GB532990A - Improved feed mechanism for presses, punching and cutting machines - Google Patents

Improved feed mechanism for presses, punching and cutting machines

Info

Publication number
GB532990A
GB532990A GB2687839A GB2687839A GB532990A GB 532990 A GB532990 A GB 532990A GB 2687839 A GB2687839 A GB 2687839A GB 2687839 A GB2687839 A GB 2687839A GB 532990 A GB532990 A GB 532990A
Authority
GB
United Kingdom
Prior art keywords
shafts
rack
brackets
rolls
feed
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
Application number
GB2687839A
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.)
Individual
Original Assignee
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
Application filed by Individual filed Critical Individual
Priority to GB2687839A priority Critical patent/GB532990A/en
Publication of GB532990A publication Critical patent/GB532990A/en
Expired legal-status Critical Current

Links

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
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

532,990. Cutting presses. STRONG. A. G. O., and GOLDING, W. F. Sept. 29, 1939, No. 26878. [Class 31 (i)] A cutting or punching press such as one wherein the sheet material is fed in from one end, the waste fed out at the other end and the cut out parts delivered to one side comprises pairs of feed rolls such as 1, 7 and 2, 8 the lower rolls of which are mounted in stationary frames 5, 6 and the upper rolls in brackets 11, 12 mounted on shafts 13, 14 free to rotate in the frames. The shafts 9, 10 of the upper rolls 7, 8 have pinions engaging pinions on the shafts 1.3, 14 and the shaft 13 has another pinion engaging a rack 23 reciprocted by a crank 24, shaft 14 being driven from shaft 13 by means of another rack. Brake blocks such as 16, Fig. 4, carried by the pivoted brackets are spring-pressed to engage the shafts 13, 14 so that upward movement of the rack 23 acts first to lift the brackets about their shafts to the Limit allowed by arms 26, 27 thereon contacting with stops 28, 29 and then to drive the feed rolls 7, 8 in reverse direction whilst out of contact with the material, downward movement of the rack causing the brackets 11, 12 to be lowered and the feed rolls 7, 8 then to be rotated to feed the material. ' Each pair of stop surfaces 28, 29 are diverging and adjustable relatively to the stop arms 26, 27 to adjust the lowering of the brackets according to the thickness of the material and the crank 24 is adjustable to vary the length of feed. The strip material is fed between adjustable side guides 40 on to a reciprocating push plate 32 against a back stop 34 and its front end on the next stroke of the push plate 32 is carried under check fingers 42, 43 but still clear of the feed rolls 1, 7. On the next stroke of the push plate the strip contacts a second back stop 33 and is then carried to exact position between the still open feed rolls ready to be fed forward thereby at the next down stroke of the rack.
GB2687839A 1939-09-29 1939-09-29 Improved feed mechanism for presses, punching and cutting machines Expired GB532990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2687839A GB532990A (en) 1939-09-29 1939-09-29 Improved feed mechanism for presses, punching and cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2687839A GB532990A (en) 1939-09-29 1939-09-29 Improved feed mechanism for presses, punching and cutting machines

Publications (1)

Publication Number Publication Date
GB532990A true GB532990A (en) 1941-02-04

Family

ID=10250633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2687839A Expired GB532990A (en) 1939-09-29 1939-09-29 Improved feed mechanism for presses, punching and cutting machines

Country Status (1)

Country Link
GB (1) GB532990A (en)

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