EP0374872B1 - Device and process for locking a terminal edge of a fabric roll - Google Patents

Device and process for locking a terminal edge of a fabric roll Download PDF

Info

Publication number
EP0374872B1
EP0374872B1 EP89123530A EP89123530A EP0374872B1 EP 0374872 B1 EP0374872 B1 EP 0374872B1 EP 89123530 A EP89123530 A EP 89123530A EP 89123530 A EP89123530 A EP 89123530A EP 0374872 B1 EP0374872 B1 EP 0374872B1
Authority
EP
European Patent Office
Prior art keywords
roll
fabric roll
fabric
terminal edge
lock device
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
EP89123530A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0374872A2 (en
EP0374872A3 (en
Inventor
Paolino Gastoldi
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.)
LA MECCANICA COSTRUZIONE MACCHINE TESSILI SpA
Original Assignee
LA MECCANICA COSTRUZIONE MACCHINE TESSILI SpA
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 LA MECCANICA COSTRUZIONE MACCHINE TESSILI SpA filed Critical LA MECCANICA COSTRUZIONE MACCHINE TESSILI SpA
Priority to AT89123530T priority Critical patent/ATE79598T1/de
Publication of EP0374872A2 publication Critical patent/EP0374872A2/en
Publication of EP0374872A3 publication Critical patent/EP0374872A3/en
Application granted granted Critical
Publication of EP0374872B1 publication Critical patent/EP0374872B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/29—Securing the trailing end of the wound web to the web roll

Definitions

  • the present invention relates to a device and a process for locking the terminal edge of a fabric roll and it is referred to the technical field of machines used for winding fabrics and cloths in automatic manner.
  • the locking of the terminal edge of a fabric roll or similar material roll precedently wound onto e.g. a cylindrical cardboard element is made by some proper lock elements, using one or more lock devices.
  • the lock elements are adhesive bands that, using proper lock devices including particular feeders, are applied by adhesion to the fabric roll along a length corresponding to its whole circumference.
  • the adhesive bands are normally fed from the lock devices by the drawing action of the rotating fabric roll after a little initial part of said adhesive bands was joined by adhesion to the fabric roll.
  • This length corresponds, for each applied band, to the whole circumference of the fabric roll. This causes the possibility of damaging the whole more external turn of the fabric roll, as generally the adhesive band causes some traces or signs onto the fabric, above all if the said fabric is soft. Further during the use it is necessary to cut the adhesive band, instead of separating it simply by detaching, using particular attention for avoiding the fabric damages, as it is not possible to find easily the band end point, overlapped to another zone thereof, and to start its removal from this position.
  • a second important drawback is the stretch of the fabric, that is caused to the roll surface, as the adhesive band is applied onto the same roll by the drawing action of this roll, driven previously in rotation. This drawback is particularly important with soft fabrics.
  • the technical scope of the present invention is to supply a device and a process for locking the terminal edge of a fabric roll suitable for obviating substantially the above mentioned drawbacks.
  • an important object of the invention is to supply a device and a process in which the damages caused to the external surfaces of the fabric roll by the lock elements of the terminal edge are substantially reduced, and in which the stretches or tensions of the fabric are totally avoided, mainly in the application zones of the locking elements of the terminal edge.
  • Another important object of the invention is to supply a device and a process in which the removal of the lock elements is easier during the use of the fabric roll.
  • a device and a process which correspond respectively to the preamble of independent claims 1 and 10, are known from FR-A-2 235 075.
  • It includes a seat 2, suitable for housing a fabric roll 3, showing the terminal edge 3a obtained by the cutting made by a cutting member 4 located on one side of the device 1.
  • the cutting member 4 makes a cutting edge 3b of the fabric by truncation and it is adjacent to a winding device, located on the left side of the cutting member 4 in Fig. 1, in which the roll 3 is formed and then ejected in the direction of the seat 2, passing under the cutting member 4.
  • the seat 2 is substantially formed by positioning members 5 of the roll 3, including a couple of mobile bearings or conveyor belts 5a and 5b and a drive member 5c.
  • the conveyor belts 5a and 5b are laid on a cradle and the drive member 5c drives the same conveyor belts in a manner suitable for turning the fabric roll 3 around its axle by tangential drive.
  • the roll 3 remains always housed within the seat 2, with its central axle being located in substantially fixed position. Before rotating the roll 3 around its axle, the terminal edge 3a engages a positioning zone 2a of the fabric having a constant length, equal to the distance between the cutting member 4 and the roll 3.
  • the guide members 9 and drive means 10, located onto the bar 6, are foreseen at the ends of said bar 6.
  • the guide members 9 include rail elements 11, mounted substantially in radial direction with respect to the fabric roll 3 and trolley elements 12, joined to the bar 6 and sliding on the rail elements 11.
  • the drive means 10 includes, in conjunction with an end of the bar 6, an electric motor 14, joined to the bar 6 and mobile therealong, a gear 15 keyed to a shaft 16 parallel to the bar 6 and rotating driven by the motor 14 and a rack 17 substantially directed in radial direction with respect to the fabric roll 3 and meshed with the gear 15.
  • Each one of the above described lock devices 7 supported by the bar 6, includes ( Figure 3) rewinding members 18 of a continuous support strip 19, on which the adhesive labels 8 are applied in succession and separated with one another.
  • Each lock device 7 includes also drive elements 7a suitable for supplying by force the adhesive labels 8 at a feeding speed coinciding with the foreseen peripheral speed of the roll 3, that is the peripheral speed caused by conveyor belts 5a, 5b by means of the drive member 5c.
  • pressure members 20 of the labels 8 made up of rollers parallel to the fabric roll 3 and supported by spring means 20a activing in the direction of the roll 3 are provided.
  • the device 1 includes synchronization means 21 including electronic programmable logic units and connected both to the lock devices 7 and to the drive member 5c.
  • synchronization means 21 is suitable for activating the lock devices 7 during the passage of the cutting edge 3b under the said lock devices and for this aim they include sensors, such as a finger 13 and a rotation time counter 22.
  • the finger 13 is supported by the bar 6, joined to the electric motor 14 and directed to the roll 3 for measuring the diameter of the roll 3.
  • the time counter 22 is joined to the drive member 5c and is suitable for surveying the rotation time of the roll 3 corresponding to the activation time of the drive member 5c.
  • the finger 13 causes the stop of the motor 14, the same finger supplies also the informations necessary for recognizing the measure of the diameter of fabric roll 3 and therefore it allows the calculation of the above mentioned rotation time of the roll, necessary for causing the passage of the cutting edge 3b before the lock devices 7.
  • the operation of the cutting member 4 realizes in one side of the seat 2, the cutting edge 3b that forms the end of the terminal edge 3a to be wound and fixed.
  • the terminal edge 3a remains unwound and laid to the positioning zone 2a, and has a prefixed length, while the roll 3 is located in the seat 2 on the positioning members 5.
  • the bar 6 is lowered until the finger 13 contacts the roll 3.
  • the lock devices 7 are correctly positioned at a suitable operative distance from the surface of the roll 3. Further the finger 13 sends a signal for the synchronization means 21 that establishes the exact value of the diameter of the roll 3.
  • the synchronization means 21 can calculate a time T1 necessary for rotating the roll 3 with a prefixed speed by the angle included between the contact zone of the seat 2, located approximatively on the vertical direction with respect to centre of the roll 3, and the feeding point of the adhesive labels 8.
  • the synchronization means 21 stores a time T2 necessary for winding of the fabric section having a constant length included between the cutting member 4 and the above mentioned contact zone. Therefore it is foreseen that the roll 3 is wound with a constant peripheral or tangential speed as the conveyor belts 5a, 5b are driven by the drive member 5c with a substantially constant speed, and the time T2 is constant and independent from the diameter of the fabric roll 3.
  • time T1 can be calculated easily.
  • the sum of the time T1 and time T2 supplies the total time T corresponding to the rotation of the fabric roll 3 suitable for positioning the end of the terminal edge 3a in the zone foreseen under the lock devices 7.
  • the feeding of the adhesive labels 8 occurs at a speed coinciding with the progress speed of the conveyor belts 5a and 5b, that is also the peripheral speed of the fabric roll 3. In this manner the adhesion of the label to the fabric is made without applying any stretch on the fabric.
  • the rollers 20 supplies a spring pressing force, suitable for guaranteeing the perfect adhesion of the label 8 to the fabric.
  • the device 1 fulfils a process for locking the terminal edge of a fabric roll, also this being a part of the invention.
  • This process includes the installation of the fabric roll 3 with the terminal edge 3a to be wound having a prefixed length and the positioning of lock devices 7 of the terminal edge 3a in prefixed position with respect to the fabric roll 3.
  • the fabric roll 3 is rotated in winding direction with a prefixed peripheral speed and the lock devices 7 are driven only when the cutting edge 3b of the terminal edge 3a passes under said lock devices 7.
  • the adhesive label is applied onto the fabric roll, this label being advantageusly supplied at a speed coinciding with the peripheral rotation speed of the same fabric roll.
  • the invention achieves important advantages.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Labeling Devices (AREA)
EP89123530A 1988-12-23 1989-12-20 Device and process for locking a terminal edge of a fabric roll Expired - Lifetime EP0374872B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89123530T ATE79598T1 (de) 1988-12-23 1989-12-20 Vorrichtung und verfahren zum besfestigen einer endkante einer textilerzeugnisrolle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2310988 1988-12-23
IT8823109A IT1227842B (it) 1988-12-23 1988-12-23 Apparato e procedimento per bloccare il lembo terminale di un rotolo di tessuto

Publications (3)

Publication Number Publication Date
EP0374872A2 EP0374872A2 (en) 1990-06-27
EP0374872A3 EP0374872A3 (en) 1990-11-14
EP0374872B1 true EP0374872B1 (en) 1992-08-19

Family

ID=11203880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123530A Expired - Lifetime EP0374872B1 (en) 1988-12-23 1989-12-20 Device and process for locking a terminal edge of a fabric roll

Country Status (4)

Country Link
EP (1) EP0374872B1 (it)
AT (1) ATE79598T1 (it)
DE (1) DE68902540T2 (it)
IT (1) IT1227842B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927209A1 (de) * 1989-08-17 1991-02-21 Iro Ab Vorrichtung zum sichern des wickelendes eines rollenwickels in einer textilbahn-wickelvorrichtung
IT1246210B (it) * 1990-10-18 1994-11-16 Of Fri S R L Officine Frigerio Macchina automatica di fasciatura periferica di rotoli di materiale instriscia, quale tessuto.
US5636810A (en) * 1992-08-06 1997-06-10 Beloit Technologies, Inc. Apparatus for applying adhesive to a web roll being wound in a winding machine
DE19736497A1 (de) * 1997-08-22 1999-03-04 Meyer Maschinenfabrik Gmbh Geb Verfahren zur Erzeugung eines Bandwickels sowie Vorrichtung zur Durchführung des Verfahrens
CN110239989B (zh) * 2019-06-20 2024-05-31 江苏嘉拓新能源智能装备股份有限公司 多功能卷材尾边自动冲孔、贴合、备胶、裁切装置及方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2235075B1 (it) * 1973-06-29 1977-03-11 Printex Sa

Also Published As

Publication number Publication date
IT1227842B (it) 1991-05-08
IT8823109A0 (it) 1988-12-23
DE68902540D1 (de) 1992-09-24
DE68902540T2 (de) 1992-12-24
ATE79598T1 (de) 1992-09-15
EP0374872A2 (en) 1990-06-27
EP0374872A3 (en) 1990-11-14

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