IT1261529B - METHOD OF FORMATION OF LONGITUDINAL SLITS IN A CABLE CYLINDER OF AN INORGANIC FIBER, AND APPARATUS TO PRACTICE THE METHOD. - Google Patents

METHOD OF FORMATION OF LONGITUDINAL SLITS IN A CABLE CYLINDER OF AN INORGANIC FIBER, AND APPARATUS TO PRACTICE THE METHOD.

Info

Publication number
IT1261529B
IT1261529B ITRM930575A ITRM930575A IT1261529B IT 1261529 B IT1261529 B IT 1261529B IT RM930575 A ITRM930575 A IT RM930575A IT RM930575 A ITRM930575 A IT RM930575A IT 1261529 B IT1261529 B IT 1261529B
Authority
IT
Italy
Prior art keywords
cylinder
cutting blade
support
hollow cylinder
support cylinder
Prior art date
Application number
ITRM930575A
Other languages
Italian (it)
Inventor
Shigenobu Ito
Yukio Ohashi
Original Assignee
Nitto Boseki Co Ltd
Paramount Glass Mfg Co Ltd
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 Nitto Boseki Co Ltd, Paramount Glass Mfg Co Ltd filed Critical Nitto Boseki Co Ltd
Publication of ITRM930575A0 publication Critical patent/ITRM930575A0/en
Publication of ITRM930575A1 publication Critical patent/ITRM930575A1/en
Application granted granted Critical
Publication of IT1261529B publication Critical patent/IT1261529B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B26D1/03—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/001—Cutting tubes longitudinally

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Inorganic Fibers (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

Uno scopo di questa invenzione consiste nel fornire un metodo di formazione di fenditure in un cilindro cavo lungo di un laminato in fibra inorganica senza applicazione ad esso di una eccessiva sollecitazione di taglio, il quale cilindro deve essere aperto, e un apparecchio per mettere in pratica il metodo.Costituzione Una prima lama di taglio 13 sporge da una porzione dietro la porzione terminale frontale dietro la porzione terminale frontale di un cilindro di supporto 8 che è inserito in un cilindro cavo 1 in modo tale che essa si estenda lungo una normale C al cilindro di supporto. Una seconda lama di taglio 22 sporge da un supporto di macchina nella direzione di una normale al cilindro di supporto il quale supporto è disposto a fianco del cilindro di supporto in modo tale che essa sia spostata indietro rispetto alla porzione del cilindro di supporto che è diametralmente opposta alla porzione del cilindro di supporto dove è disposta la prima lama di taglio. Una terza lama di taglio 30 si estende radialmente dalla porzione del cilindro cavo che è posta dietro la seconda lama di taglio. Una quarta lama di taglio 38 si estende dalla terza lama di taglio 30 verso l'estremità della seconda lama di taglio tangenzialmente al cilindro cavo. Il cilindro di supporto 8 è fissato rigidamente al supporto di macchina attraverso una piastra di guida che, mentre le fenditure vengono formate nel cilindro cavo mediante le lame di taglio, ha la possibilità di spostarsi attraverso le fenditure cosi formate. Il cilindro cavo, dopo essere stato impegnato col cilindro di supporto, viene fatto scorrere su quest'ultimo.Effetti Le posizioni di avviamento di taglio delle lame di taglio vengono spostate assialmente e circonferenzialmente una rispetto all'altra rispetto al cilindro di supporto. Pertanto, nella formazione delle fenditure del cilindro cavo, lo sforzo di taglio non è concentrato in una parte del cilindro cavo, e pertanto quest'ultimo non viene mai deformato durante la formazione delle fenditure.Fig. 1.An object of this invention is to provide a method of forming slits in a long hollow cylinder of an inorganic fiber laminate without applying to it an excessive shear stress, which cylinder must be open, and an apparatus for putting into practice The method. Constitution A first cutting blade 13 protrudes from a portion behind the front end portion behind the front end portion of a support cylinder 8 which is inserted in a hollow cylinder 1 so that it extends along a normal C to support cylinder. A second cutting blade 22 protrudes from a machine support in the direction of a normal one to the support cylinder which support is arranged alongside the support cylinder so that it is moved backwards with respect to the portion of the support cylinder which is diametrically opposite to the portion of the support cylinder where the first cutting blade is arranged. A third cutting blade 30 extends radially from the portion of the hollow cylinder which is placed behind the second cutting blade. A fourth cutting blade 38 extends from the third cutting blade 30 towards the end of the second cutting blade tangentially to the hollow cylinder. The support cylinder 8 is rigidly fixed to the machine support through a guide plate which, while the slits are formed in the hollow cylinder by means of the cutting blades, has the possibility of moving through the slots thus formed. The hollow cylinder, after being engaged with the support cylinder, is slid over the latter. Effects The starting positions of the cutting blades are moved axially and circumferentially with respect to each other with respect to the support cylinder. Therefore, in the formation of the slots of the hollow cylinder, the shear stress is not concentrated in a part of the hollow cylinder, and therefore the latter is never deformed during the formation of the slits. 1.

ITRM930575A 1992-08-27 1993-08-27 METHOD OF FORMATION OF LONGITUDINAL SLITS IN A CABLE CYLINDER OF AN INORGANIC FIBER, AND APPARATUS TO PRACTICE THE METHOD. IT1261529B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4252245A JP2594494B2 (en) 1992-08-27 1992-08-27 Method and apparatus for forming longitudinal slits in inorganic fiber hollow cylinder

Publications (3)

Publication Number Publication Date
ITRM930575A0 ITRM930575A0 (en) 1993-08-27
ITRM930575A1 ITRM930575A1 (en) 1995-02-27
IT1261529B true IT1261529B (en) 1996-05-23

Family

ID=17234540

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM930575A IT1261529B (en) 1992-08-27 1993-08-27 METHOD OF FORMATION OF LONGITUDINAL SLITS IN A CABLE CYLINDER OF AN INORGANIC FIBER, AND APPARATUS TO PRACTICE THE METHOD.

Country Status (5)

Country Link
JP (1) JP2594494B2 (en)
KR (1) KR0185760B1 (en)
CN (1) CN1042903C (en)
HU (1) HU211818B (en)
IT (1) IT1261529B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111779912B (en) * 2020-07-10 2022-03-29 福建富华管业有限公司 Connecting method of connecting piece for strengthening pipeline sealing connection

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE19605T1 (en) * 1981-04-09 1986-05-15 Fibreglass Ltd DEVICE FOR SLITTING A HOLLOW OBJECT.
FR2567791B1 (en) * 1984-07-20 1987-07-10 Saint Gobain Isover LONGITUDINAL CUT OF A FIBROUS TUBULAR PRODUCT

Also Published As

Publication number Publication date
CN1042903C (en) 1999-04-14
HU211818B (en) 1995-12-28
CN1093031A (en) 1994-10-05
JPH0679692A (en) 1994-03-22
ITRM930575A1 (en) 1995-02-27
KR0185760B1 (en) 1999-05-01
HU9302434D0 (en) 1994-01-28
KR940003687A (en) 1994-03-12
HUT67568A (en) 1995-04-28
JP2594494B2 (en) 1997-03-26
ITRM930575A0 (en) 1993-08-27

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970829