US3839935A - Blank punching apparatus - Google Patents

Blank punching apparatus Download PDF

Info

Publication number
US3839935A
US3839935A US00323413A US32341373A US3839935A US 3839935 A US3839935 A US 3839935A US 00323413 A US00323413 A US 00323413A US 32341373 A US32341373 A US 32341373A US 3839935 A US3839935 A US 3839935A
Authority
US
United States
Prior art keywords
turret
product
blanks
scrap
slug
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.)
Expired - Lifetime
Application number
US00323413A
Other languages
English (en)
Inventor
D Daniels
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.)
AMADA Ltd
AMADA LTD US
Original Assignee
AMADA Ltd
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 AMADA Ltd filed Critical AMADA Ltd
Priority to US00323413A priority Critical patent/US3839935A/en
Priority to CA185,507A priority patent/CA991534A/en
Priority to JP668374A priority patent/JPS5632044B2/ja
Application granted granted Critical
Publication of US3839935A publication Critical patent/US3839935A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12—Punching using rotatable carriers
    • 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
    • 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
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2081—Gravity type
    • 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
    • Y10T83/22—Means to move product laterally
    • Y10T83/2205—Reciprocating 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
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2209—Guide
    • Y10T83/2216—Inclined conduit, chute or plane
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8727—Plural tools selectively engageable with single drive
    • Y10T83/8732—Turret of tools

Definitions

  • Turret-type punch presses employ rotatable upper and lower turrets with the upper turret supporting a variety of punches and the lower turret supporting a variety of corresponding dies.
  • Beneath the lower turret is a hollow cylindrical member which supports the lower turret.
  • the turret support is provided with a slug discharge passage for ejection of slugs cut by the various tools.
  • the slug passage opening in the lower turret supporting member was of necessity provided with an opening large enough to receive the largest blank to be punched. If the blank diameter was extremely large, then the opening in the lower turret supporting member was correspondingly large and left a considerable unsupported span on the lower turret. Since this weakened the overall strength of the machine, the blanking dies sizes had to be reduced or the lower turret undesirably thickened.
  • rotatable upper and lower turrets respectively carrying punches and dies, one of which is a blanking punch and die and positionable at a punching station on the apparatus.
  • the lower turret is supported by a member which is provided with a slug discharge passage.
  • the slug discharge passage is smaller than the blanking die opening so that the unsupported span of the lower turret is minimized.
  • the blanks punched by the blanking tool are collected and discharged along a path separate from the slugs so that they remain segregated from the slugs during the punching operation.
  • FIG. 1 is a side elevation of a punching apparatus embodying the principles of the invention with parts broken away for clarity.
  • FIG. 2 is a section taken along the line 22 of FIG. ll.
  • FIG. 3 is a fragmentary plan taken along the line 33 of FIG. 1.
  • FIG. 4 is a fragmentary side elevation taken along the line 4-4 of FIG. 1 with parts broken away for clarity.
  • FIG. 5 is a fragmentary illustration of a typical workpiece from which blanks and slugs are cut along the lines illustrated.
  • the punching apparatus includes a frame 10 on which is rotatably mounted an upper turret l2 and lower turret 14.
  • the upper turret includes a plurality of various types of punches 16 including a blanking punch 18.
  • the lower turret carries a plurality of corresponding dies 20 including a blanking die 22.
  • the turrets are rotated together to position the various tools beneath a ram striker 24 at a punching station.
  • a worksheet W is positionable between the turrets.
  • a typical rotatable turret-type punching apparatus suitable for use in this invention, is illustrated in US. Pat. No. 3,685,380, entitled MULTI-TRACK TUR- RET AND OVERLOAD PROTECTION.
  • a workpiece is divided into multiple parts or blanks B which are separated from the workpiece after first punching the slugs S from the workpiece.
  • the blanks are collected and discharged or ejected to the side of the turret whereas the slugs fall downwardly and are discharged below the turret.
  • other ejection techniques are possible with the important concept being that the slugs and blanks are segregated at the time of punching.
  • FIG. 1 illustrates a conventional blanking punch 18 having a stripper 30 and a punch body 31.
  • the die 22 is provided with a die body 34 and a die holder 36.
  • the die has a removable section 38 which can be pivoted open about a pivot 39 to release the die body.
  • the die holder 36 is provided with an ejection channel or passage 40 for side discharge of the blanks B.
  • the upper surface of the lower turret beneath the channel 40 is provided with guide tracks 42.
  • a slider 44 is reciprocably mounted on the guide tracks and is connected to the piston rod of a pneumatic cylinder 46.
  • extension of the piston rod will push a blank or a stack of blanks through the channel 34 and into a blank discharge chute 46.
  • operation of the air cylinder is programmed to operate by tape command every 5 or 10 blanking strokes to thus eject several blanks simultaneously.
  • the lower turret 14 is supported from the base frame 10 by a turret support 50.
  • the support is provided with a slug passage 52. Slugs fall through the slug passage 52 and through an opening 54 in the frame 10. Preferably the slugs are then collected on a discharge chute 56 and allowed to slide away from the punching apparatus where they are finally collected at a location separate from the discharge of the chute 46.
  • the lower turret 14 is unsupported in the area overlying the slug passage 52. It can be readily seen that the strength of the lower turret is dependent upon the amount of support received by the turret support 50 and that the larger the unsupported area, the weaker the turret.
  • the segregation of blanks from the slug allows the slug passage 52 to be no larger than the maximum slug size to be punched. In one embodiment, for example, this diameter is 4 /2 inches whereas the blanking die diameter is 6 inches.
  • Apparatus for punching large product blanks at a punching station in a turret-type punch press comprising a frame, an upper rotatable turret on the frame having a plurality of tools, one of which is a product blanking punch, positionable at said punching station, a lower rotatable turret on the frame having a plurality of dies corresponding to said punches and positionable at said punching station, means on said frame at said punching station for supporting the lower turret and for receiving scrap slugs punched from said worksheet by said tools, and means independent of said scrap slug receiving means for removing product blanks punched through said blanking die without the product blanks passing to said scrap slug receiving means for segregating the product blanks from the scrap slugs.
  • said product blank removing means including ejector means for pushing the product blanks radially outwardly of the turret.
  • said product blank removing means including a discharge chute for receiving the ejected product blanks and carrying the product blanks away from the lower turret.
  • said ejector means including a pneumatic ram, a slider connected to said ram and having lower guide surfaces, guide tracks on said lower turret engageable by said guide surfaces for guiding said slider against said product blanks and out from beneath said lower turret.
  • said lower turret supporting means including a scrap slug discharge opening for receiving said scrap slugs.
  • said product blanking die having an opening for cutting the product blanks, said scrap slug discharge opening being considerably smaller than said die opening whereby the unsupported span of the lower turret overlying said slug opening is minimized.
  • Apparatus for punching product blanks at a punching station in a turret-type punch press comprising a frame, an upper rotatable turret on the frame having a plurality of tools, one of which is a product blanking punch, positionable at said punching station, a lower rotatable turret on the frame having a plurality of dies corresponding to said punches and positionable at said punching station, scrap slug collecting means, means on said frame at said punching station-for sup porting the lower turret and for passing the scrap slugs punched from said worksheet by said tools to said scrap slug collecting means, and means for collecting product blanks independent of said scrap slug collecting means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00323413A 1973-01-15 1973-01-15 Blank punching apparatus Expired - Lifetime US3839935A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00323413A US3839935A (en) 1973-01-15 1973-01-15 Blank punching apparatus
CA185,507A CA991534A (en) 1973-01-15 1973-11-09 Blank punching apparatus
JP668374A JPS5632044B2 (ja) 1973-01-15 1974-01-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00323413A US3839935A (en) 1973-01-15 1973-01-15 Blank punching apparatus

Publications (1)

Publication Number Publication Date
US3839935A true US3839935A (en) 1974-10-08

Family

ID=23259108

Family Applications (1)

Application Number Title Priority Date Filing Date
US00323413A Expired - Lifetime US3839935A (en) 1973-01-15 1973-01-15 Blank punching apparatus

Country Status (3)

Country Link
US (1) US3839935A (ja)
JP (1) JPS5632044B2 (ja)
CA (1) CA991534A (ja)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441391A (en) * 1983-04-27 1984-04-10 At&T Technologies, Inc. Apparatus for severing an article from a carrier and for positioning the severed article
US4497194A (en) * 1982-06-14 1985-02-05 United States Steel Corporation Method and apparatus for performing multiple closed and semi-closed operations on an open die press
US4662864A (en) * 1984-04-28 1987-05-05 Lemo M. Lehmacher & Sohn Gmbh Maschinenfabrik Apparatus for stacking and padding plastic bags
US4694716A (en) * 1986-02-28 1987-09-22 Kansai Environmental Development Co., Ltd. Machine for cutting solid bodies
US4942797A (en) * 1988-11-07 1990-07-24 Sankyo Oilless Industry, Inc. Programmable controlled turnblanking machine
US5245900A (en) * 1990-04-18 1993-09-21 Siegfried Dojnik Die press unloader
US5483857A (en) * 1993-09-20 1996-01-16 Bi-Link Metal Specialties Workpiece finishing and presentation machine
EP1195207A2 (en) * 2000-10-04 2002-04-10 Murata Kikai Kabushiki Kaisha Turret punch press
USD668279S1 (en) * 2012-06-22 2012-10-02 Brown Michael C Rivet removal tool set
CN103252439A (zh) * 2013-05-20 2013-08-21 内蒙古北方重工业集团有限公司 制坯压机镦粗台装置
CN111097830A (zh) * 2019-12-30 2020-05-05 东莞市飞尧科技有限公司 一种间歇旋转传动的冲压模具

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5375587A (en) * 1976-12-14 1978-07-05 Nec Corp Sheet metal cutting apparatus
JPS5951721U (ja) * 1982-09-29 1984-04-05 大石産業株式会社 段ボ−ル箱
JPS6046918U (ja) * 1984-06-06 1985-04-02 アンリツ株式会社 タレットパンチプレス機
JPH0226819Y2 (ja) * 1985-03-29 1990-07-20

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701017A (en) * 1950-09-20 1955-02-01 Wiedemann Machine Company High-speed follower gauge and punch
US3138322A (en) * 1962-09-18 1964-06-23 Louis J Orlando Perforator
US3323400A (en) * 1965-03-15 1967-06-06 Freeway Washer & Stamping Comp Kicker mechanism for stamping press

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701017A (en) * 1950-09-20 1955-02-01 Wiedemann Machine Company High-speed follower gauge and punch
US3138322A (en) * 1962-09-18 1964-06-23 Louis J Orlando Perforator
US3323400A (en) * 1965-03-15 1967-06-06 Freeway Washer & Stamping Comp Kicker mechanism for stamping press

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497194A (en) * 1982-06-14 1985-02-05 United States Steel Corporation Method and apparatus for performing multiple closed and semi-closed operations on an open die press
US4441391A (en) * 1983-04-27 1984-04-10 At&T Technologies, Inc. Apparatus for severing an article from a carrier and for positioning the severed article
US4662864A (en) * 1984-04-28 1987-05-05 Lemo M. Lehmacher & Sohn Gmbh Maschinenfabrik Apparatus for stacking and padding plastic bags
US4694716A (en) * 1986-02-28 1987-09-22 Kansai Environmental Development Co., Ltd. Machine for cutting solid bodies
US4942797A (en) * 1988-11-07 1990-07-24 Sankyo Oilless Industry, Inc. Programmable controlled turnblanking machine
US5245900A (en) * 1990-04-18 1993-09-21 Siegfried Dojnik Die press unloader
US5483857A (en) * 1993-09-20 1996-01-16 Bi-Link Metal Specialties Workpiece finishing and presentation machine
EP1195207A2 (en) * 2000-10-04 2002-04-10 Murata Kikai Kabushiki Kaisha Turret punch press
EP1195207A3 (en) * 2000-10-04 2003-08-13 Murata Kikai Kabushiki Kaisha Turret punch press
US6988436B2 (en) * 2000-10-04 2006-01-24 Murata Kikai Kabushiki Kaisha Turret punch press
USD668279S1 (en) * 2012-06-22 2012-10-02 Brown Michael C Rivet removal tool set
CN103252439A (zh) * 2013-05-20 2013-08-21 内蒙古北方重工业集团有限公司 制坯压机镦粗台装置
CN111097830A (zh) * 2019-12-30 2020-05-05 东莞市飞尧科技有限公司 一种间歇旋转传动的冲压模具

Also Published As

Publication number Publication date
JPS5632044B2 (ja) 1981-07-25
JPS49103287A (ja) 1974-09-30
CA991534A (en) 1976-06-22

Similar Documents

Publication Publication Date Title
US3839935A (en) Blank punching apparatus
US3969918A (en) Method and apparatus for blanking coil stock for transfer presses
US4546683A (en) Method of and a cutting press for separating parts from a workpiece plate
US3683834A (en) Container forming apparatus
US3889563A (en) Apparatus for trimming and removing the flashing from phonograph records
US2828792A (en) Reticulating apparatus
CN218693089U (zh) 一种钣金件生产设备
CN214442328U (zh) 一种空调压缩机上壳体打孔装置
GB936753A (en) Improvements in or relating to a press
JP3700569B2 (ja) タレットパンチプレス
CN213701416U (zh) 一种面盖自动加工包装设备
CN219520290U (zh) 一种冲压模具自动排废料装置
JPS609527A (ja) ワツシヤの総抜型
SU1606238A1 (ru) Штамп последовательного действи
CN218532491U (zh) 一种具有产品码垛功能的冲压机构
CN211591471U (zh) 纸箱生产用打孔装置
JPH02182332A (ja) プレス機械のスクラップ処理装置
JP2001300646A (ja) パンチプレス
CN218744338U (zh) 一种用于料带自动含料传送的退料装置
CN217831442U (zh) 灭火器封头部件一次落料成型工装
SU1238875A1 (ru) Штамп дл многопозиционной штамповки
CN216262981U (zh) 具主动式退料的多模多冲程成型机
SU958014A1 (ru) Комбинированный штамп дл выполнени разделительных и формообразующих операций на прессах двойного действи
CN206677019U (zh) 一种信报箱箱门连续冲压机床
JPS598878Y2 (ja) プレス装置