US20060042419A1 - Pattern cutter, its processing methods and moulds - Google Patents

Pattern cutter, its processing methods and moulds Download PDF

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Publication number
US20060042419A1
US20060042419A1 US11/182,915 US18291505A US2006042419A1 US 20060042419 A1 US20060042419 A1 US 20060042419A1 US 18291505 A US18291505 A US 18291505A US 2006042419 A1 US2006042419 A1 US 2006042419A1
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US
United States
Prior art keywords
blade
mould
forming cavity
base
die
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.)
Abandoned
Application number
US11/182,915
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English (en)
Inventor
Yeqing Deng
Faye Angevine
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Individual
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Individual
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
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Publication of US20060042419A1 publication Critical patent/US20060042419A1/en
Abandoned legal-status Critical Current

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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
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • 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
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/10—Hand or foot actuated means
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2607—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member for mounting die cutters
    • 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

Definitions

  • the present invention relates to the pattern cutting technique and, more particularly, to a pattern cutter, its processing methods and moulds.
  • the traditional paper-cutting handicrafts are a kind of work of art gaining immense popular favor. With a large variety of designs or patterns and high value of artistic appreciation, the paper-cutting handicrafts are very suitable to the kindergarten education of children. Abroad, these kind of paper-cutting products are widely used for children education. In the United States, for example, the paper-cutting products are very popularized.
  • the paper, plastic pieces, rubber pieces or similar materials are generally cut into letters, cartoon, animals or human-shaped patterns for cultivation of children's cognitive ability and discrimination. But, the production efficiency is relatively low by using traditional hand paper-cutting method to make paper-cutting patterns, with a poor consistency in designs, hence it is not suitable for mass production.
  • a process has' been adopted to suit the mass production, i.e. firstly machining a pattern cutter for pattern cutting purpose.
  • This pattern cutter is designed to work in such a way that the thin blade with a sharp cutting edge is bent to the pattern to be processed and it is embedded and fixed into a flat plate. Then, this pattern cutter is used to cut paper or similar flat sheet material.
  • the material that is cut has an individual artistic pattern identical to that of the thin cutting blade, i.e. the products that are required. If the products of different shapes are to be made, what to do is only to change the pattern cutter with different shapes. In producing such pattern cutter, the thin cutting blade needs to be bent to pattern shape that is required.
  • the object of the present invention is to solve those problems occurring in the prior art and provide a pattern cutter that is simple and rational in construction, easy to produce and convenient to use, low in manufacturing cost and good in product consistency.
  • Another object of the present invention is to provide a technological method for processing the aforesaid pattern cutter.
  • Still another object of the present invention is to provide a forming mould, which can materialize the aforesaid processing method.
  • This pattern cutter includes a base and cutting blade.
  • the cutting blade is located on the base.
  • the cutting blade forms the pattern shape to be cut.
  • the said base and cutting blade are of one-piece structure and machined into shape at one go through die-casting process.
  • the height of the said cutting blade is greater than or equal to 2.5 mm.
  • the angle of the cutting edge of the said blade is smaller than or equal to 60°.
  • the cross sectional shape of the said blade is of triangle or combination of triangle and rectangle or combination of triangle and trapezoid.
  • the surface of the said base is in parallel with the face of cutting blade, and both of them can be either plane or arc curved surface.
  • the holding legs are integrally made on the said base at the other side opposite to the surface where the cutting blade is located.
  • the said holding legs are used for connection with other fittings or allow an operator to directly hand hold the pattern cutter in operation.
  • a technological process to form the aforesaid pattern cutter wherein the features are that a mould is directly utilized to die cast the base and blade which are joined together.
  • the said cutting blade forms the pattern shape that requires to be cut.
  • the said technological process can include the following concrete procedures: (1) Machine the die casting mould according to the shape of the required product; (2) Place the die casting mould on the die-casting machine, and use the die-casting machine to fill the alloy solution into the cavity of die-casting mould. Take out the die casting product after it is cooled and formed; (3) Conduct surface hardening treatment to the die casting product.
  • the object of the said surface hardening treatment is to raise the hardness of cutting blade of pattern cutter and extend its operating life.
  • the surface of the die casting blade is plated with a metal material of higher hardness, e.g. chromium, nickel, zinc, etc.
  • a metal material of higher hardness e.g. chromium, nickel, zinc, etc.
  • the technological conditions are as follows: the concentration-of chromium solution is 150 ⁇ 250 g/L, operating temperature is generally 50 ⁇ 60° C. and current density is generally 40 ⁇ 60 A/dm 2 .
  • the hardness of die casting blade can generally be raised from around HRC10 to HRC30 and above.
  • the said alloy comprises the aluminum alloy, zinc alloy or other alloys, with the preference of zinc alloy.
  • the die casting mould has a blade-forming cavity, which is of triangle or combination of triangle and rectangle or combination of triangle and trapezoid.
  • the depth of blade-forming cavity is greater than or equal to 2.5 mm, with an included angle at its sharp end being smaller than or equal to 60°.
  • the sharp wall of the said blade-forming cavity can be formed either by combination of two mould pieces or through the machining on either of moulds.
  • the blade-forming cavity should have a vent hole, which is used to discharge air when the alloy solution is filled into the cavity so as to avoid producing any air-trapped die casting product or any such item as produced due to insufficient solution in the cavity.
  • the cover die or ejector die of the said die-casting mould is joined together with a replaceable core piece.
  • the said core piece is drilled with a hole for fitting an insert block.
  • On the end face-of the insert block is machined a blade-forming-groove corresponding to the blade shape of pattern cutter.
  • the present invention has the following advantageous effects.
  • Simple and rational construction This pattern cutter comprises a base and cutting blade of one-piece structure.
  • the construction has been further simplified, whereas the existing pattern cutter that needs the base and cutting blade to be machined separately, then embedded and assembled. And as compared with the prior art, it is more rational and there will be no such accidents that the blade breaks loose from the base due to improper installation. So, it is safer in operation.
  • Easy to make and low in cost The present invention utilizes die-casting process to produce pattern cutter, with a high production rate. Generally the output is 240 pieces per hour per unit. The use of the present invention can greatly increase work efficiency, reduce product cost and improve economy efficiency. (3) High product accuracy and good consistency.
  • the present invention adopts a mould in production. So long as the machining accuracy of the mould and corresponding production conditions are guaranteed, the products that are turned out can have rather high processing quality, with less product errors and good consistency. (4) Good adaptability.
  • the pattern cutters for cutting the different shapes of patterns can be formed only by changing the shape of core seat in the mould, with a wide range of adaptability.
  • FIG. 1 is the schematic view showing the construction of pattern cutter of the present invention.
  • FIG. 2 is the schematic view showing the back construction of the pattern cutter as shown in FIG. 1 .
  • FIG. 3 is the schematic view showing the construction of the die casting mould for forming the pattern cutter as shown in FIG. 1 .
  • FIG. 4 is the schematic view showing the construction of the A core piece of the die casting mould as shown in FIG. 3 .
  • FIG. 5 is the top view of A core piece as shown in FIG. 4 .
  • FIG. 6 is the schematic view showing another construction of the pattern cutter of the present invention.
  • FIG. 1 and FIG. 2 show the concrete construction of the pattern cutter of the present invention.
  • the pattern cutter is composed of the base 1 and cutting blade 2 .
  • the base 1 is an arc plate with a certain radian.
  • the cutting blade 2 is located on the base 1 , with the surface of its cutting edge being in parallel to that of base 1 (both being of arc curved surface).
  • the cutting blade 2 forms a penguin pattern shape to be cut.
  • the said base 1 and cutting blade 2 are of one-piece construction.
  • the specific cross sectional structure is shown in E-E view of FIG. 1 .
  • the cutting blade 2 has a cross sectional shape similar to triangle (the exact shape is the combination of triangle and trapezoid).
  • the height of cutting blade 2 is 3 mm on the base 1 .
  • the cutting blade 2 has an angle of 30° at the cutting edge.
  • the holding legs 3 are integrally made on the said base 1 at the other side opposite to the surface where the cutting blade 2 is located, as shown in FIG. 2 .
  • the said holding legs 3 are used for connection with other fittings or for hand held purpose in operation.
  • FIG. 3 ?? FIG. 5 show the concrete structure of the die casting mould for processing the aforesaid penguin pattern cutter.
  • the die casting mould comprises the ejector die 4 and cover die 5 .
  • On the ejector die 4 is fitted a B core piece 6 .
  • On the B core piece 6 there are two protruding arc surfaces 6 - 1 , which are symmetrical to each other.
  • On the arc surfaces 6 - 1 there are concave holes 6 - 2 for forming the holding legs 3 on the back of pattern cutter.
  • On the cover die 5 A core piece 7 is fitted. In the two square throughholes of the A core piece 7 , the identical square insert blocks 8 are fitted respectively.
  • each square insert block 8 On one end of each square insert block 8 is machined a blade-forming groove 9 of penguin shape, as shown in FIG. 5 .
  • the blade-forming groove 9 close to the edge of square throughhole is mated with that-of the square throughhole of A core piece 7 by means of the insert block 8 , as shown in FIG. 4 .
  • the rest of the blade-forming groove 9 is machined to shape on the end face of the insert block 8 separately.
  • the whole cross sectional dimensions and shape of the blade-forming groove 9 are the same as the blade that is to be formed.
  • the said A core piece 7 is mated with B core piece 6 as to form an integral mould cavity.
  • the mould cavity comprises the blade-forming cavity and base cavity which are communicated to each other.
  • the push rod 10 is connected to the mould cavity so as to push out the die casting product after it is formed.
  • the lateral cavity has also a vent hole used to discharge air when the alloy solution is being filled into the cavity.
  • the base cavity is through with the pouring opening 12 by way of pouring passage 11 .
  • the said pouring openings 12 are symmetrically arranged on the symmetrical spindles in the central round throughholes of A core piece 7 .
  • the said pouring passage 11 is almost of conical construction, which is formed by mating the pouring head piece 13 and C core piece 14 symmetrically arranged via a shaft.
  • the die-casting machine pours the 400° C. zinc alloy solution into the cavity of the mould through the pouring opening under the pressure of 25 ⁇ 40 MPa.
  • the die casting product can then be taken out after the pressure has been maintained and cooled to shape.
  • the die casting piece can be chromium plated.
  • the concentration of chromium plating solution is 200 g/L, at the operating temperature of 55° C. and the current density of 50 A/dm 2 .
  • the hardness of the blade of pattern cutter can be raised to HRC 30 and above.
  • FIG. 6 shows another construction of the pattern cutter as set forth in the present invention.
  • this pattern cutter comprises a base 1 and cutting blade 2 .
  • the base 1 is a flat plate, with the cutting blade 2 located on the base 1 .
  • the surface for the cutting edge of the blade is in parallel to that of the base 1 (both of them being of plane).
  • the cutting blade 2 forms the circular pattern shape that is to be cut.
  • the said base 1 and the cutting blade 2 are of one-piece structure.
  • the specific cross sectional structure is as shown in G-G view of FIG. 6 .
  • the cross sectional shape of the cutting blade 2 is of triangle.
  • the height of the cutting blade 2 is 4 mm on the base 1 .
  • the blade 2 has an angle of 40° at the cutting edge.
  • the cutting blade 2 is surfaced with a chromium-plating coat 15 .
  • the methods for manufacturing the pattern cutter as set forth in the present working example are the same as those in the working example 1 in addition to the following features.
  • the alloy material that is used is the aluminum alloy.
  • the cutting blade is surface treated with chromium plating after the die-casting product is taken out from the mould.
  • the concentration of chromium plating solution is 250 g/L, the operating temperature is 60° C., and the current density is 60 A/dm2. After chromium plating treatment, the hardness of cutting blade of the pattern cutter is raised to HRC 30 and above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Knives (AREA)
US11/182,915 2004-07-16 2005-07-15 Pattern cutter, its processing methods and moulds Abandoned US20060042419A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB200410028111XA CN100371178C (zh) 2004-07-16 2004-07-16 图案裁剪器的制备方法
CN200410028111.X 2004-07-16

Publications (1)

Publication Number Publication Date
US20060042419A1 true US20060042419A1 (en) 2006-03-02

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US11/182,915 Abandoned US20060042419A1 (en) 2004-07-16 2005-07-15 Pattern cutter, its processing methods and moulds

Country Status (9)

Country Link
US (1) US20060042419A1 (ja)
EP (1) EP1782898A4 (ja)
JP (1) JP2008506538A (ja)
CN (1) CN100371178C (ja)
AU (1) AU2005263272A1 (ja)
BR (1) BRPI0513387A (ja)
CA (1) CA2573087A1 (ja)
NZ (1) NZ553155A (ja)
WO (1) WO2006007787A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070186747A1 (en) * 2005-12-21 2007-08-16 Faye Angevine Die cutter
US20120253504A1 (en) * 2011-03-30 2012-10-04 Brother Kogyo Kabushiki Kaisha Cutting apparatus, cutting data processing device and cutting control program therefor
US9874899B2 (en) 2014-12-02 2018-01-23 Michael Oliveira Devices and methods for dispensing hand sanitizer
US20180111282A1 (en) * 2015-06-24 2018-04-26 Brother Kogyo Kabushiki Kaisha Cut data generating apparatus, cut data generating method, and non-transitory recording medium storing cut data generating program
CN114619518A (zh) * 2020-12-11 2022-06-14 中国科学院大连化学物理研究所 一种自适应模切装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108982144B (zh) * 2018-08-10 2021-05-25 甘肃路桥建设集团有限公司 一种高效制备土工织物力学性能试样装置
CN112720697A (zh) * 2020-12-26 2021-04-30 隆扬电子(昆山)股份有限公司 一种模切机模架结构

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US9874899B2 (en) 2014-12-02 2018-01-23 Michael Oliveira Devices and methods for dispensing hand sanitizer
US10203719B2 (en) 2014-12-02 2019-02-12 Michael Oliveira Devices and methods for dispensing hand sanitizer
US10571955B2 (en) 2014-12-02 2020-02-25 Michael Oliveira Devices and methods for dispensing hand sanitizer
US11163329B2 (en) 2014-12-02 2021-11-02 Michael Oliveira Devices and methods for dispensing hand sanitizer
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EP1782898A4 (en) 2008-03-05
NZ553155A (en) 2010-03-26
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WO2006007787A1 (fr) 2006-01-26
EP1782898A1 (en) 2007-05-09

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