EP0332146A1 - Verfahren zur Überziehung eines Zylinders mit einem Kunststoffgewebe unter Spannung und Spannvorrichtung zur Durchführung des Verfahrens - Google Patents

Verfahren zur Überziehung eines Zylinders mit einem Kunststoffgewebe unter Spannung und Spannvorrichtung zur Durchführung des Verfahrens Download PDF

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Publication number
EP0332146A1
EP0332146A1 EP89104015A EP89104015A EP0332146A1 EP 0332146 A1 EP0332146 A1 EP 0332146A1 EP 89104015 A EP89104015 A EP 89104015A EP 89104015 A EP89104015 A EP 89104015A EP 0332146 A1 EP0332146 A1 EP 0332146A1
Authority
EP
European Patent Office
Prior art keywords
loops
fabric
canvas
sleeve
surrounded
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
EP89104015A
Other languages
English (en)
French (fr)
Other versions
EP0332146B1 (de
Inventor
Maurice Gauthier
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.)
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Original Assignee
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
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 COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA filed Critical COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Priority to AT89104015T priority Critical patent/ATE78884T1/de
Publication of EP0332146A1 publication Critical patent/EP0332146A1/de
Application granted granted Critical
Publication of EP0332146B1 publication Critical patent/EP0332146B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0054—Seams thereof

Definitions

  • the present invention relates to a method of laying a canvas of synthetic threads with a tension around a surface to be surrounded in particular by a cylinder used in the manufacture of paper.
  • the canvas can be made integral with the latter by pulling on the edges of this canvas, by springs or hoops fixed on the edges of the cylinder.
  • the edges of the fabric are clamped between the frets on each side of the cylinder. Then we move them away from the edges of the cylinder using screws fixed on the hoops. The tensile forces exerted reduce the diameter of the fabric and press it against the cylinder. It is a complicated and long operation requiring special equipment on the edges of the cylinder.
  • warp and weft elements of the fabric are orthogonal to the axis of the cylinder, use is preferably made of synthetic materials, heat shrinkable to make them integral with the cylinder.
  • the method of laying a canvas of synthetic threads with tension around a surface to be surrounded is easier to implement than those mentioned above and is characterized in that a canvas is taken open ended at its two ends by joining means, and provided at these ends with fastening elements fixed regularly along these ends, said fabric being shorter than the surface to be surrounded, it is placed around the surface to surround to form a sleeve, a strong tension is exerted with a tensioning device on the fastening elements to bring the two ends together over their entire width at the same time, one or more bands of weak are added to the ends of the fabric width of synthetic yarn, the length of which is equal to the width of the fabric, the said bands comprising two selvedges provided with loops which are threaded in the loops of the ends or in the loops of the adjacent band e to define channels into which rods are introduced, the number of bands added being just sufficient so that the sleeve has substantially the desired tension and that the two series of loops ending the sleeve
  • the method according to the invention is characterized in that an open cloth made of synthetic threads is taken, terminated at its two ends by loops or spirals, said cloth comprising at least at one end several bands in synthetic yarns of small width, the length of which is equal to the width of the fabric, the said bands comprising loops or being constituted by spirals which are meshed in the loops or spirals of the neighboring bands and crossed by rods, each end being provided fastening elements regularly fixed along these ends, the said fabric is placed around said surface, the fastening elements are pulled strongly using a tensioning device, to bring the ends of the canvas one from the other, we remove at one end of the canvas one or more bands so that the canvas has just the length sufficient to surround the surface having substantially the desired tension, we loop the loops ending the fabric one inside the other to determine a locking channel, a rod is introduced into the locking channel, and the tensioning device and the fastening elements are removed.
  • the method according to the invention is characterized in that an open canvas is made of synthetic threads terminated at its two ends by loops, it is placed around the surface to be surrounded, the two ends of said canvas being spaced from each other by a distance which decreases from one side of the fabric to the other at an angle a, we pull strongly in the vicinity of the two ends to bring them closer to each other , until we reach the desired tension, we approach a strip of synthetic threads of length greater than the width of the fabric and whose two selvedges provided with loops approach each other as the ends of the fabric at an angle a, the band is moved between the ends of the fabric so as to occupy the entire gap between said ends, the loops of the ends are fitted into the loops of the band to determine two locking channels, we introduce rods in the canals of v loosening, the tension is released on the ends of the canvas then the strip is cut to the width of the canvas.
  • the method according to this second variant is particularly simple to implement and requires only the same strip whatever the width of the cylinder to be coated.
  • the main application of the process of the invention relates to the laying of a covering around a cylinder but it can also be used to lay a stretched canvas around a surface which can be constituted by that which envelops several cylinders or several elements parallel to each other.
  • a device comprising two straps provided with two rigid longitudinal rods between which are mounted transverse threaded rods, the threaded rods being provided with bolts which by tightening bring a longitudinal rod closer on the other, the straps being provided to be fixed parallel to the longitudinal rods on generatrices of the fabric close to its ends.
  • This device is particularly simple to implement, in particular it can be put in place and removed easily.
  • the method of laying a canvas 1 of synthetic son around a cylinder 2 comprises the following steps. Take a canvas 1 consisting of a strip, for example woven, terminated at its two ends 3 by series of loops 4; at the manufacturer, the ends 13 of straps 6 were sewn parallel to the ends 3 of the fabric 1, that is i.e. parallel to the axis of cylinder 2.
  • the strip is wrapped around the cylinder 2 to form a sleeve, the length of the strip 1 is shorter than the periphery of the cylinder but its width is equal to the length of the cylinder 2.
  • the straps 6 are housed two rigid metal rods 7. On these two rods 7 are fixed rows of pins 8. Threaded rods 9 orthogonal to the rods 7 of the straps 6 are fixed at one end to the pins 8 of a rigid rod 7 and pass at the other end 10 through a bore 11 formed in the pins 8 of the other rod 7. These other ends 10 are provided with bolts 12.
  • the bolts 12 are screwed, which brings the two rigid rods 7 closer to one another.
  • a tension deemed sufficient preferably greater than 50 kg / m
  • one or more bands of synthetic threads 14 are approached, the length of which is equal to the width of the cylinder 2 and the two edges of which are provided with loops 15.
  • the bands 14 are connected to each other by interpenetration of the edge loops and insertion of a rod 16 in the channels 17 thus defined as well as at the two ends 3 (see FIG. 3).
  • the number of bands 14 used is sufficient to fill the distance between the two ends 3 of the stretched fabric. In case this distance is zero we will not need to add bands 14.
  • the bolts 12 of the threaded rods 9 are unscrewed to release the tension imposed by the device 5 and then the straps 6 are unscrewed.
  • the fabric 1 is thus tensioned around the cylinder 2.
  • the fabric 1 consists of strips 20 of spirals 22 connected by rods 21.
  • each strap 6 on the side opposite to the rigid rods is provided with rigid loops 23 which pass partially through spirals 22 to each end 18 of the fabric 1 along generatrices parallel to the axis of the cylinder 2.
  • These loops 23 have been fixed by the manufacturer in these spirals 20 by introducing a piano wire 24.
  • These rigid loops 23 may be loops formed with the weft threads of the strap or spirals held by the threads of the strap or metal staples fixed on the edges. The loops 23 are then fixed to the straps 6.
  • the bolts 12 of the threaded rods 9 are then screwed so as to bring these rigid rods closer to one another until the desired tension is obtained.
  • the extra length of the fabric 1 is eliminated by removing a sufficient number of strips 20 of spirals 22. There is kept a length of fabric 1 between the two generators under tension just sufficient to be able to close the fabric 1 by meshing one end of the spirals in the 'other so as to define a locking channel 26 in which a rod 21 is inserted (see Figure 5).
  • a fabric 1 is provided, the two ends 27 of which form an acute angle a when the fabric 1 in synthetic yarn is wrapped around cylinder 2.
  • the strip 29 is moved until it occupies exactly the space between the two ends 27.
  • the loops 31 of the strip 29 are then engaged in the loops 28 of the ends 27 to determine two locking channels into which two locking rods are introduced. 32.
  • the tensioning device is removed and then the strip is cut to the width of the cylinder.
  • the different methods of laying the canvas can also be used to lay a canvas 1 around a surface defined for example by several cylinders 33 with parallel axes as shown in FIG. 7.
  • intermediate bands can be replaced by spirals, staples or more generally by all the joining means which meshed together define a locking channel in which a rod can be introduced .
  • the fastening elements (6, 23, 6 ′) it is particularly advantageous for the fastening elements (6, 23, 6 ′) to be fixed parallel to the ends of the fabric at the manufacturer, the user then only has to put in place places the tensioning device (5) which is very easy to implement and to remove or add strips which is very easy to perform.

Landscapes

  • Treatment Of Fiber Materials (AREA)
  • Paper (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Tents Or Canopies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Clamps And Clips (AREA)
  • Sewing Machines And Sewing (AREA)
  • Electric Cable Installation (AREA)
EP89104015A 1988-03-08 1989-03-07 Verfahren zur Überziehung eines Zylinders mit einem Kunststoffgewebe unter Spannung und Spannvorrichtung zur Durchführung des Verfahrens Expired - Lifetime EP0332146B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104015T ATE78884T1 (de) 1988-03-08 1989-03-07 Verfahren zur ueberziehung eines zylinders mit einem kunststoffgewebe unter spannung und spannvorrichtung zur durchfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8802966A FR2628453B1 (fr) 1988-03-08 1988-03-08 Procede de pose d'une toile autour d'un cylindre et dispositif de pre-tension pour la mise en oeuvre du procede
FR8802966 1988-03-08

Publications (2)

Publication Number Publication Date
EP0332146A1 true EP0332146A1 (de) 1989-09-13
EP0332146B1 EP0332146B1 (de) 1992-07-29

Family

ID=9364037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104015A Expired - Lifetime EP0332146B1 (de) 1988-03-08 1989-03-07 Verfahren zur Überziehung eines Zylinders mit einem Kunststoffgewebe unter Spannung und Spannvorrichtung zur Durchführung des Verfahrens

Country Status (8)

Country Link
EP (1) EP0332146B1 (de)
JP (1) JP2677660B2 (de)
AT (1) ATE78884T1 (de)
DE (1) DE68902248T2 (de)
ES (1) ES2034441T3 (de)
FI (1) FI89947C (de)
FR (1) FR2628453B1 (de)
ZA (1) ZA891774B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5866755A (en) * 1993-06-14 1999-02-02 Basf Aktiengellschaft Animals transgenic for a tetracycline-regulated transcriptional inhibitor
EP1398411A2 (de) * 2002-09-10 2004-03-17 Heimbach GmbH & Co. Verfahren zum Verbinden der Bandenden von Transportbändern sowie Transportband und Schliesshilfe zur Durchführung dieses Verfahrens
WO2004061206A1 (en) * 2002-12-27 2004-07-22 Albany International Corp. Seam assist attachment device
US7028833B2 (en) 2004-04-09 2006-04-18 Heimbach Gmbh & Co. Method for connecting the belt ends of transport belts, as well as transport belt and closure aid for carrying out said method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2014003470A (es) * 2011-09-23 2014-10-17 Albany Int Corp Material de rezago de tambor y aparato de instalacion del mismo.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR437341A (fr) * 1911-11-24 1912-04-18 Gustav Hermann Ermisch Tendeur de courroies
GB417406A (en) * 1933-06-07 1934-10-04 Thomas Hindle Improvements in paper makers' dryer felts
GB982682A (en) * 1960-02-23 1965-02-10 Aurelio Zatti Improvements in and relating to woven felts for paper-board-making and like machines
US3436041A (en) * 1967-03-31 1969-04-01 Appleton Wire Works Corp Seam construction with heat shrinkable loop elements

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4819274U (de) * 1971-07-13 1973-03-05
JPS58155447U (ja) * 1982-04-12 1983-10-17 金子農機株式会社 平ベルトの緊張連結装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR437341A (fr) * 1911-11-24 1912-04-18 Gustav Hermann Ermisch Tendeur de courroies
GB417406A (en) * 1933-06-07 1934-10-04 Thomas Hindle Improvements in paper makers' dryer felts
GB982682A (en) * 1960-02-23 1965-02-10 Aurelio Zatti Improvements in and relating to woven felts for paper-board-making and like machines
US3436041A (en) * 1967-03-31 1969-04-01 Appleton Wire Works Corp Seam construction with heat shrinkable loop elements

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5866755A (en) * 1993-06-14 1999-02-02 Basf Aktiengellschaft Animals transgenic for a tetracycline-regulated transcriptional inhibitor
EP1398411A2 (de) * 2002-09-10 2004-03-17 Heimbach GmbH & Co. Verfahren zum Verbinden der Bandenden von Transportbändern sowie Transportband und Schliesshilfe zur Durchführung dieses Verfahrens
EP1398411A3 (de) * 2002-09-10 2004-05-12 Heimbach GmbH & Co. Verfahren zum Verbinden der Bandenden von Transportbändern sowie Transportband und Schliesshilfe zur Durchführung dieses Verfahrens
WO2004061206A1 (en) * 2002-12-27 2004-07-22 Albany International Corp. Seam assist attachment device
US7086128B2 (en) 2002-12-27 2006-08-08 Albany International Corp. Seam assist attachment device
CN100385066C (zh) * 2002-12-27 2008-04-30 阿尔巴尼国际公司 辅助缝合附接装置
US7028833B2 (en) 2004-04-09 2006-04-18 Heimbach Gmbh & Co. Method for connecting the belt ends of transport belts, as well as transport belt and closure aid for carrying out said method

Also Published As

Publication number Publication date
FR2628453A1 (fr) 1989-09-15
FI891055A (fi) 1989-09-09
JP2677660B2 (ja) 1997-11-17
JPH01272894A (ja) 1989-10-31
DE68902248T2 (de) 1992-12-10
ZA891774B (en) 1989-11-29
ATE78884T1 (de) 1992-08-15
EP0332146B1 (de) 1992-07-29
ES2034441T3 (es) 1993-04-01
FI89947B (fi) 1993-08-31
FI89947C (fi) 1993-12-10
FI891055A0 (fi) 1989-03-06
FR2628453B1 (fr) 1990-11-16
DE68902248D1 (de) 1992-09-03

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