EP1253232A2 - Zylinder für Schmirgel- und Bürstmaschinen - Google Patents

Zylinder für Schmirgel- und Bürstmaschinen Download PDF

Info

Publication number: EP1253232A2
Authority: EP; European Patent Office
Prior art keywords: cylinder; grooves; abrasive; intermediate jacket; grinding
Prior art date: 2001-04-27
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

EP02009108A

Other languages

English (en)

French (fr)

Other versions

EP1253232A3 (de

EP1253232B1 (de

Inventor

Antonio Panozzo

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.)

Lafer SpA

Original Assignee

Lafer 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.)

2001-04-27

Filing date

2002-04-24

Publication date

2002-10-30

2002-04-24 Application filed by Lafer SpA filed Critical Lafer SpA

2002-10-30 Publication of EP1253232A2 publication Critical patent/EP1253232A2/de

2003-04-23 Publication of EP1253232A3 publication Critical patent/EP1253232A3/de

2006-06-21 Application granted granted Critical

2006-06-21 Publication of EP1253232B1 publication Critical patent/EP1253232B1/de

2022-04-24 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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Classifications

- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics

Definitions

the invention concerns a cylinder able to be used in textile machines suitable to perform grinding or brushing operations or similar treatments on fabrics.
the cylinder according to the invention is able to be lined with abrasive and/or filamentary material suitable to exert a desired treatment of surface finishing on a fabric passing through in contact with its outer surface.
the cylinder according to the invention is also provided with, or associated with, at least a shaft around which it can be made to rotate idly or driven.
Said cylinder is characterized in that it has an inner cylindrical core made of metal, an intermediate jacket made of rubber material and provided with surface grooves, and an outer lining with abrasive characteristics.
Such cylinders generally have a metal jacket lined with abrasive or filamentary material suitable to generate the desired surface treatment on the fabric passing through.
Such cylinders can be driven or idle, and can be arranged in line or mounted on the circumference on a rotary drum around which the fabric to be treated is made to pass.
Examples of machines of this type can be found in EP-A-620.307, WO-A-99/01602 and EP-A-1.072.713, the last two in the name of the present Applicant.
Cooling systems for example using air or water, associated with said cylinders entail high costs and complexity in both construction and management.
Another disadvantage is created by the reduced adhesion between the abrasive material and the metal, which causes premature detachment and loosening, which oblige the machine operators to perform frequent maintenance operations.
a further disadvantage of traditional cylinders is that they have a reduced capacity to absorb impacts deriving from the passage of the fabric.
the purpose of the invention is to achieve a cylinder for machines intended for the surface finishing treatments of textile material, wherein the problems of overheating of the surface of the cylinders are drastically reduced, and therefore also the connected lack of homogeneity and regularity in the treatment.
machine should be intended in the widest possible meaning; in fact, the machine can even be simply a single cylinder, associated with means to move a fabric into at least partial contact with its outer surface.
Another purpose is to achieve a cylinder for textile machines which guarantees a high adhesion of the abrasive lining and a good capacity of absorbing impacts during the passage of the fabric.
a cylinder for textile grinding or brushing machines comprises a cylindrical nucleus or core made of metal material, an intermediate jacket made of non-metal material, and an outer lining made of abrasive or filamentary material.
the intermediate jacket is made of vulcanized rubber, bakelite, ebonite or similar.
said intermediate jacket is provided with surface grooves which affect a substantial part of its outer surface on which the abrasive lining is applied.
the function of said grooves is to dissipate and expel the heat generated due to the friction between the abrasive or filamentary lining and the fabric passing through, creating preferential tracks for the discharge of the heat towards the outside and transit passages for the air.
Another function of said grooves is to create an interruption in the surface on which the abrasive/filamentary material rests, generating, during the rotation of the cylinder, zones of discontinuity suitable to exert on the contact face of the fabric passing through a beating effect which improves the action of grinding/brushing.
said grooves are longitudinal and parallel to the axis of the cylinder.
said grooves are parallel to each other and angled with respect to the axis of the cylinder.
said grooves are arranged in one or more spirals along the surface of the cylinder.
said grooves are arranged parallel to each other and lie on a plane substantially orthogonal to the axis of the cylinder.
the rubber covered surface also ensures a greater capacity of absorbing impacts during the passage of the fabric and hence a more homogeneous action of grinding/brushing.
FIG. 1 shows schematically an example of a grinding machine 20 of the type with a rotary drum 11 on the periphery of which a plurality of grinding cylinders 10 is mounted, also rotary.
drawing rollers 12 and 13 At inlet to and outlet from the drum 11 there are drawing rollers, respectively 12 and 13, the function of which is to feed the fabric 14 which is to be treated to the grinding machine 20, maintaining a desired winding tension.
the machine 200 shown in Fig. 2 instead, has a plurality of grinding cylinders 10 arranged substantially aligned on a plane, on which cylinders 10 a fabric 14 is made to pass, tensioning rollers 15 being present and able to create a desired contact pressure between the fabric 14 and the cylinders 10.
machines 20 and 200 are not to be considered restrictive, since the cylinder 10 according to the invention can be applied substantially to every kind of machine suitable to perform finishing processes on fabrics 14.
a cylinder 10 according to the invention able to be used in the machines 20 and 200 of Figs. 1 and 2, or in other types of similar or comparable machines, is shown in a view in Fig. 3, in longitudinal section in Fig. 4 and in enlarged transverse section in Fig. 5.
Said cylinder 10 comprises an inner cylindrical metal core 16, which can be coupled with a shaft 17 to make it rotate, an intermediate jacket 18 made of rubber material, and an outer lining 19 made of abrasive or filamentary material, suitable to achieve the desired surface treatment of the fabric 14.
said outer lining 19 consists of an abrasive paper which is wound with a spiral development and has a desired pitch with respect to the longitudinal axis 22 of the relative cylinder 10.
the intermediate jacket 18 is provided, on its outer surface in contact with the abrasive lining 19, with a plurality of grooves 21 which, in the case shown here, are arranged in the direction of the length of the cylinder 10 but inclined with respect to its longitudinal axis 22.
Said grooves 21 are able to create a self-cooling action on the surface of the cylinder 10, creating preferential tracks to discharge the heat generated by the friction between the abrasive lining 19 and the fabric 14 passing through. Said grooves 21 also allow the air to pass along the whole surface of the cylinder 10 while the machine 20, 200 is functioning.
This beating effect causes a more effective and deeper abrasion and/or brushing action on the touch of the fabric 14.
the grooves 21 shown in Fig. 5 are substantially circular in shape, but it is clear that they can have any shape whatsoever, even polygonal, provided they are open on the outer surface of the intermediate jacket 18. Said grooves 21 can also have any development, longitudinal, transverse or inclined, with respect to the longitudinal axis 22 of the cylinder 10.
a grooved intermediate jacket 18 made of rubber material between the metal core 16 and the abrasive lining 19 also ensures that the lining 19 has a very high capacity of adhesion, and reduces to a minimum the risks of any detachment and loosening during use.
Said intermediate jacket 18 also gives a high capacity to absorb impacts deriving from the passage of the fabric 14.

Landscapes

Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Polishing Bodies And Polishing Tools (AREA)
Brushes (AREA)
Mechanical Treatment Of Semiconductor (AREA)

EP02009108A 2001-04-27 2002-04-24 Zylinder für Schmirgel- und Bürstmaschinen Expired - Lifetime EP1253232B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT2001UD000081A ITUD20010081A1 (it)	2001-04-27	2001-04-27	Cilindro per macchine smerigliatrici e spazzolatrici
ITUD20010081		2001-04-27

Publications (3)

Publication Number	Publication Date
EP1253232A2 true EP1253232A2 (de)	2002-10-30
EP1253232A3 EP1253232A3 (de)	2003-04-23
EP1253232B1 EP1253232B1 (de)	2006-06-21

Family

ID=11460575

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP02009108A Expired - Lifetime EP1253232B1 (de)	2001-04-27	2002-04-24	Zylinder für Schmirgel- und Bürstmaschinen

Country Status (4)

Country	Link
EP (1)	EP1253232B1 (de)
AT (1)	ATE331061T1 (de)
DE (1)	DE60212494T2 (de)
IT (1)	ITUD20010081A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ES2245568A1 (es) *	2003-10-01	2006-01-01	Torres Maquinaria Textil S.A.	"maquina esmeriladora de tejidos circular".
EP1867772A3 (de) *	2006-06-14	2007-12-26	Unitech Textile Machinery S.p.a.	Maschine zur Oberflächenbehandlung von Textilien

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3904003A1 (de) *	1989-02-10	1990-08-16	Sucker & Franz Mueller Gmbh	Schmirgelmaschine
IT1282270B1 (it) *	1995-10-20	1998-03-16	North Bel International Srl	Procedimento meccanico per la modifica in continuo a secco o in umido, dell'aspetto e del colore dei tessuti mediante rulli

2001
- 2001-04-27 IT IT2001UD000081A patent/ITUD20010081A1/it unknown
2002
- 2002-04-24 EP EP02009108A patent/EP1253232B1/de not_active Expired - Lifetime
- 2002-04-24 DE DE60212494T patent/DE60212494T2/de not_active Expired - Fee Related
- 2002-04-24 AT AT02009108T patent/ATE331061T1/de not_active IP Right Cessation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ES2245568A1 (es) *	2003-10-01	2006-01-01	Torres Maquinaria Textil S.A.	"maquina esmeriladora de tejidos circular".
ES2245568B1 (es) *	2003-10-01	2007-03-16	Torres Maquinaria Textil S.A.	"maquina esmeriladora de tejidos circular".
EP1867772A3 (de) *	2006-06-14	2007-12-26	Unitech Textile Machinery S.p.a.	Maschine zur Oberflächenbehandlung von Textilien

Also Published As

Publication number	Publication date
EP1253232A3 (de)	2003-04-23
ITUD20010081A1 (it)	2002-10-27
ATE331061T1 (de)	2006-07-15
DE60212494D1 (de)	2006-08-03
DE60212494T2 (de)	2007-01-11
EP1253232B1 (de)	2006-06-21

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