US2723117A - Strip material gripping and feeding devices for machines - Google Patents

Strip material gripping and feeding devices for machines Download PDF

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Publication number
US2723117A
US2723117A US153208A US15320850A US2723117A US 2723117 A US2723117 A US 2723117A US 153208 A US153208 A US 153208A US 15320850 A US15320850 A US 15320850A US 2723117 A US2723117 A US 2723117A
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US
United States
Prior art keywords
carrier
base
strip material
plate
gripping
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
US153208A
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English (en)
Inventor
Clark George Frederick
Clark John George
Clark Richard Walter
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.)
GEORGE FREDERICK CLARK
Original Assignee
GEORGE FREDERICK CLARK
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 GEORGE FREDERICK CLARK filed Critical GEORGE FREDERICK CLARK
Application granted granted Critical
Publication of US2723117A publication Critical patent/US2723117A/en
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Expired - Lifetime legal-status Critical Current

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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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material

Definitions

  • a further object is to provide means whereby the feed of the material may be adjusted to suit various requirements.
  • the invention still further consists in fitting at the rear end of the base a fulcrumed spring pressed plate adapted to permit forward or feed movement of the strip but to so engage the strip as to prevent rearward or backward movement of the strip.
  • Fig. 2 is a side elevation showing the relative position of the parts at the termination of a feeding stroke
  • Fig. 3 is a plan of Fig.2;
  • the gripping and feeding device for attachment to, for instance, a press tool or machine comprises a base casting 1 of substantially rectangular shape having 2 a longitudinally extending guideway 2 for a slidably mounted carrier Shaving a pivoted gripping plate 4 under which strip material such as strip metal indicated at a is adapted to be fed in the manner to be hereinafter described.
  • the carrier 3 in the form of an L-shaped block is secured such as by Welding on a plate member 5.
  • This plate 5 which is of rectangular shape is machined to provide opposite side surfaces 6 and a base surface 7 to slide in the guideway 2 of U-shape which is machined to provide co-operating side wall surfaces 8 and base surfaces 9.
  • the carrier 3 is frictionally held in the guideway 2 by resilient means such by a spring plate 10 co-operating with machined surfaces 11 at each side of a longitudinal slot 12 cut in the guideway 2 the said spring plate being held by a centrally arranged bolt 13 screwed into the plate member 5 of the carrier 3.
  • the carrier 3 may be held by a spring pressed washer mounted on a downwardly projecting screw.
  • a coiled spring is mounted on the screw and the spring has abutments on the underside of the head of the screw depending from the carrier .and on the said washer.
  • the base of the carrier 3 is provided with a rod-like extension 14 which extends longitudinally of the base and out through an aperture in the end wall 15 of the base casting 1.
  • the gripping plate 4 having a knife or inclined edge blade portion 23 is attached by bolts 24 to a carrier 25 formed with rod-like side extensions 26 at its upper end. These extensions 26 are movable in recesses 27 formed on the upper side of the arms 21 of the U-shaped bracket 20. Each recess 27 is shaped to provide a pair of seatings 28 and 29 the rear seating 29 being lower than the other and connected by a curved ramp which is struck from. a fulcrum point 34) of the gripping plate for the purposes to be hereinafter explained.
  • the gripping plate 4 extends at each eiid beyond the body of its carrier 2:3 and these extensions provide the fulcrum points 30 which engage in recesses 31 formed in the underside of the arms 21 of the U-shaped bracket 25).
  • a pair of links 32 which are connected through the medium of a cross-shaft 3.3 to the arms 34 of a pair of bellcrank levers 35 which have their other arms 36 mounted on a cross-shaft 37 carried by the base casting 1.
  • the intermediate fulcrums of the belicrank levers 35 are mounted on a cross shaft 33 and connected by a pair of links 39 to a cam operated cross-shaft 40 carried by levers 41 mounted on another cross-shaft 42 carried by the base casting 1.
  • the cam operated shaft 40 is preferably fitted with a roller 43 t0 co-opcrate with a cam or the like on the press tool or machine.
  • This lower edge is chamfered at 48 and the mounting of this plate 45 is such as to permit forward movement of the strip material but to prevent its rearward movement.
  • the plate 45 is conveniently spring pressed by a coiled spring 4-9 mounted on a bolt 50 pivotally secured to the gate 47.
  • This gate 47 may be fitted with a pair of adjustable guide members 51 to restrict the width of the gate opening to the width of, the strip material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US153208A 1949-04-05 1950-03-31 Strip material gripping and feeding devices for machines Expired - Lifetime US2723117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2723117X 1949-04-05

Publications (1)

Publication Number Publication Date
US2723117A true US2723117A (en) 1955-11-08

Family

ID=10914148

Family Applications (1)

Application Number Title Priority Date Filing Date
US153208A Expired - Lifetime US2723117A (en) 1949-04-05 1950-03-31 Strip material gripping and feeding devices for machines

Country Status (2)

Country Link
US (1) US2723117A (enrdf_load_stackoverflow)
GB (1) GB666170A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960163A (en) * 1955-05-05 1960-11-15 Handley John High speed perforators for recording information
US3844152A (en) * 1972-01-25 1974-10-29 Vallourec Lorraine Escaut Continuous drawing bench

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1007236A (en) * 1911-05-08 1911-10-31 Joseph A Poirier Binding-paper-feed mechanism.
US1305343A (en) * 1919-06-03 Feeding devi c e for stay
US1407699A (en) * 1921-04-09 1922-02-28 Marian John Automatic feed for punch presses
US1690512A (en) * 1927-11-25 1928-11-06 Perfection Package Sealer Comp Gummed-tape-serving machine
US1826498A (en) * 1929-12-13 1931-10-06 Rose Patch And Label Co Label strip feeding means for printing presses
US1968479A (en) * 1933-01-23 1934-07-31 Hubert E Dickerman Work feeding mechanism
US2250530A (en) * 1938-04-21 1941-07-29 Fred Goat Co Inc Feed mechanism
US2278921A (en) * 1941-04-26 1942-04-07 Fischer Charles Strip stock feed mechanism
US2381571A (en) * 1944-11-18 1945-08-07 Elmer E Buchan Feeder for die presses
US2397833A (en) * 1944-09-29 1946-04-02 Associated Patentees Inc Slide feed
US2444706A (en) * 1944-07-25 1948-07-06 Loew Sigmund Slide fastener machine
US2514554A (en) * 1948-01-24 1950-07-11 Stanley L Nowelsky Strip feeding apparatus

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1305343A (en) * 1919-06-03 Feeding devi c e for stay
US1007236A (en) * 1911-05-08 1911-10-31 Joseph A Poirier Binding-paper-feed mechanism.
US1407699A (en) * 1921-04-09 1922-02-28 Marian John Automatic feed for punch presses
US1690512A (en) * 1927-11-25 1928-11-06 Perfection Package Sealer Comp Gummed-tape-serving machine
US1826498A (en) * 1929-12-13 1931-10-06 Rose Patch And Label Co Label strip feeding means for printing presses
US1968479A (en) * 1933-01-23 1934-07-31 Hubert E Dickerman Work feeding mechanism
US2250530A (en) * 1938-04-21 1941-07-29 Fred Goat Co Inc Feed mechanism
US2278921A (en) * 1941-04-26 1942-04-07 Fischer Charles Strip stock feed mechanism
US2444706A (en) * 1944-07-25 1948-07-06 Loew Sigmund Slide fastener machine
US2397833A (en) * 1944-09-29 1946-04-02 Associated Patentees Inc Slide feed
US2381571A (en) * 1944-11-18 1945-08-07 Elmer E Buchan Feeder for die presses
US2514554A (en) * 1948-01-24 1950-07-11 Stanley L Nowelsky Strip feeding apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960163A (en) * 1955-05-05 1960-11-15 Handley John High speed perforators for recording information
US3844152A (en) * 1972-01-25 1974-10-29 Vallourec Lorraine Escaut Continuous drawing bench

Also Published As

Publication number Publication date
GB666170A (enrdf_load_stackoverflow)

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