GB1175707A - Stock Advancing Device for Punch Presses and the like - Google Patents

Stock Advancing Device for Punch Presses and the like

Info

Publication number
GB1175707A
GB1175707A GB1250867A GB1250867A GB1175707A GB 1175707 A GB1175707 A GB 1175707A GB 1250867 A GB1250867 A GB 1250867A GB 1250867 A GB1250867 A GB 1250867A GB 1175707 A GB1175707 A GB 1175707A
Authority
GB
United Kingdom
Prior art keywords
head
stock
valve
pistons
conduits
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
GB1250867A
Inventor
Albert Willis Scribner
Original Assignee
Albert Willis Scribner
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
Priority to US543762A priority Critical patent/US3329327A/en
Application filed by Albert Willis Scribner filed Critical Albert Willis Scribner
Publication of GB1175707A publication Critical patent/GB1175707A/en
Expired legal-status Critical Current

Links

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
    • 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

Abstract

1,175,707. Metal strip feeds. A. W. SCRIBNER. 17 March, 1967 [25 March, 1966], No. 12508/67. Headings B3B and B2W. Areciprocating gripperstock feeding apparatus comprises a main frame including a main body member 20, a feed head 23 reciprocable on the frame, a stock gripper 34 mounted on the feed head, a stock clamp 35 mounted on the body, a first fluid motor for reciprocating the feed head, a second fluid motor for actuating the stock gripper, a third fluid motor for actuating the stock clamp; first, second and third conduits connected to the corresponding motors and to a control valve which applies pressure fluid simultaneously to all three motors to effect movement in one direction of the feed head and exhausts fluid simultaneously from all three motors to effect the other stroke of the apparatus. The feed head 23 slides on rails 21 secured to the body 20, its movement being limited in the feeding direction by the body and in the return direction by an adjustable screw 26. The feed is secured to the piston rod 51 of a piston 61, Fig. 6, which slides in a cylinder 60 formed in the body. The gripper 34 comprises a bar 37 which is secured to the piston rods 38, Fig. 3, of pistons 39 sliding in doubleacting cylinders formed in the feed head. The undersides 43 of the pistons are connected by a conduit 42 and hence by a tube 53 and a passage 57 to the control valve. The clamp 35 similarly comprises a bar 70 mounted on the piston rods of two single acting pistons which slide in bores formed in the body. Springs under the pistons bias the bar 70 to an upper position in which it is clear of the stock. and the upper sides of the pistons are connected together and to conduits 76, 76a which communicates with the passage 57. A further conduit 64 connects the left-hand end, as seen in Fig. 1, of the cylinder 60 to the passage 57. The conduits 42, 76, 76a and 64 are all connected to one side of the control valve. The righthand end of the cylinder 60 and the upper side of the pistons 39 are permanently connected to the source of fluid pressure so that the apparatus is biased to a condition in which the clamp 35 is raised clear of the stock by its spring loaded pistons. the gripper 34 is engaging the stock and the feed-head is abutting the body 20. As the machine operates the valve is moved to a second position in which the pressure fluid is admitted to the conduits 42, 64, 76 and 76a and since the fluid is then acting on both sides of the pistons 61 and 39 the force on the annulus side of the piston will be less than the force on the full diameter side. The clamp 35 therefore closes on to the stock, the gripper 34 opens and the feed head is moved towards the screw stop 26. Control valve construction. Fig. 11.-A vertical bore 100 in the body 20 receives a valve head 106 which is connected to a stem 107 slidable inside a valve sleeve 105, which itself slides in a block 102 fastened to the body 20. There is a compression spring 112 between the head of the stem 107 and a cap 113 screwed on to the sleeve. An exhaust port 114 opens into the annular space between the lower end of the sleeve and the upper surface of the valve head 106. A passage 116, 117, 120 and 121 which also opens into the space is connected to the conduits 64, 76 and 76a and by a passage 57 to the conduit 42. The upper surface of the valve head carries a sealing ring which engages the block 102 and the head itself has four axial grooves in its edge which permit fluid to flow by the head. The chamber under the valve head is permanently connected by an aperture 107 and a conduit 84 to the pressure fluid source, so that the valve head is maintained in a raised position. Valve operation.-With the valve in the normal raised position the conduits 42, 64, 76 and 76a communicate with the exhaust port 114. As the machine operates the cap 113 is depressed and moves the sleeve 105 down to close the exhaust port. When the spring 112 is fully compressed, the stem 107 and the valve head 106 move downwardly so that the sealing ring moves away from the block 102 and air passes by the four axial grooves to the passageway 116, 117, 120, 121 and hence to the conduits 57, 64, 76 and 76a, so that the clamp 35 is lowered on to the stock, the gripper 34 is raised and the feed head moves to the right.
GB1250867A 1966-03-25 1967-03-17 Stock Advancing Device for Punch Presses and the like Expired GB1175707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US543762A US3329327A (en) 1966-03-25 1966-03-25 Stock advancing device for punch presses and the like

Publications (1)

Publication Number Publication Date
GB1175707A true GB1175707A (en) 1969-12-23

Family

ID=24169463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250867A Expired GB1175707A (en) 1966-03-25 1967-03-17 Stock Advancing Device for Punch Presses and the like

Country Status (3)

Country Link
US (1) US3329327A (en)
DE (1) DE1602547B2 (en)
GB (1) GB1175707A (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485430A (en) * 1967-06-23 1969-12-23 Albert W Scribner Stock feeder
US3429493A (en) * 1967-07-19 1969-02-25 Albert F Lehmann Apparatus for feeding strip metal
US3523632A (en) * 1968-04-11 1970-08-11 Jaybird Automation Inc Work feed mechanism
US3561657A (en) * 1968-09-20 1971-02-09 Albert W Scribner Stock feeder
US3583268A (en) * 1970-05-15 1971-06-08 Albert W Scribner High speed stock feeder
JPS50134084U (en) * 1974-04-19 1975-11-05
US3999610A (en) * 1974-11-21 1976-12-28 Otis Engineering Corporation Pipe snubbing method and apparatus
US4076161A (en) * 1976-05-10 1978-02-28 Scribner Albert W Stock feeder for punch presses and the like
JPS5323980U (en) * 1976-08-07 1978-02-28
USRE31183E (en) * 1976-11-03 1983-03-22 Terminal forming and installing apparatus
US4206861A (en) * 1976-11-03 1980-06-10 Brown Maurice H Terminal forming and installing apparatus
DE2711693C3 (en) * 1977-03-17 1985-11-21 Otto 8959 Trauchgau De Bihler
US4175688A (en) * 1978-01-23 1979-11-27 Scribner Albert W Semi-automatic stock feeder
US4195761A (en) * 1978-05-30 1980-04-01 Scribner Albert W Pneumatic feeder for punch presses and the like
DE2851746C2 (en) * 1978-11-30 1983-12-08 Kurt Stoll Kg, 7311 Neidlingen, De
DE2858045C1 (en) * 1978-11-30 1986-09-25 Festo Kg Belt feeder
US4290541A (en) * 1979-03-13 1981-09-22 Scribner Albert W Control system for pneumatic punch press feeders
US4318762A (en) * 1980-04-21 1982-03-09 Victor United, Inc. Method and apparatus for sequentially forming a molded product
US4351462A (en) * 1981-01-09 1982-09-28 Scribner Albert W Pneumatic feeder for punch presses and the like
US4444346A (en) * 1982-03-01 1984-04-24 Scribner Albert W Pneumatic feeder for punch presses
US4449083A (en) * 1982-06-21 1984-05-15 Wayne H. Coloney Co., Inc. Stagger feed control circuit
US4513899A (en) * 1982-08-10 1985-04-30 Plessey Incorporated Stock feeder with adjustable width feed path
US4770331A (en) * 1982-10-29 1988-09-13 Planet Products Corporation Sheet forming machine
US5125550A (en) * 1990-06-25 1992-06-30 Scribner Albert W Pneumatically operated feeder for strip stock
CN102873219A (en) * 2011-07-16 2013-01-16 浦俊华 Numerical control workbench for precision hydraulic combined punching and shearing machine
CN104803160A (en) * 2014-01-23 2015-07-29 苏州瀚川机电有限公司 High-speed feeding mechanism
CN106825290A (en) * 2015-12-04 2017-06-13 重庆银聪科技有限公司 A kind of punch press feeding device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2397974A (en) * 1943-09-15 1946-04-09 Bowdil Company Cutting machine
US2484729A (en) * 1947-01-24 1949-10-11 Republic Steel Corp Feeding apparatus for straightening machines
US2703711A (en) * 1949-09-01 1955-03-08 H B Armstrong Pressure fluid controlled stock feeder for punch presses
US3038645A (en) * 1959-07-06 1962-06-12 Mechanical Tool & Engineering Stock feed mechanism

Also Published As

Publication number Publication date
DE1602547A1 (en) 1970-08-13
DE1602547B2 (en) 1976-12-23
US3329327A (en) 1967-07-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee