US2275561A - Work removing apparatus for presses - Google Patents

Work removing apparatus for presses Download PDF

Info

Publication number
US2275561A
US2275561A US357453A US35745340A US2275561A US 2275561 A US2275561 A US 2275561A US 357453 A US357453 A US 357453A US 35745340 A US35745340 A US 35745340A US 2275561 A US2275561 A US 2275561A
Authority
US
United States
Prior art keywords
work
arm
jaws
press
machine
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
US357453A
Inventor
Sahlin Henry
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to US357453A priority Critical patent/US2275561A/en
Application granted granted Critical
Publication of US2275561A publication Critical patent/US2275561A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • 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

Description

March 10, 1942.

WORK REMOVING APPARATUS FOR A PRESS Filed Sept. 19, 1940 3 Sheets-Sheet l x h c .J 5 [I' l]! I h" Ill" W I" W H. SAHLIN 2,275,561

March 10, 1942.

H. SAHLIN WORK REMOVING APPARATU S FOR A PRESS s Sheets-Sheet 2 Filed Sept. 19, 1940 INVENIOR.

H. SAHLfN 2,275,561

Filed Sept. 19, 1940 3 Sheets-Sheet 5 WORK REMOVING APPARATUS FOR A PRESS March 10, 1942.

b .4. WWW Q\ Patented Maia-1Q, 1942 2,275,561

UNITED STATES PATENT OFFICE WORK REMOVING APPARATUS FOR PRESSES Henry Sahlin, Detroit, Micln, assignor to Genera] Motors Corporation, Detroit, Mich., a corporation of Delaware Application September 19, 1940, Serial No. 357,453 Claims. (Cl. 113-50) This invention relates to material handling and in Fig. 1, where the work is designated W. As

, has for its object material ejecting apparatus the ram rises, the knock-out portion 5 of the designed to be used with metal stamping presses female die rises relatively to the lower die (as and to be automatically operated by the press is shown in Figs. 2 and 3). This knocks out and particularly by the up and down movement 5 or releases the work W. As the ram rises, the of the ram of the press. cam 24 strikes the trip arm 25 that controls the Referring to the drawings: fluid valve 26. This allows fluid to pass through Fig. 1 is a side elevation of the apparatus pipe 2| to the left end of cylinder l9, causing shown in connection with a press, the latter p st to travel to t e right own in being shown in a sketchy diagrammatic way. 10 Fig. 5). This causes the open jaws II and I2 'Fig. 2 is a similar view of the apparatus after to straddle the edge of the work which has been the work has been released from the die and knocked out of the' lower die (as shown in Fig. the apparatus has gripped the work. 2). As the jaws are pushed to the right to Fig. 3 is a similar view of the apparatus as straddle the work, the upper arm 28 of the bell the same is in process ofpulling the work out crank lower arm ll strikes the shoulder 21 at of the press. i the end of the arm l5. This causes the lower Fig. 4 is a detail view of the gripping arm, jaw to revolve on pivot l6 counter-clockwise and together with the gripping jaws in open position. thereby the la s are brought ogether to g Fig, 5 is a similar view showing the jaws in the work. As the ram rises, the projecting roller closed position, 29 strikes the upper end 30 of the pivoted arm 6. Fig. 6 is a section on the line 6-6 of Fig, 5, This has a cam surface 3| adapted to ride along I designates the rain of the press and 2 desigt ro 29 and the arm is Caused t0 Swing nates the bed'of the press. The ram is provided out o h dotted line position wn in i 3 with a suitable punching die 3 and the bed of where the arm is over the traveling conveyor the press with a suitable female die 4. This has 3 At this p n the p arm d ps ff cam a portion 5 which acts as a knock-out or release 2 n h id f h as wn by he dotted at the proper time. The usual knockt; pins line position A in Fig. 3. This allows the spring may be substituted for this arrangement, A 33 to return the fluidcontrol valve to the released knock-out, however, is not always required beposition and allows the air to exhaust through cause in some instances the work hand itself the a as Shown by the arrows n Figs. 1 and can be used as a knock-out device, 3. Spring 20 returns piston l8 to the left hand A heavy pendant arm 6 is pivoted at 'l and, position (as shown in Fig. 4) and the jaws sepa- 'when not actuated, swings down to the vertical rate (as Shown in 4 nd n dotted lines in position how at a i Fi 3, a, stop 9 being Fig.3). This drops the work onto the conveyor provided to prevent its overswinging against the 32 Which is Continuously o press. This arm carries the work gripping arm It is poss y altering t Cam Surfaces, to I 0 which is provided with tw jaw H a d I2, swing the arms 6 out to substantially horizontal each provided with a toothed or serrated gripposition where the work will bedropped in such ping piece I3 removably secured in place by away that it inverts itself, if this be desired. screws II. The upper jaw is arranged to slide 40 I claim:

in the guideway IS on the arm Ill. The lower 1. In an apparatus for removing work from a jaw is in the form of a bell crank lever and is press or other like machine, the combination pivoted at l6 to the sliding upper jaw member. with two relatively movable members such as The sliding upper jaw is connected to the end the ram and bed of a press, a swinging pendant of a piston rod I! which, in turn, is connected mm supported at the side of the machine and to piston l8 that slides in cylinder I 9. Spring having at its lower end a pair of jaws for grip- 20 tends to keep the piston to the left of its ping the work, the movable member of the mastroke. Pipe 2| connects with the left hand end chine arranged in its upward movement to cause of the cylinder. Pin 22 holds the bell crank the pendant arm to swing upwardly and outlever or lower jaw member II in the open posi- 5O wardly into a position away from the press and tion shown in Fig. 4. means for causing the jaws to grip the work be- The operation of the machine is as follows: fore the arm swings upwardly and to p the A piece of sheet metal having been put between work free from the press as the pendant arm the dies, the ram of the press is caused to descend reaches the outward end of its movement, in the usual way and stamps the metal, as shown 2. In an apparatus for removing work from a arranged in its upward movement to cause the pendant arm to swing upwardly and outwardly into a position away from the press and means for causing the jaws to grip the work before the arm swings upwardly and to drop the work free press or other like machine, the combination with 4 two relatively upwardly and downwardly mov able members such as the ram and bed of a press, a swinging pendant arm supported at the from the press as the pendant arm reaches the outward end of its movement, the said last men tioned means comprising a piston and cylinder connected with the jaws for operating the jaws, said cylinder furnished with fluid automatically controlled by the movement of the movable member of the machine.

3. In an apparatus for removing work from a press or other like machine, the combination with two relatively upwardly and downwardly movable members such as the ram and bed of a press, a swinging pendant arm supported at the side of the machine and having at its lower end a pair of jaws for gripping the work, the movable member of the machine arranged in its upward movement to cause the pendant arm to swing upwardly and outwardly and means for causing the jaws to grip the work before the arm swings upwardly and to release the work as the pendant arm reaches the outward end of its movement, the said last' mentioned means comprising a pair of jaws which slide with respect to the arm and one of which is pivoted to the other and provided with an arm portion arranged to be tripped by a shoulder, a piston and fluid cylinder with the piston connected to the sliding jaws to cause the jaws to advance upon the work and straddle the same and the pivoted jaws with the trip arm arranged to engage a shoulder on the pendant arm to cause the pivoted jaws to close one upon the other and upon the work and fluid control means controlled by the movement of the movable member of the press.

4. In an apparatus for removing work from a fill side of the machine and having at its lower end a pair of jaws slidable at a unit on the arm and for gripping the Work, the movable member of the machine arranged in its upward movement to cause the pendant arm to swing upwardly and outwardly and means for causing the jaws to move independently of th arm to straddle the work and to grip the work before the arm swings upwardly and to release the work as the pendant arm reaches the outward end of its movement, the said last mentioned means including a fluid cylinder and piston for causing the jaws to slide with respect to the arm to close upon the work and to release the work and a fluid valvesupported adjacent the side of the machine and having a trip arm and a cam on the movable member of the machine for engaging the trip arm to control the valve which controls the fluid to the piston.

57 In an apparatus for removing stampings from a press, the combination with a machine having a bed and a movable ram having a trip member of a pendant arm pivoted at its upper end and having a portion of the upper end of the arm forming a cam surface to be struck by the member on the ram to swing the arm and the work out from th machine. the lower end of the arm extending at an angle to the pendant portion of the arm and slidable jaws slidable on said arm end and one pivoted with respect to the other and a fluid cylinder and piston for advancing the jaws to a straddling position on the work and one of the jaws pivoted and provided with a trip portion adapted to engage a stationary portion of the arm when the jaws have been slidably advanced to the straddling position to cause the jaws to close upon the work and a valve in proximity to the ram and controlled by the movement thereof to regulate the nuid'supply and the exhaust from the fluid cylinder.

HENRY SAHLIN.

US357453A 1940-09-19 1940-09-19 Work removing apparatus for presses Expired - Lifetime US2275561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US357453A US2275561A (en) 1940-09-19 1940-09-19 Work removing apparatus for presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US357453A US2275561A (en) 1940-09-19 1940-09-19 Work removing apparatus for presses

Publications (1)

Publication Number Publication Date
US2275561A true US2275561A (en) 1942-03-10

Family

ID=23405658

Family Applications (1)

Application Number Title Priority Date Filing Date
US357453A Expired - Lifetime US2275561A (en) 1940-09-19 1940-09-19 Work removing apparatus for presses

Country Status (1)

Country Link
US (1) US2275561A (en)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520196A (en) * 1948-08-06 1950-08-29 Gardiner S Boone Transferring device
US2562247A (en) * 1949-12-15 1951-07-31 Robert Van Schie Sheet metal feeding device
US2609776A (en) * 1948-02-11 1952-09-09 Sahlin Henry Loading and unloading apparatus
US2657426A (en) * 1949-04-22 1953-11-03 Anchor Hocking Glass Corp Closure making machine
US2670090A (en) * 1950-08-15 1954-02-23 Crawley Automatic discharge apparatus for book rounding machines and the like
US2677342A (en) * 1954-05-04 Work removing apparatus
US2694994A (en) * 1950-05-27 1954-11-23 Cooper Weymouth Inc Air operated ejector for presses
US2743478A (en) * 1951-10-31 1956-05-01 Rca Corp Automatic molding apparatus
US2755759A (en) * 1951-07-09 1956-07-24 American Flange & Mfg Locating and ejecting mechanism
US2763229A (en) * 1951-08-30 1956-09-18 Sahlin Henry Loading and unloading apparatus
US2811266A (en) * 1953-05-21 1957-10-29 Udal John Davy Means for transferring work pieces to or from a cutting or shaping press
US2828998A (en) * 1958-04-01 Work jaw means
US2837814A (en) * 1955-09-30 1958-06-10 Western Electric Co Apparatus for assembling insulating washers on relay cores
US2853737A (en) * 1954-06-29 1958-09-30 Rca Corp Automatic molding apparatus
US2867185A (en) * 1955-12-15 1959-01-06 Lobdell Emery Mfg Company Transfer mechanism
US2868582A (en) * 1959-01-13 loisell
US2891596A (en) * 1953-07-08 1959-06-23 Babcock & Wilcox Co Manipulating mechanism for heavy duty metal working presses
US2910321A (en) * 1957-02-18 1959-10-27 Sehn Gripper mechanism for material handling device
US2948417A (en) * 1955-05-26 1960-08-09 Arnt U Haanes Workpiece handling device
US2988773A (en) * 1958-04-23 1961-06-20 Western Electric Co Apparatus for removing molded articles from molds
US3013835A (en) * 1959-04-01 1961-12-19 Leland F Blatt Power operated jaw assembly
US3040685A (en) * 1962-06-26 Work-handling means for power-presses and like machines
US3070049A (en) * 1960-04-01 1962-12-25 United Mattress Machine Co Inc Frame changing device for quilting machine
US3102502A (en) * 1959-01-21 1963-09-03 Taylor Winfield Corp Screw operated expander
US3149851A (en) * 1960-12-29 1964-09-22 Vulcan Iron Works Pulling adapter
US3246616A (en) * 1962-09-10 1966-04-19 Machinery Automation Res Corp Seam folding and pressing means associated with article moving and removal means
DE1275278B (en) * 1961-12-08 1968-08-14 Fahr Ag Maschf An apparatus for inserting metal parts in compression molding press machines, presses and injection-molding machines
US3686952A (en) * 1970-06-17 1972-08-29 Takeo Hitosugi Universal automatic bending press
US3966038A (en) * 1972-04-07 1976-06-29 Abbott Laboratories Continuous automated plastic molding apparatus
US5349843A (en) * 1992-08-06 1994-09-27 Buhrke Industries, Inc. Overhead belt discharge apparatus for container end closures
WO2018094451A1 (en) * 2016-11-27 2018-05-31 Bishop Steering Technology Pty Ltd Die apparatus for forging steering racks

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677342A (en) * 1954-05-04 Work removing apparatus
US3040685A (en) * 1962-06-26 Work-handling means for power-presses and like machines
US2868582A (en) * 1959-01-13 loisell
US2828998A (en) * 1958-04-01 Work jaw means
US2609776A (en) * 1948-02-11 1952-09-09 Sahlin Henry Loading and unloading apparatus
US2520196A (en) * 1948-08-06 1950-08-29 Gardiner S Boone Transferring device
US2657426A (en) * 1949-04-22 1953-11-03 Anchor Hocking Glass Corp Closure making machine
US2562247A (en) * 1949-12-15 1951-07-31 Robert Van Schie Sheet metal feeding device
US2694994A (en) * 1950-05-27 1954-11-23 Cooper Weymouth Inc Air operated ejector for presses
US2670090A (en) * 1950-08-15 1954-02-23 Crawley Automatic discharge apparatus for book rounding machines and the like
US2755759A (en) * 1951-07-09 1956-07-24 American Flange & Mfg Locating and ejecting mechanism
US2763229A (en) * 1951-08-30 1956-09-18 Sahlin Henry Loading and unloading apparatus
US2743478A (en) * 1951-10-31 1956-05-01 Rca Corp Automatic molding apparatus
US2811266A (en) * 1953-05-21 1957-10-29 Udal John Davy Means for transferring work pieces to or from a cutting or shaping press
US2891596A (en) * 1953-07-08 1959-06-23 Babcock & Wilcox Co Manipulating mechanism for heavy duty metal working presses
US2853737A (en) * 1954-06-29 1958-09-30 Rca Corp Automatic molding apparatus
US2948417A (en) * 1955-05-26 1960-08-09 Arnt U Haanes Workpiece handling device
US2837814A (en) * 1955-09-30 1958-06-10 Western Electric Co Apparatus for assembling insulating washers on relay cores
US2867185A (en) * 1955-12-15 1959-01-06 Lobdell Emery Mfg Company Transfer mechanism
US2910321A (en) * 1957-02-18 1959-10-27 Sehn Gripper mechanism for material handling device
US2988773A (en) * 1958-04-23 1961-06-20 Western Electric Co Apparatus for removing molded articles from molds
US3102502A (en) * 1959-01-21 1963-09-03 Taylor Winfield Corp Screw operated expander
US3013835A (en) * 1959-04-01 1961-12-19 Leland F Blatt Power operated jaw assembly
US3070049A (en) * 1960-04-01 1962-12-25 United Mattress Machine Co Inc Frame changing device for quilting machine
US3149851A (en) * 1960-12-29 1964-09-22 Vulcan Iron Works Pulling adapter
DE1275278B (en) * 1961-12-08 1968-08-14 Fahr Ag Maschf An apparatus for inserting metal parts in compression molding press machines, presses and injection-molding machines
US3246616A (en) * 1962-09-10 1966-04-19 Machinery Automation Res Corp Seam folding and pressing means associated with article moving and removal means
US3686952A (en) * 1970-06-17 1972-08-29 Takeo Hitosugi Universal automatic bending press
US3966038A (en) * 1972-04-07 1976-06-29 Abbott Laboratories Continuous automated plastic molding apparatus
US5349843A (en) * 1992-08-06 1994-09-27 Buhrke Industries, Inc. Overhead belt discharge apparatus for container end closures
WO2018094451A1 (en) * 2016-11-27 2018-05-31 Bishop Steering Technology Pty Ltd Die apparatus for forging steering racks

Similar Documents

Publication Publication Date Title
US3630391A (en) Work gripper
US1907532A (en) Mount making machine
US2677342A (en) Work removing apparatus
US2763229A (en) Loading and unloading apparatus
US2240630A (en) Safety device for presses
US2020660A (en) Bolt making machine
US2499124A (en) Apparatus for protecting operating parts of vises from chips or other refuse incidental to machine work
US2609776A (en) Loading and unloading apparatus
GB2063122A (en) Steel section feeder
US3714870A (en) Dual grip actuating unit with travel cylinder assembly
US4280786A (en) Feed mechanism
US1174446A (en) Electric metal-working apparatus.
US3178040A (en) Work handling apparatus
US2100028A (en) Transfer mechanism
US2693235A (en) Machine for feeding and shearing metal ribbon material
US3081657A (en) Longitudinally reciprocating measuring means and strip treating apparatus
US1555652A (en) Pliers
US1972595A (en) Automatic cut-off machine
US2910321A (en) Gripper mechanism for material handling device
US2736238A (en) moncrieff
GB1384197A (en) Workpiece handling devices
US2692384A (en) Magazine hand tool
US2929499A (en) Mandrel manipulation apparatus
US3972211A (en) Bar end dropper for forging machines or the like
GB1386833A (en) Apparatus for the removal of formed articles from an article forming machine