EP1390179A1 - Device and method for cutting - Google Patents
Device and method for cuttingInfo
- Publication number
- EP1390179A1 EP1390179A1 EP02766714A EP02766714A EP1390179A1 EP 1390179 A1 EP1390179 A1 EP 1390179A1 EP 02766714 A EP02766714 A EP 02766714A EP 02766714 A EP02766714 A EP 02766714A EP 1390179 A1 EP1390179 A1 EP 1390179A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hose
- cutting
- pressure
- medium inside
- cutting 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.)
- Granted
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
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
- B26D3/164—Cutting rods or tubes transversely characterised by means for supporting the tube from the inside
- B26D3/165—Cutting rods or tubes transversely characterised by means for supporting the tube from the inside by fluid under pressure
-
- 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
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0683—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form specially adapted for elongated articles
Definitions
- the present invention relates to a cutting device for cutting hoses, preferably reinforced hydraulic hoses
- the invention likewise relates to a hose cutting method.
- Patent Specification SE502864 discloses a method of cutting hoses by means of insertion into the hose of a plug of a special design to a position, where the cutting is intended to be carried out. The plug is then severed essentially at its centre into two parts in conjunction with the hose being cut at the desired place.
- the suggested hose-cutting method with the aid of a plug designed for that purpose has the advantage of protecting the inner jacket face of the hose from particles and chips.
- the patent specification discloses one way of forcing the plug to the desired position inside an unrestrained hose by means of a rodlike tool.
- the inventive cutting device allows cleaner cutting of hoses to be made without particles and dust penetrating into and adhering to the inner face of the hose, thanks to it being possible to perform the cutting operation while the hose to be cut is simultaneously subjected to an excess pressure. Owing to the excess air pressure thus applied, dust and particles that form during the cutting operation will instead flow in the direction outwards, out of the hose ends.
- the flow generated by the excess pressure applied inside the hose makes it possible to simultaneously cool the cutting means.
- the medium inside the hose is air.
- the temperature of the air may be regulated to cool the cutting means as desired.
- the cutting device preferably is equipped with a feeder designed to advance the hose up to a cutting point.
- the inventive cutting device is provided with measuring equipment, along which the hose may be displaced to allow the intended length of the hose to be determined in a simple manner before the cutting operation is initiated.
- Connecting means preferably are provided to continuously supply pressure to the medium inside the hose, at least for as long as the hose-cutting operation is in progress.
- Fig 1 is a schematic perspective view of the cutting device .
- Fig 2 is a schematic perspective view of an alternative embodiment of the cutting device.
- the first body 13 has an essentially flat working top 18 extending in a horizontal plane at a suitable working level and onto which top a hose 2 is intended to be advanced preliminary to its being cut.
- Said first body also comprises a cutting means 3, in the shown example in the form of a motor-driven cutting disc 16.
- the cutting disc 16 is mounted on the motor for rotational movement.
- a holder-on member 17 are arranged to be shifted essentially in one plane towards the cutting disc 16 between two extreme positions, one inactive position and one cutting position, not shown in closer detail in the drawing figures.
- the cutting means 3 comprises an abutment member 17 abutting against the hose 2 when the cutting disc 16 penetrates the hose at the intended cutting point.
- the hose 2 is advanced by the feeder 6 in a direction of advancement A, past the cutting point 4 and further on towards the rail 15.
- the measuring unit 12 could be designed as a conventional simple measuring ruler that extends along the path of advancement of the hose or else as a more sophisticated measuring system including transducers, readers and display means for presentation of the measurement values.
- One preferred kind of transducer consists of a measuring wheel, which is read digitally.
- a method is suggested of diverting residual machining fragments generated in conjunction with hose cutting operations, said method comprising the steps of pressurising a medium contained inside the hose to a pressure of between 1 and 100 bars by application onto the hose ends of connecting means 9, which are coupled to at least one source of pressure.
- the source of pressure 8 is a conventional compressor generating a pressure of about 8 bars .
- the hose ends are designed to " Have a complementary engagement fit with their respective connecting means 9, whereby an airtight connection is created at each hose end, allowing a pressure to build up inside the hose in anticipation of the cutting operation.
- the opposite end of the connecting means 9 is connected to its source of pressure via a hose or other suitable means.
- the connecting means 9 may be supplied with a pressurised medium, for example by means of pressurised air, from a common source of pressure 8.
- This drawing figure likewise shows the manner in which a hose reel 20 is arranged to advance considerable lengths of hose 2, for example in a controlled manner.
- the cutting means 1 is provided with safety means of standard type, such as emergency stop means, two-hand control devices, no-voltage circuit breakers and a spring- actuated shield for the cutting disc 16.
- the cutting means 3 need not necessarily have a circular shape as illustrated in the drawings but could be configured in various ways and could for example be a blade-like cutting blade, which is moved in a backwards-forwards movement to cut through the hose 2.
- the cutting means 3 is a water jet or a laser.
- the method of cutting the hose 2 may be implemented by making the cutting device 1 operate in a more or less automated way.
- the stop means 5 is designed with an automated stop function. The automated stop function is triggered off when the hose 2 abuts against the stop means 5.
- the device is for example applicable also to rigid hoses and pipes.
- rigid hoses or pipes When rigid hoses or pipes are used, these should be regarded as included in the concept of hose as referred to herein.
- Further preferred embodiments of the invention thus may be created by providing the cutting device with additional equipment within the scope of what the expert in the field considers to be obvious, such as hose reels for winding-on the hose, not shown in detail as they are well known.
- hose reels for winding-on the hose not shown in detail as they are well known.
- By combining characteristic features of different alternative embodiments of the invention described herein additional possible varieties may be obtained that are within the scope of the inventive idea. It is considered to be within the competence of the expert in the field to choose a compressor, alternatively a pump or other pressure sources to provide suitable embodiments within the scope of the invention.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0101515 | 2001-04-30 | ||
SE0101515A SE518959C2 (en) | 2001-04-30 | 2001-04-30 | Hose cutting device and method |
PCT/SE2002/000822 WO2002087836A1 (en) | 2001-04-30 | 2002-04-26 | Device and method for cutting |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1390179A1 true EP1390179A1 (en) | 2004-02-25 |
EP1390179B1 EP1390179B1 (en) | 2008-04-09 |
Family
ID=20283942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02766714A Expired - Lifetime EP1390179B1 (en) | 2001-04-30 | 2002-04-26 | Device and method for cutting |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1390179B1 (en) |
AT (1) | ATE391589T1 (en) |
DE (1) | DE60226020T2 (en) |
DK (1) | DK1390179T3 (en) |
ES (1) | ES2304449T3 (en) |
SE (1) | SE518959C2 (en) |
WO (1) | WO2002087836A1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT386975B (en) * | 1984-12-07 | 1988-11-10 | Balint Ludwig | METHOD FOR SEPARATING PIPES |
SE502864C2 (en) * | 1995-01-12 | 1996-02-05 | Axel Boerje Pettersson | Device for cutting metal-reinforced hose |
DE19902634A1 (en) * | 1998-10-23 | 2000-04-27 | Alusuisse Lonza Services Ag | Method for removing a slug or the like Waste piece from a work piece, and device therefor |
-
2001
- 2001-04-30 SE SE0101515A patent/SE518959C2/en not_active IP Right Cessation
-
2002
- 2002-04-26 ES ES02766714T patent/ES2304449T3/en not_active Expired - Lifetime
- 2002-04-26 DE DE60226020T patent/DE60226020T2/en not_active Expired - Lifetime
- 2002-04-26 DK DK02766714T patent/DK1390179T3/en active
- 2002-04-26 EP EP02766714A patent/EP1390179B1/en not_active Expired - Lifetime
- 2002-04-26 WO PCT/SE2002/000822 patent/WO2002087836A1/en not_active Application Discontinuation
- 2002-04-26 AT AT02766714T patent/ATE391589T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO02087836A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1390179B1 (en) | 2008-04-09 |
DK1390179T3 (en) | 2008-08-04 |
SE0101515D0 (en) | 2001-04-30 |
WO2002087836A1 (en) | 2002-11-07 |
DE60226020T2 (en) | 2009-06-18 |
DE60226020D1 (en) | 2008-05-21 |
SE0101515L (en) | 2002-10-31 |
ATE391589T1 (en) | 2008-04-15 |
SE518959C2 (en) | 2002-12-10 |
ES2304449T3 (en) | 2008-10-16 |
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