US3802013A - Bolt press with punch carrier pivotally mounted on a reciprocatory press carriage - Google Patents

Bolt press with punch carrier pivotally mounted on a reciprocatory press carriage Download PDF

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Publication number
US3802013A
US3802013A US00271242A US27124272A US3802013A US 3802013 A US3802013 A US 3802013A US 00271242 A US00271242 A US 00271242A US 27124272 A US27124272 A US 27124272A US 3802013 A US3802013 A US 3802013A
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US
United States
Prior art keywords
press
cam disc
punch
bolt
punch carrier
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
US00271242A
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English (en)
Inventor
H Nebendorf
K Sieben
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.)
HILGELAND GEB
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HILGELAND GEB
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 HILGELAND GEB filed Critical HILGELAND GEB
Application granted granted Critical
Publication of US3802013A publication Critical patent/US3802013A/en
Anticipated expiration legal-status Critical
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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/14—Ejecting devices

Definitions

  • ABSTRACT A bolt press with reciprocable press carriage having a punch carrier pivotally mounted thereon, and an ejecting device arranged within the press carriage for the punch means.
  • the ejecting device is drivingly connected to a cam disc mounted on a splined shaft, while additional cam discs and a two-arm lever for driving the punch carrier are arranged outside the press carriage approximately in the plane of the punch carrier.
  • the present invention relates to a bolt press with a punch carrier which is pivotally mounted on a reciprocatory press carriage, and in which a two-arm lever is non-rotatably connected to the punch carrier for pivoting about the same axis about which the punch carrier is pivotable.
  • the two-arm lever is provided with two rollers for respective cooperation with two cam discs arranged one behind the other on a profiled splined shaft.
  • a bolt press of this type is disclosed, for instance, in German Pat. No. 1,527,465.
  • the bolt press according to the invention is characterized primarily in that in the press carriage there isprovided an ejector mechanism for the punches which ejector mechanism is operatively connected to a cam discwhich is mounted on a profiled splined shaft, and is furthermore characterized in that the cam disc and a two-arm lever which is non-rotatably connected to a pivotally mounted punch carrier andis intended for operating the punch carrier are located outside the press carriage approximately in the plane of the punch carrier. In this way, in the interior of the press, carriage space is provided for the ejector mechanism without the necessity for'this purpose to extend the length of the press carriage.
  • the ejector mechanism is for purposes of actuating the ejector pin provided with a pivotable angle lever which is journalled in the press carriage-and is pivotable about a pivot axis which extends transverse to the plane passing through the axes of the profiled splined shaft and of the ejector pin.
  • a spring-urged ejector pin Resting against one arm of the angle lever is a spring-urged ejector pin which is journalled in the press carriage, whereas the other arm of the angle lever carries a rollerfor cooperation with the cam disc, this arm extending approximately in the pressing direction.
  • This specific embodiment fits well into the space provided in the press carriage when the cam disc and the two-arm lever for driving the punch carrier are located outside the press carriage as suggested in conformity with the present invention.
  • relatively high forces will occur in the drive of the ejector mechanism which forces may result in a premature wear, especially of the roller cooperating with the cam disc and also with regard to the journaling of the roller and the cam disc.
  • the structure shown therein comprises a presscarriage l which is mounted in a machine frame 3 and is adapted tobe reciprocated by means of a connecting rod 2.
  • a punch carrier 4 which is pivotable in a direction transverse to the upsetting direction of the bolt press.
  • punch carrier 4 is by means of non-ilustrated connecting elements firmly connected to a two-armleverS.
  • the punch carrier 4 firmly connected to the two-arm lever 5 is journalled on a shaft 6 and is secured by a to permit a relative movement of shaft 14 with regard to the drive wheel 17.
  • a cam disc 18 which is preferably pot-shaped.
  • the cam disc 18 is engaged by a roller 19 which is journalled on the arm 20 of an angle lever 21.
  • the cam roller 19 is in engagement with a portion of the cam disc 18 which portion surrounds the splined shaft 14 and, more specifically, the profiled portion 16 thereof.
  • the other arm 22 of the angle lever 21 has its end provided with a bolt 24 having a flattened portion 23.
  • Bolt 24 is arranged in the arm 22 so as to be rotatable about an axis which is parallel to the pivot axis 25 of the angle lever 21.
  • An ejector pin 26 rests against the flattened portion 23 of bolt 24.
  • a pressure spring 28 acts upon the collar 27 of the ejector pin 26 which widens toward one end.
  • an additional pressure spring 29 acts upon the angle lever 21 and, on one hand, engages a bearing portion 30 of the press carriage 1 and, on the other hand, engages an extension 31 of the angle lever 21. In this way, the cam roller 19 will always be kept in contact with the cam disc 18.
  • the ejector mechanism described above is preferably employed in connection with bolt presses which in addition to the above described double cam disc for controlling the punch carrier also comprises a locking mechanism known per se and designated with the referonce numerals 32, 33 and 34 for the end positions of 30 What we claim is:
  • said ejecting device includes a spring loaded ejector pin and also includes a pivotable angle lever pivotally journalled in said press carriage for actuating said ejector pin, the pivot axis of said angle lever extending transverse to the plane defined by the axis of said splined shaft means and the axis of said ejector pin, said third roller means being for cooperative engagcmentwith said third cam disc means, one arm of said angle lever carrying said roller means and the other arm of said angle lever having said spring loaded ejector pin resting thereagainst.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
US00271242A 1971-07-15 1972-07-13 Bolt press with punch carrier pivotally mounted on a reciprocatory press carriage Expired - Lifetime US3802013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2135405A DE2135405B2 (de) 1971-07-15 1971-07-15 Auswerferanordnung an einer Doppeldruckpresse, deren Stempelträger um eine am Pressenschlitten vorgesehene Achse schwenkbar und gegebenenfalls in den Endstellungen arretierbar ist

Publications (1)

Publication Number Publication Date
US3802013A true US3802013A (en) 1974-04-09

Family

ID=5813789

Family Applications (1)

Application Number Title Priority Date Filing Date
US00271242A Expired - Lifetime US3802013A (en) 1971-07-15 1972-07-13 Bolt press with punch carrier pivotally mounted on a reciprocatory press carriage

Country Status (4)

Country Link
US (1) US3802013A (de)
CS (1) CS195651B2 (de)
DE (1) DE2135405B2 (de)
GB (1) GB1384252A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091486A (en) * 1976-02-20 1978-05-30 Kalt Manufacturing Company Punch knock-out mechanism for header
US4145784A (en) * 1977-09-15 1979-03-27 Textron Inc. Timed ejector for a header
US4161113A (en) * 1978-04-11 1979-07-17 The National Machinery Company Knockout adjustment mechanism for forging machines
US4538437A (en) * 1984-06-25 1985-09-03 The National Machinery Company Forging machine kickout drive with running adjustment
US4735080A (en) * 1986-01-22 1988-04-05 Eumuco Aktiengesellschaft Fur Maschinenbau Forming machine with ram-side ejector mechanism
US5848547A (en) * 1996-05-31 1998-12-15 The National Machinery Company Cassette tooling
EP0950449A2 (de) * 1998-04-17 1999-10-20 Carlo Salvi & C. S.r.l. Vorrichtung zum Auswerfen von metallischen Werkstücken
US6658913B1 (en) * 1998-04-17 2003-12-09 Hatebur Umformmaschinen Ag Multistage metal-forming machine tool having tool combination blocks

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904278A1 (de) * 1989-02-14 1990-08-16 Schuler Gmbh L Antrieb fuer einen in einem stoessel einer mechanischen umformpresse verschieblich gelagerten, patrizenseitigen auswerfer
DE3911061A1 (de) * 1989-04-06 1990-10-11 Istvan Bartha Federnde druckhuelse mit formkopf

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599053A (en) * 1946-05-15 1952-06-03 Nat Machinery Co Cold header
US2705333A (en) * 1952-10-10 1955-04-05 Nat Machinery Co Reciprocating punch and die apparatus with stripper mechanism
US3264853A (en) * 1963-04-26 1966-08-09 Fritz Bernhard Hatebur Press for forming work pieces from wire and bar stock
US3353417A (en) * 1964-10-08 1967-11-21 Hilgeland Fa Geb High speed double blow header
US3477075A (en) * 1965-08-19 1969-11-11 Textron Inc Method of making set screws
US3688322A (en) * 1970-07-08 1972-09-05 Nedschroef Octrooi Maats Machine for upsetting bolts and similar articles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599053A (en) * 1946-05-15 1952-06-03 Nat Machinery Co Cold header
US2705333A (en) * 1952-10-10 1955-04-05 Nat Machinery Co Reciprocating punch and die apparatus with stripper mechanism
US3264853A (en) * 1963-04-26 1966-08-09 Fritz Bernhard Hatebur Press for forming work pieces from wire and bar stock
US3353417A (en) * 1964-10-08 1967-11-21 Hilgeland Fa Geb High speed double blow header
US3477075A (en) * 1965-08-19 1969-11-11 Textron Inc Method of making set screws
US3688322A (en) * 1970-07-08 1972-09-05 Nedschroef Octrooi Maats Machine for upsetting bolts and similar articles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091486A (en) * 1976-02-20 1978-05-30 Kalt Manufacturing Company Punch knock-out mechanism for header
US4145784A (en) * 1977-09-15 1979-03-27 Textron Inc. Timed ejector for a header
US4161113A (en) * 1978-04-11 1979-07-17 The National Machinery Company Knockout adjustment mechanism for forging machines
US4538437A (en) * 1984-06-25 1985-09-03 The National Machinery Company Forging machine kickout drive with running adjustment
US4735080A (en) * 1986-01-22 1988-04-05 Eumuco Aktiengesellschaft Fur Maschinenbau Forming machine with ram-side ejector mechanism
US5848547A (en) * 1996-05-31 1998-12-15 The National Machinery Company Cassette tooling
EP0950449A2 (de) * 1998-04-17 1999-10-20 Carlo Salvi & C. S.r.l. Vorrichtung zum Auswerfen von metallischen Werkstücken
EP0950449A3 (de) * 1998-04-17 2001-04-04 Carlo Salvi & C. S.r.l. Vorrichtung zum Auswerfen von metallischen Werkstücken
US6658913B1 (en) * 1998-04-17 2003-12-09 Hatebur Umformmaschinen Ag Multistage metal-forming machine tool having tool combination blocks

Also Published As

Publication number Publication date
CS195651B2 (en) 1980-02-29
DE2135405B2 (de) 1974-08-08
GB1384252A (en) 1975-02-19
DE2135405A1 (de) 1973-01-25

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