US3570345A - Punching die - Google Patents
Punching die Download PDFInfo
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- US3570345A US3570345A US3570345DA US3570345A US 3570345 A US3570345 A US 3570345A US 3570345D A US3570345D A US 3570345DA US 3570345 A US3570345 A US 3570345A
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- Prior art keywords
- plate
- punching die
- die according
- cutting
- knife blade
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- Expired - Lifetime
Links
- 238000004080 punching Methods 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000012780 transparent material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
- B21D37/205—Making cutting tools
-
- 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
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
-
- 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
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
- B26F1/46—Loose press knives
-
- 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
- C14B5/02—Stamps or dies for leather articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
-
- 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
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- 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
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
- B26F2001/4463—Methods and devices for rule setting, fixation, preparing cutting dies
-
- 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
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
- B26F2001/4472—Cutting edge section features
-
- 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
- Y10T83/2122—By ejector within a hollow cutter
- Y10T83/2133—By resiliently biased ejector
-
- 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
- Y10T83/9411—Cutting couple type
- Y10T83/9416—To punch and cut punched article
-
- 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
- Y10T83/9411—Cutting couple type
- Y10T83/9418—Punching plus nonpunching 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
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9457—Joint or connection
- Y10T83/9459—Magnetic connection
-
- 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
Definitions
- Patented March 16, 1-971 3 Sheets-Sheet 5 PUNCIIING DIE It is the purpose of the present invention to provide improvements of known punching dies having a strip steel knife closed to a specific shape and being held on a base plate.
- the invention uses perforated strip steel to which holding angles are fastened which extend into the space surrounded by the configuration of the strip steel knife, for connection to a base or inner plate by further fastening means which whereby a clearance or spacing is provided between the plate and the strip steel knife.
- FIG. 4 is a section similar to FIG. 2 of a further embodiment
- FIG. 5 shows the fastening of a cutting-in knife on the strip steel knife
- FIG. 9 is a section through the strip steel for the embodiment according to FIGS. 7 and 8.
- a strip steel length 1 provided along its full length with perforations in the form of a single or double hole row is bent to a closed or endless configuration corresponding to a pattern, for example, a sleeve pattern.
- perforations holding angles 2 are fastened, e.g. by screws or by riveting, with so-called pop rivets 5 or the like.
- cutting-in knives 3 or other marking tools are fastened to the strip steel knife I, by means of sheet metal holders 3a with screws or rivets 5 (FIG. 5).
- the base or inner plate 27 has a configuration which rests practically without any clearance inside the knife of the die.
- the strip steel knife 21 is provided on its inner or plate facing surface with a groove 22 extending in parallel to its cutting-edge (FIG. 9).
- the gist of the second embodiment of the invention is to ob tain with the same simple and cheap holding means as in the first embodiment an exactly shaped pattern made of relatively thin, but sufficiently resistant material placed directly into a punching die.
- a strip steel knife blade having a plate facing wall of given width and a cutting edge forming a closed configuration corresponding to said pattern, is attached to an inner plate having a given thickness, by means for rigidly securing the knife blade to the plate, the improvement comprising: a groove in said plate facing wall of said knife blade, said groove having such a depth that the groove extends between the plate facing wall of the knife blade and a plane extending through the cutting edge in parallel to said plate facing wall, said groove having a width corresponding substantially to the thickness of said plate, said groove extending in a plane defined by said plate so that the plate extends into the groove.
- said securing means are holding angles comprising a knife facing leg and a plate facing leg, and barbs secured to said plate facing leg for entering into said plate.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Details Of Cutting Devices (AREA)
Abstract
A punching die wherein a strip steel cutting knife having the desired endless or closed configuration of patterns to be cut or punched from sheet material, is attached to a plate which is surrounded by the knife as by a frame. In one embodiment a spacing is provided between the plate facing wall of the knife and the plate all around the plate. In another embodiment the plate facing wall of the knife is provided with a groove to receive the edge of the plate.
Description
United States Patent Inventor Ernst Spengler Heusenstamm near Offenbach, Germany Appl. No. 796,646 Filed Jan. 30, 1969 Patented Mar. 16, 1971 Assignee Roeder & Spengler OHG Bergen-Enkheim Hessen, Germany Priority Feb.3, 1968, July 17, 1968 Germany R36850 and P 17 60 899.0
PUNCHING DIE 19 Claims, 9 Drawing Figs.
U.S. Cl 83/128,
76/107, 83/681, 83/682, 83/698 Int. Cl 826d 7/06,
Field of Search 83/681 Primary Examiner-Frank T. Yost Att0rney-Wolfgang G. Fasse ABSTRACT: A punching die wherein a strip steel cutting knife having the desired endless or closed configuration of patterns to be cut or punched from sheet material, is attached to a plate which is surrounded by the knife as by a frame. In
one embodiment a spacing is provided between the plate facing wall of the knife and the plate all around the plate. In another embodiment the plate facing wall of the knife is provided with a groove to receive the edge of the plate.
Patented Mrch 16, 1971 "3 Sheets-Sheet 2 7/ Zr/In VII;
Patented March 16, 1-971 3 Sheets-Sheet 5 PUNCIIING DIE It is the purpose of the present invention to provide improvements of known punching dies having a strip steel knife closed to a specific shape and being held on a base plate.
Up to now a strip steel knife was connected rigidly and undetachably with an exactly cutout base plate.
Such punching dies are thrown away after their use as they can be altered only with great difficulties and a reuse is not possible. If only slight modifications are to be made to a style, a new base plate must be cut and possibly a new knife must be shaped. In this way high expenses are caused. It is an object of the present invention to avoid such drawbacks.
The invention uses perforated strip steel to which holding angles are fastened which extend into the space surrounded by the configuration of the strip steel knife, for connection to a base or inner plate by further fastening means which whereby a clearance or spacing is provided between the plate and the strip steel knife.
According to the invention, the base plate need not be out exactly since the plate does not have, to correspond precisely to the exactly shaped strip steel knife due to said clearance which makes possible small modifications to the form by removing a holding angle, bending the strip steel knife in the new shape and fixing it by fastening a new holding angle. These features are facilitated by the fact that the strip steel is prepunched or perforated.
In order that the invention may be clearly understood it will not be described, by way of example, with reference to the accompanying drawings, wherein:
FIG. I a is a planview of a punching die according to the invention;
' FIG. 2 is a section through a holding angle;
FIG. 3 is a plan view of a holding angle;
FIG. 4 is a section similar to FIG. 2 of a further embodiment;
FIG. 5 shows the fastening of a cutting-in knife on the strip steel knife;
FIG. 6 is a section similar to FIG. 2 of a further embodiment; FIG. 7 is a partial view similar to FIG. I for another embodiment; I
FIG. 8 is a representation similar to FIG. 4 for the embodiment according to FIG. 7; and
FIG. 9 is a section through the strip steel for the embodiment according to FIGS. 7 and 8.
FIG. I shows a plan view of a punching die for a sleeve part.
A strip steel length 1 provided along its full length with perforations in the form of a single or double hole row is bent to a closed or endless configuration corresponding to a pattern, for example, a sleeve pattern.
At some of the perforations holding angles 2 are fastened, e.g. by screws or by riveting, with so-called pop rivets 5 or the like.
In some zones so-called cutting-in knives 3 or other marking tools, such as taper plugs or hollow punches, are fastened to the strip steel knife I, by means of sheet metal holders 3a with screws or rivets 5 (FIG. 5).
The flange 4 of each holding angle 2 protruding towards the interior is provided, as is shown by FIGS. 2 and 3 with punched-out and bent upward lugs in the form of barbs 6.
For providing the die with bodily rigidity, a base plate 7 is inserted and the barbs 6 are driven into the base plate.
All around the base plate 7 between the outer edge thereof and a plate facing wall of the strip steel knife 1, there is pro vided a spacing or clearance 8.
' Suction cups 9 or magnetic holders or the like are attached to the bottom of the base plate 7. An ejector means 10 is provided on the side of the base plate facing in the direction of the cutting edge. The purpose of the cups or holders9 is to hold the stamping die on a stamping apparatus.
A punching die according to the invention. can also be used for cutting mirror-inverted shapes, if the strip steel 11 has two opposed cutting edges as shown in FIGS. 4m 9.
U-shaped holding angles 12 are fastened to the strip steel 11 e.g. by means of rivets 15 extending through the perforations. The profile legs 14 of the holding angles 12 protrude inwardly and grip around the baseplate 7 FIGS. 4 or 6. These profile legs have aligned perforations to receive rivets 18 or screws or the like.
FIG. 6 shows a further embodiment in which an essentially U-shaped holding angle 12 is connected similarly to the embodiment according to FIG. 4 ona knife 1 sharpened only at one edge.
The holding angles are suitably profiled to make them more rigid (FIG. 3).
The cutting-in knives3 can also be fastened to the base plate instead of being fastened to the strip steel knife I, so that their position is independent of the perforation of the strip, (cf. FIG. 1).
In the embodiment according to FIG. 7, the base or inner plate 27 has a configuration which rests practically without any clearance inside the knife of the die. The strip steel knife 21 is provided on its inner or plate facing surface with a groove 22 extending in parallel to its cutting-edge (FIG. 9).
The width of the groove 22 corresponds approximately to the thickness of the base plate 27. The depth of the groove corresponds to the thickness of the inner level of the cutting edge. The peripheral edge of the base plate 27 extends into the groove 22 when the punching die is finished. The outline of the pattern forming the base plate 27 coincides thus with the shape formed by the cutting edge 23 a and 23b, respectively.
If the strip steel 21 is smooth on both sides, i.e. if it does not have a groove 22, the outline of the pattern forming the base plate 27 must be smaller by the thickness of the inner level or taper of the cutting edge in case of the strip steel knife according to FIG. 9 thus by half the thickness of the strip steel 21. Then the cutting line 23a or 23b corresponds to the desired shape of the workpiece if the strip steel 21 engages the base plate 27 snugly.
The material of the pattern forming the base plate 27 can be of any type. The pattern may consist, e.g. of cardboard of ;a thickness of 2 to 3 mm., plastics material, wood, thin metal, transparent material or a material with any outlines.
In the embodiment of FIGS. 7 and 8 the base plate 27 has a lower resistance to buckling than in the first embodiment. Therefore, the holding angles 212 serve for holding the strip steel 21 during the stamping exactly perpendicularly to the base plate 27. For this purpose the holding angles 212 are provided with a sufficiently large back surface 213 which rests on the plate facing side of the strip steel knife 21 (FIG. 8).
In order to be able to fasten the base plate 27 to the holding angle 212 so that the plate is held between the legs 214, e.g. by rivets 218, the base plate 27 is provided within the range of each holding clamp 212 with suitably semicircular recesses 271.
As in the embodiment according to FIG. 4, the holding clamps 212 of FIGS. 7 and 8 are connected with their wide upper web to the strip steel knife 21 by means of rivets 215.
In order to facilitate the manipulation of the punching die particularly when lying on the material to be punched out, the base plate may be provided with rectangular recesses 272 corresponding to a thread path or--if the plate 27 is made of transparent material--with markings corresponding to the thread path.
The gist of the second embodiment of the invention is to ob tain with the same simple and cheap holding means as in the first embodiment an exactly shaped pattern made of relatively thin, but sufficiently resistant material placed directly into a punching die.
The invention is not limited to the embodiments described. Details can be adapted to the purposes according to the particular circumstances without departing from the scope of the invention as defined by the appended claims.
Iclaim:
I. In a punching die for cutting predetermined patterns out of sheet material, wherein a strip steel knife blade having a plate facing wall of given width and a cutting edge forming a closed configuration corresponding to said pattern, is attached to an inner plate having a given thickness, by means for rigidly securing the knife blade to the plate, the improvement comprising: a groove in said plate facing wall of said knife blade, said groove having such a depth that the groove extends between the plate facing wall of the knife blade and a plane extending through the cutting edge in parallel to said plate facing wall, said groove having a width corresponding substantially to the thickness of said plate, said groove extending in a plane defined by said plate so that the plate extends into the groove.
2. The punching die according to claim 1, wherein said securing means are holding angles which are riveted to the knife blade as well as to the inner plate.
3. The punching die according to claim 1, wherein said innner plate has a plurality of recesses in its peripheral area, and wherein said securing means comprise rivet means and brackets having two spaced arms interconnected adjacent to said plate facing wall by a crosspiece having a sufficiently large back surface corresponding in-its length substantially to said given width of said plate facing wall, said spaced arms having aligned apertures through which said rivet means extend, said large back surface also having an aperture through which rivet means extend, said securing means being located at least with said crosspieces in said recesses.
4. The punching die according to claim 1, wherein said securing means are holding angles comprising a knife facing leg and a plate facing leg, and barbs secured to said plate facing leg for entering into said plate.
5. The punching die according to claim 1, further comprising cutting-in members and means for securing said cutting-in members to the plate facing wall of the knife blades.
6. The punching die according to claim 1, further comprising ejector means held on said plate on the side facing in the direction of said cutting edge.
7. The punching die according to claim 1, further comprising holding means secured to said plate for attaching the die to a punching apparatus.
8. The punching die according to claim 1, wherein said knife blade is provided with two opposed cutting edges whereby said plane extends through both cutting edges.
9. The punching die according to claim 1, wherein said inner plate is made of transparent material.
10. The punching die according to claim 1, further comprising marking means in said inner plate.
1]. In a punching die for cutting predetermined patterns out of sheet material, wherein a strip steel knife blade having a plate facing wall having a given width, a cutting edge forming a closed configuration corresponding to said pattern, is attached to an inner plate having an outer edge by means for rigidly securing the knife blade to the plate, the improvement comprising a spacing between the outer edge of said inner plate and said plate facing wall of the knife blade, said spacing extending all around the inner plate, said securing means comprising leg portions of sufficient length to bridge said spacing.
12. The punching die according to claim 11, wherein said securing means are holding angles which are riveted to the knife blade as well as to the inner plate.
13. The punching die according to claim 11, wherein said securing means are holding angles comprising a knife facing leg and a plate facing leg, and barbs secured to said plate facing leg for entering into said plate.
14. The punching die according to claim 11, further comprising cutting-in members and means for securing said cutting-in members to the plate facing wall of the knife blades.
15. The punching die according to claim 11, further comprising ejector means held on said plate on the side facing in the direction of said cutting edge.
16. The punching die according to claim 11, further comprising holding means secured to said plate for attaching the die to a punching apparatus.
17. The punching die according to claim 11, wherein said knife blade is provided with two opposed cuttin ed es.
18. The punching die according to claim 1 wfierein said inner plate is made of transparent material.
19. The punching die according to claim 11, further comprising marking means in said inner plate.
Claims (19)
1. In a punching die for cutting predetermined patterns out of sheet material, wherein a strip steel knife blade having a plate facing wall of given width and a cutting edge forming a closed configuration corresponding to said pattern, is attached to an inner plate having a given thickness, by means for rigidly securing the knife blade to the plate, the improvement comprising: a groove in said plate facing wall of said knife blade, said groove having such a depth that the groove extends between the plate facing wall of the knife blade and a plane extending through the cutting edge in parallel to said plate facing wall, said groove having a width corresponding substantially to the thickness of said plate, said groove extending in a plane defined by said plate so that the plate extends into the groove.
2. The punching die according to claim 1, wherein said securing means are holding angles which are riveted to the knife blade as well as to the inner plate.
3. The punching die according to claim 1, wherein said innner plate has a plurality of recesses in its peripheral area, and wherein said securing means comprise rivet means and brackets having two spaced arms interconnected adjacent to said plate facing wall by a crosspiece having a sufficiently large back surface corresponding in its length substantially to said given width of said plate facing wall, said spaced arms having aligned apertures through which said rivet means extend, said large back surface also having an aperture through which rivet means extend, said securing means being located at least with said crosspieces in said recesses.
4. The punching die according to claim 1, wherein said securing means are holding angles comprising a knife facing leg and a plate facing leg, and barbs secured to said plate facing leg for entering into said plate.
5. The punching die according to claim 1, further comprising cutting-in members and means for securing said cutting-in members to the plate facing wall of the knife blades.
6. The punching die according to claim 1, further comprising ejector means held on said plate on the side facing in the direction of said cutting edge.
7. The punching die according to claim 1, further comprising holding means secured to said plate for attaching the die to a punching apparatus.
8. The punching die according to claim 1, wherein said knife blade is provided with two opposed cutting edges whereby said plane extends through both cutting edges.
9. The punching die according to claim 1, wherein said inner plate is made of transparent material.
10. The punching die according to claim 1, further comprising marking means in said inner plate.
11. In a punching die for cutting predetermined patterns out of sheet material, wherein a strip steel knife blade having a plate facing wall having a given width, a cutting edge forming a closed configuration corresponding to said pattern, is attached to an inner plate having an outer edge by means for rigidlY securing the knife blade to the plate, the improvement comprising a spacing between the outer edge of said inner plate and said plate facing wall of the knife blade, said spacing extending all around the inner plate, said securing means comprising leg portions of sufficient length to bridge said spacing.
12. The punching die according to claim 11, wherein said securing means are holding angles which are riveted to the knife blade as well as to the inner plate.
13. The punching die according to claim 11, wherein said securing means are holding angles comprising a knife facing leg and a plate facing leg, and barbs secured to said plate facing leg for entering into said plate.
14. The punching die according to claim 11, further comprising cutting-in members and means for securing said cutting-in members to the plate facing wall of the knife blades.
15. The punching die according to claim 11, further comprising ejector means held on said plate on the side facing in the direction of said cutting edge.
16. The punching die according to claim 11, further comprising holding means secured to said plate for attaching the die to a punching apparatus.
17. The punching die according to claim 11, wherein said knife blade is provided with two opposed cutting edges.
18. The punching die according to claim 11, wherein said inner plate is made of transparent material.
19. The punching die according to claim 11, further comprising marking means in said inner plate.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1968R0036850 DE1984105U (en) | 1968-02-03 | 1968-02-03 | CUTTING FORM. |
DE19681760899 DE1760899A1 (en) | 1968-07-17 | 1968-07-17 | Cutting die |
Publications (1)
Publication Number | Publication Date |
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US3570345A true US3570345A (en) | 1971-03-16 |
Family
ID=25755260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US3570345D Expired - Lifetime US3570345A (en) | 1968-02-03 | 1969-01-30 | Punching die |
Country Status (9)
Country | Link |
---|---|
US (1) | US3570345A (en) |
AT (1) | AT295985B (en) |
BE (1) | BE727803A (en) |
CH (1) | CH493313A (en) |
ES (1) | ES363165A1 (en) |
FR (1) | FR2001282A1 (en) |
GB (1) | GB1251155A (en) |
NL (1) | NL6901466A (en) |
YU (1) | YU24369A (en) |
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US3797351A (en) * | 1973-03-07 | 1974-03-19 | W Jones | Mounting system for envelope-die holders |
US5104370A (en) * | 1989-10-12 | 1992-04-14 | Bobst Sa | Ancillary device for fastening a tool within a platen press |
US5782152A (en) * | 1995-08-15 | 1998-07-21 | W. L. Gore & Associates, Inc. | Vacuum fixture and method for dimensioning and manipulating materials |
US6298761B1 (en) * | 1999-05-07 | 2001-10-09 | International Business Machines Corporation | Thin film hole making apparatus |
US6779426B1 (en) * | 1999-12-21 | 2004-08-24 | Atlas Die Llc | Die rule retention device and retaining board incorporating same |
US20040211303A1 (en) * | 2002-11-07 | 2004-10-28 | Horning Marty Paul | Steel rule cutting die and method of mounting cutting knife cavities for improved scrap material removal |
US20190075920A1 (en) * | 2017-09-08 | 2019-03-14 | Innotech Appliance Limited | Manual toothbrush |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8100858A (en) * | 1981-02-20 | 1982-09-16 | Patent Machine Bouw Nv | METHOD FOR MANUFACTURING A CUTTING UNIT AND APPARATUS PROVIDED WITH SUCH A STANDING UNIT |
GB2119299A (en) * | 1982-03-04 | 1983-11-16 | Pa Management Consult | Making cutting tools |
AT400937B (en) * | 1987-06-12 | 1996-04-25 | Wieser Ludwig Dipl Ing | Punching template |
AT391292B (en) * | 1987-12-18 | 1990-09-10 | Miller Martin Ag | METHOD FOR PRODUCING A SINGLE OR TWO-SIDED PUNCHING KNIFE FOR NON-METAL MATERIALS |
FR2698035B1 (en) * | 1992-11-18 | 1995-03-03 | Innodec Broussaud | Method for making cookie cutters for cutting sheet materials and the cookie cutters obtained. |
US8042442B2 (en) | 2002-08-01 | 2011-10-25 | Bayerische Motoren Werke Aktiengesellschaft | Cutting tool |
DE10235185A1 (en) * | 2002-08-01 | 2004-02-19 | Bayerische Motoren Werke Ag | cutting equipment |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US677793A (en) * | 1900-11-14 | 1901-07-02 | Emanuel Pisko | Die for cutting out cigar-wrappers. |
US1030529A (en) * | 1909-10-25 | 1912-06-25 | United Shoe Machinery Ab | Cutting-die. |
US1095117A (en) * | 1909-05-17 | 1914-04-28 | United Shoe Machinery Ab | Die. |
US2425082A (en) * | 1946-03-23 | 1947-08-05 | Harry M Bolston | Die |
US2850096A (en) * | 1957-03-04 | 1958-09-02 | Templet Ind Inc | Rule die set and method of making same |
US3253493A (en) * | 1964-04-27 | 1966-05-31 | Punch Products Corp | Unitary punch and die assembly |
-
1969
- 1969-01-24 CH CH110869A patent/CH493313A/en not_active IP Right Cessation
- 1969-01-27 AT AT78869A patent/AT295985B/en active
- 1969-01-29 NL NL6901466A patent/NL6901466A/xx unknown
- 1969-01-30 US US3570345D patent/US3570345A/en not_active Expired - Lifetime
- 1969-01-30 GB GB1251155D patent/GB1251155A/en not_active Expired
- 1969-01-31 ES ES363165A patent/ES363165A1/en not_active Expired
- 1969-01-31 YU YU24369A patent/YU24369A/en unknown
- 1969-01-31 BE BE727803D patent/BE727803A/xx unknown
- 1969-01-31 FR FR6902125A patent/FR2001282A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US677793A (en) * | 1900-11-14 | 1901-07-02 | Emanuel Pisko | Die for cutting out cigar-wrappers. |
US1095117A (en) * | 1909-05-17 | 1914-04-28 | United Shoe Machinery Ab | Die. |
US1030529A (en) * | 1909-10-25 | 1912-06-25 | United Shoe Machinery Ab | Cutting-die. |
US2425082A (en) * | 1946-03-23 | 1947-08-05 | Harry M Bolston | Die |
US2850096A (en) * | 1957-03-04 | 1958-09-02 | Templet Ind Inc | Rule die set and method of making same |
US3253493A (en) * | 1964-04-27 | 1966-05-31 | Punch Products Corp | Unitary punch and die assembly |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3797351A (en) * | 1973-03-07 | 1974-03-19 | W Jones | Mounting system for envelope-die holders |
US5104370A (en) * | 1989-10-12 | 1992-04-14 | Bobst Sa | Ancillary device for fastening a tool within a platen press |
US5782152A (en) * | 1995-08-15 | 1998-07-21 | W. L. Gore & Associates, Inc. | Vacuum fixture and method for dimensioning and manipulating materials |
US5800661A (en) * | 1995-08-15 | 1998-09-01 | W. L. Gore & Associates, Inc. | Vacuum fixture and method for dimensioning and manipulating materials |
US5870937A (en) * | 1995-08-15 | 1999-02-16 | W. L. Gore & Associates, Inc. | Vacuum fixture and method for dimensioning and manipulating materials |
US5906363A (en) * | 1995-08-15 | 1999-05-25 | W. L. Gore & Associates, Inc. | Vacuum fixture and method for dimensioning and manipulating materials |
US6298761B1 (en) * | 1999-05-07 | 2001-10-09 | International Business Machines Corporation | Thin film hole making apparatus |
US6779426B1 (en) * | 1999-12-21 | 2004-08-24 | Atlas Die Llc | Die rule retention device and retaining board incorporating same |
US20040211303A1 (en) * | 2002-11-07 | 2004-10-28 | Horning Marty Paul | Steel rule cutting die and method of mounting cutting knife cavities for improved scrap material removal |
US20190075920A1 (en) * | 2017-09-08 | 2019-03-14 | Innotech Appliance Limited | Manual toothbrush |
Also Published As
Publication number | Publication date |
---|---|
NL6901466A (en) | 1969-08-05 |
GB1251155A (en) | 1971-10-27 |
BE727803A (en) | 1969-07-01 |
AT295985B (en) | 1972-01-25 |
FR2001282A1 (en) | 1969-09-26 |
ES363165A1 (en) | 1970-11-16 |
CH493313A (en) | 1970-07-15 |
YU24369A (en) | 1973-02-28 |
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