US3337916A - Compacting press with selective ejection - Google Patents

Compacting press with selective ejection Download PDF

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Publication number
US3337916A
US3337916A US505488A US50548865A US3337916A US 3337916 A US3337916 A US 3337916A US 505488 A US505488 A US 505488A US 50548865 A US50548865 A US 50548865A US 3337916 A US3337916 A US 3337916A
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US
United States
Prior art keywords
platen
platens
die
press
ejection
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
US505488A
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English (en)
Inventor
Joe A Smith
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.)
Cincinnati Shaper Co
Original Assignee
Cincinnati Shaper 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 Cincinnati Shaper Co filed Critical Cincinnati Shaper Co
Priority to US505488A priority Critical patent/US3337916A/en
Priority to GB41290/66A priority patent/GB1149198A/en
Priority to DE1577221A priority patent/DE1577221C3/de
Priority to FR81799A priority patent/FR1502989A/fr
Priority to SE14761/66A priority patent/SE312410B/xx
Application granted granted Critical
Publication of US3337916A publication Critical patent/US3337916A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/027—Particular press methods or systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses

Definitions

  • This invention relates to a compacting press with selective ejection.
  • the press of the present invention is substantially the same as that fully disclosed in Belden Patent No. 3,172,156 granted Mar. 9, 1965
  • the press disclosed in said patent is provided with a core punch and bottom stop arrangement disclosed and claimed in the Iohannigman Patent No. 3,168,759 granted Feb. 9, 1965.
  • FIG. 1 is basically a front elevational view of a press according to the invention, the view being broken down the center to indicate that the parts seen on the righthand of the figure are in a difierent plane than those seen on the left-hand of the figure.
  • FIG. 2 is a fragmentary diagrammatic cross sectional view taken on the line 2-2 of FIG. 1.
  • FIG. 3 is a fragmentary cross sectional view on an enlarged scale taken on the line 33 of FIG. 2.
  • FIG. 4 is a fragmentary diagrammatic cross sectional view taken on the line 44 of FIG. 3.
  • FIG. 5 is a fragmentary elevational view on an enlarged scale as seen from the right of FIG. 4;
  • FIGS. 6, 7, 8, 9 and 10 are diagrammatic views of the sequence of operations in compacting and ejection in the making of a part having a recessed or undercut portion.
  • the ejection rods which release the bottom stops for the various platens are all mounted on the top platen and while the ejection rods for the next lower platen (the intermediate platen in a three platen press) extend only between the top and next lower platens, the ejection rods for platens below the second platen extend through apertures in said second platen and any other platens intermediate the top platen and the platen whose stops they are intended to release.
  • all of the ejection rods are adjustable vertically so that in the full ejection position, the tops of all the lower punches are flush with the feeder table.
  • the press is generally shown in FIG. 1. As there shown, it comprises -a frame 10 and an upper casing 11 which houses the drive motor and eccentric mechanism for the punch and the cam mechanism for the downward movement of the platens during ejection. Since this mechanism is conventional, it will not be described herein.
  • the upper die platen is indicated at 13, the intermediate die platen at 14, and the lower die platen at 15. While a three platen press has been shown in the drawings, it will be understood that the principles disclosed herein apply to a press having any desired number of platens.
  • the reciprocating punch is only shown in FIG. 7 at 16 and it is actuated in an entirely conventional manner.
  • the fixed lower punch is indicated at 17 and if the article to be made is to be hollow, a core punch may be provided at 18 (FIGS. 6 to 10 inclusive).
  • the core punch 18 may be mounted axially within the fixed punch 17 and it may be hydraulically actuated by means of a piston and cylinder subjected to hydraulic pressure in known manner.
  • the platens 14 and 15 are fioatingly mounted on heavy guide rods (not shown) and may be supported b pneumatic and hydraulic pressure in known manner.
  • the uppermost die platen is floatingly supported on other rods, also not shown.
  • the platens 14 and 15 are provided with stop means which are strong enough and rigid enough to withstand the entire load of the press, and means are provided for releasing these stop means at the desired time. These various means will not be disclosed in detail since they are 'clearly disclosed in said Belden and Johannigman patents.
  • the stop rods for the platen 14 are indicated at 23 and the stop rods for the platen 15 are indicated at 24.
  • the stop rods 23 are actuated by the ejection rods 25.
  • the ejection rods for the stop rods 24 are indicated at 26. It will be understood that when the ejection rods 25 abut the stop rods 23, the stop rods 23 are released by the mechanism disclosed in the above identified patents and thus the platen 14 may be forced downward for ejection. Similarly, when the ejection rods 26 abut the stop rods 24, the latter are released so that the platen 15 may be forced downwardly for ejection.
  • the ejection rods 25 were substantially arranged as they are in the present invention, the ejection rods 26 were mounted on the intermediate platen '14 so that the platen 14 had to be released before the platen 15 could be released. According to the present invention, however, the ejection rods 26 are also mounted on the top platen 13 and pass through holes in the platen 14.
  • the ejection rods 25 together are adjustable vertically to vary the gap indicated at A in FIG. 1 and the ejection rods 26 are together adjustable to vary the gap indicated 3 at B in FIG. 1. It will be clear, therefore, that if gap B is smaller than gap A, the platen will be released before the platen 14, which was not possible with a device according to the Belden patent. If the several ejection rods are adjusted, however, to make the gap A smaller than the gap B, then the press will function in the same manner as that of the Belden patent and the platen 14 will be released before the platen 15.
  • the adjustment of the ejection rods and 26 is dependent upon the fill settings of the specific tooling.
  • the ejection rods 25 are together adjustable vertically so that the punch mounted in the intermediate platen is flush with the tooling in the top platen when gap A is closed.
  • ejection rods 26 are together adjustable vertically so that the punch mounted in the lower platen is flush with the tooling in the top platen when gap B is 7 closed.
  • the adjustment for the ejection rods is generally similar to that disclosed in the Belden patent.
  • crank 30 is mounted on a shaft 32 and at its other end is provided with a bevel pinion 34 meshing with another bevel pinion 36 which has mounted fixedly therewith a pinion 38. It will be observed that the parts numbered 33, 35,
  • .37, and 39 correspond to the parts numbered 32, 34, 36,:
  • the pinion 38 engages a large ring gear 40, whereas the pinion 39 engages an identical ring gear 41 mounted .therebelow.
  • the ring gear 40 drives the pinions 42 while the ring gear 41 drives the pinions 43.
  • the pinions 42 are internally threaded so that rotation of these pinions produces vertical translation of the ejection rods which have an externally threaded portion engaging therein, and in this manner rotation of the crank 30 produces rotation of the pinions 42'and thus a translation of the ejection rods 26, while rotation of the crank 31 produces rotation of the pinions 43 and thereby a translation of the ejection rods 25.
  • the chain line XX indicates the level of the stationary punch 63 so as to make the operation more readily understood.
  • a multi-platen compacting press for forming powdered material into an article having portions of different diameter, said press comprising a frame, a plurality of die platens floatingly mounted in said frame and each carrying a die, said dies being in telescoping relationship, a reciprocable punch and a fixed punch in axial alignment,
  • each of said spacing means and stop releasing means comprises two diametrically opposed spacer rods mounted on the upper platen, one pair for each intermediate and the lower platen, and two diametrically opposed stop rods for the passage of said spacer rods for the stop rods for lower ones of said intermediate platens and the lower platen.
  • each of said stop means being capable of taking the full load of the press, release means for releasing said several stop means, and means operative upon completion of the compacting stroke of said reciprocable punch to force the upper die platen downwardly; first spacing means between the upper and intermediate die platens for releasing the stop means for said intermediate die platen, second spacing means between the upper and lower die platens and passing through the intermediate platen for releasing the stop means for the said lower platen, said first and second spacing means being separately adjustable, whereby said upper die platen, through said first spacing means, may first release the stop means for said intermediate platen, and thereafter, through said second spacing means, release the stop means for said lower platen, or, alternatively, said upper die platen through said second spacing means may first release the stop means for said lower platen, and thereafter, through said first spacing means, release the stop means for said intermediate platen.
  • each of said first and second spacing means comprises two diametrically opposed spacer rods mounted on the upper platen, and a pair of diametrically opposed stop rods mounted on each of the intermediate and lower platens, the pair of stop rods on the intermediate platen being axially aligned respectively with the spacer rods of said first spacing means, the pair of stop rods on the lower platen being axially aligned respectively with the spacer rods of said second spacing means, said intermediate platen having apertures for the passage of the said spacer rods of said second spacing means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Press Drives And Press Lines (AREA)
  • Punching Or Piercing (AREA)
US505488A 1965-10-28 1965-10-28 Compacting press with selective ejection Expired - Lifetime US3337916A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US505488A US3337916A (en) 1965-10-28 1965-10-28 Compacting press with selective ejection
GB41290/66A GB1149198A (en) 1965-10-28 1966-09-15 Improvements in or relating to compacting presses
DE1577221A DE1577221C3 (de) 1965-10-28 1966-10-24 Presse zum Verpressen von pulverförmigem Material
FR81799A FR1502989A (fr) 1965-10-28 1966-10-27 Presse à compacter avec dispositif d'éjection sélective
SE14761/66A SE312410B (fr) 1965-10-28 1966-10-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US505488A US3337916A (en) 1965-10-28 1965-10-28 Compacting press with selective ejection

Publications (1)

Publication Number Publication Date
US3337916A true US3337916A (en) 1967-08-29

Family

ID=24010513

Family Applications (1)

Application Number Title Priority Date Filing Date
US505488A Expired - Lifetime US3337916A (en) 1965-10-28 1965-10-28 Compacting press with selective ejection

Country Status (5)

Country Link
US (1) US3337916A (fr)
DE (1) DE1577221C3 (fr)
FR (1) FR1502989A (fr)
GB (1) GB1149198A (fr)
SE (1) SE312410B (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460202A (en) * 1967-04-28 1969-08-12 Cincinnati Shaper Co Hydraulic releasable stop device for presses and the like
US3464089A (en) * 1967-05-19 1969-09-02 Cincinnati Shaper Co Compacting press
US3601855A (en) * 1970-06-17 1971-08-31 Sylvania Electric Prod Apparatus for forming a composite metal-ceramic article
US3647332A (en) * 1969-08-29 1972-03-07 Parker Hannifin Corp Hydraulic press
US3733154A (en) * 1971-08-17 1973-05-15 Wolverine Pentronix Deflection compensation system for press
US3741697A (en) * 1972-02-02 1973-06-26 Wolverine Pentronix Remote control system for powder compacting presses
US4153399A (en) * 1977-09-08 1979-05-08 Ptx-Pentronix, Inc. Multiple punch tool set for powder compacting press
US4260346A (en) * 1979-10-09 1981-04-07 Anderson Jr Raymond B Press assembly for powder material
US4370119A (en) * 1980-09-09 1983-01-25 Tamagawa Kikai Kabushiki Kaisha Powder press
US4443171A (en) * 1982-04-14 1984-04-17 Wesjay, Inc. Multi-motion mechanical press
US4752200A (en) * 1987-02-19 1988-06-21 Standard Tool & Die, Inc. Apparatus for a controllable press ejection system
EP0388721A2 (fr) * 1989-03-23 1990-09-26 Dorst Maschinen und Anlagenbau Otto Dorst und Dipl.-Ing Walter Schlegel GmbH & Co. Presse avec cadre d'outil insérable dans la presse
US5326242A (en) * 1990-08-10 1994-07-05 Yoshizuka Seiki Co., Ltd. Powder molding press

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142126A1 (de) * 1981-10-23 1983-05-11 Dorst-Keramikmaschinen-Bau Otto Dorst U. Dipl.-Ing. Walter Schlegel, 8113 Kochel "presse zum herstellen masshaltiger presslinge aus pulverfoermigem material"
US7931856B2 (en) * 2007-09-04 2011-04-26 Burgess-Norton Mfg. Co., Inc. Method of manufacturing crankshaft bushing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509783A (en) * 1945-10-17 1950-05-30 Hpm Dev Corp Apparatus for molding
US3154812A (en) * 1962-03-07 1964-11-03 Haller John Hydraulic briquetting press
US3168759A (en) * 1963-01-17 1965-02-09 Cincinnati Shaper Co Core punch and bottom stop therefor
US3172156A (en) * 1962-09-06 1965-03-09 Cincinnati Shaper Co Compacting press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509783A (en) * 1945-10-17 1950-05-30 Hpm Dev Corp Apparatus for molding
US3154812A (en) * 1962-03-07 1964-11-03 Haller John Hydraulic briquetting press
US3172156A (en) * 1962-09-06 1965-03-09 Cincinnati Shaper Co Compacting press
US3168759A (en) * 1963-01-17 1965-02-09 Cincinnati Shaper Co Core punch and bottom stop therefor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460202A (en) * 1967-04-28 1969-08-12 Cincinnati Shaper Co Hydraulic releasable stop device for presses and the like
US3464089A (en) * 1967-05-19 1969-09-02 Cincinnati Shaper Co Compacting press
US3647332A (en) * 1969-08-29 1972-03-07 Parker Hannifin Corp Hydraulic press
US3601855A (en) * 1970-06-17 1971-08-31 Sylvania Electric Prod Apparatus for forming a composite metal-ceramic article
US3733154A (en) * 1971-08-17 1973-05-15 Wolverine Pentronix Deflection compensation system for press
US3741697A (en) * 1972-02-02 1973-06-26 Wolverine Pentronix Remote control system for powder compacting presses
US4153399A (en) * 1977-09-08 1979-05-08 Ptx-Pentronix, Inc. Multiple punch tool set for powder compacting press
US4260346A (en) * 1979-10-09 1981-04-07 Anderson Jr Raymond B Press assembly for powder material
US4370119A (en) * 1980-09-09 1983-01-25 Tamagawa Kikai Kabushiki Kaisha Powder press
US4443171A (en) * 1982-04-14 1984-04-17 Wesjay, Inc. Multi-motion mechanical press
US4752200A (en) * 1987-02-19 1988-06-21 Standard Tool & Die, Inc. Apparatus for a controllable press ejection system
EP0388721A2 (fr) * 1989-03-23 1990-09-26 Dorst Maschinen und Anlagenbau Otto Dorst und Dipl.-Ing Walter Schlegel GmbH & Co. Presse avec cadre d'outil insérable dans la presse
EP0388721A3 (fr) * 1989-03-23 1991-05-22 Dorst Maschinen und Anlagenbau Otto Dorst und Dipl.-Ing Walter Schlegel GmbH & Co. Presse avec cadre d'outil insérable dans la presse
US5326242A (en) * 1990-08-10 1994-07-05 Yoshizuka Seiki Co., Ltd. Powder molding press

Also Published As

Publication number Publication date
SE312410B (fr) 1969-07-14
GB1149198A (en) 1969-04-16
DE1577221B2 (de) 1973-11-29
FR1502989A (fr) 1967-11-24
DE1577221C3 (de) 1974-06-12
DE1577221A1 (de) 1970-04-09

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