Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
  • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
  • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
  • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
  • B21D45/006—Stripping-off devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
• • 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
  • B26D7/18—Means for removing cut-out material or waste
• • 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
  • Y10T83/00—Cutting
  • Y10T83/202—With product handling means
  • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
  • Y10T83/2096—Means to move product out of contact with tool
  • Y10T83/2135—Moving stripper timed with tool stroke
  • Y10T83/215—Carried by moving tool element or its support
  • Y10T83/2155—Stripper biased against product
• • 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
  • Y10T83/00—Cutting
  • Y10T83/202—With product handling means
  • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
  • Y10T83/2096—Means to move product out of contact with tool
  • Y10T83/2135—Moving stripper timed with tool stroke
  • Y10T83/215—Carried by moving tool element or its support
  • Y10T83/2155—Stripper biased against product
  • Y10T83/2157—Elastomeric stripper contacting product
• • 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
  • Y10T83/00—Cutting
  • Y10T83/202—With product handling means
  • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
  • Y10T83/2096—Means to move product out of contact with tool
  • Y10T83/2135—Moving stripper timed with tool stroke
  • Y10T83/215—Carried by moving tool element or its support
  • Y10T83/2155—Stripper biased against product
  • Y10T83/2159—By spring means
• • 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
  • Y10T83/00—Cutting
  • Y10T83/929—Tool or tool with support
  • Y10T83/9457—Joint or connection
  • Y10T83/9473—For rectilinearly reciprocating tool
  • Y10T83/9476—Tool is single element with continuous cutting edge [e.g., punch, etc.]

Definitions

• the invention relates to a scraper device for use with a cutting tool with a cutting element, in particular a punch, for machining a workpiece, in particular a bent sheet metal, wherein at least one fastening piece for fastening to the cutting tool, a resilient element arranged outside the workpiece contact area wiping element coming into contact with the workpiece and surrounding the cutting element and at least one guide element guiding the wiping element are provided.
• Scraper devices are known in connection with various types of cutting tools (DE 19605113 AI, DE 4035938 AI, DE 4235972 AI and WO 99/67038 AI).
• a stripping device is required in order, in particular in the case of punches or other cutting elements, to enable the machined workpiece, in particular sheet metal, to be stripped from the cutting element, in particular punches.
• a front surface of the scraper lies against the surface of the workpiece, deflects somewhat during the penetration of the workpiece through the punch and when the cutting tool is withdrawn from the workpiece, so that the e.g. Punch is ensured from the workpiece.
• wiper models are available on the market. Most have a mounting plate, by means of which they can be attached to the cutting tool, in particular a punch mounting plate.
• the wiper body consists, for example, as a rubber spring made of a hard plastic, the front surface of which is designed according to the workpiece contour. The shaping can be done by Cropping done. The rubber spring surrounds the punch on all sides. The. In most cases, the shape of the front surface of the scraper is not symmetrical, since the workpiece to be machined usually has an irregular shape.
• a wiper device for use with a punch for processing a flat flat sheet in which an outer element is fastened to a specially designed holding plate of a cutting tool by means of screws and bolts.
• the inside of the outer element is provided with a longitudinal opening into which a stripping element and the punch are inserted.
• a resilient element in the form of a helical spring is inserted between the stripping element, the outer element and the punch.
• the stripping element has a substantially straight section and a projecting section, which can be supported on a projection within the longitudinal opening of the outer element or is held on to it, in order not to be inadvertently pushed out of the element.
• US 1,723,935 discloses a structure of a stripping device similar to that of the above publication. Just like this, US 1,723,935 also uses a helical spring which is arranged within an outer guide sleeve between the punch, the stripping element and a special fastening device for fastening to the cutting tool.
• the outer guide sleeve is screwed onto a fastening piece, which is fastened to a further fastening piece, which is connected via a flange to the cutting tool via a screw connection.
• US 4,993,295 discloses a stripping device for use with a punch for machining a flat sheet, in which, as in US 1,723,935, guide surfaces between an outer guide sleeve and a stripping element are relatively short, so that the stripping element can tilt within the guide sleeve under higher loads.
• Various disc springs are provided as a spring-elastic element, which are stacked on top of one another within the guide sleeve in such a way that curved surfaces face each other.
• a punch is located within the resilient element.
• the scraper fer also has the task of keeping the workpiece in the desired shape during the machining process. This is particularly important when punching is to be carried out in the area of sheet metal edges, since it is easy there due to the punching process
• DE 812498 discloses a stripping device for a punch with a helical spring which is arranged between a stripper plate and a punch head.
• the coil spring surrounds the area of the punch.
• FR 1456310 discloses a stripping device which in one embodiment comprises a coil spring and in another an elastic element which is inserted between two fixed plates.
• a screw bolt is arranged between the two fixed plates, similarly as is provided by the strips in DE 812498 for the stable connection of the two plates. The bolts can also prevent the plates from twisting against each other.
• a spring-loaded steel wiper is also known from Dayton Progress GmbH.
• An anti-rotation device for the punch is formed in that the punch is in one
• Partial area is constricted in cross section and flattened rectangular. A portion of the scraper engages in this area and is attached to the steel scraper by means of screws.
• the present invention is therefore based on the object of providing an improved scraper device which is stable, in particular in which an anti-rotation device in the range of a hundredth of a millimeter is possible and one-sided thrust forces can be eliminated.
• high stroke rates of in particular more than 1 million strokes in particular the durability and stability compared to the stripping devices of the prior art, should be possible, especially for use in the automotive industry.
• the stripping device should also be relatively inexpensive and as small as possible.
• it is preferably loaded centrically and without any oments, which also prevents uneven wear or stress. This enables the spring-elastic element to last for more than 1 million strokes. Due to the use of a manageable number of individual parts which, when inserted into one another, result in the stripping device, it is more robust than the stripping devices of the prior art.
• a guide element preferably of guide sleeves or guide bushes
• a reproducible movement of the stripping device relative to the cutting tool or the cutting element, in particular a punch is also advantageously possible.
• guiding through columns is no longer necessary, as is required with numerous wipers of the prior art, in order to enable a firm attachment in the cutting tool.
• Such columns are intended, in particular, to absorb transverse forces which occur during the cutting process and which can twist or shift the scraper.
• a more cost-effective solution is created than, for example, in the case of the conventional manually built steel scrapers of the prior art. This is made possible in particular by the fact that the manufacturing effort is very much less than with these products.
• Arranging the resilient element outside the workpiece contact area has various advantages.
• the resilient element does not constantly come into contact with oils and greases, which gradually attack and destroy it.
• the contact of the workpiece with the stripping element instead of the spring-elastic element creates an essentially rigid contact surface, which enables the workpiece to be kept in shape and, conversely, is not deformed by the workpiece.
• the stripping element is therefore particularly preferably made of bronze or another material which can be adapted to the workpiece surface shape and which is strong enough not to be deformed by the workpiece during the machining process.
• such a material is chosen with which it is possible to individually shape the stripping element with respect to its front surface shape in order to adapt it to the workpiece to be cut.
• the resilient element is preferably a rubber spring or preferably consists of another resilient, restoring and / or resilient material. When using a rubber spring, fatigue fracture, for example of a coil spring, can be avoided.
• the device for securing against rotation preferably comprises a stripping element with an irregular cross-section and / or an elongated hole or polygonal hole in the guide element. It proves to be particularly advantageous if the device for securing against rotation has a pair of wiping element and hole or opening in the guide element that is asymmetrically formed at least in one orientation to ensure unambiguously oriented installation of the wiping element, in particular an elongated hole with three straight and one curved side and a correspondingly designed stripping element.
• the exact position of the stripping element does not have to be determined first, but rather through the shape of the stripping element and the opening in the guide element, preferably the guide sleeve or guide bush, and the preferred provision of inner and outer guide surfaces on the Scraper element is specified.
• a faster, easier and more precise assembly of the stripping device on the cutting tool is thus possible than is possible with the stripping devices of the prior art.
• this also prevents damage to the workpiece to be punched.
• holes are to be provided in the lower region of vehicle doors according to their three-dimensional shape, the punching of which is not possible with the above-described prior art devices without damaging the door profile, since neither there Protection against rotation is also provided, an adaptation of the shape of the front surface area of the stripping element to that of the door profile is provided.
• the resilient element is preferably arranged between the stripping element or guide element and cutting tool and / or within the guide element. This avoids contact of the resilient element with the workpiece.
• the resilient element is held firmly in the stripping device. This enables a uniform load that keeps the wear of the spring-elastic element as low as possible.
• a defined position of the resilient element is determined, and it can also be replaced at any time if it is worn.
• the stripping element and the spring-elastic element surrounding the cutting element are oriented such that they can be loaded essentially without torque and in particular centrally. This advantageously prevents uneven wear and tilting of the resilient element and the stripping element.
• a reproducible position of the resilient element is specified, in particular in the case of replacement, so that an exchange can take place quickly and without problems.
• At least one guide sleeve is preferred as a guide element outside the stripping element; this is arranged at least partially in a leading manner and / or at least one guide bush is arranged as a guide element within the wiping element in a guiding manner.
• a guide element By providing a guide element, a guiding of the stripping element is created, which enables a defined movement of the stripping element along the cutting element, in particular a punch.
• the stripping element has on its inside facing an inserted cutting element, in particular to its shaft, preferably at least one guide surface. As a result, the stripping element can also be guided along the cutting element, in particular along its shaft. An internal and external guidance of the stripping element is thus possible. Tilting, as occurs in particular in the case of rubber springs of the prior art, no longer has to be feared. Rather, the exact movement is retained even after more than 1,000,000 strokes.
• the stripping element preferably has a substantially straight section and a projecting section, guide surfaces being provided on the straight and the projecting section of the stripping section. At least one guide surface is preferably provided between the stripping element and the guide element, the length of which can be selected as a function of the forces acting on the stripping device, in particular thrust and lateral forces, in order to ensure tilt-free guidance.
• the provision of a straight and a cantilevered part of the stripping element provides an even better protection against tilting relative to the cutting element and the guide element, since two guide surfaces are provided, which are in particular arranged at a distance from one another.
• the respective length of the guide surface or guide surfaces can be selected depending on the forces acting on the stripping device. In this case, a longer guide surface is preferably selected if the forces that occur are higher.
• a lubricant in particular a lubricant suitable for maintenance-free lubrication, in particular a solid lubricant, is preferably provided at least in a partial region of the straight part of the wiping element.
• the use of a solid lubricant proves to be particularly advantageous when pairing bronze and hardened steel for the individual sliding elements.
• Solid lubricant is particularly suitable for a combination of oil and graphite.
• the provision of, in particular, maintenance-free lubrication is not provided in the prior art, for example US 2,168,377, US 1,723,935 and US 4,993,295. Lubrication of the surfaces sliding into one another can only be accomplished there by dismantling the entire device. Maintenance-free lubrication proves to be advantageous due to the poor accessibility of the lubrication points and the otherwise long service life of the wiper device.
• the guide element is preferably formed in one piece with the fastening piece or the guide element and fastening piece are designed as elements that can be joined together.
• a one-piece design is particularly suitable for higher forces, since in this case there is no need to fear an undesired tilting of the guide element and fastening piece into one another. The stability and compactness of the stripping device is increased.
• the formation of the guide element and the fastening piece is suitable as elements that can be joined together, in particular with lower forces. In this way, in particular, only one fastening with only one fastening means, in particular a screw, can advantageously be selected.
• the fastening piece can thus be made smaller and thus more space-saving.
• At least one projecting area and / or projecting section is or is particularly preferably provided on the circumference or edge of the fastening piece for gripping around a fastening device of the cutting tool.
• the fastening piece can be centered on the fastening device, in particular a fastening plate. Secure and centered attachment or locking of the stripping device to the cutting tool or its Fastening device is thereby also possible using only a single fastening means, in particular a screw.
• the stripping device is particularly preferably used together with a wedge drive, since with such a not only particularly high forces can be transmitted, but this must also be done particularly precisely.
• the anti-rotation device is in the hundredth of a millimeter range, which cannot be achieved with the wiping devices of the prior art.
• Figure 1 is a schematic diagram of a built in a cutting tool
• FIG. 2 is a sectional view of a first embodiment of a stripping device according to the invention
• Figure 3 is a 90 ° rotated sectional view through the
• FIG. 4 shows a top view of the scraper device according to FIG. 2
• FIG. 5 shows a longitudinal section of a second embodiment of a scraper device according to the invention for use in the case of medium-level forces
• FIG. 6 shows a top view of the embodiment according to FIG. 5,
• FIG. 7 is a longitudinal sectional view rotated by 90 ° of FIG.
• FIG. 8 is a plan view of a further embodiment of a stripping device according to the invention with a rotated by 90 ° compared to the embodiment in Figure 6
• FIG. 9 shows a longitudinal sectional view of a further embodiment of a scraper device according to the invention for strong occurring forces
• FIG. 10 shows a longitudinal sectional view of the stripping device according to FIG.
• FIG. 9 and FIG. 11 a top view of the stripping device according to FIG. 9.
• FIG. 1 shows a basic sketch of a cutting tool 1 in the area of the detail of a punch 2 with surrounding stripping device 3.
• the stripping device 3 is fastened to a fastening plate 5 of the punch via a fastening plate 4.
• the mounting plate 5 is in turn mounted on the cutting tool 1.
• the mounting plate 5 has a standardized shape.
• Figure 1 the situation is shown in which the punch punch punched through a sheet 6 as a workpiece to be machined.
• the sheet lies against a front surface 7 of the stripping device 3 during the punching process.
• the hole punch dips into a counter punch 8 after the sheet has penetrated.
• the section punched out of the sheet falls through a through opening 9 provided in the counter-punch into a collecting container (not shown).
• the stripping device has a front surface shape corresponding to the sheet metal shape.
• the sheet is supported during the punching process and is not deformed at the same time.
• the shape of the front surface of the stripping device can be carried out on site at the respective user.
• the stripping device can be designed differently, as shown individually in the following figures.
• FIGS. 2 to 4 indicate an embodiment which is more suitable for lower forces
• FIGS. 5 to 8 an embodiment which is suitable for stronger forces
• FIGS. 9 to 11 a variant which is suitable for high forces Forces is suitable.
• the front surfaces of the stripping devices can be designed correspondingly differently.
• FIG. 2 shows a longitudinal sectional view of a first embodiment of the stripping device 3.
• the stripping device 3 is fastened to the fastening plate 5 of the cutting tool via the fastening plate 4, as can be better seen in particular in FIG. 3. In this embodiment, this is done only by means of an indicated screw 10, better seen in FIG.
• the fastening plate 4 fastens a guide sleeve 11 of the stripping device.
• the fastening plate 4 protrudes inwards in its upper region and overlaps a section 12 of the guide sleeve inserted into the fastening plate, which protrudes below.
• FIG. 2 shows a longitudinal sectional view of a first embodiment of the stripping device 3.
• the projecting section 12 is provided only along a partial area of the circumference of the guide sleeve. This is sufficient to hold the guide sleeve and to prevent it from tipping.
• the guide sleeve is designed without a projecting part, as is also in the area offset by 90 °, which can be seen on the left in FIG. 4. This enables the guide sleeve to be displaced by 90 ° within the fastening plate.
• An elongated hole 14 provided in an upper end plate 13 of the guide sleeve which can alternatively be a polygonal hole, can also be offset by 90 °, which is advantageous in certain applications proves that fewer different stripping devices have to be provided as a result.
• the guide sleeve 11 is essentially cylindrical and in its upper region with that which is essentially perpendicular to the lateral surface of the. Guide sleeve extending end plate 13 with slot 14.
• a stripping element 15 is arranged within the guide sleeve and the elongated hole. The stripping element 15 is guided and slidable within the guide sleeve. This is made possible by providing a lubricant 16, in particular a solid lubricant.
• the stripping element has a straight section 17 and a projecting section 18.
• the lubricant 16 is provided in the area of the straight part 17.
• the cantilevered section 18 extends substantially up to the inner surface 19 of the guide sleeve and is slidably guided on this guide surface. As can be seen in particular from FIG. 3, the projecting section 18 is not provided over the entire circumference of the stripping element 15, but rather only along the long sides.
• the straight section therefore has a different wall thickness, as can be seen in FIGS. 2 and
• the elongated hole and the stripping element have an irregular cross section. This is characterized by three straight sides 141, 142, 143 and a curved side 144. Corner transitions 145, 146, each provided with radii, are formed between the two long straight sides 141, 142 and the short straight side 143. Due to this irregular and at least partially asymmetrical design of the cross sections, the correct orientation can be ensured when installing the stripping element, with quick and easy installation. In addition, comparatively large areas are advantageously provided on the stripping element for absorbing forces when generating an anti-rotation device.
• a resilient element 21 for example in the form of a rubber spring, is provided adjoining the projecting section 18 on its underside 20. This surrounds, like the wiping element 15, the punch. In contrast to the stripping element, however, it is arranged concentrically with essentially the same wall thickness around the punch.
• a retaining washer 22 is arranged, the outer surface 23 of which is essentially flush with the outer surface 24 of the fastening plate 4. This creates a defined counter surface for supporting the resilient element.
• an area 50 protruding at the edge beyond the actual outer surface 24 and a further claw-shaped or clip-shaped section 51 are provided on the fastening plate 4. This can best be seen in FIG. 4.
• the protruding area 50 and the protruding section 51 encompass the outer edge 52 of the fastening plate 5 of the cutting tool.
• the wiping element 15 is guided in the area of the elongated hole 14 in the end plate 13 from the outside and along its through opening 25 on the punch to be inserted here from the inside.
• the seat on the punch is preferably designed as a snug fit.
• the front surface of the stripping element 15 is chamfered or shaped in accordance with the workpiece shape.
• the passage opening 25 already provided in the stripping element for carrying out the punch is driven completely through the stripping element, as is already shown by the dash-dotted lines in FIGS Figures 2 and ' 3 is indicated.
• a bevel angle ⁇ of up to 5 ° is preferably selected.
• one of the embodiments according to FIGS. 5 to 8 is preferably selected.
• the bevel angle ⁇ is preferably up to 10 °.
• the other shape of the front surface of the stripping element 15 is preferably adapted to the shape of the workpiece to be machined, in particular a sheet of complex shape.
• This adaptation also makes it possible to avoid undesired markings on the surface of the punched workpiece caused by the stripping element. Such in particular circular markings occur regularly in the devices of the prior art and lead to a lower quality of the punched workpieces or to rejects.
• the fastening plate is formed in one piece with the guide sleeve.
• This guide sleeve 26 is also longer in the region of its straight part 27 than the guide sleeve 11 according to FIGS. 2 and 3.
• the fastening plate part 28 of the guide sleeve 26 has a greater material thickness than the fastening plate 4 according to FIGS. 2 and 3.
• two fastening screws 10 and two dowel pins 53 are provided for fastening to the cutting tool or to the fastening plate of the punch.
• the thicker mounting plate part provides greater stability, which means that greater lateral and thrust forces can be compensated for.
• the guide sleeve is of such a length that it can be applied directly to the cutting tool and thereby also covers the fastening plate 5 of the punch, in particular with a standardized shape. This can be seen in particular from FIGS. 5 and 7.
• the covering is only one-sided, as can be seen in FIG. 5, similar to the above area 50 according to FIGS. 2 to 4, which is why the jacket of the guide sleeve is not of uniform length.
• the guide sleeve is shorter in order to end above it.
• the scraper element preferably consists of high-quality bronze.
• the guide sleeve is preferably made of steel. Because of this pairing of materials, a particularly high-quality guidance of the stripping element can be produced in the steel body of the guide sleeve, and a long durability or lifespan of the stripping device can be created. This is about five to ten times the previously known scrapers.
• the wearing part is only the resilient element. However, this lasts more than 1 million strokes and thus a multiple of the durability of the known stripping devices.
• a stroke limitation can also be generated. This is done in that it can be moved up to a maximum of just before the end plate 13 or 29.
• the provision of the anti-rotation device in the form of the elongated hole 14, 31 and the corresponding design of the stripping element can also absorb thrust forces in addition to the guiding function.
• FIGS. 9 to 11 show an embodiment which is suitable for particularly high shear forces or lateral forces.
• guide bushes 33 are provided instead of guide sleeves, the guide bushes 33 being arranged within a stripping element 34.
• the guide bush 33 runs on the punch, not shown. For this purpose, it has an inner through opening 35.
• the stripping element 34 is of larger design than in FIGS. 2 to 8. It is trapezoidal in shape, with large through openings 39, in which fastening means for fastening the stripping device to the cutting tool are seated.
• This area of the stripping element is the fastening section, which instead of a separate fastening plate and a fastening piece as in FIG 5 to 8 is formed on the stripping element itself.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Forests & Forestry (AREA)
• Punching Or Piercing (AREA)
• Mechanical Treatment Of Semiconductor (AREA)
• Processing Of Stones Or Stones Resemblance Materials (AREA)
• Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
• Crystals, And After-Treatments Of Crystals (AREA)
• Mounting, Exchange, And Manufacturing Of Dies (AREA)
• Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
• Extraction Or Liquid Replacement (AREA)
• Details Of Cutting Devices (AREA)
• Scissors And Nippers (AREA)

Priority Applications (1)

Applications Claiming Priority (4)

Publications (2)

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Family Applications Before (1)

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• 2002
  • 2002-07-25 EP EP02016591A patent/EP1384535A1/fr not_active Withdrawn
• 2003
  • 2003-07-25 ES ES03771104T patent/ES2280810T3/es not_active Expired - Lifetime
  • 2003-07-25 BR BR0312895A patent/BR0312895B1/pt not_active IP Right Cessation
  • 2003-07-25 AU AU2003253328A patent/AU2003253328A1/en not_active Abandoned
  • 2003-07-25 US US10/522,078 patent/US8225702B2/en not_active Expired - Fee Related
  • 2003-07-25 KR KR1020057001366A patent/KR20050026516A/ko active IP Right Grant
  • 2003-07-25 DE DE50306807T patent/DE50306807D1/de not_active Revoked
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  • 2003-07-25 MX MXPA05000993A patent/MXPA05000993A/es active IP Right Grant
  • 2003-07-25 AT AT03771104T patent/ATE356678T1/de not_active IP Right Cessation
  • 2003-07-25 JP JP2004523802A patent/JP2006502002A/ja active Pending
  • 2003-07-25 WO PCT/EP2003/008239 patent/WO2004011172A1/fr active IP Right Grant
  • 2003-07-25 PT PT03771104T patent/PT1554068E/pt unknown
  • 2003-07-25 EP EP20030771104 patent/EP1554068B1/fr not_active Revoked
• 2005
  • 2005-01-24 ZA ZA200500652A patent/ZA200500652B/xx unknown
• 2012
  • 2012-07-16 US US13/550,456 patent/US20130036888A1/en not_active Abandoned

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