US3858432A - Press structure - Google Patents

Press structure Download PDF

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Publication number
US3858432A
US3858432A US286272A US28627272A US3858432A US 3858432 A US3858432 A US 3858432A US 286272 A US286272 A US 286272A US 28627272 A US28627272 A US 28627272A US 3858432 A US3858432 A US 3858432A
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US
United States
Prior art keywords
press
crown
frame
crankshaft
bed
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
US286272A
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English (en)
Inventor
John Edwin Voorhees
Donald Joseph Hemmelgarn
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.)
Nidec Minster Corp
Original Assignee
Minster Machine 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 Minster Machine Co filed Critical Minster Machine Co
Priority to US286272A priority Critical patent/US3858432A/en
Priority to GB3785573A priority patent/GB1416774A/en
Priority to CA179,051A priority patent/CA995057A/en
Priority to IT52207/73A priority patent/IT994170B/it
Priority to DE19732343411 priority patent/DE2343411A1/de
Priority to BR6760/73A priority patent/BR7306760D0/pt
Priority to FR7331903A priority patent/FR2213161B1/fr
Priority to SU7301957661A priority patent/SU564788A3/ru
Priority to JP9936273A priority patent/JPS5437347B2/ja
Application granted granted Critical
Publication of US3858432A publication Critical patent/US3858432A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • F16C32/0644—Details of devices to control the supply of liquids to the bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0685—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for radial load only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof

Definitions

  • ABSTRACT A mechanical press having a frame made up of a crown, front and back frame members beneath the crown, leg members beneath the frame members, and bridge members extending between the frame members at the bottom.
  • a bed is moveably mounted in the space within the press frame at the bottom for adjustment toward and away from the crown.
  • the crown carries counterrotating crankshafts connected by connecting rods with pistons slidably guided in cylinders in the head with a slide connected to the lower ends of the cylinders and being supported and guided solely thereby.
  • An automaticfeeding device is provided for feeding stock into the press and a belt drive is provided for driving the feeding device'by a crankshaft of the press.
  • Hydrostatic bearings are advantageously provided for the crankshaft bearing and for the pin portions of the crankshafts and between the cylinders and pistons that slide therein.
  • the counterrotating crankshafts are provided with counter balancing means whereby the press is adaptedto operate at high speeds.
  • the present invention relates to mechanical presses and is particularly concerned with a mechanical press which operates at extremely high speed.
  • Mechanical presses are, of course, well known and consist of a frame with a crankshaft which is driven by a motor and to which crankshaft is connected a slide that reciprocates in the press to and from a bed member with parts of a die set being mounted on the slide and bed member for operating workpieces inserted therebetween as the slide reciprocates.
  • the slide in a mechanical press is connected to the crankshaft by a connecting rod which is adjustable in length or which is connected to another member that is adjustable in its relation to the slide so that the daylight opening between the slide and the bed can be adjusted to accommodate the press for various die sets.
  • the slide is usually guided on the upright portions of the press frame extending between the head and bed so that the parts of the die set remain in accurate registration as the slide reciprocates.
  • the pressaccording to the present invention is particularly characterized in being capable of extremely high speed operation, up to 1,600 strokes per minute or more of the press slide in a press rated at 60 tons or more.
  • the press according to the present invention is, thus, particularly useful for blanking operations, such as for electric motor laminations and the like and, in contrast to high speed presses that are presently available, has a relatively long stroke and operates relatively large workpieces by virtue of the unique design of its bearings, reciprocating members, and stock feeding apparatus.
  • a particular object of the present invention is the provision of a mechanical press so constructed and arranged as to permit operation thereof within the range of speeds above referred to, namely, up to 1,600 strokes a minute or'more.
  • Another object of the present invention is the provision of a slide construction and arrangement which permits high speed operation of the slide.
  • Still another object is the provision of a mechanical press especially constructed for high speed operation in which all of the relatively moving parts of the press are adequately lubricated at all times and wherein the undesirable heat developed from the high speed operation of the press rapidly conveyed from the bearings and dissipated.
  • Still another object of the present invention is the provision of a mechanical press in which the daylight opening of the press can be adjusted but in which the adjusting arrangement for this purpose is separated from the slide of the press so as not to add any additional weight thereto.
  • Still another object of the present invention is the provision of a novel guide arrangement for guiding the slide of a mechanical press.
  • Still another object of the present invention is the provision of a mechanical press in which dual counterrotating crankshafts are employed for actuating the press slide with a dynamic balancing arrangement provided for inhibiting vibration of the press at high speed.
  • FIG. 1 is an exploded perspective view of the press frame.
  • FIG. 2 shows a stock supply and a straightening roll stand through which the stock is fed toward the press and also shows the extreme left end of a stock loop control device.
  • FIG. 3 is a perspective view showing a press according to the present invention and showing the right end of the stock loop control device referred to in respect of FIG. 2.
  • FIG. 4 is a view partly in section showing the head of the press and looking in at the press in the same direction as in FIG. 3.
  • FIG. 5 is a view like FIG. 4 but looking in at the head of the press from the rear of FIG. 3 and with the cover plate removed from the press head to expose the parts therein.
  • FIG. 6 is a somewhat schematic plan sectional view indicated by line 6-6 on FIG. 4 and showing passages for cooling air provided in the press head.
  • FIG. 7 is a fragmentary vertical sectional view through one of the crankshafts of the press and is indicated by line 7-7 on FIG. 4.
  • FIG. 8 is a somewhat schematic vertical sectional view indicated substantially by line 8-8 on FIG. 7.
  • FIG. 9 is a sectional view indicated by line 9-9 on FIG. 8.
  • FIG.v 10 is a fragmentary perspective view showing the manner in which hydrostatic bearing pockets are formed in the sleeve member illustrated in FIG. 9.
  • FIGS. 11A and 11B are somewhat schematic views showing the manner in which hydrostatic bearing pockets are formed in the crankshafts.
  • FIG. 12 is a section on line 12-12 of FIG. 11.
  • FIG. 13 is a section on line 13-13 of FIG. 11.
  • FIG. 14 is a sectional view indicated by line 13-13 on FIG. 11 showing a groove establishing a hydrostatic thrust bearing for the crankshaft.
  • FIG. 15 shows a typical flow restrictor which is disposed at the entrance of each hydrostatic bearing pocket to control the oil flow thereto.
  • FIG. 16 is a perspective view illustrating the manner in which the bed member that receives the stationary portion of the die set is adjustably mounted in the press.
  • FIG. 17 is a sectional view indicated by line 17-17 on FIG. 16 showing a fluid actuator connected with the. adjustable bed member to assist in the elevation thereof and to clamp the bed member in adjusted positions.
  • FIG. 18 is a sectional View indicated by line 18-18 on FIG. 16 showing one of the adjusting devices for adjusting the bed member in the press frame.
  • FIG. 19 is a fragmentary plan sectional view looking down on top of the bed member and showing the manner in which it is clamped in the press frame in adjusted positions.
  • FIG. 20 is a fragmentary perspective view showing the fluid actuators which clamp the adjustable bed member in the press frame. I I
  • FIG. 21 is a schematic view showing the straightening roll stand and the drive thereto and the loop control device to which the straightening roll stand feeds the stock being operated.
  • FIG. 22 schematically illustrates the control pulses developed for controlling the speed of operation of the straightening roll stand.
  • FIG. 23 schematically illustrates the hydraulic circuit of a stock feed arrangement interposed between the loop control device and the die set in the press for feeding stock into the die set.
  • FIG. 24 is a vertical sectional view through the feed device.
  • FIG. 25 is a plan section indicated by section line 25-25 on FIG. 24 showing an intermittent feed arrangement for intermittently driving the feed rolls of the feed device.
  • FIG. 26 is a section indicated by line 26-26 on FIG. 25 showing more in detail the intermittent feed and an arrangement for eliminating lost motion therein.
  • FIG. 27 is a schematic representation of the hydraulic control circuit employed with the press.
  • ' tion has a press frame consisting of a bed portion and a sealed crown portion and uprights extending therebetween with prestressing strain rods interconnecting the crown portion and bed portion.
  • each connecting rod at the other end is connected with one end of a piston member with the other end of each piston member being connected to the press slide that is disposed beneath the crown portion of the press frame.
  • the press crown includes cylinders which are open at both ends and in which the aforementioned pistons are slidably guided. Balancing weights mounted on the crankshaft substantially counterbalance the slide and pistons and connecting rods so that the press will operate at high speed without any substantial amount of vibration.
  • crankshafts are geared together at one end and the other end of the crankshafts is connected to a flywheel through a pneumatically operated clutch.
  • the flywheel is belt-driven from a drive motor that may be variable in speed or which may have a variable speed output shaft which is drivingly connected with the motor by way of an eddy-current clutch.
  • the other crankshaft has a brake disc mounted thereon adjacent the aforementioned clutch and flywheel for braking the crankshaft to a halt when necessary.
  • a brake disc mounted thereon adjacent the aforementioned clutch and flywheel for braking the crankshaft to a halt when necessary.
  • the flywheel also has a brake associated therewith which is not, however, employed during normal press operations, but is merely used during set up and to bring the flywheel quickly to a halt when necessary.
  • the bed portion of the press has a vertically adjustable bed member therein so that the daylight opening of the press can be adjusted without providing adjustable members associated with the connecting rods and which would add to the reciprocating mass.
  • the adjustable bed member is adapted for being elevated and lowered by screw jacks disposed therebeneath and is clamped fixedly in position by fluid actuators engaging the bed member from above and which fluid actuators are also employed to carry the weight of the bed member during vertical adjustment thereof.
  • the press is arranged to operate at extremely high speed, up to 1,600 strokes per minute or more, and an arrangement for feeding strip stock to the press is provided which will feed efficiently at the operating speeds referred to.
  • the stock supply is preferably in the form of a roll, or reel, of strip stock rotatably supported and a drag brake is provided to maintain tension on the stock and to prevent the stock reel from running ahead when the press is stopped.
  • the stock from the stock reel leads to a straightening roller stand which is driven at variable speed as by way of an eddy current clutch.
  • the stock, upon leaving the straightening roll stand, passes through an enclosure which guides the stock and within which the stock is thrown into somewhat of an S- shaped loop.
  • detectors are provided which detect maximum and minimum lengths of the loop therein. When a maximum length is detected, the speed of the straightening roller, stand is reduced and when a minimum loop is detected the press and the straightening roller stand are halted.
  • the straightening roller stand is arranged to feed' a slight excess amount over the feed required by the press on each stroke, so that the maximum loop detector, in normal operation, will periodically reduce the feed from the straightening roller stand.
  • the feed device Between the straightening roller stand and the press is a feed arrangement consisting of opposed rollers which bear on the stock from opposite sides and one of which is intermittently driven so as to advance stock into the die set in the press while the die set is open.
  • the feed device includes an arrangement for eliminating lost motion in the drive to the feed rolls so that the feed into the die set in the press is quite rapid and without hesitation and is substantially positive.
  • the feed device comprises an arrangement for separating the rolls under emergency conditions and also when the rotation of the driven one of the rollers is interrupted.
  • crankshaft and the connecting rods and the pistons connected to the slide are provided with hydrostatic bearing arrangements to which lubricating fluid is continuously supplied at controlled pressure.
  • the press frame has a crown portion 50 and a lower frame portion 48 and uprights 52 therebetween.
  • the lower frameportion 48 of thepress frame and the uprights 52 may be combined in the form of integral frame members 53 in front and 55 in back, each having a window 600 therein.
  • Frame member 53 engages the underneath side of the crown 50 at thr front of the press and frame member 55 engages the underneath side of the crown 50 at the back of the press.
  • Leg members 54 and 56 extend in the fore and aft direction of the press beneath the lower ends of the above mentioned frame members 53 and 55 and at the opposite sides of the frame members are the bed clamp beam members 602 extending in the fore and aft direction of the press.
  • the crown and frame members and leg members are fixedly interconnected by prestressed strain rods 47 extending vertically therethrough and disposed near the corners of the crown portion 50 of the press frame. Nuts 59 are threaded on the ends of rods 57.
  • the bed clamp beam members 602 are bolted to the frame members 53 and 55 and the frame members together with the above mentioned bed clamp beam members define the space in which the bedmember of the press, indicated at 46, is disposed for vertical adjustability.
  • numeral 30 generally'designates a stock supply which may take the form of a reel of strip stock 32 mounted on a rotary support with the support preferably including a drag brake to stabilize rotation of the reel. From the stock supply, stock 32 is delivered to a straightening roller stand generally designated at 34 and which is substantially conventional except for the drive thereto which will be discussed more fully hereinafter.
  • the stock passes through spaced sets of feed rollers which advance the stock in the direction of its length and interposed between the feed rollers are a plurality of straightening rollers in opposed rows and staggered relation so that the stock is straightened as it passes through the straightening roller stand.
  • the stock enters a stock loop control device generally indicated at 36 and also to be discussed more fully hereinafter.
  • the strip of stock is thrown into a generally S-shaped curve and within the stock control device are instrumentalities for detecting a predetermined maximum length of the loop and a predetermined minimum length. thereof.
  • the straightening roller stand is arranged to feed stock at a slightly higher speed than it is consumed in the press so that, under normal circumstances, the stock loop gradually lengthens 'until a detector in the device detects a maximum loop length whereupon the speed of feeding stock through the straightening roller stand is reduced to reduce the length of the loop and normal feeding operations then continue.
  • a minimum stock loop is detected, a situation that should not occur in normal operation, the operation of the press and the straightening roller stand is stopped.
  • FIG. 3 will show that the loop detecting device is connected to supply the stock to a feed device, generally indicated at 38 and which feeds the stock into the press.
  • Device 38 feeds the stock intermittently, interrupting the feed during the working stroke of the press when the die set therein closes and feeding stock when the die set is open.
  • the strip of stock being fed into the press is confined from above, as by a plate 40, and under emergency conditions when the stock jams or the feeding thereof into the die set is otherwise interrupted, the stock will buckle downwardly and actuate 6 a switch which will interrupt the feeding of the stock and stop the press.
  • the press frame includes crown portion 50, front and rear press frame members 53 and 55 with lower portion 48 integral with vertical portions 52 extending between the crown portion and the legs 54 and 56.
  • the press frame is supported on a leg 54 having two feet at one side of the press and leg 56 having one foot at the other side so that the press can be more easily mounted on a nonuniform surface.
  • crankshaft means rotatably mounted in the crown portion.
  • the crankshaft means receives power from a drive motor 60 which is either variable in speed or which drives the crankshaft means through an eddy current clutch so that the speed of the crankshaft means can be.
  • the press according to the present invention is adapted to operate at extremely high speeds, up to 1,600 strokes per minute or more, and considerable heat may be developed in at least the crown portion of press frame and out the stack 66. As will be seen hereinafter, the air is blown through a heat exchange interposed between blower 62 and the air passages in the crown-portion of the press.
  • the skeleton of the stock fed out. of the die set passes through a scrap cutter 68 arranged at the side of the press opposite the feed device 38 so that the skeleton of stock is clipped into small pieces as it emerges from the press so that it is in ideal form for disposal as scrap.
  • the entire operation of the press may be controlled from a console 70 suitably positioned adjacent the press and connected by cable means with a relay panel 72.
  • crankshaft means mounted in the press crown comprise a pair of counterrotating crankshafts (FIG. 4) which extend in the fore and aft direction of the press crown, namely, in a direction at right angles to the direction ofstock fed through the press, which is considered from side to side.
  • FIG. 4 shows at somewhat enlarged scale the crown of the press looking in the same direction as in FIG. 3 but with portions of the crown cut away to show the interior thereof.
  • the crankshafts of the press are seen from one end and are indicated at 74 and 76.
  • the crankshafts, on the ends visible in FIG. 4, carry gears 78 and 80, respectively, which mesh and which cause counterrotation of .the crankshafts in synchronism.
  • Gears 78 and 80 are disposed in a recessed compartment 82 in the crown portion 50 ofthe press and which is normally closed by a cover plate 84.
  • the gears have holes 79 and 81 therein for counterbalancing purposes to be explained more fully hereinafter.
  • FIG. 4 also shows blower 62 and drive motor 64 therefor and, in FIG. 4, it will be seen that the blower 62 has an inlet 86 and an outlet discharging througha

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)
US286272A 1972-09-05 1972-09-05 Press structure Expired - Lifetime US3858432A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US286272A US3858432A (en) 1972-09-05 1972-09-05 Press structure
GB3785573A GB1416774A (en) 1972-09-05 1973-08-09 Mechanical press apparatus
CA179,051A CA995057A (en) 1972-09-05 1973-08-17 Press structure
IT52207/73A IT994170B (it) 1972-09-05 1973-08-28 Struttura di pressa
DE19732343411 DE2343411A1 (de) 1972-09-05 1973-08-29 Pressenaufbau
BR6760/73A BR7306760D0 (pt) 1972-09-05 1973-08-31 Um prensa mecanica
FR7331903A FR2213161B1 (pt) 1972-09-05 1973-09-04
SU7301957661A SU564788A3 (ru) 1972-09-05 1973-09-04 Механический пресс
JP9936273A JPS5437347B2 (pt) 1972-09-05 1973-09-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US286272A US3858432A (en) 1972-09-05 1972-09-05 Press structure

Publications (1)

Publication Number Publication Date
US3858432A true US3858432A (en) 1975-01-07

Family

ID=23097840

Family Applications (1)

Application Number Title Priority Date Filing Date
US286272A Expired - Lifetime US3858432A (en) 1972-09-05 1972-09-05 Press structure

Country Status (9)

Country Link
US (1) US3858432A (pt)
JP (1) JPS5437347B2 (pt)
BR (1) BR7306760D0 (pt)
CA (1) CA995057A (pt)
DE (1) DE2343411A1 (pt)
FR (1) FR2213161B1 (pt)
GB (1) GB1416774A (pt)
IT (1) IT994170B (pt)
SU (1) SU564788A3 (pt)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941970A (en) * 1974-05-13 1976-03-02 Precision Tool & Machine Co. Feed roll and method of imparting a rough texture to the surface thereof
DE2610692A1 (de) * 1976-03-13 1977-09-15 Schuler Gmbh L Antriebseinrichtung fuer eine mechanisch angetriebene presse
US4048841A (en) * 1974-05-01 1977-09-20 Matrix Engineering Limited Forming apparatus
US4065954A (en) * 1974-11-20 1978-01-03 Erich Grau Stanzwerk Fur Elektrobleche Ram-guiding frame
US4206701A (en) * 1979-03-08 1980-06-10 The Minster Machine Company Lock mechanism for press shutheight adjustment
US4375785A (en) * 1981-09-08 1983-03-08 The Minster Machine Company Method and apparatus for achieving thermal stability in a press
US4376410A (en) * 1981-09-08 1983-03-15 The Minster Machine Company Press guide structure
EP0074716A2 (en) * 1981-09-08 1983-03-23 The Minster Machine Company Mechanical press and method of assembly
US4475278A (en) * 1981-09-08 1984-10-09 The Minster Machine Company Method of assembling a mechanical press having a drop in drive assembly
US4723882A (en) * 1986-11-25 1988-02-09 The Minster Machine Company Apparatus for forming easy-open can ends
US4799846A (en) * 1986-11-25 1989-01-24 The Minster Machine Co. Transfer belt for can end conversion press
US5285722A (en) * 1992-11-16 1994-02-15 The Minster Machine Company Press shutheight adjustment using hydraulic tie rod assemblies
US5345861A (en) * 1993-04-20 1994-09-13 The Minater Machine Company Press adjustment screw mechanism
US5349902A (en) * 1993-04-20 1994-09-27 The Minster Machine Company Press shutheight adjustment mechanism
DE4412367A1 (de) * 1993-04-20 1994-12-01 Minster Machine Co Schließhöhen-Justiervorrichtung für eine Presse
DE19521267A1 (de) * 1994-09-13 1996-03-14 Minster Machine Co Ölnebelentferner für das Ölkontrollsystem einer Presse
US5609099A (en) * 1995-10-06 1997-03-11 The Minster Machine Company Press shutheight adjustment mechanism with hydrostatic bearing pads
US5636432A (en) * 1993-10-20 1997-06-10 General Electric Company Tandem press system for manufacture of stator and rotor cores
DE19706656A1 (de) * 1996-03-27 1997-11-06 Minster Machine Co Pressen, Schließhöhensteuerung mittels hydraulischen Druckes
US5865070A (en) * 1996-10-28 1999-02-02 The Minster Machine Company Adjustable stroke connection
US6055904A (en) * 1998-12-28 2000-05-02 Brown Machine, Llc Shut height adjustment and crank support arrangements and methods for a thermoforming press
US6067886A (en) * 1996-08-02 2000-05-30 The Vision Limited Partnership Machine trim press having counterbalance features
US6076456A (en) * 1998-09-10 2000-06-20 The Minster Machine Company Flywheel quill with thrust plates and axial rotor guiding
US6186061B1 (en) * 1999-05-11 2001-02-13 The Minster Machine Company Press bearing lubrication system
US6250216B1 (en) 1999-03-19 2001-06-26 The Minster Machine Company Press deflection controller and method of controlling press deflection
US6267050B1 (en) 1998-11-25 2001-07-31 The Minster Machine Company Quick access/adjustment piston
US6474227B2 (en) * 2000-04-24 2002-11-05 Aida Engineering, Ltd. Method of controlling synchronous drive of pressing machine and pressing machine usable in the method
US6871587B2 (en) * 2001-10-24 2005-03-29 Aida Engineering Co., Ltd. Machine press
EP1990182A1 (de) 2007-05-05 2008-11-12 Metso Lindemann GmbH Maschine zur Reststoffbearbeitung
US20130180347A1 (en) * 2012-01-13 2013-07-18 Jere F. Irwin Thermoforming Trim Press, Drive Gear Assembly and Method
US9061435B1 (en) * 2009-09-10 2015-06-23 Colter & Peterson, Inc. Automated knife change adjustment on dual-gearbox paper cutting machines

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633322C2 (de) * 1976-07-24 1985-07-18 L. Schuler GmbH, 7320 Göppingen Sicherheitssteuerung
JPS5893068U (ja) * 1981-12-16 1983-06-23 富士通株式会社 フアクシミリ装置
EP0223885A3 (en) * 1985-11-04 1988-06-01 Aida Engineering Ltd. Balancing device for press and press including a balancing device
EP0273604B1 (en) * 1986-12-04 1991-04-17 Kabushiki Kaisha Kosmek Die-height adjusting device of mechanical press

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FR2343592A1 (fr) * 1976-03-13 1977-10-07 Schuler Gmbh L Dispositif d'entrainement d'une presse mecanique
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EP0074717A3 (en) * 1981-09-08 1983-08-17 The Minster Machine Company Mechanical press
US4475278A (en) * 1981-09-08 1984-10-09 The Minster Machine Company Method of assembling a mechanical press having a drop in drive assembly
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US5285722A (en) * 1992-11-16 1994-02-15 The Minster Machine Company Press shutheight adjustment using hydraulic tie rod assemblies
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DE4412382C2 (de) * 1993-04-20 1998-01-29 Minster Machine Co Schließhöhen-Justiereinrichtung für eine Presse
DE4412382A1 (de) * 1993-04-20 1994-10-27 Minster Machine Co Schließhöhen-Justiervorrichtung für eine Presse
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DE4412381A1 (de) * 1993-04-20 1994-12-22 Minster Machine Co Schließhöhen-Justiervorrichtung für eine Presse
US5345861A (en) * 1993-04-20 1994-09-13 The Minater Machine Company Press adjustment screw mechanism
US5456165A (en) * 1993-04-20 1995-10-10 The Minster Machine Company Method for adjustment in motion of press shutheight
US5349902A (en) * 1993-04-20 1994-09-27 The Minster Machine Company Press shutheight adjustment mechanism
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US5636432A (en) * 1993-10-20 1997-06-10 General Electric Company Tandem press system for manufacture of stator and rotor cores
US5915750A (en) * 1993-10-20 1999-06-29 General Electric Company Method of manufacturing stator and rotor cores
DE19521267C2 (de) * 1994-09-13 1998-12-24 Minster Machine Co Ölnebelentferner für das Ölkontrollsystem einer Presse
DE19521267A1 (de) * 1994-09-13 1996-03-14 Minster Machine Co Ölnebelentferner für das Ölkontrollsystem einer Presse
US5609099A (en) * 1995-10-06 1997-03-11 The Minster Machine Company Press shutheight adjustment mechanism with hydrostatic bearing pads
DE19706656A1 (de) * 1996-03-27 1997-11-06 Minster Machine Co Pressen, Schließhöhensteuerung mittels hydraulischen Druckes
DE19706656C2 (de) * 1996-03-27 1999-01-28 Minster Machine Co Schließhöhen-Justiervorrichtung
US6067886A (en) * 1996-08-02 2000-05-30 The Vision Limited Partnership Machine trim press having counterbalance features
US5865070A (en) * 1996-10-28 1999-02-02 The Minster Machine Company Adjustable stroke connection
US6076456A (en) * 1998-09-10 2000-06-20 The Minster Machine Company Flywheel quill with thrust plates and axial rotor guiding
US6267050B1 (en) 1998-11-25 2001-07-31 The Minster Machine Company Quick access/adjustment piston
US6055904A (en) * 1998-12-28 2000-05-02 Brown Machine, Llc Shut height adjustment and crank support arrangements and methods for a thermoforming press
US6250216B1 (en) 1999-03-19 2001-06-26 The Minster Machine Company Press deflection controller and method of controlling press deflection
US6186061B1 (en) * 1999-05-11 2001-02-13 The Minster Machine Company Press bearing lubrication system
US6474227B2 (en) * 2000-04-24 2002-11-05 Aida Engineering, Ltd. Method of controlling synchronous drive of pressing machine and pressing machine usable in the method
US6871587B2 (en) * 2001-10-24 2005-03-29 Aida Engineering Co., Ltd. Machine press
EP1990182A1 (de) 2007-05-05 2008-11-12 Metso Lindemann GmbH Maschine zur Reststoffbearbeitung
AU2008201433B2 (en) * 2007-05-05 2009-10-22 Metso Lindemann Gmbh Machine for processing residual material
US9061435B1 (en) * 2009-09-10 2015-06-23 Colter & Peterson, Inc. Automated knife change adjustment on dual-gearbox paper cutting machines
US20130180347A1 (en) * 2012-01-13 2013-07-18 Jere F. Irwin Thermoforming Trim Press, Drive Gear Assembly and Method
US9182019B2 (en) * 2012-01-13 2015-11-10 Jere F. Irwin Thermoforming trim press

Also Published As

Publication number Publication date
DE2343411A1 (de) 1974-03-28
FR2213161A1 (pt) 1974-08-02
CA995057A (en) 1976-08-17
FR2213161B1 (pt) 1976-11-19
SU564788A3 (ru) 1977-07-05
BR7306760D0 (pt) 1974-06-27
GB1416774A (en) 1975-12-10
JPS5437347B2 (pt) 1979-11-14
IT994170B (it) 1975-10-20
JPS4968370A (pt) 1974-07-02

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