US3414940A - Tool capsule for powder compacting press - Google Patents

Tool capsule for powder compacting press Download PDF

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Publication number
US3414940A
US3414940A US544285A US54428566A US3414940A US 3414940 A US3414940 A US 3414940A US 544285 A US544285 A US 544285A US 54428566 A US54428566 A US 54428566A US 3414940 A US3414940 A US 3414940A
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United States
Prior art keywords
die
punches
die plate
powder
tool
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
US544285A
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English (en)
Inventor
Vinson Paul
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.)
Pentronix Inc
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Pentronix Inc
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 Pentronix Inc filed Critical Pentronix Inc
Priority to US544285A priority Critical patent/US3414940A/en
Priority to CH432767A priority patent/CH463714A/fr
Priority to FR100342A priority patent/FR1517208A/fr
Priority to GB05252/67A priority patent/GB1170992A/en
Priority to DE19671627952 priority patent/DE1627952A1/de
Priority to NL676704926A priority patent/NL154960B/xx
Priority to BE720592D priority patent/BE720592A/xx
Application granted granted Critical
Publication of US3414940A publication Critical patent/US3414940A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B30B11/04—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 co-operating with a fixed mould
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/1005—Forming solid beads
    • C03B19/1035—Forming solid beads by pressing

Definitions

  • ABSTRACT F THE DISCLOSURE A unitary tool capsule for mounting on a powder compacting press and having a die plate provided with a plurality of die cavities, a housing disposed below the die plate and holding a plurality of hollow punches each disposed in one of the die cavities.
  • the punches are collectively actuated by a c-ommon actuating member permitting free radial individual displacement of the punches, and a core rod is disposed within the longitudinal bore of each punch.
  • the core rods are fixedly but adjustably mounted on the end of a sleeve which is in turn adjustably but fixedly mounted in the housing.
  • This invention relates to powder compacting presses and more particularly to an improved tool capsule assembly for such presses having means providing an accurate adjustment ofthe die cavity dimensions to insure a more precise dimensional control over the finished compacted article.
  • the present invention is an improvement over a tool capsule of the character provided as part of the powder compacting press disclosed in co-pending application Ser. No. 450,427 filed Apr. 23, 1965, now abandoned, in continuing applications Ser. Nos. 529,733 and 529,734, filed Feb. 24, 1966, now U.S. Patents 3,328,840 and 3,344,213, respectively, in continuing application Ser. No. 529,842, filed Feb. 24, 1966, now U.S. Patent No. 3,328- 842, and in continuing application Ser. No. 618,230', filed Feb. 23. 1967.
  • the powder compacting press described and claimed in the co-pending patent application consists of a machine for the purpose of manufacturing cores, beads, pellets, and the like made of powdered ferrite, glass, or other comparable powdered substances capable of forming a product upon the application of a pressure in a confined molding cavity.
  • the primary purpose of the machine is the manufacture of computer memory cores which are normally toroidal, pills such as pharmaceuticals, balls for ball point pens, porous bearings and bushings, and the like, Computer memory cores and porous bearings, and bushings normally have a toroidal or cylindrical shape, while pharmaceuticals may take the form of tablets such as aspirin tablets, and balls for ball point pens are formed with a spherical shape.
  • ferrite memory cores have dimensions ranging from approximately .005 to .015 inch in thickness, and from approximately .O05 to .025 inch in diameter, and the tolerance of these dimensions normally must be held to within one tenth of a thousandths of an inch.
  • the density of compacted articles of this character such as memory cores must also be held accurate, thereby making it necessary that the amount of powder placed in each die cavity of the press must be substantially the same and must be repetitively maintained within extremely close limits.
  • the finished density of all the finished cores must be the same, that is, it must be uniform and accordingly, the compressing of the powdered material must be exact and repeatedly constant.
  • the articles are compacted and formed in a multi-cavity die.
  • the finished articles are automatically ejected from the die, picked up by a vacuum suction head and delivered into vials or bottles.
  • a flipper assembly which is part of the press, is mounted movably transversely over the die plate and carries a secondary powder hopper, an anvil, and a vacuum pick up head.
  • the secondary powder hopper which is supplied with powder from a primary hopper connected thereto by means of a flexible tubing, is first positioned over the die cavities, which are filled with powder to overow, the punches are displaced upwardly so as to expel from the die cavities a predetermined amount of excess powder, the hopper is removed while wiping the die plate surface clean from excess powder and replaced by the anvil which is in turn positioned on the upper surface of the ⁇ die and over the die cavities.
  • the powder in each die cavity is then compacted against the anvil by the way of the punches.
  • the anvil is removed from its position over the die cavities and replaced by the vacuum pick-up head.
  • the punches are then displaced so as to bring their upper ends substantially flush with the opening of each die cavity, so that the finished compacted articles are ejected from the -die cavities and picked up by the vacuum pick-up head.
  • the vacuum pick-up head is then moved from over the die cavities and disposed over a series of apertures arranged in a disposition similar to the arrangement of the die cavities in the die, preferably in a circle, and the finished articles dropped through the apertures into separate vials or bottles.
  • the preferred tool capsule for forming an article having a toroidal shape comprised a die plate having a plurality of equiangularly spaced bores arranged in a circle, a punch associated With each of the bores and adapted to be displaced in the bore to form a cavity for the powder between the head of the punch and the surface of the die plate, and a core rod associated with each of the punches and axially slidable in a longitudinal bore in the punch.
  • the core rod would be displaced upwardly in the cavity so that its head would be flush with the surface of the die plate and then the powder disposed around the core rod would then be compressed by the punch moving toward the anvil disposed over the cavity.
  • the movements of both the core rods and the punch would have to be precisely controlled during each cycle.
  • the present invention represents an improvement over the aforementioned apparatus in that each of the core rods are adjusted to be ush with the upper surface of the die plate and then it is held stationary in this position during the operation of the machine, ⁇ while the punches are displaced axially in the cavities in a regular cycle to form compacted toroidal shaped articles.
  • the instantaneous position of only a single movable member in the die cavity need be controlled thus insuring a more accurate dimensional control.
  • a major problem associated with high production automatic powder compacting presses of this character is the maintainance of a high degree of surface finish of the various members exposed to the powder and associated with the dimensional tolerance of the finished articles.
  • the die plate and the punches are normally formed of a hardened tool steel or tungsten carbide and the surface of the die plate and the anvil normally provided with a super finish.
  • some powdered substances for instance powdered ferrite, used in the formation of computer memory cores have highly abrasive properties.
  • the upper surface of the die plate tends to become rounded with wear as the flipper assembly which traverses the die plate sweeps the excess powdered ferrite from the surface of the die plate prior to moving the anvil into engagement over the filled cavities. This sweeping action tends to wears the die plate so that acceptable dimensional tolerances are soon lost.
  • the upper ends of the punches become worn due to their repeated compaction of the powdered ferrite.
  • the conventional tool capsule has to be disassembled and the Working surface of the die plate refinished, and the core rods refinished or replaced depending upon the amount of Wear which has developed, and then the various components reassembled for further utilization.
  • the tool capsule illustrating the preferred embodiment of the present invention reduces the time and effort involved in renovating the working surfaces of the die plate and the core rods by providing a structure in which the die plate, core rods, punches, punch holder, and the related parts are removed as one complete assembly from the press, and all the parts relinished by turning the assembly face down on a conventional lapping disk.
  • the configuration of the several components is such that each of the working surfaces abut the lapping disk and are simultaneously finished or lapped.
  • an object of the present invention to provide a tooling capsule for a powder compacting press constructed to insure more reliable and repetitive control of dimensional tolerance by reducing to a minimum the number of moving parts associated with the finished member or article during each cycle.
  • FIGURE 1 represents a schematic cross sectional view of a tool capsule according to the present invention and including an anvil disposed over the die cavities;
  • FIGURE 2 is a sectional view as seen from line 2 2 of FIGURE 1;
  • FIGURE 3 is an enlarged sectional View of the tooling capsule shown in the ⁇ die cavity fill position
  • FIGURE 4 is a fragmentary enlarged sectional of the tooling capsule shown in the press position
  • FIGURE 5 is a fragmentary enlarged sectional view of the tooling capsule shown in the eject position.
  • FIGURE 6 is the sectional view as seen from lines 6-6 of FIGURE 1.
  • a powder compacting press (not shown) comprises a table portion 10 having a counter bore 12 in which is seated a preferred tool housing 14.
  • the tool housing 14 is generally cylindrical in shape and defines an axial bore 16.
  • a ⁇ die plate 18 preferably having a flat upper surface is disposed on top of the housing 14 and is held to the upper surface of the table 10 and to the tool housing by suitable means (not shown) such as clamps, screws or the like.
  • suitable means such as clamps, screws or the like.
  • the axis of the tool housing bore 16 is disposed normally to the upper surface of the die plate 18.
  • the die plate 18 is provided with a plurality of mutually parallel bores 20 preferably disposed in a circular arrangement around the axis of the bore 16 and having a regular peripheral spacing.
  • a die bushing 22 preferably formed of a hard material such as a carbide and which is press tted or otherwise fastened into the bore 20.
  • the die bushing 22 is inserted in the bore 20 such that its upper end is ush with the upper surface of the die plate 18, and has a length which terminates just short of the lower surface of the die plate.
  • Each of the die bushings 22 is provided with a longitudinal bore 24 which extends normally inwardly from the upper face of the die plate 18 and is provided with a chamfered portion 26 at the lower end thereof, as best seen in FIGURE 3.
  • an elongated cylindrical sleeve member 28 is slidably disposed Within the bore 16 of the tool housing 14.
  • the cylindrical sleeve member 28 has formed on its outer surafce a flattened surface 30 which is adapted to register with a set screw 32 carried by housing 14.
  • a set screw 32 carried by housing 14.
  • a plurality of bores 36 extend longitudinally through the Wall of the cylindrical sleeve member 28 from the annular slot 34 to terminate at the lower end with a threaded passage 38 which accommodates a set screw 40.
  • the bores 36 have an identical angular and radial disposition with respect to the axis of the sleeve member 2S as the bores 20 in the die plate have with the housing bore 16, there being one bore 36 which is associated with each of the bores 20.
  • the bores 36 are identical with one deviation which can best be seen in FIGURE 2.
  • One of the bores 36 is shortened to accommodate a set screw 42 which is radially adjustable at the lower end of the member 28 for a purpose which will be subsequently noted. It is to be understood that each of the set screws is adapted to be adjusted upwardly and downwardly by an elongated tool (not shown) which may be inserted through the opening to the threaded passage 38 provided at the lower end of the member 28.
  • An elongated rod member 44 is provided for each of the bores 36 and is slidably disposed therein.
  • the rods 44 have a length sufficient such that their upper end extends slightly into the annular slot 34 and extend downwardly through the bore 36 such that the lower end of the rod 44 will normally abut the upper end of the set screw 40.
  • seven similarly shaped rod members and one short rod member to accommodate the shortened bore 36 associated with the set screw 42.
  • a plurality of regularly spaced radial slots 46 are formed inwardly from the upper end of the cylindrical member 28 with one slot 46 aligned with each of the bores 36.
  • an upwardly extending elongaated core rod 48 is associated with each of the radial slots 46 and has an enlarged lower end 50.
  • the lower end 50 has a length which is slightly less than the Width of the annular slot 34 so that the enlarged end 50 may be inserted radially into the slot with the core rod 48 registering in the radial slot 46.
  • the slots 46 are adapted so that each of the core rods 48 may be axially aligned with the die bushing bores 24.
  • the core rods 48 have a diameter to accommodate the bore of a toroidally shaped article and have a length suflicient so the upper ends thereof may be disposed flush with the upper surface of the die plate 18.
  • the cylindrical sleeve member 28 is provided with an axial bore 52 in which is slidably disposed an elongated punch holder 54.
  • the punch holder 54 has an enlarged upper end 56 which is provided with a plurality of radial slots 58 corresponding to the die bushing bores 24 as can best be seen in FIGURE 6.
  • each of the core rods 48 extends upwardly through one of the radial slots 58 in the upper end of the punch holder 54.
  • an annular groove 60 is formed in the enlarged end 56 of the punch holder and carries a plurality of cylindrical members 62 each of which have an enlarged lower end 64 which is seated in the groove 60.
  • Each of the members 62 is provided with an axially extending elongated cylindrical punch 66 which extends upwardly therefrom to register in a die bushing.
  • the outer diameter of each of the punches 66 accurately fit the inner diameter of each of the die bushings 22, and each punch has a longitudinal bore 67 having an inner diameter closely fitting the core rod 48.
  • Each punch 66 is thus slidably guided over each core rod 48 such that it isfree for up and down movement.
  • the punch holder 54 has a at portion 68 which as can best be seen in FIGURE 2 registers with the set screw 42. Thus it can be seen that the punch holder 54 can be locked with respect to the cylindrical member 28 byrmeans of the screw 42.
  • the lower end of the punch holder 54 is provided with a notched portion 69 which is adapted to engage an actuating member (not shown).
  • the various components of the preferred tool capsule are assembled with respect to one another as follows.
  • the cylindrical sleeve member 28 carrying the core rods 48 and the punches 66 is hmoved upwardly in the housing 14 until the punches are inserted into the die bushing 22 assisted by the chamfered portions 26.
  • the punches 66 are moved upwardly such that they are substantially self-aligned within the die bushings 22, each of the core rods 48 is then locked to the cylindrical sleeve member 28 by the set screws 40 which force the rods 44 upwardly to abut the enlarged end of the core rods and lock them between the upper end of the rods 44 and the upper inner face of the slot 34.
  • the cylindrical sleeve member 28 is then moved upwardly until the upper ends of the core rods 48 are flush with the upper surface of the die plate 18.
  • the sleeve member 28 is then locked to the tool housing 14 by the adjusting set screw 32.
  • the punches 66 can now freely slide up and down the core rods 48 and within the die bushing bores 24.
  • the lower set screw 42 is normally engaged to lock the punch holder 54 with the sleeve member 28 when the tool capsule is not assembled with the compacting press.
  • the lower end of the punch holder normally is engaged with an actuating member (not shown) and which is adapted to reciprocate the punch holder during the various steps of the pressing cycle so that the locking screw 42 is disengaged.
  • a typical powder compaction cycle includes a powder filling step, a compression step and an ejection step.
  • the filling step is diagramatically illustrated in FIGURE 3 and comprises a powder supply device or what is commonly referred to as a hopper '70 which is disposed over the die bushing bore and which fills the cavity defined by the bore 24 and the upper end of the punch 66.
  • the punch 66 is displaced a suitable distance from the upper surface of the die plate 18, when the cavity is filled with a powdered material the punch 66 is then displaced slightly upward to expel excess powder and to insure that the cavity space is filled with powder.
  • the hopper 70 is then removed by means (not shown) and the upper surface of the die plate wiped ⁇ clean of any excess powder which can be accomplished by the hopper being moved transversely across the upper surface of the die plate.
  • the upper surface of the die plate is preferably polished t0 'a super finish so that there is no possibility of any grains of powder remaining on this surface after the wiping step.
  • an anvil 72 supported by anvil holder 74 is transferred over the filled die cavity and the punch holder 54 actuated to force the punches 66 upwardly such as to compress the powder contained in the cavities against the anvil to form the compacted fin ished articles.
  • the anvil is then removed from over the die cavities and the punches 66 preferably displaced upwardly so that their ends are substantially liush with the upper surface of the die plate 18 so that they eject the finished articles which may be picked up by any suitable means and preferably deposited in .
  • a plurality of passages 76 one of which is shown in FIGURE 1.'Each passage 76 delivers the finished article through a conduit 78 which discharges the finished article to a vial or bottle (not shown).
  • the upper surface of the die plate 18 and the upper end of the core rods 48 tend to become rounded and worn.
  • the wearing surfaces of the preferred tool capsule can be renovated by removing the capsule from the compacting press and inverting it so that the die plate 18 abuts a conventional lapping tool. lBy disengaging the set screw 32, the core rods 48 ⁇ and the punches 66 are free to move downwardly to abut the lapping tool so that all of the worn surfaces are simultaneously ground to the desired finish.
  • the improved tool capsule can be renovated without disassembling the various parts.
  • a more precise dimensional control of the finished articles can be maintained in the improved tool capsule because of the fewer number of moving parts whose relative movements have to be controlled.
  • the construction of the tool capsule of the present invention provides for assembling the core rods and the punches in an appropriate housing in such manner that the core rods are individually precisely positioned longitudinally relatively to the sleeve holding all the core rods, while the sleeve is in turn precisely positioned longitudinally relatively to the housing.
  • the punches are actuated in unison lby means of a common actuating member, and the punches and core rods, although accurately located along a longitudinal axis, are substantialy free to lioat radially such as to permit the punches to align themselves within the die bushings.
  • a unitary tool capsule for making articles compacted of powder comprising:
  • a die plate adapted to be mounted in an appropriate aperture ina machine base
  • said die plate having a plurality of substantially circularly arranged die cavities, each of said die cavities being shaped as a right cylindrical :bore open on both ends;
  • each of said punches in said housing each having an end engaged in one end of each of said die cavities and reciprocable therewithin, each of said punches snugly fitting within each of said die cavities;
  • each of said punches is free to radially 7 8 float relatively to said punch actuating member for adjusting means for said sleeve member to longitudiself-centering relatively to each of said cavities and nally adjust the position of said sleeve member relais positively longitudinally reciprocated by said punch tively to said housing.
  • actuating member with substantially no back lash; 2.
  • the unitary tool capsule of claim 1 ifurther comprisa longitudinal bore extending from end to end in each 5 ing means fOT IOCking Said Punch actuating member relaof said punches; tively to said sleeve member.
  • a plurality of core rod members each slidably and snugly disposed within said longitudinal bore and References Cled having .arfi eni projcting through the enlarged end UNITED STATES PATENTS portiono sai punc an enlarged portion on said projecting end of each of 10 gogt 'al gg said core rod members for connection to an end of 2338491 H1944 Cutler 18 l16 5 a Sleeve member slidably disposed in said housing 2640125 6/1953 Hauer "18 16 5 and having a plurality of radial slots afording pas- 286744 1/1959 Hau B 'M 5 Sage t0 the body 0f each of said core rod member 15 3060506 10/1962 UschH-l
  • each of said core rod mem- 2272116 1/1966 Fessel "18 36 bers is free to radially oat relatively to said rod 20 member holding member for self-centering relative- 1 HOWARD FLINT JR. Primary Examine'.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Press Drives And Press Lines (AREA)
US544285A 1966-04-21 1966-04-21 Tool capsule for powder compacting press Expired - Lifetime US3414940A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US544285A US3414940A (en) 1966-04-21 1966-04-21 Tool capsule for powder compacting press
CH432767A CH463714A (fr) 1966-04-21 1967-03-22 Outil de moulage par compression de poudre
FR100342A FR1517208A (fr) 1966-04-21 1967-03-24 Capsule-outil pour presse de tassement des poudres
GB05252/67A GB1170992A (en) 1966-04-21 1967-04-04 A Powder Compacting Press Unitary Tool Capsule Assembly.
DE19671627952 DE1627952A1 (de) 1966-04-21 1967-04-06 Vorrichtung zum Verpressen pulverfoermiger Substanzen
NL676704926A NL154960B (nl) 1966-04-21 1967-04-07 Werktuigonderdeel voor het vervaardigen van voorwerpen door het samenpersen van poeder.
BE720592D BE720592A (fr) 1966-04-21 1968-09-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US544285A US3414940A (en) 1966-04-21 1966-04-21 Tool capsule for powder compacting press

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US3414940A true US3414940A (en) 1968-12-10

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US544285A Expired - Lifetime US3414940A (en) 1966-04-21 1966-04-21 Tool capsule for powder compacting press

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US (1) US3414940A (fr)
BE (1) BE720592A (fr)
CH (1) CH463714A (fr)
DE (1) DE1627952A1 (fr)
GB (1) GB1170992A (fr)
NL (1) NL154960B (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574892A (en) * 1969-01-27 1971-04-13 Wolverine Pentronix Powder compacting press
US3640654A (en) * 1970-06-25 1972-02-08 Wolverine Pentronix Die and punch assembly for compacting powder and method of assembly
US3659985A (en) * 1968-12-13 1972-05-02 Birmingham Small Arms Co Ltd Presses
US3682577A (en) * 1968-12-20 1972-08-08 Pentronix Inc Composite punch for powder compacting press and the like
US3687588A (en) * 1970-09-08 1972-08-29 Wolverine Pentronix Lubricated die and punch assembly for compacting powder material
US3805370A (en) * 1972-08-23 1974-04-23 Wolverine Pentronix Tool set for a powder compacting press
US4104014A (en) * 1977-07-13 1978-08-01 Key Industries Punch for compressing machine
US4147489A (en) * 1977-06-22 1979-04-03 British Nuclear Fuels Ltd. Powder compacting presses
US4298563A (en) * 1978-10-19 1981-11-03 Ptx-Pentronix, Inc. Apparatus and method for compacting prismatic or pyramidal articles from powder material
US4390335A (en) * 1982-02-23 1983-06-28 Ptx-Pentronix, Inc. Die, punch and core rod assembly for compacting powder material
US4443171A (en) * 1982-04-14 1984-04-17 Wesjay, Inc. Multi-motion mechanical press
US4456445A (en) * 1982-02-23 1984-06-26 Ptx-Pentronix, Inc. Mounting structure for die, punch and core rod assembly for compacting powder material
US6868778B2 (en) * 2001-09-14 2005-03-22 Iap Research, Inc. System and method for loading a plurality of powder materials in an electromagnetic compaction press
WO2020123831A1 (fr) * 2018-12-12 2020-06-18 Right Value Drug Stores, Llc Systèmes et procédés de pressage et de mise en flacon automatisés de comprimés

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1127994A (en) * 1913-06-28 1915-02-09 Robert J Hill Combined carding and twisting machine.
US1541357A (en) * 1922-09-20 1925-06-09 Connecticut Telephone & Elec Apparatus for molding
US2338491A (en) * 1941-01-02 1944-01-04 Baldwin Locomotive Works Powdered material press and control
US2640325A (en) * 1950-08-12 1953-06-02 Haller John Hydraulic molding press
US2867844A (en) * 1954-01-18 1959-01-13 Baldwin Lima Hamilton Corp Press for molding powdered material
US3060506A (en) * 1957-06-24 1962-10-30 Uschmann Curt Molding press
US3132379A (en) * 1961-04-12 1964-05-12 Bliss E W Co Compacting press
US3227416A (en) * 1960-02-01 1966-01-04 Fessel Paul Cutting tool
US3328840A (en) * 1965-04-23 1967-07-04 Pentronix Inc Powder compacting press

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1127994A (en) * 1913-06-28 1915-02-09 Robert J Hill Combined carding and twisting machine.
US1541357A (en) * 1922-09-20 1925-06-09 Connecticut Telephone & Elec Apparatus for molding
US2338491A (en) * 1941-01-02 1944-01-04 Baldwin Locomotive Works Powdered material press and control
US2640325A (en) * 1950-08-12 1953-06-02 Haller John Hydraulic molding press
US2867844A (en) * 1954-01-18 1959-01-13 Baldwin Lima Hamilton Corp Press for molding powdered material
US3060506A (en) * 1957-06-24 1962-10-30 Uschmann Curt Molding press
US3227416A (en) * 1960-02-01 1966-01-04 Fessel Paul Cutting tool
US3132379A (en) * 1961-04-12 1964-05-12 Bliss E W Co Compacting press
US3328840A (en) * 1965-04-23 1967-07-04 Pentronix Inc Powder compacting press
US3328842A (en) * 1965-04-23 1967-07-04 Pentronix Inc Powder compacting press

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659985A (en) * 1968-12-13 1972-05-02 Birmingham Small Arms Co Ltd Presses
US3682577A (en) * 1968-12-20 1972-08-08 Pentronix Inc Composite punch for powder compacting press and the like
US3574892A (en) * 1969-01-27 1971-04-13 Wolverine Pentronix Powder compacting press
US3640654A (en) * 1970-06-25 1972-02-08 Wolverine Pentronix Die and punch assembly for compacting powder and method of assembly
US3687588A (en) * 1970-09-08 1972-08-29 Wolverine Pentronix Lubricated die and punch assembly for compacting powder material
US3805370A (en) * 1972-08-23 1974-04-23 Wolverine Pentronix Tool set for a powder compacting press
US4147489A (en) * 1977-06-22 1979-04-03 British Nuclear Fuels Ltd. Powder compacting presses
US4104014A (en) * 1977-07-13 1978-08-01 Key Industries Punch for compressing machine
US4298563A (en) * 1978-10-19 1981-11-03 Ptx-Pentronix, Inc. Apparatus and method for compacting prismatic or pyramidal articles from powder material
US4390335A (en) * 1982-02-23 1983-06-28 Ptx-Pentronix, Inc. Die, punch and core rod assembly for compacting powder material
US4456445A (en) * 1982-02-23 1984-06-26 Ptx-Pentronix, Inc. Mounting structure for die, punch and core rod assembly for compacting powder material
US4443171A (en) * 1982-04-14 1984-04-17 Wesjay, Inc. Multi-motion mechanical press
US6868778B2 (en) * 2001-09-14 2005-03-22 Iap Research, Inc. System and method for loading a plurality of powder materials in an electromagnetic compaction press
US20050201885A1 (en) * 2001-09-14 2005-09-15 Iap Research, Inc. System and method for loading a plurality of powder materials in a compaction press
US7455509B2 (en) 2001-09-14 2008-11-25 Iap Research, Inc. System and method for loading a plurality of powder materials in a compaction press
WO2020123831A1 (fr) * 2018-12-12 2020-06-18 Right Value Drug Stores, Llc Systèmes et procédés de pressage et de mise en flacon automatisés de comprimés

Also Published As

Publication number Publication date
NL154960B (nl) 1977-11-15
NL6704926A (fr) 1967-10-23
DE1627952A1 (de) 1971-10-28
CH463714A (fr) 1968-10-15
BE720592A (fr) 1969-02-17
GB1170992A (en) 1969-11-19

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