EP2981627A1 - A method for cutting leathers - Google Patents
A method for cutting leathersInfo
- Publication number
- EP2981627A1 EP2981627A1 EP14727908.7A EP14727908A EP2981627A1 EP 2981627 A1 EP2981627 A1 EP 2981627A1 EP 14727908 A EP14727908 A EP 14727908A EP 2981627 A1 EP2981627 A1 EP 2981627A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leather
- profile
- cut
- article
- cutting
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B5/00—Clicking, perforating, or cutting leather
Definitions
- the present invention relates to the technical sector of leather-working.
- the present invention relates to a method for cutting leathers. DESCRIPTION OF THE PRIOR ART
- Leather articles, for example footwear are known to be usually made by cutting the parts to be assembled starting from large-dimension leathers, which generally exhibit an irregular shape.
- an automatic cutting machine comprising a horizontal work plane, permeable to air, on which the leathers to be cut are arranged.
- the machine comprises an aspirating source, arranged below the work plane, activatable so as to maintain the leathers stretched and still once arranged on the work plane.
- a processor associated to the machine, detects the perimeter of the leather to be cut, and on the basis of this determines the "placing" of the articles to be obtained.
- the optimal arrangement of the articles to be cut is determined on the leather, so as to occupy the greatest possible surface thereof, thus minimizing waste and preventing the profiles of the articles to be obtained from superposing on one another.
- This arrangement is displayed on a monitor and controlled by an operator: the operator is able to identify any defects present on the leather and prevent the profiles of the articles to be obtained from being arranged at the detected defects.
- the projector device associated to the processor projects a light beam containing the profiles of the articles to be obtained on the leather.
- the machine is provided with a cutting head, borne by a mobile carriage above the work plane and to which a precision tool is fitted (or cutting blade) so as to cut the leather at the profiles of the articles projected on the leather.
- the articles thus-obtained are removed from the work plane and another leather to be processed can be arranged thereon.
- the aim of the present invention is to obviate the above-mentioned drawbacks.
- the method of the present invention advantageously enables a significant reduction in costs and total times associated to the cutting of leathers for obtaining articles.
- the disclosed method means that the leather-cutting operations do not require the presence of specialized labour; the cut is done by punching, and the operator already has, represented on the leather, precise indications on how the cut is to be performed.
- the punches are usually present in the sector of leather-working, and therefore the disclosed method enables using tools already available, without having to make further investments.
- punch is meant the tool, usually made of steel, with the relative cutter describing a closed line, used for cutting profiles outlined on leathers or other material, by pressing the punch thereon.
- FIG. 2 illustrates a step of identifying a profile of articles to be obtained on the leather to be cut, according to the disclosed method
- FIG. 3 illustrates a tracing step of the profile of articles to be obtained on the leather to be cut, according to the proposed method
- FIG. 4 illustrates a cutting step of the leather by means of manual punching for obtaining articles according to the disclosed method.
- the method for cutting leathers for obtaining at least an article comprises, in succession, steps of: positioning the leather 1 to be cut on a work plane 3 (see figure 1); identifying on the leather to be cut a profile 20 of at least an article 2 to be obtained (see figure 2).
- the method further comprises, in succession, steps of: tracing on the leather 1 to be cut the profile 20 of at least an article to be obtained that has been identified (see figure 3, in which the profiles 20 are represented with broken lines); transferring the leather 1 to be cut on which the profile 20 of at least an article to be obtained has been traced to a remote manual cutting station 4; cutting the leather 1 by punch 5 at the traced profile 20, so as to obtain the article 2 (see figure 4).
- the method disclosed advantageously enables a considerable reduction on all costs associated with cutting leathers which have to be supported with the known methods.
- the punch 5 i.e. the closed line that the cutter defines
- the punch 5 will therefore exhibit a conformation such as to coincide with the profile 20 of the article 2 to be obtained.
- the punch 5 is positioned manually by the operator doing the cutting on the leather 1 (arranged on a plane) so that the cutter of the punch 5 is at the traced profile 20 on the leather 1. Therefore, the operator acts on a presser element 9 positioned above the plane on which the leather 1 rests, so as to exert a pressure on the underlying punch 5 and cut the leather 1 so as to obtain the article 2.
- the punch 5 might be removably fixed to the presser element 9.
- punches 5 enables reducing cutting times significantly with respect to the prior art, increasing productivity in terms of articles realised (i.e. cut out) in a reference time period (for example a work shift).
- the punches 5 not only have particularly low cost with respect to the tools of automatic machines for cutting leathers used at present; they also already exist in the industry of leather-cutting.
- the punches 5 are also available in multiple formats, dimensions and conformations, according to requirements.
- the manual cutting station 4 can also be very far from the place where the tracing of the profiles 20 on the leather 1 is done (for example it can be in a different works), without there being any need for information-technology connections and/or last-generation technologies for information transfer. All the operator performing the cutting has to know is already traced and therefore well-visible on the leather 1.
- the leather 1 to be cut can be arranged on a horizontal work plane 3, permeable to air, below which an aspirating source is positioned (not illustrated), activatable to maintain the leather 1 stretched and still on the work plane 3.
- the step of tracing, on the leather 1 to be cut, the profile 20 of at least an article 2 to be obtained is realised by means of a plotter 6 (see figure 3).
- a plotter 6 see figure 3
- This enables further minimising the total costs and the times required for obtaining an article 2; the plotter 6 is not only economical but also particularly rapid in tracing the profiles 20 on the leather 1.
- the plotter 6 can be of the multi-head type, enabling a high productivity with respect to what is guaranteed using known methods.
- erasable ink can be used, or a UV ink (or in any case any type of ink). If UV ink is used, the operator cutting the leather 1 will be equipped with special goggles for detecting the profiles 20 traced on the leather 1 (situation not illustrated).
- the step of tracing the profile of at least an article 2 to be obtained on the leather 1 can be realised using a laser (this variant is not illustrated). This guarantees a greater tracing precision of the profile 20.
- the tracing of the profile 20 of at least an article 2on the leather 1 can consist of an incision.
- the plotter 6 or the laser can be advantageously borne by a carriage 8 acting on the work plane 3, as can be seen in figure 3.
- the step of tracing the profile 20 of each article 2 to be obtained on the leather 1 is done in such a way that each profile 20 is in practice displaced externally with respect to the effective outline (i.e. the surface) of the corresponding article 2 to be obtained.
- This specification takes account of the thickness of the punch 5 (in particular the cutter thereof), in such a way that following the cutting step the articles 2 are not under-dimensioned, but exhibit the desired dimensions.
- the perimeter of the leather 1 to be cut is acquired (i.e. scanned), once the leather 1 has been arranged on the work plane 3, by means of use of a processor.
- the "placing" of the articles 2 to be obtained is mapped out, i.e. the optimal arrangement of the articles 2 to be cut from the leather 1 is determined, minimizing waste and at the same time preventing the profiles 20 of the articles 2 to obtained from overlapping one another.
- This arrangement is displayed on a monitor 7 (see figure 2) and controlled by an operator: the operator is able to identify any defects present on the leather 1 and prevent the profiles 20 of the articles to be obtained from being arranged in positions where defects have been detected.
- the processor takes account of the displacement of the profile 20 of each article 2 with respect to the effective outline thereof.
- the step of identifying, on the leather 1 from which the profile 2 is to be cut, at least an article 1 to be obtained, can comprise the sub-step of projecting the profile 20 on the leather 1 by means of a light beam (for example a matrix or laser projector, a situation that is not illustrated).
- the sub-step might not be included, and the profile 20 of the identified article 2 (and displayed for example on the monitor 7) might not be projected onto the leather 1 to be cut; the step of tracing the profile 20 of the article 2 on the leather 1 can thus be done directly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000143A ITBO20130143A1 (en) | 2013-04-02 | 2013-04-02 | METHOD FOR LEATHER CUTTING |
PCT/IB2014/060269 WO2014162249A1 (en) | 2013-04-02 | 2014-03-28 | A method for cutting leathers |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2981627A1 true EP2981627A1 (en) | 2016-02-10 |
Family
ID=48485259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14727908.7A Withdrawn EP2981627A1 (en) | 2013-04-02 | 2014-03-28 | A method for cutting leathers |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2981627A1 (en) |
CN (1) | CN105102639A (en) |
BR (1) | BR112015024495A2 (en) |
IT (1) | ITBO20130143A1 (en) |
MX (1) | MX2015009965A (en) |
WO (1) | WO2014162249A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108247218A (en) * | 2018-01-25 | 2018-07-06 | 海宁鼎达纺织有限公司 | A kind of large-scale cutter device of leather production |
US20220282344A1 (en) * | 2020-09-23 | 2022-09-08 | Jbs S/A | Method and table for cutting raw leather with optimized geometry |
CN113954161A (en) * | 2021-09-27 | 2022-01-21 | 东风延锋汽车饰件系统有限公司 | Method and device capable of cutting light-transmitting surface skin in multiple layers |
CN113954174A (en) * | 2021-09-27 | 2022-01-21 | 东风延锋汽车饰件系统有限公司 | Cutting method of light-transmitting surface skin |
CN115302903A (en) * | 2022-07-15 | 2022-11-08 | 东风汽车集团股份有限公司 | Method for manufacturing soft light-transmitting cladding piece containing customized pattern |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3627110A1 (en) * | 1986-08-06 | 1988-02-18 | Duerkopp System Technik Gmbh | METHOD AND DEVICE FOR OPTIMIZING A MATERIAL CUT |
HUT74049A (en) * | 1994-04-23 | 1996-10-28 | Stahl | Method for treating of technical textile material and leather and apparatous thereof |
DE19522717C1 (en) * | 1995-06-22 | 1996-12-12 | Duerkopp Adler Ag | Process for cutting or punching individual parts from an animal skin |
DE10212284A1 (en) * | 2002-03-20 | 2003-10-02 | Guenter Grosmann | Robotic leather cutting assembly has number of punch-operated knife blades linked to computer cutting profile for leather upholstery and clothing |
DE102007050270A1 (en) * | 2007-10-18 | 2009-04-23 | Bruder, Wolfgang, Dipl.-Ing. | System for punching blank parts |
WO2009105893A1 (en) * | 2008-02-28 | 2009-09-03 | Ontario Die International Inc. | Systems and methods for real-time monitoring of die use or yield |
CN101586171B (en) * | 2008-05-23 | 2012-11-21 | 东莞市爱玛数控科技有限公司 | Leather cutting machine |
CN101660009B (en) * | 2009-09-21 | 2013-02-13 | 东莞市爱玛数控科技有限公司 | Cutting method of leather materials and skiving machine for implementing same |
-
2013
- 2013-04-02 IT IT000143A patent/ITBO20130143A1/en unknown
-
2014
- 2014-03-28 CN CN201480019922.5A patent/CN105102639A/en active Pending
- 2014-03-28 EP EP14727908.7A patent/EP2981627A1/en not_active Withdrawn
- 2014-03-28 BR BR112015024495A patent/BR112015024495A2/en not_active IP Right Cessation
- 2014-03-28 MX MX2015009965A patent/MX2015009965A/en unknown
- 2014-03-28 WO PCT/IB2014/060269 patent/WO2014162249A1/en active Application Filing
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014162249A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN105102639A (en) | 2015-11-25 |
ITBO20130143A1 (en) | 2014-10-03 |
BR112015024495A2 (en) | 2017-07-18 |
WO2014162249A1 (en) | 2014-10-09 |
MX2015009965A (en) | 2016-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014162249A1 (en) | A method for cutting leathers | |
CN204075346U (en) | A kind of swarf machine | |
US8893533B2 (en) | Machine for cutting leathers | |
CN105377461A (en) | Machine for bending metal products and corresponding bending method | |
CN116214634A (en) | Die cutting method and system | |
EP3126532B1 (en) | Method for marking references on a flat article and related system | |
CN205238179U (en) | Gilt ftercompction material of gilding press cuts ware | |
CN105034217A (en) | Cutting device used for metal product machining process | |
CN211941196U (en) | Full-automatic die-cut data plate product production line | |
CN205310408U (en) | Plastics side cut device that punches | |
CN102389921A (en) | Panel stamping and bending process of control cabinet | |
CN107520544A (en) | A kind of laser cutting machine and laser cutting streamline | |
CN204640343U (en) | A kind of guillotine cuts cutter head laser locating apparatus | |
CN203817633U (en) | Glue laser transverse-cutting and longitudinal-cutting device | |
CN103949942B (en) | Numerical control stamping scissors tool grinding clamp | |
CN105479181A (en) | Machining process for metal pipes with punched holes | |
CN110576467A (en) | Cloud projection typesetting system of cutting machine | |
CN201172230Y (en) | Cutting device for sealing part | |
CN104923644A (en) | Punching device with thin film positioning and ultrasonic wave crack detection functions and method thereof | |
CN105835099A (en) | Edge cutting device | |
CN206634267U (en) | The film cutting apparatus of laminator | |
CN207681929U (en) | A kind of novel intelligent numerical control machine for Ultra-precision Turning | |
CN205874458U (en) | Leather edging machine | |
CN105642742A (en) | Punching device for micromotor mounting plate based on crack detection and film positioning | |
KR101914437B1 (en) | Contact trimming cutter apparatus of topping sheet side |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20151026 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20161026 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20170518 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20170929 |