WO2016149843A1 - Dispositif de transport pour appareil de contrôle textile - Google Patents

Dispositif de transport pour appareil de contrôle textile Download PDF

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Publication number
WO2016149843A1
WO2016149843A1 PCT/CH2016/000037 CH2016000037W WO2016149843A1 WO 2016149843 A1 WO2016149843 A1 WO 2016149843A1 CH 2016000037 W CH2016000037 W CH 2016000037W WO 2016149843 A1 WO2016149843 A1 WO 2016149843A1
Authority
WO
WIPO (PCT)
Prior art keywords
conveyor
conveyor rollers
motor
conveying device
rollers
Prior art date
Application number
PCT/CH2016/000037
Other languages
German (de)
English (en)
Inventor
Patrik Scheiber
Martin Kuster
Jürg Fenner
Beat KOLLER
Loris De Vries
Original Assignee
Uster Technologies Ag
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 Uster Technologies Ag filed Critical Uster Technologies Ag
Publication of WO2016149843A1 publication Critical patent/WO2016149843A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/36—Textiles
    • G01N33/365—Filiform textiles, e.g. yarns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/32—Supporting or driving arrangements for forwarding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention is in the field of textile quality testing and relates to a conveying device for a tester for testing elongated textile test material such as yarn, roving or sliver, according to the preamble of the first
  • test device according to the preamble of another claim.
  • the test device according to the invention is designed as an independent device, which is not integrated into a production process, and thus can be used in off-line operation, for example in the textile laboratory.
  • test material to be tested is withdrawn from a yarn package in a single test run and passes through at least one sensor in the testing device in order to measure the parameters to be determined.
  • the tester may have a plurality of sensors arranged in succession in the direction of the test material. The investigation is basically a continuous process. Depending on the degree of automation, the mechanical detection and introduction of the test material in the tester is realized in the same.
  • the tester has a conveyor for the test material.
  • the conveyor device is usually designed as a roller supply unit with a pair of cooperating conveyor rollers, at least one of which is drivable for rotation.
  • Such a conveyor is described in US 4,846,388.
  • a first of the two conveyor rollers is about a round belt of a motor for rotation driven.
  • a second of the two conveyor rollers is drive-less. She is one
  • Swivel axis which is perpendicular to the axis of the second conveyor roller, pivotally mounted and is pressed by a prestressed tension spring against the first conveyor roller.
  • the second conveyor roller is driven by frictional contact with the first conveyor roller.
  • DE-1 5'38'142 AI discloses a device for testing a fiber slip of roving.
  • the apparatus includes two conveyors for the roving.
  • Each of the conveyors includes a drive roller driven by a motor and a top roller pressed against the drive roller.
  • the drive roller is connected to the motor via a toothed drive belt.
  • the top roller is going through
  • US-5,050,437 A relates to a tensile strength measuring device for yarn.
  • the Mcssgrein contains two pairs of rollers for conveying the yarn. Each pair of rollers includes a transport roller and a pressure roller.
  • the transport roller is from a
  • US Pat. No. 4,862,741 A has recognized that the drive causes only one of the two conveyor rollers shearing forces in the test material and thus undesirably deforms the test material.
  • the positive drive of both winningrollcn is achieved as follows.
  • the conveyor rollers formed from a hard rubber-like material are mounted on the front side of two motor-driven shafts.
  • the shafts are stored in a bearing block and each carry a gear.
  • the two gears are on the one hand in mutual engagement and on the other hand connected to a toothed pulley, which has a toothed belt with a
  • the conveyor rollers wegschwenkbar form each other to facilitate the automatic insertion of the test material between the transport rollers and Dick enunter Kunststoffe different test items compensate.
  • To this Purpose may be a conveyor roller from the other by means of an adjusting
  • US 4,862,741 A proposes a slow reciprocation of the conveyor rollers and the drive in the direction of the longitudinal axes of the conveyor rollers. As a result, the test material is fully vibrated relative to the conveyor rollers. As a result, the conveyor rollers are worn evenly.
  • Intellectual property has a conveying device in which the two conveyor rollers
  • EP-0'017'096 AI discloses a device for testing the impact performance of a test track.
  • the device includes a pair of juxtaposed,
  • a first of the nip rolls is driven by a motor or a hand crank.
  • pressure points in the conveyor rollers should be avoided and the service life of the conveyor rollers should be extended.
  • a further object is to provide a textile testing device with an improved conveying device.
  • the invention proposes a reversal of the principle followed in the prior art:
  • the two conveyor rollers should constantly, especially at rest, be kept apart, and active only in the operating state
  • the inventive conveyor device for a tester for testing elongate textile test material includes a motor and a pair for conveying the test material cooperating conveyor rollers whose lateral surfaces are pressed against each other. At least one of the two conveyor rollers is operatively connected to the motor for the purpose of its rotary drive, and at least one of the two conveyor rollers is movably mounted in the direction perpendicular to its axis.
  • the conveyor further includes a passive opening mechanism which constantly drives the two conveyor rollers apart, and an actuatable, active closing mechanism which, when actuated, drives the two conveyor rollers against each other and overcomes the action of the passive opening mechanism.
  • the passive opening mechanism may include a preloaded first spring.
  • the active closing mechanism may include a pneumatic drive cylinder.
  • a positive connection in this document is understood as meaning a mechanical connection of parts in which the parts engage in one another and thus prevent separation by an external force. The external force acts in this case perpendicular to the respective surfaces in contact with each other and pushes them up to today.
  • a positive connection occurs /. B. between two intermeshing gears.
  • each of the two conveyor rollers is operatively connected to the motor for the purpose of its rotary drive.
  • the operative connection of at least one of the two conveying rollers with the motor includes a frictional connection which does not come about via the lateral surfaces of the two conveyor rollers.
  • the two conveying rollers and the frictionally engaged connection are designed in such a way that a maximum force acting between the lateral surfaces of the two conveying rollers
  • Sticking force caused torque is greater than a caused by acting in the frictional connection maximum static friction force
  • the operative connection of at least one of the two conveyor rollers with the motor may include a drive belt.
  • the drive belt may be toothless and contained in the frictional connection.
  • the toothless drive belt is preferably formed as a flat belt.
  • the conveyor device includes exactly one drive belt, which is operatively connected on the one hand with a first shaft on which a first of the two conveyor rollers is mounted, and on the other hand with a second shaft on which a second of the two conveyor rollers is mounted.
  • the active shooting mechanism includes the drive belt.
  • the active Schiiessmechanismus may include a preloaded second spring, which drives the two conveyor rollers by means of the drive belt against each other upon actuation of the pneumatic drive cylinder.
  • a first of the two conveyor rollers is only positively connected to the motor operatively connected, and an operative connection of a second of the Both conveyor rollers to the engine includes the frictional connection.
  • the forrnschlüssige connection includes, for example, a positive coupling.
  • the engine is z. B. formed as external rotor motor.
  • the invention also relates to a testing device for testing elongated textile samples such as yarn, roving or sliver.
  • the inventive test device includes at least one sensor for the examination of the test material and a Förd ervoriques for conveying the test material along its longitudinal direction by the tester.
  • the conveying device is a conveying device according to the invention as described above.
  • FIG. 1 shows a test device according to the invention in a perspective view.
  • Figure 2 shows an embodiment of the inventive conveyor device in a perspective view from the bottom right.
  • FIG. 3 shows the conveying device of FIG. 2 in a view from below.
  • FIG. 4 shows the conveying device of FIG. 3 in a cross section along the plane
  • Figure 1 shows an example of an embodiment of the inventive test device 1 in a view from the left front.
  • the test apparatus 1 has a front 1 1 along which egg fürgutpfad 12 runs for a test (not shown) textile test material.
  • automatic introduction device 13 for introducing the test material in the fürgutpfad 12 attached.
  • the test material is gripped by a movable and rotatable gripper 14 of the insertion device 13 and introduced by a corresponding movement of the gripper 14.
  • test material passes through an automatic
  • the test material leaves the sketchgutpfad 12 through a Absaugöffhung 16.
  • the protective caps 21, 22 may, for. B. are positioned by means of suitable positioning with respect to the conveyor 2 and magnetically secured to the same reversible.
  • the tester 1 has a tower-like structure.
  • the tower-like structure may include various functional modules.
  • a first functional module 17 in the present case includes the conveyor 2, the Absaugöffhung 16, an operating switch 101 and a
  • a second functional module 18 includes a capacitive sensor block 19 for the uniformity test of the test material. Further, located above the second function module 18 function modules can further, z. B. include optical sensors, but are not visible because of a front cover in Figure 1.
  • An embodiment of the conveyor device according to the invention is shown in a perspective view in FIG. 2, in a view from below in FIG. 3 and in a cross section along the plane IV-IV in FIG. 4 (see FIG. 3).
  • the inventive conveyor device 2 includes a motor 30.
  • the motor 30 is preferably designed as an external rotor motor whose advantage is the small footprint in the axial direction.
  • inventive conveying device 2 includes a pair for conveying the (not shown) to be tested cooperating conveyor rollers 41, 42, whose
  • the conveying rollers 41, 42 are designed as essentially identical cylinders with axes 43, 44 lying parallel to one another.
  • the lateral surfaces of the conveyor rollers 41, 42 are made of hard rubber and have a mutual static friction coefficient of 1 or more.
  • the first conveyor roller 41 is mounted on a first shaft 45, which in turn is mounted in a bearing block 61; the second conveyor roller 42 is mounted on a second shaft 46.
  • the test material is clamped between the two lateral surfaces, and upon rotation of the two conveyor rollers 41, 42 in opposite directions, the test material along its perpendicular to the cylinder axes 43, 44 extending longitudinal direction is moved by the conveyor device 2.
  • the conveyor rollers do not need to be identical. In particular, for certain applications, e.g. As for testing filament yarn, be advantageous to form their surfaces of different materials.
  • each of the two conveyor rollers 41, 42 is operatively connected to the motor 30.
  • the active compounds do not come about on the lateral surfaces of the two conveyor rollers 41, 42, so that each of the two conveyor rollers 41, 42 independently of the respective other conveyor roller 41, 42 from the motor 30 is driven to rotate.
  • the axis 43 of a first conveyor roller 41 coincides with an axis of the motor 30.
  • the first conveyor roller 41 is via coaxial shafts (one of which is the first shaft 45), which by means of a positive coupling 47, for example.
  • a star coupling are connected to each other, exclusively positively connected to the motor 30 operatively connected.
  • This frictional connection is not made about the lateral surfaces of the two conveyor rollers 41, 42, but by a toothless drive belt 50, preferably a flat belt. It can, for. B. a both sides symmetrically coated with polyurethane and ground flat belt 50 made of polyester type Esband PL) 1 101 are used.
  • the flat belt 50 has z. As the mass 520 mm x 13 mm x 1.25 mm, a coefficient of static friction against steel of 0.4 and a spring constant between 19 N / mm and 64 N / mm.
  • the toothless transmission belt 50 passes over four toothless pulleys 51-54.
  • a first pulley 51 is mounted on the first shaft 45, on which the first conveyor roller 41 is mounted and which is operatively connected via the clutch 47 to the motor 30.
  • the first pulley 51 thus connects the drive belt 50 to the engine 30, with the connection between the first pulley 51 and the drive belt 50 being a first frictional engagement.
  • a second pulley 52 is mounted on the second shaft 46, on which the second conveyor roller 42 is mounted.
  • the torque and movement of the drive belt 50 and thus of the motor 30 are transferred to the second conveyor roller 42, wherein the connection between the drive belt 50 and the second pulley 52 is again a - second - frictional connection.
  • a third, freely running pulley 53 and a fourth, freely running pulley 54 serve on the one hand the deflection of the drive belt 50 to achieve opposite directions of rotation of the two conveyor rollers 41, 42 and on the other hand for tensioning the drive belt 50.
  • the second conveyor roller 42 is mounted on a first pivot arm 62 which is pivotally mounted about a first pivot axis 64.
  • the pivot plane of the first pivot arm 62 is perpendicular to the second cylinder axis 44, and the pivoting direction is indicated in Figures 2-4 with a first double arrow 66.
  • a turn of the first Swivel arm 62 causes a removal of the second conveyor roller 42 from the first conveyor roller 41 and an approximation of the two conveyor rollers 41, 42 to each other up to the contact.
  • the pivoting of the second conveyor roller 42 allows first, a loading of the test material between the conveyor rollers 41, 42 and secondly an adjustment of the distance of the conveyor rollers 41, 42 to a thickness of the test material, which is particularly important for thick test items such as slivers.
  • the third pulley 53 is mounted on a second pivot arm 63 which is pivotally mounted about a second pivot axis 65 parallel to the first pivot axis 64.
  • the pivoting direction of the second pivot arm 63 is indicated in FIGS. 2-4 by a second double arrow 67.
  • the conveyor device 2 includes a passive one
  • the passive opening mechanism includes a preloaded first spring 70, for example a helical compression spring with a spring constant of 1.98 N / mm.
  • the first spring 70 is mounted on a plunger 81 between a free end of the plunger 81 and the bearing block 61. In a resting state, the first spring 70 constantly presses the free end of the plunger 81 against the first pivot arm 62, whereby the second conveyor roller 42 is pushed away from the first conveyor roller 41. In this rest state so the two lateral surfaces of the conveyor rollers 41, 42 are spaced apart, so that a test material can be inserted between the conveyor rollers.
  • the conveying device 2 comprises an active conveyor
  • the active closing mechanism includes a pneumatic drive cylinder 82 for the linear drive of the ram 81.
  • the pneumatic drive cylinder 82 is attached to the bearing block 61 and connected via a supply hose 83 and a (not shown) controllable valve with a (not shown) compressed air source.
  • a (not shown) controllable valve with a (not shown) compressed air source.
  • it pulls the plunger 81 back so that the first spring 70 is compressed even more and the first pivot arm 62 for Can swivel bearing block 61 out.
  • the direction of movement of the plunger 81 is indicated in FIG. 4 by a double arrow 84.
  • the second pivot arm 63 is acted upon by a force of a prestressed second spring 85, for example a torsion spring, with a torque increase of 26 Nmm / deg.
  • This force of the second spring 85 pushes the second pivot arm 63 away from the bearing block 61.
  • Swing arm 63 exerts, however, is smaller than the torque exerted by the first spring 70 on the first pivot arm 62. Therefore, the first spring 70 dominates over the second spring 85, and the conveyor 2 is at rest, as long as the pneumatic drive cylinder 82 remains unactuated. Only upon actuation of the pneumatic drive cylinder 82, this pulls the first spring 70 back and lifts their pressure on the first pivot arm 62. Then, the second spring 85 pivots the second swing arm 63 with the third pulley 53 away from the bearing block 61. On the third pulley 53, the drive belt 50 and the second pulley 52 while a tensile force is exerted on the now freely pivotable first pivot arm 62.
  • the first pivot arm 62 pivots so far to the bearing block 61 out until the operating condition is reached.
  • the first spring 70, the drive belt 50, and the second spring 85 form a system of coupled springs.
  • the drive belt 50 has a well-defined bias, which is determined by the force of the second spring 85 and the geometry of the conveyor 2.
  • the bias of the drive belt 50 also determines the force with which the two conveyor rollers 41, 42 are pressed against each other, and with the corresponding coefficient of friction, the frictional force between the two lateral surfaces of the conveyor rollers 41, 42nd This is due to the maximum static friction force between the drive belt 50 and the
  • Pulleys 51, 52 caused torque Mi is preferably smaller than the torque M 2 caused by the maximum static frictional force between the two lateral surfaces of the conveyor rollers 41, 42. Then, the slip always occurring in practice on the drive side - ie between the drive belt 50 and the pulleys 51, 52 - instead of on the output side - ie between the two conveyor rollers 41, 42.
  • the erfmdungsgemässe conveyor is easy to maintain. Particularly in the embodiment discussed herein, the single drive belt 50 can be easily replaced without tools and without dismantling parts.
  • the tension of the drive belt 50 in the operating state is characterized by the second spring 85 and the geometry of
  • Conveyor 2 predetermined and need not be readjusted after a maintenance.
  • the entire conveyor device 2 is mounted on a base plate 91.
  • the mounting of the conveying device 2 on the base plate 91 is preferably damped by means of damping elements so that vibrations generated by rotating elements of the conveying device 2 are not transmitted to the rest of the testing device 1.
  • the base plate 91 is by means of a stepping motor 92 relative to a slot 93 in linear guides 94 back and forth to the already known from the prior art oscillating movement of the test material relative to the conveyor rollers 41; 42 to achieve. Thanks to the traversing movement, the conveyor rollers 41, 42 are worn evenly.
  • the insert 93 can be the first Function module 17 are inserted into a frame housing of the tester 1 (see Figure 1).
  • the frictional connection of at least one of the two conveyor rollers 41, 42 with the motor 30 does not include a toothless drive belt 50, but could, for. B. be made by means of a friction clutch.
  • gear transmission and / or toothed belt can be used for torque transmission.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

Un dispositif de transport (2) destiné à un appareil de contrôle destiné à contrôler des matières textiles allongées à contrôler, comprend un moteur (30) et une paire de rouleaux de transport (41, 42) qui coopèrent pour transporter la matière à contrôler. Les surfaces latérales des rouleaux de transport peuvent être comprimées l'une contre l'autre. Au moins l'un des deux rouleaux de transport (41, 42) est relié de manière active au moteur (30) qui permet son/leur entraînement en rotation. Au moins l'un (42) des deux rouleaux de transport (41, 42) est monté mobile dans une direction perpendiculaire à son axe (44). Le dispositif de transport comprend un mécanisme d'ouverture passif qui écarte en continu les deux rouleaux de transport (41, 42) l'un de l'autre, et un mécanisme de fermeture actif actionnable qui, lorsqu'il est actionné, entraîne les deux rouleaux de transport (41, 42) l'un contre l'autre et s'oppose à l'action du mécanisme d'ouverture passif. Le fait que le mécanisme d'ouverture passif maintienne les deux rouleaux de transport (41, 42) écartés à l'état de repos permet d'éviter la présence de points de compression dans les rouleaux de transport (41, 42) et de prolonger la durée de vie des rouleaux de transport (41, 42).
PCT/CH2016/000037 2015-03-20 2016-02-29 Dispositif de transport pour appareil de contrôle textile WO2016149843A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4142015 2015-03-20
CH00414/15 2015-03-20

Publications (1)

Publication Number Publication Date
WO2016149843A1 true WO2016149843A1 (fr) 2016-09-29

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PCT/CH2016/000038 WO2016149844A1 (fr) 2015-03-20 2016-02-29 Dispositif de transport pour appareil de contrôle textile
PCT/CH2016/000037 WO2016149843A1 (fr) 2015-03-20 2016-02-29 Dispositif de transport pour appareil de contrôle textile

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017096A1 (fr) 1979-03-24 1980-10-15 Feldmühle Aktiengesellschaft Procédé et appareil pour contrôler la pénétration de matériaux de revêtement et de substrats
EP0266615A2 (fr) * 1986-11-07 1988-05-11 Zellweger Uster Ag Appareil pour la détermination automatique de caractéristiques d'un produit textile
US4846388A (en) 1985-05-17 1989-07-11 Benbow Christopher B Yarn dispensing apparatus
US4862741A (en) 1986-11-07 1989-09-05 Zellweger Uster Ag Textile strand tester
US5050437A (en) 1989-06-20 1991-09-24 Zellweger Uster Ag Apparatus for determining strength properties of long textile test material
DE19538142A1 (de) 1995-10-13 1997-04-17 Zweigle Textilpruefmaschinen G Vorrichtung zum Prüfen eines Fasergleitvermögens eines Fasermaterials
EP2787344A1 (fr) * 2010-06-09 2014-10-08 Uster Technologies AG Dispositif de détermination de caractéristiques d'un fil

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017096A1 (fr) 1979-03-24 1980-10-15 Feldmühle Aktiengesellschaft Procédé et appareil pour contrôler la pénétration de matériaux de revêtement et de substrats
EP0017096B1 (fr) * 1979-03-24 1982-04-21 Feldmühle Aktiengesellschaft Procédé et appareil pour contrôler la pénétration de matériaux de revêtement et de substrats
US4846388A (en) 1985-05-17 1989-07-11 Benbow Christopher B Yarn dispensing apparatus
EP0266615A2 (fr) * 1986-11-07 1988-05-11 Zellweger Uster Ag Appareil pour la détermination automatique de caractéristiques d'un produit textile
US4862741A (en) 1986-11-07 1989-09-05 Zellweger Uster Ag Textile strand tester
US5050437A (en) 1989-06-20 1991-09-24 Zellweger Uster Ag Apparatus for determining strength properties of long textile test material
DE19538142A1 (de) 1995-10-13 1997-04-17 Zweigle Textilpruefmaschinen G Vorrichtung zum Prüfen eines Fasergleitvermögens eines Fasermaterials
EP2787344A1 (fr) * 2010-06-09 2014-10-08 Uster Technologies AG Dispositif de détermination de caractéristiques d'un fil

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