EP1651400A1 - Emporte-piece mince destinee a etre utilisee dans une presse - Google Patents

Emporte-piece mince destinee a etre utilisee dans une presse

Info

Publication number
EP1651400A1
EP1651400A1 EP04778351A EP04778351A EP1651400A1 EP 1651400 A1 EP1651400 A1 EP 1651400A1 EP 04778351 A EP04778351 A EP 04778351A EP 04778351 A EP04778351 A EP 04778351A EP 1651400 A1 EP1651400 A1 EP 1651400A1
Authority
EP
European Patent Office
Prior art keywords
die
thin
base
press
foam
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Withdrawn
Application number
EP04778351A
Other languages
German (de)
English (en)
Inventor
David L. Hughes, Jr.
Kevin L. Corcoran
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ellison Educational Equipment Inc
Original Assignee
Ellison Educational Equipment Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ellison Educational Equipment Inc filed Critical Ellison Educational Equipment Inc
Publication of EP1651400A1 publication Critical patent/EP1651400A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/40—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools
    • B23P15/406—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools shearing tools rotary or plane die cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
    • 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
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • 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
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • 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
    • B26F2001/4436—Materials or surface treatments therefore
    • 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

Definitions

  • a thin die adapted to be used in a press and, more particularly, disclosed is a thin die adapted to be used in a press, a system including a thin die and a press, and a method for making a thin die adapted to be used in a press.
  • Dies and sheet cutting presses are used to cut various patterns out of sheet materials.
  • the presses may take the form of a platen die press or a roller die press.
  • the presses are designed to apply uniform pressure to a die to cut through a sheet or a plurality of sheets simultaneously.
  • Dies also may be used for embossing images onto sheet materials.
  • the sheets are placed between the die and a cutting pad, with the steel rule and the die extending through the sheets and slightly into the cutting pad when pressure is applied to the die.
  • Die presses are used commercially, as well as by consumers.
  • typical dies include shapes that range from the letters in the alphabet, numbers, and various other shapes, such as moons, stars, animals, trees, and various other shapes.
  • the dies include a base material, such as plywood or plastic, that houses a steel rule that is formed to the desired cutting shape.
  • a rubber material is then glued to the plywood or plastic base so that the rubber extends above the height of the sharpened edge of the bent steel rule shape, so that the rubber protects the steel rule and acts as an ejector means to eject the cut sheet material from the steel rule after the cutting process.
  • BRIEF SUMMARY OF THE DISCLOSURE Disclosed is a thin die adapted to be used in a press.
  • the die disclosed herein includes a base or backing portion that provides rigidity to the die assembly.
  • the base includes an indentation defining a boarder around the peripheral edge of the base.
  • a thin die is housed in the indentation of the base and the thin die is adhered to the indentation of the base by an adhesive.
  • the thin die is positioned in the indentation of the base so that raised portions of the thin die are facing away from the indentation in the base to allow the thin die to cut into and emboss a sheet material.
  • Ejection foam is adhered to the raised portion side of the thin die by an adhesive so that the ejection foam protects the raised portion of the thin die and provides an ejection means of the cut out shape of the sheet material.
  • a die and press system utilizing the thin die disclosed herein.
  • a die press which may be a platen die press or a roller die press.
  • the die press includes a cutting pad that allows the die to cut through the sheet material and into the cutting pad, if a platen die press is used.
  • the system further includes a thin die adapted to be used with a die press.
  • the thin die includes a base portion, a thin die portion, and an ejection foam portion, wherein the base portion and the ejection foam portion sandwich the thin die portion so that the thin die is located in an indentation located in the base and is adhered to the base by an adhesive. Further, the ejection foam portion is adhered to the thin die portion so as to protect raised portions of the thin die portion.
  • the ejection foam protects the raised portions of the thin die portion and acts as an ejection means to eject the cut shapes from the sheet material.
  • Also disclosed herein is a method of making a thin die, wherein the method includes the steps of providing a steel material, chemical etching away a portion of the steel material so as to leave at least one raised portion on one surface of the steel material to provide a shape in the steel material.
  • the process further includes adhering the steel material to a base portion so that the raised portion of the steel material is exposed on one side.
  • an ejection foam is adhered to the cutting side of the steel material to protect the raised portions of the steel die and to act as an ejection means to eject the cut shape from a sheet material used in a cutting process.
  • FIG. 1 illustrates a perspective view of a thin die according to the present disclosure
  • Fig. 2 illustrates a cross-sectional view taken from line 2-2 of Fig. 1 according to the present disclosure
  • Fig. 3 illustrates a bottom- view of the thin die according to the present disclosure
  • FIG. 4 illustrates a system utilizing a platen or roller press and a thin die according to the present disclosure
  • Fig. 5 illustrates the process of making a thin die according to the present disclosure
  • Fig. 6 illustrates a top view of the thin die with the ejection foam removed.
  • a thin die that is adapted to be used in a die press, such as a platen die press or a roller die press.
  • a thin die such as a chemical etched die assembly 100.
  • the die assembly 100 includes a base portion 102 and an ejection foam portion 104.
  • the ejection foam portion 104 has a shape 106 that follows the contour of a raised portion of the thin die portion of the assembly.
  • the shapes 106 are defined by shape borders 108.
  • the shape borders 108 define the shapes 106 in the ejection foam 104 and are created during the first use of the chemical etched die assembly 100, which the first use may be done at the factory to test the die or may be accomplished by the user of the die assembly 100.
  • the ejection foam portion 104 includes an ejection foam border 110 that follows a border 112 of the base portion.
  • Fig. 2 is a cross-sectional side-view taken from line 2-2 of Fig. 1.
  • Fig. 2 illustrates how the portions are assembled to comprise the final assembly configuration of the die assembly 100.
  • the base portion 102 includes a base portion indentation 202 to define the base portion peripheral border 112.
  • the chemical etched die 206 includes a relatively flat portion 207 and an opposite raised portion as defined by 208 and lower portions 210.
  • the flat portion 207 of the chemical etched die 206 is adhered to the base indentation 202 so that the chemical etched die 206 is located in and surrounded by the base portion peripheral border 112.
  • a layer of adhesive 204 adheres the chemical etched die flat portion 207 to the base indentation 202.
  • This adhesive 204 may be a foam adhesive, a spray adhesive or any other means to adhere the flat portion 207 of the chemical etched die to the base indentation portion 202.
  • the ejection foam portion 104 is adhered to the lower portions 210 of the chemical etched die 206.
  • the ejection foam portion 104 is adhered to the lower portions 210 to the chemical etched die 206 by an adhesive 212.
  • the adhesive 212 may be a foam adhesive, spray adhesive, or any other means to adhere the ejection foam portion 104 to the lower portions 210 of the chemical etched die 206.
  • the close-up view shown in Fig. 2 A illustrates one exemplary embodiment wherein the ejection foam adhesive 212 is limited to the lower portions 210 of the chemical etched die 206. In this embodiment, this configuration prevents the ejection foam material 104 from binding or interfering with the raised portion, or cutting surface 208 of the chemical etched die 206.
  • the adhesive is adhered to the lower portions 210, as well as the raised cutting portions 208.
  • the raised portion 208 of the die simply cuts through the adhesive and the ejection foam.
  • the height of the raised or cutting portion of the die portion is .021 inches, with the base of the die portion being .010 inches.
  • the base of the raised or cutting portion of the die portion is approximately .021 inches wide at the bottom and is approximately .004 inches wide at the top, with a cutting flat surface of approximately .002 inches wide.
  • the top of the raised cutting portion could range anywhere from .001 inches to .005 inches, for example without crushing the material to be cut.
  • Fig. 3 illustrates the bottom of the chemical etched die assembly 100, wherein only the base portion 102 is viewed.
  • the base portion 102 includes a back-side 300.
  • the backside 300 includes a back-side indentation 302.
  • the back-side indentation 302 allows for a label 304 with identifying indentia 306 to be located in the back-side indentation 302.
  • Fig. 3 A which is a cross-sectional view taken from line 3A-3A from Fig. 3.
  • the depth of the back-side indentation 302 is greater than the height of label 304 so that the forces transferred through the die assembly 100 are uniform across the die assembly 100 when the die assembly 100 is used with a die press.
  • Fig. 3 A wherein the depth of the back-side indentation 302 is identified by d and the height of the label 304 is identified by h, wherein d > h.
  • the thin die disclosed herein may be used with a platen die press 402 with a cutting pad 404 and an optional adaptor 406.
  • the thin die 100 disclosed herein may be used with a roller press 406.
  • chemical etched die embosses the shape of the raised portion of the die into the sheet material 408.
  • the raised portion 208 is not as sharp so as to not cut through the sheet material 408 when pressure is applied to the die from the press.
  • roller press 406 is used with the thin die 100 disclosed herein, sheet material 408 and the thin die is fed through the rollers of the roller press 406 so that pressure is exerted to the thin die 100 and to the sheet material 408 so that the desired shape is cut out of the sheet material 408.
  • the rollers may include a rabber or other resilient layer so that the raised portion or cutting portion 208 of the chemical etched die 206 does not become damaged when being fed through the rollers of the roller press 406.
  • Fig. 5 illustrates the method of making the thin die, which includes the steps of providing a sheet of flat stock material that may be a spring steel with a 45 high hardness or HRC rating.
  • the steel material is cleaned to remove dirt and oils from the steel surfaces.
  • the steel material is also degreased to remove the grease from the steel sheet stock material.
  • the steel sheet stock is then water rinsed to remove any degreasing material on the steel surfaces.
  • the steel material then may be acid rinsed to further remove any grease or other particles on the surfaces of the steel material.
  • the steel material is then again water rinsed to remove any remaining acid chemicals on the steel surfaces.
  • the steel material is then scrubbed with a scrubbing roller.
  • the scrubbing roller may be made of a nylon material.
  • the steel material is then rinsed again and the steel material is then dried.
  • the steel material is then dusted to remove any dust on the steel surfaces.
  • the steel surfaces that are not to be chemical etched away are laminated with a dry film.
  • the dry film may be a dry film with a specification of a YQ-30SD.
  • the dry film is applied upon to the steel surfaces at a temperature of 115°C at a pressure of 70 pounds per square inch or psi.
  • the laminated film is exposed to make the image and/or the word into a negative on the steel surface, with the negative result being on the steel surface being exposed with a strong light.
  • This developing process is completed at a temperature 12°C and a pressure of -720 mmHg.
  • the laminate is developed by the steps of removing the dry film without exposing the dry film, to get the image and the word located on a surface of the steel material.
  • a developing solution includes a chemical known as NaCO 3 at a 1% solution, and at a temperature of 30°C, and at a pressure of 1.5kg/cm and with a contact time of 50 seconds of the developing solution with the laminated steel material. The steel material is then water rinsed and blow dried.
  • the steel material is chemical etched without the dry film in with a chemical solution of FeCL 3 to get the image and/or the word on the steel material. It is this step that creates the raised or cutting portions 208 and the lower portion 210. It is the lower portion 210 that is etched away, while the raised portion or cutting portion 208 remains at the original thickness of the steel material.
  • the etching process includes a chemical known as FeCL 3 41%, with a specific gravity of 1.41, HCL 31% with a specific gravity of 1.151, and PC-420 with a specific gravity of 1.288. Further, this is conducted at a temperature of 48°C, and a pressure of 3.0kg ⁇ cm 2 and with the steel material being exposed to this chemical solution approximately 22 minutes.
  • steel material with the resulting chemical etched away surfaces is water rinsed and blow dried.
  • the dry laminated film is stripped away from the raised or cutting portion 208 with a chemical known as NaOH at 5%, at a temperature of 48°C and at a pressure of 2.0kg ⁇ cm 2 and at a contact time of 60 seconds.
  • the steel material with the etched net shape is exposed to a chemical etch process again, without any dry laminated film located over the raised or cutting portion 208. This takes away any sharp edges from the raised or cutting portion 208 and further defines the raised or cutting portion 208.
  • This step is l ⁇ iown as a second etching step. In this step, the steel material with the near net shape is exposed to the etching chemicals for approximately 20 to 25 seconds; however, this length of time is exemplary only and is a function of the thickness of the chemical etched die and the strength and composition of the chemical etching materials.
  • the steel material is pressure rinsed and blow dried, and then an antioxidant may be applied to the steel material.
  • the antioxidant must not interfere with the adhesion of the rejection foam onto the steel material or the adliesion of the steel material onto the base portion 102.
  • the resulting steel material otherwise known as the chemical etched die portion 206, is applied to the base portion 102, and then the ejection foam material 104 is applied to the cutting side of the chemical etched die 206.
  • the sponge material that is used may be known as PORON, a cellular urethane foam, part number 470130-25025-04, from Rogers Corporation, Woodstock, CT.
  • the sponge material may be of the neoprene family and, more particularly, a synthetic neoprene, such as chloroprene rubber, otherwise known as CR foam.
  • CR foam is a durable and relatively inexpensive foam since it is synthetic.
  • the steel sheet stock that is provided may allow a plurality of chemical etched dies 206 to be etched from one piece of sheet stock. Therefore, a plurality of chemical etched dies 206 may be machined from piece of sheet stock, with the separation of the individual dies from the sheet stock being accomplished in the etching step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

La présente invention a trait à un emporte-pièce mince apte à être utilisé dans une presse. L'emporte-pièce selon l'invention comporte une base ou portion de support assurant un rigidité à l'ensemble de filière. La base comporte une entaille définissant une bordure autour d'un bord périphérique de la base. Un emporte-pièce mince est logé dans l'entaille de la base et l'emporte-pièce mince est collé à l'encoche de la base au moyen d'un adhésif. L'emporte-pièce mince est positionné dans l'entaille de la base de sorte que des portions en relief de l'emporte-pièce mince font face au côté opposé de l'entaille dans la base pour permettre la découpe par l'emporte-pièce mince d'un matériau en feuille. Une mousse d'éjection est collée du côté des portions en relief de l'emporte-pièce mince au moyen d'un adhésif de sorte que la mousse d'éjection protège la partie en relief de l'emporte-pièce mince et fournit un moyen d'éjection de la forme découpée hors du matériau en feuille. L'invention a également trait un système d'emporte-pièce et de presse mettant en oeuvre l'emporte-pièce mince de l'invention. Le système comporte une presse de découpage, qui peut être une presse de découpage à platine et une presse de découpage à rouleau. La presse de découpage comporte un bloc de coupe permettant la découpe par l'emporte-pièce à travers matériau en feuille et sa pénétration dans le bloc de coupe, dans le cas d'une presse de découpage à platine. Le système comporte en outre un emporte-pièce mince adapté à être utilisé avec une presse de découpage. L'emporte-pièce mince comporte une portion de base, une portion d'emporte-pièce mince, et une portion de mousse d'éjection, dans lequel la portion de base et la portion de mousse d'éjection enserre la portion d'emporte-pièce mince entre elles de sorte que l'emporte-pièce mince est disposé dans une entaille située dans la base et est collé à la base au moyen d'un adhésif. En outre, la mousse d'éjection est collée à la portion d'emporte-pièce mince de manière à protéger les portions en relief de la portion de l'emporte-pièce mince. La mousse d'éjection protège les portions en relief de la portion d'emporte-pièce mince et sert de moyen d'éjection pour l'éjection des formes découpées hors du matériau en feuille.
EP04778351A 2003-07-17 2004-07-16 Emporte-piece mince destinee a etre utilisee dans une presse Withdrawn EP1651400A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48857003P 2003-07-17 2003-07-17
PCT/US2004/022807 WO2005009698A1 (fr) 2003-07-17 2004-07-16 Emporte-piece mince destinee a etre utilisee dans une presse

Publications (1)

Publication Number Publication Date
EP1651400A1 true EP1651400A1 (fr) 2006-05-03

Family

ID=34102774

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04778413A Withdrawn EP1648653A1 (fr) 2003-07-17 2004-07-16 Procede de fabrication d'une matrice mince utilisee dans une presse
EP04778351A Withdrawn EP1651400A1 (fr) 2003-07-17 2004-07-16 Emporte-piece mince destinee a etre utilisee dans une presse

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04778413A Withdrawn EP1648653A1 (fr) 2003-07-17 2004-07-16 Procede de fabrication d'une matrice mince utilisee dans une presse

Country Status (8)

Country Link
US (3) US20050028644A1 (fr)
EP (2) EP1648653A1 (fr)
JP (2) JP2007531632A (fr)
KR (2) KR20060034707A (fr)
CN (2) CN1822930A (fr)
AU (2) AU2004259711A1 (fr)
MX (2) MXPA06000587A (fr)
WO (2) WO2005009668A1 (fr)

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CN1822930A (zh) 2006-08-23
MXPA06000587A (es) 2006-07-10
WO2005009698A1 (fr) 2005-02-03
EP1648653A1 (fr) 2006-04-26
KR20060034707A (ko) 2006-04-24
US20070051204A1 (en) 2007-03-08
AU2004259711A1 (en) 2005-02-03
AU2004259716A1 (en) 2005-02-03
KR20060035760A (ko) 2006-04-26
US20050028644A1 (en) 2005-02-10
US20050050936A1 (en) 2005-03-10
CN1822915A (zh) 2006-08-23
JP2007531632A (ja) 2007-11-08
JP2007531633A (ja) 2007-11-08
MXPA06000586A (es) 2006-07-03
WO2005009668A9 (fr) 2005-08-18
WO2005009668A1 (fr) 2005-02-03

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