EP0946801B1 - Kanteneinlegeapparat für eine webmaschine - Google Patents

Kanteneinlegeapparat für eine webmaschine Download PDF

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Publication number
EP0946801B1
EP0946801B1 EP97954414A EP97954414A EP0946801B1 EP 0946801 B1 EP0946801 B1 EP 0946801B1 EP 97954414 A EP97954414 A EP 97954414A EP 97954414 A EP97954414 A EP 97954414A EP 0946801 B1 EP0946801 B1 EP 0946801B1
Authority
EP
European Patent Office
Prior art keywords
selvedge
drive
control unit
drive motor
drive shaft
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
EP97954414A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0946801A1 (de
Inventor
Eddy Verclyte
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.)
Picanol NV
Original Assignee
Picanol NV
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 Picanol NV filed Critical Picanol NV
Publication of EP0946801A1 publication Critical patent/EP0946801A1/de
Application granted granted Critical
Publication of EP0946801B1 publication Critical patent/EP0946801B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/40—Forming selvedges
    • D03D47/48—Forming selvedges by inserting cut end of weft in next shed, e.g. by tucking, by blowing

Definitions

  • the invention relates to an edge insertion apparatus for a Loom with at least one insert arm and with at least one a thread clamp which drives a weft thread are deliverable that contain a common drive shaft.
  • An edge loading apparatus is also known (U.S. Patent 5,158 119), an insert arm, a thread clamp and a thread scissors has, each assigned its own drive motors are.
  • the insertion arm is axial by means of a motor movable and rotatable by means of another motor.
  • the Thread clamp and thread scissors are each using their own Motors can be moved axially. Operation of this edging machine takes place by means of a microprocessor, which the individual Controls motors. This microprocessor also gets Information about the weaving cycle of a weaving machine.
  • the insert arm are also assigned position sensors that immediately Malfunctions determine, after which the microprocessor Motors stops to start mechanically between the Insert arm and / or the thread clamp and the scissors and the To prevent reed.
  • the invention has for its object an edge insertion apparatus of the type mentioned in such a way that a improved edging is obtained.
  • the invention is based on the knowledge that the main shaft a weaving machine is not moving at a constant speed rotates. This is caused by the fact that this main shaft machine elements, such as weaving shop and specialized educational resources, there and back reciprocated.
  • the changing speed also depends on the weave pattern of the warp threads according to which the Technical training resources for successive weaving subjects increased and lowered to a certain number of moved up and a certain number of down moving warp threads each form a shed.
  • the drive motor of the edge loading apparatus by means of operates its own programmable controller, can change its position and especially the speed of the Inlay arms are chosen so that the ends of the weft threads always be inserted in the same way.
  • control Means containing the speed of the drive motor when inserting weft ends in the control control callable programs. This makes it possible the insertion arm between the warp threads as long as possible leave, which is an advantage for good edge formation.
  • Control callable programs for operating the drive motor are filed in different ways matched by wefts and / or different weave patterns are. This makes it possible in a simple manner Operating mode of the drive motor and thus in particular the Position and speed of the insertion arm at the respective processed type of weft threads and / or to the or adjust the binding pattern used in each case.
  • control includes means that track the movement a reed with the course of the movements of the insertion arm and the thread clamp and compare if there is a risk of collisions change the operation of the drive motor to To prevent collisions. In this way, malfunctions or avoid incorrect settings due to whose the reed against the insertion arm or the thread clamp could trigger what damage to the reed and / or of the insertion arm or the thread clamp.
  • the weaving machine part shown in Fig. 1 comprises two side frames 1 and 2, by means of a cross section 3 with each other are connected, a sley 4 with a reed 5, one Drive motor 6 by means of a transmission device 7 consisting of two pulleys and a belt with a drive 9 for the main shaft 8 driving the sley 4 Loom is connected to a weft cutter 10, a plurality of edge inserting devices 11, 12, 13 and a control 14.
  • the weft cutter 10 includes one Weft scissors 15 having shear blades and a drive unit 16.
  • the edge inserting device 11 contains one Thread clamp 17 and an insertion arm 18.
  • the edge insertion device 12 contains two thread clamps 17, two insertion arms 18 and one arranged between the two thread clamps 17, with Weft scissors provided with shear blades 19.
  • the edge loading apparatus 13 contains a thread clamp 17, an insertion arm 18 and a weft scissors 19 provided with shear blades.
  • an encoder disk on the main shaft 8 of the weaving machine 20 arranged to which a sensor 21 is assigned, the signals to the controller 14, the angular position of the encoder disc 20 and thus correspond to the main shaft 8. Furthermore are two fabrics 22 and 23 with their respective product edges 24 and 25 and warp threads 26 are shown.
  • the side frame 1 or 2 facing side edges of the fabrics 22, 23 is a spreader 27 with a proximity sensor 28 assigned.
  • the proximity sensors 28 speak to the reed 5 on and generate a corresponding signal.
  • the embodiment shows an air jet loom, the two Main blowing nozzles 29, which is mounted on the sley 4 are.
  • the cutting device 10, the edge inserting apparatus 11, 12, 13 and the spreader 27 are on the cross section 3 arranged.
  • the Insertion arm 18 is provided with a clamping piece 30, which means a screw 32 attached to a drive rod 31 is.
  • the insertion arm 18 is in by means of the drive rod 31 whose axial direction is movable and can be moved in the R direction Turn the drive rod 31 to be rotated.
  • the thread clamp 17 is by means of a drive rod 33 in the axial Adjustable direction. It is also openable with one Tappet 34 provided with a driver 35 of the clamping piece 30 can be actuated.
  • the thread cutter 19 is on a drive rod 36 mounted and with this in their axial Adjustable direction. When moving towards that Webblatt 5 out this movement is only schematic by means of indicated means 37 in a cutting movement of the shear blades the thread scissors 19 implemented.
  • the means to open the Thread clamp 17 and for operating the thread scissors 19 known from the prior art and therefore not closer explained.
  • the edge insertion apparatus 13 is by means of an intermediate piece 38 attached to the cross section 3.
  • the drive rods 31, 33, 36 are each in one Slide bearing shown, that in the front part 39 of the housing of the edge insertion apparatus 13 is mounted, guided in such a way that they can be moved in the axial direction.
  • the drive rods 33 and 36 have axially extending Flattenings that correspond to the shape of the plain bearings. This prevents the drive rods 33, 36 can twist.
  • the slide bearing for the drive rod 31 has a cylindrical inner contour to twist it Allow drive rod 31.
  • the edge inserting apparatus contains 13 a common drive shaft 40 for driving the Drive rod 33 of the thread clamp 17, for the drive rod 31 of the insertion arm 18 and for the drive rod 36 of the thread scissors 19.
  • the drive shaft 40 drives on it in axial Distance from each other non-rotatably arranged cam disks 41, 42 on, which have cam profiles 43, 44 and 45, 46.
  • the edging machine 13 also includes an axis 47 on which three levers 48 are rotatably mounted. Have the levers 48 each a pin 49 and a fork-shaped end 50. The Pin 49 of the first lever 48 is guided in the cam profile 43. The fork-shaped end 50 of this first lever 48 engages between two radial shoulders 36A of the drive rod 36.
  • the lever 48 By levering the drive shaft 40, the lever 48 by means of the cam 49 rotated about the axis 47, whereby the Drive rod 36 by means of between the shoulders 36A engaging fork-shaped end 50 is axially displaced.
  • the Drive rods 31 and 33 are used in a corresponding manner Rotate the drive shaft 40 axially by means of the lever 48 adjusted, each a pin 49 and a fork-shaped Own late 50s.
  • the drive rod 31 is with two radial Shoulders 31A and the drive rod 33 with two shoulders 33A, between which the fork-shaped ends 50 the associated lever 48 engage.
  • the drive rod 31 is provided with a lever 51 which in axial direction of the drive rod 31 by means of a holder 52 is fixed.
  • the drive rod 31 can be within the lever 51 are moved axially, but there is in the circumferential direction a non-rotatable connection.
  • a further lever 53 is arranged which around an axis, not shown, is rotatable and one Has pin 54, which in the cam profile 46 of the cam 42 engages.
  • the lever 53 and the lever 51 of the drive rod 31 are by means of a Connecting rod 55 connected to each other, each via Ball joints are hinged to the levers 51 and 53.
  • a movement of the lever 53 in the direction V is therefore in a rotational movement the drive rod 31 in the direction of rotation R (Fig. 2) implemented.
  • the drive shaft 40 of the edge insertion apparatus 13 is by means of Bearings 56, 57 stored in the housing 58.
  • the bearing 56 is by means of a fixed on the drive shaft 40 screwed nut 59.
  • the Bearing 56 is in the housing 58 by means of a fastening part 60 fixed in position.
  • the bearing 57 is for example Press fit held in the housing 58.
  • the edge insertion apparatus 13 contains a drive motor 61, which is controlled by the controller 14.
  • the motor shaft 62 is supported by bearings 63 and 64.
  • the bearing 63 is in the motor housing 65, while the bearing 64 in a Partition 66 is arranged.
  • the motor housing 65 is by means of Screws 67 attached to the housing 58.
  • the motor shaft 62 is connected to the drive shaft by means of an elastic coupling 68 40 coupled. This elastic coupling 68 equals misalignment between motor shaft 62 and drive shaft 40, but it does not allow any relative movements in the circumferential direction to.
  • the motor shaft 62 is a rotor 71 of the electric motor associated with a in the motor housing 65 arranged stator 72 of the drive motor cooperates.
  • the Motor shaft 62 of drive motor 61 and drive shaft 40 of the edge insertion apparatus 13 not in an axial extension arranged one behind the other.
  • they are Transmission elements connected together.
  • the motor shaft and the drive shaft 40 can be parallel or for example be arranged at an angle of 90 ° to each other.
  • a gear transmission or a belt transmission be provided, while in the second case a Bevel gear transmission device is provided.
  • the embodiment 4 are the drive motor 61 and the edge inserting device 13 as a structural unit executed with only one housing.
  • the embodiment 3 corresponding elements are given the same reference numerals provided and not mentioned here.
  • the rotor 71 is arranged on the drive shaft 40, which is thus to the motor shaft becomes.
  • the associated stator 72 is in the housing 58 of the Edge insertion apparatus 13 housed.
  • This drive motor too 61 is controlled by the controller 14.
  • the bearings are 56, 57 for the drive shaft 40, which is also a motor shaft, each arranged in a flange 73, which with screws 74 is attached to the housing 58.
  • the embodiment according to Fig. 4 has the advantage that the unit compared to 3 is more compact and less Space required within the weaving machine.
  • the sensor 21 assigned to the encoder disk 20 sends from dependent on the angular position of the main shaft 8 of the weaving machine Signals to the controller 14, which are also for the position of the sley 4 and for the positions of the not shown Shed forming means and thus that formed from the warp threads 26 Weaving fans is representative.
  • the position of the drive shaft 40 of the edge insertion apparatus 13 is by means of the signals the sensor 70, which works together with the encoder disk 69, entered into the controller 14.
  • the control unit 14 controls the speed controllable drive motor 61 of the edge loading apparatus 13.
  • the speed control can be done in a known manner by means of a frequency control or a phase control be performed.
  • the control unit 14 can use the signals from sensor 70 for feedback.
  • Curves 76 and 76A chosen so that the insertion arm 18 none large and no strongly changing forces on the Wields weft.
  • Warp threads 26 in the upper shed become curves 76 and 76A
  • the insertion arm 18 longer remains between the warp thread sheets than with bindings a plurality of warp threads 26 in the upper compartment.
  • the starting position O coincides with the position at that of the edge insertion apparatus 13 or at least its insertion arm 18 has not yet been delivered to the weft.
  • the main shaft 8 of the weaving machine is precisely determined Reference position, for example 100 ° behind the Stop position of the reed 5 is.
  • the speed of the drive motor 61 is controlled so that the speed at least the insertion arm 18 during insertion of one Weft has a predetermined course.
  • the speed of the drive motor 61 is below Taking into account the mechanical transmission between the Drive shaft 40 and the drive rod 31 according to a predetermined History controlled. Such a course is shown in Fig. 5 shown with curve 76.
  • the controller 14 is for any type of weft to be inserted is a suitable one History stored in a memory. From the starting position O the speed of the drive motor 61 according to a program called from the controller 14 is controlled regardless of the speed of the main shaft 8 of the Loom. The signals from sensor 70 are used to check whether whether the drive motor 61 is actually the required Speed curve is controlled according to curve 76. If necessary, corrections are made to the Adapt drive motor 61 to this course.
  • This control of the speed curve takes place at least during the period of time in which a weft end of the insert arm 18 is inserted into a subsequent shed, preferably however, during the entire period of time, in the edge loading machine 13 acts on the weft.
  • This Control takes place between the initial position O and an end position PE of the drive shaft 40 of the edge inserting apparatus 13, which is, for example, 120 ° to 180 ° later and in which the edge insertion device 13 no longer on the Weft acts.
  • the course 76 can be selected that taking into account the speed of the insertion arm 18 approximate the mechanical transmission conditions is constant or may increase slightly. So that will the advantage achieved that the weft end in the hook of Insertion arms 18 remain tensioned, so that the possibility is low is that the insertion arm 18 loses the weft end.
  • the process becomes like this predetermined that the drive shaft 40 again in the next starting position O is when the main shaft 8 is in the next reference position.
  • the expected Time at which the main shaft 8 reaches the reference position is achieved is dependent on the controller 14 taking into account the signals from the sensor 21 other influences determined, for example, taking into account the binding pattern stored in the control unit 14, which the weaving machine works on.
  • the speed the drive motor 61 is controlled so that the drive shaft 40 at the predetermined time is in the initial position O.
  • the speed of the drive motor 61 controlled so that the speed between the previous end position PE and the subsequent starting position O is almost constant.
  • the Speed in the previous end position PE and the subsequent starting position O is indicated by the in the Control 14 stored history determined.
  • the course after curve 77 must follow the curves of curves 76 and 76A connect continuously.
  • the uneven course of the speed of the main shaft 8, which is represented by curve 75, has no influence as long as the speed curve of the drive shaft 40 the edge insertion apparatus 13 cooperates with the weft end.
  • the drive shaft 40 is according to a predetermined Speed curve controlled, the one in the controller 14 is stored.
  • the influence of the uneven speed curve the main shaft 8 of the loom is from the controller 14 according to curves 77, 77A by corresponding Control of the drive motor 61 balanced during the Edge inserting device 13 does not cooperate with a weft end.
  • the occurring speed and their The course has no influence on the edge formation.
  • the Edge inserting device 13 when inserting a weft end completely independent of the main shaft 8 of the weaving machine is controlled, there is a risk that parts of the edge insertion apparatus 13, for example the thread clamp 17, the insertion arm 18 or the thread scissors 19, with the reed 5 of the Loom can come into contact. This could happen if the synchronization deviation between the drive shaft 40 of the edge insertion apparatus 13 and the Main shaft 8 of the loom over a certain limit goes out.
  • the Control 14 means depending on the position the main shaft 8 determined position of the reed 5 control the drive motor 61 of the edge inserting apparatus 13 in such a way that is prevented that the thread clamp 17, the insertion arm 18 or the thread scissors 19 with the reed 5 of Loom can come into contact.
  • the edge insertion apparatus 13 according to one in the Control 14 called program to control that the Insertion arm 18 is located between the warp threads as long as possible, which is advantageous for edge formation without in the event of synchronization errors, the risk of collisions given is.
  • control 14 are for this purpose via a keyboard or in others positions of the main shaft 8 and the electronically Input shaft 40 entered, where the above Elements of the edging apparatus 13 with the reed 5 in could come into contact. If the controller 14 at a Controlling the drive motor 61 according to a course of the speed after curves 76, 76A of FIG. 5, that there is a risk of contact, i.e. the possible Positions of main shaft 8 and drive shaft 40 within of the limit values entered into the controller 14 the drive motor 61 is driven differently, so that the mutual Desynchronization is canceled.
  • the position of the Reed 5 not detected with the help of sensor 21, but with one or more proximity sensors 28.
  • everyone Proximity sensor 28 sends a signal to controller 14, which indicates the position of the reed 5.
  • This proximity sensor or these proximity sensors 28 can also be used to determine a reference position of the reed 5, for example the stop position.
  • the edge insertion apparatus 11 which has only one thread clamp 17 and has an insertion arm 18 can correspond to that explained Edge insertion apparatus 13 are formed. It can however, the drive rod 36 with the associated lever 48 and the cam profile 43 is omitted.
  • the edging machine 12, the two thread clamps 17, two insertion arms 18 and one Thread scissors 19 can also be according to the explained Edge insertion apparatus 13 can be executed.
  • a second drive rod 33 with an associated one Lever 48 and an associated cam profile 44 and one second drive rod 31 with associated levers 51, 53 and Holder 52 and connecting rod 55 and cam profile 46 become.
  • the control and the function of the edge inserting devices 11 and 12 then corresponds to that of the edge insertion apparatus 13th
  • the invention also provides the Advantage that the drive motor 61 of this edging apparatus 12 so when finding a faulty weft is controlled that the thread scissors 19 of this edge loading apparatus 12 does not cut the weft in question.
  • This can happen, for example, in that the drive motor 61 of the edge inserting device 12 is not excited, when a weft detector 75 has an incorrectly entered one Detects weft and reports the control 14.
  • There a faulty weft always before striking this Weft thread is determined, and since the edge loading apparatus 12 mostly only after striking this weft acts, cutting this weft can be easy thereby preventing the drive motor 61 from being timely is no longer driven.
  • the end of the flawed registered weft thread, which is behind the selvedge 12 may then be according to the method described in U.S. Patent 4 898,214 disclosed methods are removed.
  • the curves 76, 76A of the speed of the main shaft 40 can be input into the controller 14 via an input device (not shown) or in any other electronic manner. It is also possible to enter the start and end position in the controller 14 via a corresponding input unit. The entered values can of course be changed at any time in order to achieve an optimal insertion of weft ends.
  • the invention is of course not limited to the exemplary embodiments illustrated and explained on the basis of the drawings. Other shapes and dimensions are easily possible. The scope of protection is determined only by the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP97954414A 1996-12-20 1997-12-17 Kanteneinlegeapparat für eine webmaschine Expired - Lifetime EP0946801B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9601072 1996-12-20
BE9601072A BE1010818A3 (nl) 1996-12-20 1996-12-20 Kanteninlegapparaat voor een weefmachine.
PCT/EP1997/007085 WO1998028474A1 (de) 1996-12-20 1997-12-17 Kanteneinlegeapparat für eine webmaschine

Publications (2)

Publication Number Publication Date
EP0946801A1 EP0946801A1 (de) 1999-10-06
EP0946801B1 true EP0946801B1 (de) 2002-06-12

Family

ID=3890162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97954414A Expired - Lifetime EP0946801B1 (de) 1996-12-20 1997-12-17 Kanteneinlegeapparat für eine webmaschine

Country Status (6)

Country Link
US (1) US6186190B1 (ja)
EP (1) EP0946801B1 (ja)
JP (1) JP2001506715A (ja)
BE (1) BE1010818A3 (ja)
DE (1) DE59707530D1 (ja)
WO (1) WO1998028474A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10318818A1 (de) * 2003-04-17 2004-11-04 Picanol N.V. Verfahren zum Betreiben einer Webmaschine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001234451A (ja) * 2000-02-22 2001-08-31 Tsudakoma Corp 織機における耳形成装置の駆動方法及び装置
DE10061717B4 (de) * 2000-12-12 2006-01-26 Lindauer Dornier Gmbh Antriebsanordnung für eine Webmaschine und Fachbildemaschine
EP1620588B2 (de) 2003-04-17 2016-10-05 Picanol Verfahren zum betreiben einer webmaschine
DE502006007250D1 (de) * 2005-02-23 2010-08-05 Itema Switzerland Ltd Leistenleger für Schussfäden
BE1022146B1 (nl) 2014-06-13 2016-02-19 Picanol Zelfkantvormingsinrichting voor een inslagdraad
IT201900007794A1 (it) * 2019-05-31 2020-12-01 Manea Textile S R L Cimossatrice meccanica motorizzata
WO2022096922A1 (en) * 2020-11-09 2022-05-12 Manea Textile S.R.L. Motor-driven mechanical selvedge machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1000903A4 (nl) * 1987-09-02 1989-05-09 Picanol Nv Kanteninlagapparaat voor weefmachines.
BE1001310A3 (nl) * 1987-12-22 1989-09-19 Picanol Nv Inrichting voor het vormen van een zelfkant aan een weefsel bij weefmachines.
BE1001855A3 (nl) * 1988-06-29 1990-03-20 Picanol Nv Pneumatische draadklem voor een kanteninlegapparaat bij weefmachines.
IT1242989B (it) * 1990-08-29 1994-05-23 Vamatex Spa Dispositivo perfezionato per la formazione della cimossa in telai senza navette
IT1265030B1 (it) * 1993-05-28 1996-10-28 Nuovo Pignone Spa Sistema di comando perfezionato per i dispositivi di formazione delle cimosse rientrate in un telaio tessile, in particolare in un telaio
DE19548846C1 (de) * 1995-12-27 1996-10-10 Dornier Gmbh Lindauer Verfahren und Vorrichtung zum Einlegen eines Schußfadens
BE1010014A3 (nl) * 1996-02-09 1997-11-04 Picanol Nv Kanteninrichting voor een weefmachine.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10318818A1 (de) * 2003-04-17 2004-11-04 Picanol N.V. Verfahren zum Betreiben einer Webmaschine
DE10318818B4 (de) * 2003-04-17 2011-12-22 Picanol N.V. Verfahren zum Betreiben einer Webmaschine, sowie eine Webmaschine

Also Published As

Publication number Publication date
EP0946801A1 (de) 1999-10-06
BE1010818A3 (nl) 1999-02-02
WO1998028474A1 (de) 1998-07-02
JP2001506715A (ja) 2001-05-22
US6186190B1 (en) 2001-02-13
DE59707530D1 (de) 2002-07-18

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