US723400A - Feed mechanism. - Google Patents

Feed mechanism. Download PDF

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Publication number
US723400A
US723400A US10540302A US1902105403A US723400A US 723400 A US723400 A US 723400A US 10540302 A US10540302 A US 10540302A US 1902105403 A US1902105403 A US 1902105403A US 723400 A US723400 A US 723400A
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United States
Prior art keywords
lever
feed
gripping
carrier
plunger
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Expired - Lifetime
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US10540302A
Inventor
Irvine K Mackenzie
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CONSOLIDATED FASTENER Co
CONS FASTENER Co
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CONS FASTENER Co
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Application filed by CONS FASTENER Co filed Critical CONS FASTENER Co
Priority to US10540302A priority Critical patent/US723400A/en
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Publication of US723400A publication Critical patent/US723400A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11Advancing 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

Description

No. 723,400. PATBNTED MAR. 24, i903.

I. K. MAOKENZIB.

I FEED MECHANISM.

APPLIoATloN FILED APR. so. 1902.

no MODEL. 2 SHEETS-s112111' 1.

Vi/IT @55:55:v AIEA.' Il T 7:.

No. 723,400. PATENTED MAB.. 24, 1 903.

I. K. MAOKENZIE.

FEED MEGHA'NISM. AAAAAAAAAAAAAAAAA PB. ao. 1902.

press, and B the reciprocating plunger' of UNITED STAT-Es PATENT OFFOICE.

IRVINE K. MACKENZIE, OF BOSTON, MASSACHUSETTS, ASSIGN OR TO THE CONSOLIDATED FASTENER COMPANY, OF PORTLAND, MAINE.

FEED MECH'ANISM.

SPECIFICATION forming part of Letters Patent No. 723,400, dated March 24, 1903. Application filed April 30, 41902.y Serial No. 105,403. (No model.)

To all whom, it may concern; K

Beit known that I, IRVINE K. MACKENZIE, a citizen of the United States, residing at Bos-V ton, in the county of Suolk and Commonwealth of Massachusetts, have invented a new and useful Improvement in Feed Mechanisms, of which the following is a full specication.

My invention relates to power-presses or other machines in which one or more operations are performed upon a strip of metal or other material passing through the machine; and it consists in a new and improved mechanism whereby the said strip of metal or other material is by the movement of the machine itself intermittently fed through the machine, thereby allowing the operation or operations to be performed upon new portions of the strip of material, which are successively and regularly presented to the tool or tools.

I have shown my feed mechanism as applied to a power-press; but it is clearly adaptable as wellv to, any machine where an intermittent feed is required.

Referring to the accompanying drawings, wherein like letters represent like parts, Figure lis a front elevation of a power-press provided with myv improved feed mechanism. Fig. 2 is a vertical central longitudinal section of my improved feed mechanism. Fig. 3 is a vertical cross-section of same on'the line 3 3. Fig. 4 is an end elevation of same as viewed from the right-hand side in Fig. l.

In the drawings, A is the frame of a powersame.

C is a tool or punch carried bythe plunger B, which cooperates with a suitable stationary die D Vand stamps or punches the strip of material E, which is fed beneath the punch C by means of the feed mechanism X, as hereinafter described.

' My feed mechanism consists of the base G, secured to the frame of the machine A, the sliding carrier H, the gripping-lever I, the bell-crank J, the lugs K and K2 on the plunger B, vthe locking-lever L, and the guides M M. The carrier H slides in the base G, being held in place by the gibs g g, Fig. 3, and is moved back and forth by the grippinglever I, swiveled to the carrier II at i' and i actuated'by the be1lcrank J, which is pivoted to the machine-frame at j and in turn given-a reciprocating motion by contact with the lugs K' K2 on the plunger B of the machine.

VThe.gripping-lever I oscillates slightly on its pivot fr', the amount of oscillation being limited by the pin h, fixed to the carrier H and working in the slot i in the lever I. The lever I has on its under surface the grippingrib 2.

The stock E to be fed is passed between the two adjustable guide-rolls M M and undcr the locking-lever L, arranged as shown, and held in position by the spring Z, so that it allows the free movement of the stock toward the press, but prevents the slightest motion in the opposite direction, any pull in this direction tending to bring the lever nearer to an upright position, and thus grip the stock more firmly between its lower end and the base G. The stock is then passed through the carrier H beneath the grippingrib i2 of the gripping-lever I, and thence between the dies C D of the press.

The action of the'feed is as follows: As the plunger B of the press descends lthe lug K engages with the end of theb'ell-crank J, carrying its lower end, together with the gripping-lever I and carrier H, away from the center of the press. At the same time the gripping-lever I is oscillated slightly on its pivot t' sufficiently to lift the gripping-rib 2 up off of the stock beneath it. The carrier thus slides back over the stock, which is.

firmly held against any motion in the same direction by the lever L, as above described. During the upward movement ofthe plunger B the lug K2 engages with the bell-crank J, carrying its lower end, with the leverL y and carrier H, toward the center of the press. In this movement it will be seen that the lever I is oscillated-in the other direction, throwing the gripping-rib Q12 downfontothe stock and rmly pinching it against the bottom of the carrier H and feeding it toward the dies C and D. This pinching movement of the lever I is obtained by reason of the piv` otally mounting of said lever and the connection therewith of the bell-.crank lever J at the point shown. When the plunger is moving ICO upward, the movement of the bell-crank lever primarily moves the lever I on its pivotuntil contact is made with the material being fed, thereby forming a gripping-surface held under the force of the movement of the plunger and insuring the feed of the strip. After this combined engagement (that of the gripping-jaw and ot the bell-crank With the plunger) a further movement of the plunger causes the carrier to be moved bodily. It will be seen that the bell-crank J does not necessarily share the entire movement of the plunger B, as the lugs are spaced some distance apart. I provide the lugs K K2 with the set-screws 7c 71:2, which may be adjusted to engage with the bell-crank at the desired position of the plunger and a tine adjustment of the feed thus secured. y

By the arrangement of the pivots and gripping-rib i2 of the lever I an extremely firm grip is obtained on the stock, the Whole power required to move the carrier and stock being multiplied and exerted directly in the grip upon the stock, so that slipping is practically impossible.

I claiml. In a feed mechanism, a sliding carrier having an oscillating gripping-lever and connecting mechanism in combination with the reciprocating part of a machine, said gripping -lever binding upon the material being fed with the entire force of movement of the reciprocating part, substantially as described.

2. In a feed mechanism, a sliding carrier having an oscillating gripping-lever and connecting mechanism in combination with a locking-lever and the reciprocating part of a machine, said gripping-lever binding upon the material being fed with the entire force of movement of the reciprocating part, substantially as described.

3. In a feed mechanism, a sliding carrier having an oscillating gripping-lever and connecting mechanism in combination with a locking-lever and the reciprocating part of a machine and adjustable lugs secured to the reciprocating part so as to engage the free end of the bell-crank lever, said gripping-lever binding upon the material being fed with the entire force of movement of the reciprocating part, substantially as described.

4. A feed mechanism consisting of a carrier I-I having an oscillating gripping-lever I, a locking-lever L, and a bell-crank J, in combination with a reciprocating plunger having the adjustable bell-crank-engaging lugs K and K2, the connection between the lever I and bell-crank J causing said lever to be primarily moved to grip the material, this gripping being continued during the feed movement of the carrier, all arranged as and for the purposes substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses,'on this 6th day of February, A. D. 1902.

IRVINE K. MACKENZIE.

Witnesses:

FRANK G. PARKER, G. A. HOLMES.

US10540302A 1902-04-30 1902-04-30 Feed mechanism. Expired - Lifetime US723400A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510301A (en) * 1947-11-01 1950-06-06 John J Wiegand Cutting apparatus for making stepped cuts
US2514554A (en) * 1948-01-24 1950-07-11 Stanley L Nowelsky Strip feeding apparatus
US2551940A (en) * 1947-08-23 1951-05-08 Graham Amos Stanley Elevator leg belt stop
US2593480A (en) * 1947-07-14 1952-04-22 American Can Co Feeding device for pliable sheet material
US2670953A (en) * 1949-09-01 1954-03-02 Producto Machine Company Stock feeding means
US2693955A (en) * 1949-03-12 1954-11-09 Frederick K Maust Control unit for stock feed
US2696380A (en) * 1948-11-02 1954-12-07 Denison Eng Co Strip feeding mechanism
US2754117A (en) * 1948-05-12 1956-07-10 Aluminum Goods Mfg Company Strip feeding apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593480A (en) * 1947-07-14 1952-04-22 American Can Co Feeding device for pliable sheet material
US2551940A (en) * 1947-08-23 1951-05-08 Graham Amos Stanley Elevator leg belt stop
US2510301A (en) * 1947-11-01 1950-06-06 John J Wiegand Cutting apparatus for making stepped cuts
US2514554A (en) * 1948-01-24 1950-07-11 Stanley L Nowelsky Strip feeding apparatus
US2754117A (en) * 1948-05-12 1956-07-10 Aluminum Goods Mfg Company Strip feeding apparatus
US2696380A (en) * 1948-11-02 1954-12-07 Denison Eng Co Strip feeding mechanism
US2693955A (en) * 1949-03-12 1954-11-09 Frederick K Maust Control unit for stock feed
US2670953A (en) * 1949-09-01 1954-03-02 Producto Machine Company Stock feeding means

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