the corresponding belt (2a) and, reference being made to Figs. 3A, 3B, the guide (7) is disposed at an angle to said active plane (PA), with the its lowermost part being closer to the creel (CR).
  • the transverse appendix (52) of body (5) is connected to the stem (60) of the actuator (6) by a pin (65) able to form a cylindrical hinge with its axis orthogonal to guide (7).
  • the actuator (6) is disposed on the opposite side of body (5) with respect to the plate (70) and is connected to the latter by a pin (76) able to form a corresponding cylindrical hinge parallel to the preceding one (65).
  • the said plate (70) is made solid to support (20) over which the belt (2a) develops by means of an intermediate plate (8).
  • Said intermediate plate (8) is fixed to said support (20), and the plate (70) is in turn fixed to plate (8) by means of a spacer (78), so that a free space results between the two plates (70, 8) for receiving the portion (51) of body (5).
  • the latter therefore, results substantially between the plate (70) which supports the actuator (6), and the plate (8) fixed to the support (20) of belt (2a).
  • the plate (8) is provided, in correspondence of an active edge facing the outside of drum (1), with a pin (80) centrifugally oriented with respect to the surface thereof, that is, oriented outwardly. The function of this part is described below.
  • the chutes (5) are within the respective rest positions (H) as indicated in Figs. 2A and 3A.
  • the chutes (5) are disposed in the respective positions (K) as shown in Figs. 2B, 3B, 4A and 4B.
  • the first thread slides towards and up to the pin (80) where it stops, the second thread slides towards the first one until it comes close thereto, the third thread slides close to the second one, and so on.
  • the pin (80) is positioned between the plane (RO), on which the threads are drawn along by the guide portion (3) of the rods (3, 30), and the axis of motor-driven rollers (21) on which the belts wind up on the side of rods (3, 30).
  • the chutes (5) are retracted by the relevant actuators (6), that is, they are brought back to the respective starting positions (H) .
  • the portion of the warp in the course of formation is the first one formed on the chutes (5), then it sets itself directly onto the plane (PA) of belts (2a, 2b). If such portion is one subsequent to the first, then it sets itself partly onto said plane (PA) and partly onto the threads of the preceding portions.
  • the first portion (P1) of the warp will be laid down integrally onto the plane (PA) when the chutes (5) are brought back to the respective starting positions (H).
  • the second portion (P2) of the warp will be laid down partly onto the plane (PA), by virtue of the advancement "p" of the belts in the warp-grow direction (C), and partly onto the threads of the first portion (P1).
  • the third portion (P3) will be laid down onto the plane (PA) and partly onto the threads of the second portion (P2).
  • the fourth portion (P4) will be laid down partly onto the plane (PA) and partly onto the threads of the third portion (P3), and so on, so that the warp grows in a stratified fashion, with the layers (W1, W2) being made up of different portions of warp.
  • each thread unwinds from a corresponding reel disposed on a fixed creel or even on a creel of rotary type but being disposed at a fixed position, that is, not associated with the rotation of the rod which guides the thread each time under treatment.
  • the positioning of the chutes (5) to the respective rest (H) and operating (K) positions and the driving of belts (2a, 2b) may be operated according to a sequence taking into account the rotational velocity of the thread-guide rods (3, 30) about the axis of drum (1).
  • the chutes (5) can be driven in cascade, so that, with reference to Fig. 5, because of the clockwise rotation of rods (3, 30), this drive will interest the units A1, A2, ..., A6, in this order, instead of all the units simultaneously.
  • the same cascade drive will also advantageously affect the belts (2a, 2b) as far as the said advancement "p" in the warp-grow direction (C) is concerned.
  • the driving into motion of chutes (5) may be twofold, in the sense that each chute (5) can be subjected, besides the displacement along the respective guide (7), also to a rotation to and from the plane (PA) of the respective belt (2a).
  • the portion of the chutes (5) comprising the free end (50) can be associated with an actuator (500) mounted on the portion (51) which, on the opposite side, is solid to the guided portion (52): the portion of the chutes (5) associated with the actuator (500) being also connected to the portion (51) that supports the latter, by means of an elastic body (53) which keeps it normally lifted (as in Fig. 6A).
  • the portion comprising the free end (50) is lifted, as shown in Fig. 6, because of the action of the elastic body (53).
  • the actuator (500) drives said portion into rotation (as in Fig. 6B) towards the plane (PA) of the respective belt (2a) by winning the resistance of the elastic body (53).
  • the actuator (500) is deactivated and the said portion of chute (5) goes up again by the action exerted by the elastic body (500).
  • a stratified warp is made by forming a plurality of warp's portions (P1, .., P4), each warp's portion being formed on more surfaces (5) able to be positioned between the warp-transfer belts and the portion of guide (3) of the thread-guide rods (3; 30), and by transferring each warp's portion thus formed either onto the underlying belts (2a, 2b) or onto the underlying portions already formed and transferred, after having translated the belts (2a, 2b) by a step of preset amplitude in the warp grow direction (C).
  • the said surfaces (5) are delimited by metal filiform structures, for example, mounted in correspondence of the respective belts (2a) and associated with corresponding rotary actuators (501) able to positioning them in a condition (H') in which they result outside the action plane (RO) of the distal portions (3) of rods (3; 30) and, respectively, in a condition (K') in which the same surfaces (5) intercept the said plane (RO), that is, they result between the threads (F) guiding portion (3) exhibited by said thread-guide rods (3; 30) and the active plane (PA) of belts (2a).
  • H' in which they result outside the action plane (RO) of the distal portions (3) of rods (3; 30)
  • K' in which the same surfaces (5) intercept the said plane (RO), that is, they result between the threads (F) guiding portion (3) exhibited by said thread-guide rods (3; 30) and the active plane (PA) of belts (2a).
  • the said structures may be in the form of a mixtilinear quadrilateral and connected to the respective actuators (501) by means of corresponding small connection arms, the actuators being mounted on brackets (503) cantilivered mounted on supports (20) of belts (2a).
  • a warper comprises a structure with a substantially cylindrical drum (1) on which more belts (2a, 2b) intended for transferring or moving the warp.
  • the said belts are parallel to each other and to the axis (a-a) of drum (1) and take up corresponding preset positions along the outer surface thereof.
  • a rotary creel CR
  • reels R
  • F corresponding thread
  • a plurality of thread-guide rods Disposed between the warper's drum and said creel is a plurality of thread-guide rods, each of which comprising a portion (30) associated with a motor member (M), and a distal portion (30) intended for carrying out the proper guide of the threads (F).
  • the said portions (30) of the thread-guide rods are fixed to a horizontal shaft (4) associated with the motor (M).
  • the said shaft (4) is connected to the creel (CR), so that its rotation implies the rotation of rods (3; 30) and of reels (R) about the axis (a-a) of the drum (1).
  • the said rotation of rods (3; 30) there is obtained the deposition of threads (F) onto the belts (2a; 2b) as described later on.
  • the warper is provided with a cross support (100), disposed centrally on the axis (a-a) of drum (1) in a plane lying between the action plane (RO) of the distal portions (3) of thread-guide rods and the front of drum (1) which results facing the creel (CR) (so that the thread-guide rods 3; 30 result between the support 100 and the creel CR): each arm (101) of the cross (100) supporting a corresponding linear actuator (102) - for example of pneumatic type - whose stem (103), when withdrawn, intercepts and passes the said plane (RO) thereby resulting at a preset distance from a belt (2a; 2b) and oriented centrifugally with respect to the same belt.
  • a cross support (100) disposed centrally on the axis (a-a) of drum (1) in a plane lying between the action plane (RO) of the distal portions (3) of thread-guide rods and the front of drum (1) which results facing the creel (CR) (so that the thread-guide
  • the arms of support (100) may be in any number, for example, two or three, instead of four. In any case, it is preferable that the arms of support (100) be angularly equidistant to each other.
  • the support (100) is fixed to a shaft (104) whose axis coincides with that (a-a) of drum (1) and whose rotation about such axis is ensured by an electric motor (105) connected thereto via a driving belt (106), so that the rotation of the shaft (104), driven by the motor (105), determines the corresponding rotation of the support (100), with the respective arms (101), about the axis (a-a).
  • the shaft (104) of support (100) is hollow, with conductors (107) passing therethrough and intended to operate a solenoid valve (108) by which the actuators (102) mounted on the arms of support (100) are activated, respectively deactivated: the said conductors being connected, on the opposite side, to a programmable electronic control unit (109) (known per se and not described in greater detail).
  • a solenoid valve (108) by which the actuators (102) mounted on the arms of support (100) are activated, respectively deactivated: the said conductors being connected, on the opposite side, to a programmable electronic control unit (109) (known per se and not described in greater detail).
  • the support (100) is disposed, on command of motor (105), so that one of its arms (101) results in correspondence of a belt (2a, 2b), and the respective actuator (102) is activated so that the relevant stem (103) is drawn out by causing it to intercept and pass the said plane (RO) as shown in Figs. 10 and 11 (position K in Fig. 9B).
  • the other actuators (101) mounted on the support (100) are deactivated, so that the respective stems (103) are retracted (position H in Fig. 9B) and, accordingly, do not intercept, nor pass the plane (RO).
  • the threads (F) being guided by the portions (3) of the thread-guide rods (30) driven into rotation about the axis (a-a) of drum (1) by the motor (M), lay down onto the surface of the stem (3) of the activated actuator (101), by virtue of the tension to which they are subjected and of the inclination of the same stem (103), they translate by moving away from the plane (RO) and set themselves close to each other as shown in Fig. 11.
  • the support (100) When the rods (3; 30) reach a predetermined number of revolutions about the axis (a-a), the support (100) is rotated (in the same direction of rotation of the thread-guide rods) and the stem of the actuator (103) is retracted.
  • the support 100 is rotated through 90° in the direction of arrow Z, so that the actuator 102a, on which the threads F were laid down, moves on to take the place of actuator 12b, which takes up the place of actuator 102c which, in turn, takes the place of actuator 102d which, finally, takes the place of the actuator 102a.
  • the first portion (P1) of the warp will be laid down integrally onto the plane (PA) when the stem of the active actuator is retracted.
  • the second portion (P2) of the warp will be laid down partly onto the plane (PA), by virtue of the advancement "p" of the belts in the warp-grow direction (C), and partly onto the threads of the first portion (P1).
  • the third portion (P3) will be laid down onto the plane (PA) and partly onto the threads of the second portion (P2).
  • the fourth portion (P4) will be laid down partly onto the plane (PA) and partly onto the threads of the third portion (P3), and so on, so that the warp grows in a stratified fashion, with the layers (W1, W2) being made up of different portions of warp.
  • each thread unwinds from a corresponding reel disposed on a fixed creel or even on a creel of rotary type but being disposed at a fixed position, that is, not associated with the rotation of the rod which guides the thread each time under treatment.
  • the active actuator (102a) that is, the actuator with the stem (103) being withdrawn, is in the middle plane (MC) of an underlying belt (2a).
  • the support (100) may be positioned, upon the formation of warp's portions, in a different manner, that is, in such a way that the active actuator (102a) will result at a preset distance from the said plane (MC): for example, such as represented in Figs. 12B and 12C.
  • To these various positions is made to correspond a different tension of the threads which is then transferred onto the warp's belts: the tension being greater the higher the distance from the active actuator from the plane MC (higher tension according to diagram of Fig.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
EP20020425666 2001-11-06 2002-10-31 Schärmaschine und Schärverfahren Expired - Lifetime EP1312707B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT2001FI000206A ITFI20010206A1 (it) 2001-11-06 2001-11-06 Orditoio e metodo di orditura
ITFI20010206 2001-11-06
ITFI20020175 ITFI20020175A1 (it) 2002-09-23 2002-09-23 Orditoio
ITFI20020175 2002-09-23

Publications (3)

Publication Number Publication Date
EP1312707A2 true EP1312707A2 (de) 2003-05-21
EP1312707A3 EP1312707A3 (de) 2003-12-17
EP1312707B1 EP1312707B1 (de) 2007-08-29

Family

ID=26332715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020425666 Expired - Lifetime EP1312707B1 (de) 2001-11-06 2002-10-31 Schärmaschine und Schärverfahren

Country Status (2)

Country Link
EP (1) EP1312707B1 (de)
DE (1) DE60222077T2 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652310A1 (de) * 1993-11-09 1995-05-10 Suzuki Warper Ltd. Elektronisch gesteuerte Musterzettelmaschine
US5603146A (en) * 1994-12-23 1997-02-18 Karl Mayer Textilmaschinenfabrik Gmbh Arrangement and process for the production of short warps
EP1231306A2 (de) * 2001-01-09 2002-08-14 Age s.n.c. di Vieri A. & C. Verbesserte Schärmaschine und Schärverfahren
DE10158760C1 (de) * 2001-11-29 2003-07-10 Mayer Textilmaschf Verfahren zum Erzeugen einer Musterkette und Musterkettenschärmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652310A1 (de) * 1993-11-09 1995-05-10 Suzuki Warper Ltd. Elektronisch gesteuerte Musterzettelmaschine
US5603146A (en) * 1994-12-23 1997-02-18 Karl Mayer Textilmaschinenfabrik Gmbh Arrangement and process for the production of short warps
EP1231306A2 (de) * 2001-01-09 2002-08-14 Age s.n.c. di Vieri A. & C. Verbesserte Schärmaschine und Schärverfahren
DE10158760C1 (de) * 2001-11-29 2003-07-10 Mayer Textilmaschf Verfahren zum Erzeugen einer Musterkette und Musterkettenschärmaschine

Also Published As

Publication number Publication date
EP1312707A3 (de) 2003-12-17
EP1312707B1 (de) 2007-08-29
DE60222077D1 (de) 2007-10-11
DE60222077T2 (de) 2008-05-21

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