EP1252987A1 - Schneidwerkzeug zur Bearbeitung von Luftreifen - Google Patents
Schneidwerkzeug zur Bearbeitung von Luftreifen Download PDFInfo
- Publication number
- EP1252987A1 EP1252987A1 EP02008627A EP02008627A EP1252987A1 EP 1252987 A1 EP1252987 A1 EP 1252987A1 EP 02008627 A EP02008627 A EP 02008627A EP 02008627 A EP02008627 A EP 02008627A EP 1252987 A1 EP1252987 A1 EP 1252987A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- cutting edge
- cylindrical
- cutting
- grooves
- 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
Images
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
- B26D3/003—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting rubber
-
- 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
- B26D1/44—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 cup or like cutting member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/19—Rotary cutting tool
- Y10T407/1952—Having peripherally spaced teeth
- Y10T407/1962—Specified tooth shape or spacing
- Y10T407/1964—Arcuate cutting edge
- Y10T407/1966—Helical tooth
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/20—Profiled circular tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/309296—Detachable or repositionable tool head
Definitions
- the present invention relates to a tool for machining visco-elastic products; more specifically, it relates to a cylindrical cutting tool for a dethatching and machining of rubber products such as tires.
- tires have a tread made of outer layer of gum mixes, more or less thick, and in which are molded various grooves and sculptures intended, inter alia, to improve the grip of the vehicle on the ground.
- the tires are machined by grinding (see par example WO OO / 15388), but this process causes heating superficial that we sometimes want to avoid; in addition, we sometimes need a very good condition of surface ; a cutting process is then used; usually we rotate the tire around its axis, by moving it towards the tool by a translation of a part of the frame (see for example US 4,036,275).
- the cutting tools used are generally cylindrical, i.e. the cutting edge of the blade is circular, and they are rotatable around their axis so to improve the cut (see for example US 3,426,828).
- the cut material passes to the inside of the cylindrical tool and it is evacuated in the form of a strip more or shorter according to the tire tread; in the case of a tire weight heavy, with longitudinal ribs, the length of this strap can reach several meters and even exceed 15 meters, which poses evacuation problems and can also cause jams.
- the present invention relates to an improved cylindrical cutting tool which ensures automatically cutting the thong of cut material to avoid jams.
- a cylindrical cutting tool for a dethatching or machining machine tires the circular blade of which has a beveled cutting edge and is interrupted by at minus a slot, that is to say a part having a lower axial height than said cutting edge, is characterized in that said cutting edge slot is obtained by means of a groove machined in the cylindrical surface of the tool located on the sharp side of the cutting edge.
- the cutting edge has several slots which separate segments of the cutting edge having substantially the same length, said slots and segments thus being arranged alternately with different axial heights.
- said grooves are distributed circumferentially in a manner regular.
- the circular cutting slots are obtained by machined longitudinal grooves in the cylindrical surface of the tool located on the sharp side of the cutting edge.
- the slots of the circular cutting edge can also be obtained by means of grooves helical machined in the cylindrical surface of the tool located on the sharp side of the edged.
- the angle of the cutting edge of the tool is between 15 and 20 °, and preferably it is substantially equal to 18 ° 30 '.
- the number of said grooves is of the order of 20, and their width is around 5 mm.
- FIG. 1 very schematically shows a machine for machining strips of tire bearing comprising a cutting tool according to the invention.
- This machine comprises a first fixed frame 1 support for a mandrel (not shown) on which is mounted a tire 2.
- the machine also includes a movable frame 3 support for a tool holder 4.
- the frame 3 is fixed to a fixed base 5 by means of two pairs of horizontal rails 6 and 7.
- the rails 6 are oriented perpendicular to the axis of rotation 8 of the tire and allow a translational movement of the frame 3 to bring it closer or away from the tire 2.
- the rails 7 are oriented parallel to the axis of rotation 8 of the tire 2 and allow a displacement of translation of the frame 3 parallel to this axis of rotation of the tire 2.
- the combination of these two translational movements allows the cutting tool to follow all the usual tire profiles.
- the frame 3 also makes it possible to vertically move the tool holder 4 by means not shown.
- the machine also includes means (not shown) for rotating the tire 2, for reversing its direction of rotation, as well as to control the movements of the mobile frame 3 and the position vertical of the tool holder 4.
- the tool holder 4 is intended to hold a cutting tool comprising two tools cylindrical cutting 19 and 20.
- a cutting tool comprising two tools cylindrical cutting 19 and 20.
- the tool holder 4 can tilt horizontally around the axis 25 to bring the cutting edge of the tool 20 into contact with the tire 2 and, if necessary, allow careful deburring of the tire tread 2.
- the machine shown in Figure 1 can use cutting tools 19 and 20 cylindrical. It can also advantageously use tools according to the invention such as described below.
- Figures 2 and 3 show in top view, cutting edge, ( Figure 2) and in view of side ( Figure 3) a first embodiment of a tool 30, similar to tools 19 and 20, according to the invention.
- This tool 30 has a generally cylindrical shape, that is to say that the cutting edge 31 of its blade is circular.
- the diameter of the tool 30 is 150 mm, and the bevel of the cutting edge 31 forms with the axis A of the tool 30 an alpha angle substantially equal to 18 ° 30 '.
- the cutting edge 31 has, in the example described, its sharp side on the cylindrical surface outside 32 of the tool 30.
- this surface 32 is machined so as to present a certain number of grooves, such as 33, 34, 35, distributed circumferentially by a regularly; these grooves open, at the cutting edge 31, by slots, such as 36, 37, 38, which separate segments, such as 39, of the cutting edge having the same length.
- each groove and therefore each slot has a width of 5 mm.
- the sharp side of the cutting edge is on the surface inner cylindrical of the tool; the grooves are then machined on the same surface interior, and they emerge, at the cutting edge, with slots regularly distributed, according to the invention.
- the axial length of the grooves such as 33, 34, 35 is not necessarily identical to that of tool 30, but with a view to successive sharpening of the cutting edge, the man of the trade chooses the length which seems the most economical to it.
- Figure 4 shows a side view of a variant 40 of the cutting tool according to the invention.
- the grooves 43 are helical instead of being axial.
- Each slot 44 thus has inclined edges instead of being normal as in the case of tool 30. This provides a leading edge and trailing edge effect of the cutting edge. 41 of tool 40. This effect can facilitate the cutting of cut strips.
- the strap of material which has just been cut by a segment of the cutting edge of the tool is no longer cut by the next slot, which exerts traction on the strap due to relative movements of the tire and the tool; this pull on the strap causes automatically cutting it into much shorter pieces, which removes the risk of jamming at the cutting tool.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Turning (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0105781 | 2001-04-26 | ||
FR0105781A FR2824008A1 (fr) | 2001-04-26 | 2001-04-26 | Outil d'usinage de pneumatiques |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1252987A1 true EP1252987A1 (de) | 2002-10-30 |
EP1252987B1 EP1252987B1 (de) | 2004-06-30 |
Family
ID=8862833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02008627A Expired - Lifetime EP1252987B1 (de) | 2001-04-26 | 2002-04-17 | Schneidwerkzeug zur Bearbeitung von Luftreifen |
Country Status (6)
Country | Link |
---|---|
US (1) | US6890130B2 (de) |
EP (1) | EP1252987B1 (de) |
JP (1) | JP4404522B2 (de) |
AT (1) | ATE270173T1 (de) |
DE (1) | DE60200675T2 (de) |
FR (1) | FR2824008A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3106254A1 (de) * | 2015-06-08 | 2016-12-21 | NLB Engineering Limited | Ringförmiger schneider |
GB2570884A (en) * | 2018-02-07 | 2019-08-14 | C4 Carbides Ltd | Cutting accessories for power tools |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7101262B2 (en) * | 2003-11-12 | 2006-09-05 | Hilicus Sr Herbert C | Apparatus and methods for texturizing tread surfaces of tires |
WO2008066533A2 (en) * | 2006-11-30 | 2008-06-05 | Societe De Technologie Michelin | Retread preparation |
CN106141265A (zh) * | 2015-03-31 | 2016-11-23 | 青岛软控精工有限公司 | 轮胎模具花纹块立面加工工装及铣立面方法 |
CN114559495A (zh) * | 2022-03-28 | 2022-05-31 | 中船黄埔文冲船舶有限公司 | 一种用于加工护舷轮胎的开孔刀具及其使用方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3426828A (en) * | 1966-04-11 | 1969-02-11 | Peter C Neilsen | Tire tread cutting apparatus and method |
US3831236A (en) * | 1972-01-07 | 1974-08-27 | Coburn Optical Ind | Cup-shaped cutting tool having cutting teeth |
US4036275A (en) * | 1974-04-12 | 1977-07-19 | Branick Charles E | Tire stripping apparatus |
US5054971A (en) * | 1989-02-17 | 1991-10-08 | Entwicklungszentrum Fur Zerspanungstechnik | Apparatus for removing damaged portions of rubber components |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2132835A (en) * | 1936-07-08 | 1938-10-11 | Firestone Tire & Rubber Co | Cutter |
BE788401A (fr) * | 1971-12-29 | 1973-03-05 | Hougen Everett D | Outil rotatif a decouper |
DE3822249A1 (de) * | 1988-07-01 | 1990-01-04 | Hilti Ag | Hohlbohrwerkzeug |
US5791837A (en) * | 1996-08-16 | 1998-08-11 | Johnson; Samuel | Annular tool for cutting holes in metal |
US6062950A (en) | 1998-09-16 | 2000-05-16 | Bridgestone/Firestone, Inc. | Dual wheel tire grinder |
-
2001
- 2001-04-26 FR FR0105781A patent/FR2824008A1/fr active Pending
-
2002
- 2002-04-17 AT AT02008627T patent/ATE270173T1/de not_active IP Right Cessation
- 2002-04-17 DE DE60200675T patent/DE60200675T2/de not_active Expired - Lifetime
- 2002-04-17 EP EP02008627A patent/EP1252987B1/de not_active Expired - Lifetime
- 2002-04-25 US US10/132,622 patent/US6890130B2/en not_active Expired - Lifetime
- 2002-04-26 JP JP2002163567A patent/JP4404522B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3426828A (en) * | 1966-04-11 | 1969-02-11 | Peter C Neilsen | Tire tread cutting apparatus and method |
US3831236A (en) * | 1972-01-07 | 1974-08-27 | Coburn Optical Ind | Cup-shaped cutting tool having cutting teeth |
US4036275A (en) * | 1974-04-12 | 1977-07-19 | Branick Charles E | Tire stripping apparatus |
US5054971A (en) * | 1989-02-17 | 1991-10-08 | Entwicklungszentrum Fur Zerspanungstechnik | Apparatus for removing damaged portions of rubber components |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3106254A1 (de) * | 2015-06-08 | 2016-12-21 | NLB Engineering Limited | Ringförmiger schneider |
GB2570884A (en) * | 2018-02-07 | 2019-08-14 | C4 Carbides Ltd | Cutting accessories for power tools |
Also Published As
Publication number | Publication date |
---|---|
EP1252987B1 (de) | 2004-06-30 |
ATE270173T1 (de) | 2004-07-15 |
JP2003025464A (ja) | 2003-01-29 |
DE60200675D1 (de) | 2004-08-05 |
DE60200675T2 (de) | 2005-06-30 |
US20020166642A1 (en) | 2002-11-14 |
FR2824008A1 (fr) | 2002-10-31 |
US6890130B2 (en) | 2005-05-10 |
JP4404522B2 (ja) | 2010-01-27 |
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