ITTO970801A1 - PAIR OF UPPER CYLINDERS FOR BELT IRONING MACHINES IN SPINNING MACHINES - Google Patents
PAIR OF UPPER CYLINDERS FOR BELT IRONING MACHINES IN SPINNING MACHINES Download PDFInfo
- Publication number
- ITTO970801A1 ITTO970801A1 IT97TO000801A ITTO970801A ITTO970801A1 IT TO970801 A1 ITTO970801 A1 IT TO970801A1 IT 97TO000801 A IT97TO000801 A IT 97TO000801A IT TO970801 A ITTO970801 A IT TO970801A IT TO970801 A1 ITTO970801 A1 IT TO970801A1
- Authority
- IT
- Italy
- Prior art keywords
- cylinders
- machines
- pair
- upper cylinders
- bodies
- Prior art date
Links
- 238000009987 spinning Methods 0.000 title claims description 3
- 238000010409 ironing Methods 0.000 title description 2
- 239000004033 plastic Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 230000000994 depressogenic effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000010073 coating (rubber) Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/74—Rollers or roller bearings
- D01H5/80—Rollers or roller bearings with covers; Cots or covers
Description
DESCRIZIONE dell'Invenzione Industriale dal titolo : "COPPIA DI CILINDRI SUPERIORI PER STIRATOI A CINGHIE IN MACCHINE PER PILATURA" DESCRIPTION of the Industrial Invention entitled: "PAIR OF UPPER CYLINDERS FOR BELT IRONING MACHINES IN DRAWING MACHINES"
TESTO DELLA DESCRIZIONE TEXT OF THE DESCRIPTION
L'invenzione concerne una coppia di cilindri superiori per stiratoi a cinghie in macchine per filatura, in cui ciascun cilindro presenta una zona centrale de pressa rispetto alle zone marginali. The invention relates to a pair of upper cylinders for belt drawing frames in spinning machines, in which each cylinder has a central zone of the press with respect to the marginal zones.
Siffatti cilindri con una zona centrale depressa as solvono la funzione di guidare le fibre. LB cinghia su periore tese sui cilindri penetra, in base allo stoppino di fibre chiuso in serraggio tra la cinghia inferiore e la cinghia superiore, nella zona centrale depressa. Così, si produce uns guida laterale delle fibre. Nei cilindri con zona centrale depressa, noti già da lungo tempo, denominati anche cilindri a canale, la superficie dei cilindri consiste di un rivestimento di gomme, in cui è incavate la zona centrale depressa. Queste superfici di scorrimento di gomma presentano 1' inconveniente che, durante il funzionamento, sotto la pressione di spinta del cilindro inferiore si deformano, cioè si appiattiscono. Siccome la cinghia superiore è azionata dalla cinghia inferiore, così si viene a produrre una accelerazione locale della cinghia supe -riore nella zona del cilindro superiore appiattito. Da ciò possono essere provocati inarcamenti della cinghia superiore. Una guida corretta delle fibre così è esclu sa. Attraverso usura differentemente forte delle super fici, si possono,inoltre produrre con i rivestimenti di gomma dei cilindri finora noti oscillazioni di diametro causanti una distorsione laterale delle cinghie, ciò che si ripercuote parimenti sulla qualità del fi -lato . Such cylinders with a depressed central zone perform the function of guiding the fibers. The upper belt tensioned on the cylinders penetrates, on the basis of the fiber wick closed in tightening between the lower belt and the upper belt, in the depressed central area. Thus, a lateral guiding of the fibers is produced. In cylinders with depressed central zone, known for a long time, also called channel cylinders, the surface of the cylinders consists of a rubber coating, in which the depressed central zone is hollowed. These rubber sliding surfaces have the drawback that, during operation, under the thrust pressure of the lower cylinder they deform, that is, they flatten. As the upper belt is driven by the lower belt, local acceleration of the upper belt is produced in the region of the flattened upper cylinder. This can cause the upper belt to buckle. Correct guidance of the fibers is thus excluded. Through differently severe wear of the surfaces, diameter oscillations can also be produced with the rubber linings of the cylinders known up to now, causing lateral distortion of the belts, which also affects the quality of the yarn.
La presente invenzione è basata sul problema di prov vedere una coppia di cilindri superiori, in cui gli in convenienti lamentati siano eliminati. The present invention is based on the problem of providing a pair of upper cylinders in which the complained drawbacks are eliminated.
Il problema è risolto con una coppia di cilindri su periori del tipo inizialmente indicato secondo l’inven zione con ciò che le superfici dei cilindri sono costi tuite da corpi di materia plastica innestebili sui cilindri. I corpi di materia plastica possono essere par ti stampate ad iniezione di fabbricazione economica. Rispetto ai rivestimenti di gomma finora utilizzati, superile! dei cilindri di materie plestice presentano il vantaggio di non essere esposti ed alcune deformazione. Anche il pericolo di un'usura non uniforme è mi nore rispetto e.cilindri con rivestimento di gomme. Ul teriori venteggi sono ottenibili con ciò che i corpi di materia plastica possono essere disposti in modo ri cambiabile sui cilindri. Similmente, come i rivestimeli ti di gomme finora utilizzati, i corpi di meterie plestice possono essere sostituiti in qualsiasi momento con corpi nuovi. Così è anche resa possibile une rapida trasformazione delle macchine in funzione di differenti spessori di filato o tipi di filato attraverso 1' epplicezione di corpi di materie plestice con diametro appropriato delle zone centrale. Inoltre, cilindri prov visti finore di rivestimento di gomme possono essere riequipeggieti con i corpi di meterie plestice. Il raggio delle zone centrale può essere venteggiosemente minore di un valore compreso tre 0,5 mm e 2 min rispetto al raggio delle zone marginali. In pratica, è risultato che une differenza dei raggi di 1 mm è particolarmente appropriata per le produzione di quasi tutti i filati. The problem is solved with a pair of upper cylinders of the type initially indicated according to the invention with which the surfaces of the cylinders are constituted by bodies of plastic material which can be inserted onto the cylinders. The plastic bodies may be injection molded parts of inexpensive manufacture. Compared to the rubber coatings used so far, superlative! some plastic material cylinders have the advantage of not being exposed and some deformation. The danger of uneven wear is also less than with rubber coated cylinders. Further advantages are obtainable whereby the plastic bodies can be re-exchangeably disposed on the cylinders. Similarly, like the rubber coatings used heretofore, the plastic metal bodies can be replaced with new ones at any time. Thus, a rapid transformation of the machines according to different thicknesses of yarn or types of yarn is also made possible through the addition of bodies of plastic materials with an appropriate diameter of the central areas. Further, cylinders provided with rubber coating can be retrofitted with the plastic metal bodies. The radius of the central areas can be significantly less than a value between 0.5 mm and 2 min compared to the radius of the marginal areas. In practice, it turned out that a radius difference of 1 mm is particularly appropriate for the production of almost all yarns.
In quanto segue, un esempio di realizzazione preferi to di una coppie di cilindri superiori secondo l'invenzione è descritto con maggior dettaglio in bese ell'ennesso disegno, in cui: In what follows, a preferred embodiment of a pair of upper cylinders according to the invention is described in greater detail in the annexed drawing, in which:
La fig. 1 è una vista frontale parzialmente in sezio ne di una coppia di cilindri superiori; Fig. 1 is a partially sectional front view of a pair of upper cylinders;
la fig. 2 è una vista laterale di uno dei cilindri secondo la fig. 1. fig. 2 is a side view of one of the cylinders according to fig. 1.
La fig. 1 mostra una coppia di cilindri superiori 10 comprendente due cilindri 12 e 13 montati fissi su un asse comune 11. Ciascuno dei due cilindri 12 e 13 pre -senta due zone marginali rialzate 12.1, 12.2 e 13-1, 13·2 ed una zone depressa 12.3, 13·3 interposta tra le prime. Le superfici dei cilindri 12 e 13 sono costituite da corpi di materia plastica 14-e 15, i quali sono innestati lateralmente su un corpo di base 17 dei cilin dri . I corpi di .materia plastica 14 e 15 possono essere convenientemente parti stampate ad iniezione ed essere realizzati, come illustra la fig. 2, come corpi csvi con nervature di collegamento 14.1 tra il cilindro interno 14.2 ed il cilindro esterno 14.3· Fig. 1 shows a pair of upper cylinders 10 comprising two cylinders 12 and 13 fixedly mounted on a common axis 11. Each of the two cylinders 12 and 13 has two raised marginal zones 12.1, 12.2 and 13-1, 13 2 and a zone depressed 12.3, 13 · 3 interposed among the former. The surfaces of the cylinders 12 and 13 are constituted by bodies of plastic material 14-and 15, which are laterally grafted onto a base body 17 of the cylinders. The bodies of plastic material 14 and 15 can conveniently be injection-molded parts and be made, as shown in Fig. 2, as CSV bodies with connecting ribs 14.1 between the inner cylinder 14.2 and the outer cylinder 14.3
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29616186U DE29616186U1 (en) | 1996-09-17 | 1996-09-17 | Top roller pair for apron drafting systems of spinning machines |
Publications (2)
Publication Number | Publication Date |
---|---|
ITTO970801A1 true ITTO970801A1 (en) | 1999-03-10 |
IT1294854B1 IT1294854B1 (en) | 1999-04-23 |
Family
ID=8029338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT97TO000801A IT1294854B1 (en) | 1996-09-17 | 1997-09-10 | PAIR OF UPPER CYLINDERS FOR BELT IRONING MACHINES IN SPINNING MACHINES |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP3047134U (en) |
KR (1) | KR19980019058U (en) |
CN (1) | CN1182143A (en) |
DE (1) | DE29616186U1 (en) |
FR (1) | FR2753458A1 (en) |
IT (1) | IT1294854B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102978758A (en) * | 2012-12-03 | 2013-03-20 | 吴江市社翊纺织有限公司 | Novel traction bottom roller |
CN102978756A (en) * | 2012-12-03 | 2013-03-20 | 吴江市社翊纺织有限公司 | Preparation method of novel traction bottom roller |
CN103103650A (en) * | 2012-12-10 | 2013-05-15 | 苏州尊元纺织有限公司 | Novel roller of textile machinery |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE790052Q (en) * | 1970-09-03 | 1973-02-01 | Cigardi Omc Sa | Apron drafting device - for fibre rovings, having aprons supported on radially displaceable roller |
DE2937726C2 (en) * | 1979-09-18 | 1984-09-27 | Taškentskoe special'noe konstruktorskoe bjuro tekstil'nych mašin, Taškent | Pressure roller for drafting devices of textile machines |
JPS5943565B2 (en) * | 1981-10-20 | 1984-10-23 | 東亜紡織株式会社 | Totsu Prora draft device |
-
1996
- 1996-09-17 DE DE29616186U patent/DE29616186U1/en not_active Expired - Lifetime
-
1997
- 1997-09-05 FR FR9711205A patent/FR2753458A1/en active Pending
- 1997-09-10 IT IT97TO000801A patent/IT1294854B1/en active IP Right Grant
- 1997-09-12 JP JP1997008653U patent/JP3047134U/en not_active Expired - Lifetime
- 1997-09-12 KR KR2019970025857U patent/KR19980019058U/en not_active Application Discontinuation
- 1997-09-16 CN CN97118463A patent/CN1182143A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE29616186U1 (en) | 1996-10-31 |
KR19980019058U (en) | 1998-07-06 |
CN1182143A (en) | 1998-05-20 |
IT1294854B1 (en) | 1999-04-23 |
FR2753458A1 (en) | 1998-03-20 |
JP3047134U (en) | 1998-03-31 |
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