US3380272A - Apparatus for forming foil containers - Google Patents

Apparatus for forming foil containers Download PDF

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Publication number
US3380272A
US3380272A US516330A US51633065A US3380272A US 3380272 A US3380272 A US 3380272A US 516330 A US516330 A US 516330A US 51633065 A US51633065 A US 51633065A US 3380272 A US3380272 A US 3380272A
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United States
Prior art keywords
ram
container
platen
forming
ring
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
US516330A
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English (en)
Inventor
Stanley J Halter
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.)
Kaiser Aluminum and Chemical Corp
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Kaiser Aluminum and Chemical Corp
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Filing date
Publication date
Application filed by Kaiser Aluminum and Chemical Corp filed Critical Kaiser Aluminum and Chemical Corp
Priority to US516330A priority Critical patent/US3380272A/en
Priority to GB56069/66A priority patent/GB1162150A/en
Priority to LU52696D priority patent/LU52696A1/xx
Priority to FR88622A priority patent/FR1511177A/fr
Priority to LU52686A priority patent/LU52686A1/xx
Priority to CH1856366A priority patent/CH454783A/de
Priority to BE691771D priority patent/BE691771A/xx
Application granted granted Critical
Publication of US3380272A publication Critical patent/US3380272A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/025—Means for controlling the clamping or opening of the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/029—Closing or sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves
    • B21D26/08—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves generated by explosives, e.g. chemical explosives

Definitions

  • This invention relates to an apparatus for forming a blank of relatively thin foil or foil-like material such as aluminum or aluminum alloy foil into a one-piece container having smooth wall surfaces and edges throughout.
  • this invention relates to an improved apparatus for forming a thin foil blank and the like into a container having smooth walls and edges wherein novel means are provided for smoothing and then positively clamping and sealing the marginal edge portions of blanks to elements of the apparatus in such a fashion as to facilitate the explosive drawing and elongating without wrinkling of the remaining or inner portions of the blank into the desired configuration.
  • the apparatus includes novel means for smoothing and then positively clamping and sealing the marginal edge portions of the blank to certain elements of the apparatus to facilitate the explosive drawing and elongating without wrinkling of the remaining or inner portions of the blank into the desired configuration.
  • FIG. 1 is an overall sectional view of a preferred embodiment of the apparatus of the instant invention with the die parts of the apparatus being shown in an opened position and with a suitable control means for the apparatus being diagrammatically shown;
  • FIGS. 2 and 3 are sectional views on either side of the center line of the apparatus and illustrate the different operative positions of the apparatus in forming a blank into a container;
  • FIG. 4 is another partial sectional view of the apparatus and illustrates a further operative position of the apparatus with a completely formed container located therein;
  • FIG. 5 is a perspective view of a finished container that can be produced by the instant apparatus
  • FIG. 5A is a fragmentary section taken generally along line SA-SA of FIG. 5;
  • FIG. 5B is a perspective view of a modified container that can be formed by the apparatus of the instant invention.
  • FIGS. 6 and 7 are partial sectional views of a modified form of the apparatus of the instant invention illustrating different operative positions thereof.
  • a preferred form of apparatus that can be used in carrying out the teachings of the instant invention generally comprises a die device 10.
  • the device 10 includes a reciprocating ram generally indicated at 12 provided with a female die 14 at the forward end thereof.
  • the lower portion of the die device 10 as shown in the drawings includes a platen or base generally indicated at 16. This platen cooperates with the ram 12 during the advancement thereof to form the inserted thin metallic foil blank or the like into a container of desired configuration such as a container illustrated in FIGS. 5 and 5A.
  • a modified form of the apparatus of FIG. 1 is shown in ice FIGS. 6 and 7. In this instance the female die 14' has been slightly modified as will be set forth in detail hereinafter.
  • a suitable control means is employed whereby the interrelated movements, to be subsequently described, of the ram 12, die 14 or 14 as the case may be, and portions of the platen 16 can be properly coordinated and synchronized.
  • An appropriate control circuit 18 for effecting these movements is diagrammatically shown in FIG. 1 and although this circuit will be subsequently described with particular reference to the embodiment of the apparatus of FIG. 1 it is to be understood that the control circuit 18 can be used to equal advantage in the case of the modified embodiment of FIGS. 6 and 7.
  • the ram 12 of the apparatus 10 in FIG. 1 is connected to a conventional supporting structure (not shown) of the forming apparatus 10 whereby the ram 12 can be advanced between the ends of the apparatus 10 by means of an actuator 20 which includes a iiuid actuated piston 22 connected to a piston rod 24.
  • the exposed end of the rod is aixed to the body portion 26 of the ram 12.
  • the forming end or draw ring 27 of the ram body 26 includes, as indicated in FIG. 1, a circular cutting edge 28 defined by the intersection between the outer cylindrical surface 30 and the annular end surface 32 of ring 27.
  • the cutting edge 28 on the ram 12 cooperates with an opposed cutting edge on the platen 16 of the apparatus to sever a flat blank from a strip of material S" fed intermittently across platen 16y by suitable means (not shown) in a manner conventional in the art.
  • the female die 14 advantageously comprises a pair Of slidably interfitted elements for movement in an axial direction relative to each other. More specifically, the female die 14 includes an outer draw ring 42 mounted for slidable movement relative to the bottoming die element 44.
  • the inner surface 48 of the draw ring 42 is arranged in slidable surface-to-surface contact with the outer cylindrical surface 46 of the bottoming die element 44.
  • the inner end of the interior cylindrical surface 34 at the forming ring or end 27 of the rant body 26 terminates against an intermediate plate Si) wherein the plate 5t) extends transversely of the rarn body 26 and acts as a backer plate for the form ing end 27 of the ram 12.
  • the outer cylindrical surface 52 of the draw ring 42 is disposed in slidable surface-tosurface engagement with the interior and forward cylindrical surface 36 at the forming end 27 of the ram 12.
  • the bottoming die element 44 is resifiently suspended from the plate 50 of the ram body 26 as follows.
  • a series of equally spaced openings 54 extend through the plate 50. Each end of each opening 54 is counterbored such that it is enlarged relative to the intermediate portion of the opening.
  • a threaded cap screw 56 is passed through the counterbored openings 54 whereby its head end is disposed within one of the enlarged ends f an opening 54.
  • a coil spring 60 surrounds the lower part of each cap screw 56 and is interposed within the other counterbored end of the opening 54 and the upper surface 61 of the bottoming die portion 44.
  • the bottoming die element 44 is resiliently mounted relative to the intermediate plate 50 when the cap screw 56 is passed through the opening S4 so that the head of the screw 56 is located within the larger counterbore while the shank of the cap screw 56 passes through the opening S4 and the coil spring and into threaded engagement with threaded openings not shown within the bottoming die portion 44.
  • FIGS. l-4 It is believed obvious from an inspection of FIGS. l-4 that downward movement of the bottoming die element 44 relative to plate 50 is limited by virtue of the contact between the head of the cap screws S6 and the radial shoulder of the larger counterbore at the upper end of the axial opening 54.
  • the coil spring 60 advantageously limits the extent to which space between the bottoming die element 44 and the intermediate plate 50 is reduced when a load is imposed upon the -bottoming die element 44.
  • FIG. l Although only two openings 54 and two cap screws S6 and coil springs 60 are shown in FIG. l, it is to be understood that any number can be provided about the longitudinal axis of the apparatus to properly resiliently suspend or mount the bottoming die element 44 relative to plate t).
  • the forwardly projecting surfaces of elements 42 and 27 making up the female die 14 advantageously perform a dual function in that they act as blank forming as well as blank clamping and sealing surfaces.
  • the forwardly projecting planar surface 62 of the bottoming die element 44 acts as a forming surface and extends laterally to intersect the inner surface 46 of ring 42.
  • the draw ring 42 includes a frusto-conical forming surface 64 which extends downwardly and outwardly to intersect the lower annular surface 66.
  • the annular surface 66 extends radially outward from its intersection with surface 64 t0 intersect the outer surface 52 of the draw ring 42.
  • the upper end of the frusto-conical surface 64 intersects the inner surface 48 of the draw ring 42 at a point intermediate the length thereof.
  • This forming surface 64 of the draw ring 42 advantageously cooperates with the forming surface 62 of the bottoming die portion 44 during operation of the device to form the inner portion of the workpiece W in a unique manner.
  • the draw ring 42 is yieldably urged to a forwardly extended position by the fluid biasing means described hereinafter.
  • An annular flange 68 formed at the upper end of the outer surface 52 of the draw ring 42 is adapted to abuttingly engage the internal shoulder 38 of the forming ring 27 whereby the forward extent of the forwardly biased draw ring 42 wil be limited in accordance with the engagement of the flange 63 with the shoulder 3S.
  • the aforementioned biasing means includes a closed pressure chamber 74 within which a free piston 76 is disposed and a series of freely mounted pins 82 extending through openings S4 in plate 50 and between the piston 76 and the upper annular surface 72 of the draw ring 42 for mechanically and loose ⁇ y interconnecting the piston 72 to the ring 42.
  • the openings 84 have their centers spaced along a circumference, the center of which substantially coincides with the longitudinal axis of the apparatus.
  • Appropriate sealing rings 80 can be mounted in a suitable fashion within an appropriate opening in the periphery of the piston 76 in order to properly seal the piston 76 within the chamber 74 on the pressure side of the piston 76.
  • Ath-ough only two pins 82 are shown in FIG. l, it is to be understood that any number of pins 82 can be used.
  • the upper outer periphery of the bottoming die element 44 is cut away in appropriate areas to dene inwardly extending recesses S6 for receiving each pin S2.
  • Each recess 86 is so formed whereby the segmented cylindrical surfaces 88 thereof intersect the outer cylindrical surface 46 of the bottoming die element 44.
  • the lower end of a segmented surface S8 is closed off by a transverse surface 90 of die element 44 while the upper end thereof intersects the upper surface 61 of the botoming die element 44.
  • the outer peripheral portions of the blank are positively clamped and sealed between the advancing ram 12 and the platen 16.
  • the annular end surface 66 of the draw ring 42 is disposed in general alignment with the outer periphery of the surface 104 of the inner platen element 96 whereby the advancing ram 12 causes the end surface 66 of the draw ring 42 and the directly opposed periphery of the platen surface 104 to be in positive clamping and sealing contact with opposite sides of the outer peripheral section of the marginal portions of the blank.
  • Compression of the biasing fluid results in bringing about operation of the control circuit 18 to be described for timely admitting the desired amount of fluid through line 122 against the underneath surface of the clamped blank so as to explosively stretch and permanently deform the inner portion of the blank by forcing the inner part of the blank against the forming surfaces 62 and 64 of the female die element 14.
  • the platen 16 on the other hand is made up of a series of interconnected elements, one of which moves relative to the other fixed elements whereby all portions of the platen 16 cooperate with the forming end 27 of the ram 12 to advantageously form the container W from a blank cut from the fed strip S.
  • the platen 16 includes a base or bed 92, an outer ring 94, an inner bed plate 96 concentrically disposed and spaced radially inward relative to the outer ring 94 and an elevatable intermediate ring 98.
  • the ring 98 not only moves relative to the ring and plate 94 and 96 but also cooperates with tbe forming ring 27 of the ram 12 during its advancement and retraction.
  • the upper annular surface 100 of the outer ring 94 assists in the guiding of the strip S onto the platen 16 as shown in FIG. 1. It is to be understood, although not shown, that any suitable feeding mechanism can be used to feed a strip of foil material onto the platen 16.
  • the inner peripheral edge 115 of the upper surface 100 of the ring 94 cooperates with the outer peripheral edge 28 of the forming ring 27 of the ram 12 to effect the initial severance of the blank from the strip S during a moment of dwell in the intermittent advance of strip S which is coordinated with the downward stroke of the press upon the advance of the forming end of the ram beyond the cutting edge 115 as shown in FIG. 2.
  • the remaining portion of the severed strip S represents the next portion to be fed onto the platen 16 and then cut into a blank to be formed into a workpiece W.
  • the intermediate ring 98 is disposed for upward movement within a clearance space 107 defined by inner cylindrical surface 121 of ring 94 and by the series of outer peripheral surfaces of plate 96, namely, outer surfaces 113 and 120 and annular surface 114 extending between and connecting the inner ends of surfaces 113 and 120.
  • the ring 98 is connected to the actuator 102 for limited movement within recess 107 relative to the platen elements 94 and 96.
  • the actuator 102 comprises a closed cylinder for containing a piston 105 connected to rod 106.
  • the rod 106 protrudes through the cylinder of the actuator and is connected to an intermediate plate member 108.
  • a series of conventional lift pins 110 are affixed at one end to the member and at the other end to the ring 98.
  • the pins 110 are spaced from each other in such a fashion that the longitudinal axes of the pins 110 are preferably disposed along a circle, the center of which coincides with the longitudinal axis of the rod 106.
  • Each pin 110 in being alxed to the ring 98 and member 108, passes freely through an aligned cylindrical opening 111 provided in the support member 92. Although only two pins 110 are shown in FIG. 1, it is to be understood that any number can be used.
  • the upper surface 116 of the ring 98 is in substantial planar alignment with the upper surfaces and 104 of the inner and outer platen elements 94 and 96 by virtue of the abutting contact between the lower annular surface 112 of the ring 98 and the annular shoulder 114 on the plate 96.
  • the forward surface 32 on ring 27 cooperates with surface 116 of the ring 98 to overcome the biasing action of the ring 98 and effect severance of the fed blank from the strip S as will now be described.
  • the upwardly biased platen ring 9-8 maintains surface-to-surface contact between end surface 32 of the ram 12 and end surface 1116 of the ring 98 in order to effect curling of the ironed marginal edge of the severed blank.
  • the shape of the surface 118 extending between the surfaces 116 and 11-7 on the ring 98 is toroidally complementary to the toroidally shaped surface 40 on the forming end of the ram 12 as aforedescribed.
  • the toroidally shaped surface 118 of the ring 9'8 is of concave curvature in transverse section and is oppositely disposed to the toroidally shaped surface 4t) on the ram 12.
  • the diameter off the inner surface 1'17 of the ring is slightly in excess of the diameter of surface 120 ⁇ of the inner portion 96 of the platen so as to have sliding contact therewith.
  • This sliding contact assures curling of the marginal edge to the blank within the complementarily shaped portions 40 and 11S upon retraction of the ram 12 and the biased upward movement of the platen ring 98 until the lower annular surface 112 of the ring 98 abuts the opposed annular surface 114 of element 96 as shown in FIG. 4.
  • the curled edge to the workpiece W formed by the apparatus of the instant invention is shown in FIG. 5A.
  • a compressed gaseous iiuid is controllably and explosively admitted through a suitably bored passageway 122 provided in the inne-r plate 96 and element 92 of platen 16.
  • One end of the passageway is assente connected to piping of the control circuit ⁇ 18 while the other end of the passageway intersects the surface 11M of the platen plate 96 preferably at a point which coincides with the longitudinal axis of the apparatus.
  • vent openings V in the forming end of the ram 12 are disposed transversely of the apparatus and the other vent openings in the botto'ming die element are disposed longitudinally of the apparatus 10. It is believed to be readily apparent upon an inspection of FIGS. 1-4 that the openings V clearly and freely vent atmospheric conditions to the side of the formable inner portion of the workpiece W, facing directly lopposite the forming surfaces 62 and 64 of the die 14.
  • the principal operations which take place during a full operating cycle of the press and during the intermittent feeding of foil or foil-like material between the ram 12 and platen 16 are as follows. Firstly, a positive clamping and sealing of the marginal portions of the blank between the surface 66 of the draw ring 42 and the periphery of surface 104 of the inner platen portion 96 takes place. Secondly, a severing of the blank from the fed strip S" occurs as a result of the cooperative action of edges 2S and 115 of the ram 1-2 and platen portion 94. Thirdly, after severance of the blank, a folding and ironing of the marginal edge of the blank occurs due to the action of surface 36 of the ram 12 and surface 120 of the plate 96.
  • a partial stretching and deformation of the inner portion of the blank occurs due to explosive forcing of the blank against the surface 62 of the bottoming die portion 44 and prior to retraction of the biased draw ring 42 against the flange 70 of the bottoming die portion 44 as shown in FIG. 2.
  • a complete stretching and deformation of the inner portion of the blank occurs as a result of explosive forming of the blank against the surfaces 62 and 64 of the die when the draw ring 42 abuttingly contacts the ange '70.
  • the folded and ironed marginal edge of the blank is curled back upon itself during retraction of the ram 12 by virtue of the end surface 1'16 of the upwardly 4biased platen ring 9S maintaining abutting contact with the end surface 32 of the ram 12 ⁇ whereby the toroidally shaped surfaces 40 and 118 cooperate to form the curled edge.
  • control circuit 1S can include a cam shaft 124 driven by a motor 126. One end of the shaft 124 is anchored to a bearing support 128. Aiixed to cam shaft 124 in a series of spaced cams 13G, 132 and 134. Each cam 130, 132 and 134 operates in timed sequence to one another to control appropriate valve mechanisms 136, 138 and 140. Valve mechanism 1'36 is connected to a suitable source of air or uid under pressure by means of conduit also provided with an operator controlled inlet valve 142.
  • valve 136 When tripped by the cam, valve 136 directs the pressurized air from supply conduit 146 to either side of the piston 105 within the actuator 102 by means of interconnecting lines 142 and 144 in a well-known manner. As aforedescribed, the actuator 102 functions to bias the platen ring 98 to an upward position. Any excess of pressurized air within the lines 142, 144 and 140 can be directed into the exhaust line 146 by appropriate elements, not shown, in the valve 136.
  • the second cam actuated valve 138 is connected in parallel fashion across the air supply line 140 by means of supply line 142'. Prior to passage of the compressed air within supply line 142' through the valve 13S, the compressed air is directed to chamber 74 by interconnecting line 148 for further compression as aforedescribed. To prevent the further compressed fiuid from passing Iback into the supply line 142', a check valve 146 is disposed in the line 142 adjacent the connection of line 148.
  • valve 138 Upon operation of valve 138 by its associated cam 132, valve 138 admits a predetermined amount of further compressed uid from the chamber 74 to the platen passageway 122 for explosively forming or forcing the inner portion of the clamped blank against the forming surfaces 62 and 64 of the die plate 14 in the laforedescribed manner. In the event an excess of compressed fluid occurs in the line 159 or the supply lines 142 and 148, it is released through exhaust line 151 by appropriate means (not shown) provided within the valve 138.
  • valve 140 when properly actuated by its associated cam 134 supplies fluid under pressure to either side of the piston 22 within the actuator 20 for advancing and retracting the ram 12.
  • Valve 140 is connected to a reservoir 152 by a conduit 154 having a fluid pump 156 disposed therein whereby the pump 156 directs uid under pressure from the reservoir 152 to the valve 140.
  • Huid under pressure will be directed by the conduits 158 and 160 extending between the valve 140 and the actuator 20 to either side of the piston 22. Any excess fluid from conduits 158, 160 and 154 is directed yby appropriate means (not shown) within valve device 140 through the return conduit 162 extending between the valve mechanism 140 and the reservoir 152.
  • the forming apparatus 10 can be cyclically operated to form the smooth Wall container from the intermittently advancing strip S. It is also to be understood that the feeding mechanism for feeding the strip of material S" between the ram 12 and the platen 16 would be operated by suitable means (not shown) for fully synchronizing the operations of the control circuit 18 with the feeding of the strip S" to the press.
  • FIGS. 6 and 7 In the modified embodiment of FIGS. 6 and 7, it is to be understood that like parts are correspondingly numbered as in the aforedescribed embodiment of FIGS. 1-4.
  • the embodiment of FIGS. 6 and 7 has been advantageously modified to incorporate a one-piece fem-ale die 14'.
  • female die 14 has similarly shaped forming surfaces 164 and 166, but in this instance these surfaces comprise an integral part of the female die 14 instead of being formed of separate parts as is the case with the bottoming die element 44 and the draw ring 42 in the aforedescribed embodiments of FIGS. 1 4.
  • die 14 Since the female die 14 is yof one-piece construction, it is only necessary to resiliently mount the die to a forwardly extended position relative to the forward end of the forming ram in a similar fashion as described in FIGS. 1-4. In order to effect this, die 14 is biasingly mounted within the ram 12 by the series of pins 82, only one of which is shown. These pins extend between the piston 76 and the upper surface 61 of the die 14. Forward movement of the onepiece die 14 is limited by a flange 68 abutting the internal shoulder 38 of the ram 12.
  • the one-piece die 14' in forming the smooth wall container, does not form as sharp a radius between the side wall and the bottom wall as the aforementioned relatively sharp radius of the container produced by the two-piece die 14 of FIGS. l-4.
  • An apparatus for explosively forming a blank of relatively thin foil material and the like into a container of a selected configuration having substantially smooth walls and marginal edges comprising the combination of a reciprocating ram and a platen adapted to cooperate With the ram in forming the container, cooperating surfaces on the ram and platen for engaging and clampingly sealing the outer marginal portion of the container therebetween and from the atmosphere upon bottoming of the rarn, certain of said cooperating surfaces also being slidably arranged relative to each other whereby during actuation of said ram and prior to the bottoming thereof they will also effect an ironing and smoothing of the outer peripheral edge of said marginal portion and a bending of the outer peripheral edge of said outer marginal p0rtion relative to the remainder thereof, means for directing a fluid at a relatively high pressure and a relatively high velocity against one side as Well as the inner portion of the container during the clampingly sealed engagement of the marginal portion of the container with the said cooperating surfaces of the ram and platen to explosively form, and container backup means on the ram disposed
  • An apparatus as set forth in claim 1 including means of venting certain portions of the ram to the atmosphere during operation of the apparatus.
  • An apparatus as set forth in claim 1 including means located in the central portion of the platen for explosively directing said fluid against the one side and inner portion of the container.
  • An apparatus for explosively forming a blank of thin metallic foil and the like into a container of a predetermined conguration having substantially smooth walls and marginal edges comprising lthe combination of a reciprocating ram and a platen adapted to cooperate with the ram in the forming of the container, cooperating surfaces on the ram and platen for engaging and clampingly sealing the outer marginal portion of the container therebetween and from the atmosphere upon bottoming 0f the ram, certain of said cooperating surfaces also being slidably arranged relative to each other whereby during actuation of said ram and prior to the bottoming thereof they will also effect an ironing and smoothing of the outer peripheral edge of said marginal portion and a bending of the outer peripheral edge of said outer marginal portion relative to the remainder thereof, means located in said platen for directing uid at a relatively high velocity and a relatively high pressure against one side of as Well as against the inner portion of the container during the clampingly sealed engagement of the marginal portion of the container with the said cooperating surfaces of the ram and platen to explosively
  • An apparatus as set forth in claim 5 including air means located in the central portion of the platen for eX- plosively directing said fluid against the one side of and inner portion of the container.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US516330A 1965-12-27 1965-12-27 Apparatus for forming foil containers Expired - Lifetime US3380272A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US516330A US3380272A (en) 1965-12-27 1965-12-27 Apparatus for forming foil containers
GB56069/66A GB1162150A (en) 1965-12-27 1966-12-14 Improvements in or relating to the Formation of Containers
LU52696D LU52696A1 (cs) 1965-12-27 1966-12-23
FR88622A FR1511177A (fr) 1965-12-27 1966-12-23 Dispositif de fabrication d'un récipient à partir d'un flan d'une matière en feuille
LU52686A LU52686A1 (cs) 1965-12-27 1966-12-23
CH1856366A CH454783A (de) 1965-12-27 1966-12-27 Vorrichtung zum Stossverformen
BE691771D BE691771A (cs) 1965-12-27 1966-12-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US516330A US3380272A (en) 1965-12-27 1965-12-27 Apparatus for forming foil containers

Publications (1)

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US3380272A true US3380272A (en) 1968-04-30

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US516330A Expired - Lifetime US3380272A (en) 1965-12-27 1965-12-27 Apparatus for forming foil containers

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US (1) US3380272A (cs)
BE (1) BE691771A (cs)
CH (1) CH454783A (cs)
FR (1) FR1511177A (cs)
GB (1) GB1162150A (cs)
LU (2) LU52696A1 (cs)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668914A (en) * 1969-12-31 1972-06-13 Bogdan Vyacheslavovich Voitsek Method of stamping metal convex articles from sheets
US3868917A (en) * 1969-08-29 1975-03-04 Reynolds Metals Co Sealed container and apparatus for and method of sealing same
US4206627A (en) * 1978-10-23 1980-06-10 Diaz Miguel A Unitary mold-press structure
US4770015A (en) * 1985-12-04 1988-09-13 Usinor Aciers Process and device for press-forming sheet material having a small elongation
US5415021A (en) * 1993-10-29 1995-05-16 Folmer; Carroll W. Apparatus for high pressure hydraulic forming of sheet metal blanks, flat patterns, and piping
US6553804B2 (en) * 2000-03-31 2003-04-29 Acb Pressure Systems Hooking system for a tooling lid onto the sliding plate of a hot forming press
US20040103707A1 (en) * 2000-12-12 2004-06-03 Andreas Winters Internal high pressure forming device and method and corresponding tool system
CN102716964A (zh) * 2012-06-30 2012-10-10 惠州市金山电子有限公司 一种金属振膜成型设备
DE102012207390A1 (de) * 2012-05-04 2013-11-07 Bayerische Motoren Werke Aktiengesellschaft Blechbearbeitungswerkzeug mit einem am Werkzeugoberteil gehaltenen relativbeweglichen Niederhalter und mit einer Mitnehmereinrichtung sowie einer Stelleinrichtung für diesen Niederhalter
CN114775011A (zh) * 2022-05-13 2022-07-22 藤县加裕电子科技有限公司 铝引导箔裁切口氧化膜补形成系统及工艺
CN116984467A (zh) * 2023-09-26 2023-11-03 合肥工业大学 一种超薄金属极板超声辅助精确成形方法

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US2284773A (en) * 1940-04-16 1942-06-02 Bell Telephone Labor Inc Method of forming thin articles
US2728317A (en) * 1951-10-23 1955-12-27 Walton S Clevenger Apparatus for hydraulic die forming
US2899922A (en) * 1959-08-18 Apparatus for forming receptacles
US2912951A (en) * 1950-12-13 1959-11-17 Melville F Peters Method of and means for forming bellows
US2968270A (en) * 1955-08-05 1961-01-17 Kaiser Aluminium Chem Corp Apparatus for forming receptacles
GB1012378A (en) * 1964-08-10 1965-12-08 Alusuisse Improvements relating to shaping metal foil containers

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Publication number Priority date Publication date Assignee Title
US2899922A (en) * 1959-08-18 Apparatus for forming receptacles
US2284773A (en) * 1940-04-16 1942-06-02 Bell Telephone Labor Inc Method of forming thin articles
US2912951A (en) * 1950-12-13 1959-11-17 Melville F Peters Method of and means for forming bellows
US2728317A (en) * 1951-10-23 1955-12-27 Walton S Clevenger Apparatus for hydraulic die forming
US2968270A (en) * 1955-08-05 1961-01-17 Kaiser Aluminium Chem Corp Apparatus for forming receptacles
GB1012378A (en) * 1964-08-10 1965-12-08 Alusuisse Improvements relating to shaping metal foil containers

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868917A (en) * 1969-08-29 1975-03-04 Reynolds Metals Co Sealed container and apparatus for and method of sealing same
US3668914A (en) * 1969-12-31 1972-06-13 Bogdan Vyacheslavovich Voitsek Method of stamping metal convex articles from sheets
US4206627A (en) * 1978-10-23 1980-06-10 Diaz Miguel A Unitary mold-press structure
US4770015A (en) * 1985-12-04 1988-09-13 Usinor Aciers Process and device for press-forming sheet material having a small elongation
US5415021A (en) * 1993-10-29 1995-05-16 Folmer; Carroll W. Apparatus for high pressure hydraulic forming of sheet metal blanks, flat patterns, and piping
US6553804B2 (en) * 2000-03-31 2003-04-29 Acb Pressure Systems Hooking system for a tooling lid onto the sliding plate of a hot forming press
US20040103707A1 (en) * 2000-12-12 2004-06-03 Andreas Winters Internal high pressure forming device and method and corresponding tool system
DE102012207390A1 (de) * 2012-05-04 2013-11-07 Bayerische Motoren Werke Aktiengesellschaft Blechbearbeitungswerkzeug mit einem am Werkzeugoberteil gehaltenen relativbeweglichen Niederhalter und mit einer Mitnehmereinrichtung sowie einer Stelleinrichtung für diesen Niederhalter
CN102716964A (zh) * 2012-06-30 2012-10-10 惠州市金山电子有限公司 一种金属振膜成型设备
CN102716964B (zh) * 2012-06-30 2015-03-11 惠州市金山电子有限公司 一种金属振膜成型设备
CN114775011A (zh) * 2022-05-13 2022-07-22 藤县加裕电子科技有限公司 铝引导箔裁切口氧化膜补形成系统及工艺
CN114775011B (zh) * 2022-05-13 2023-08-11 藤县飞乐电子科技有限公司 铝引导箔裁切口氧化膜补形成系统及工艺
CN116984467A (zh) * 2023-09-26 2023-11-03 合肥工业大学 一种超薄金属极板超声辅助精确成形方法
CN116984467B (zh) * 2023-09-26 2023-12-15 合肥工业大学 一种超薄金属极板超声辅助精确成形方法

Also Published As

Publication number Publication date
GB1162150A (en) 1969-08-20
BE691771A (cs) 1967-05-29
LU52696A1 (cs) 1967-02-23
LU52686A1 (cs) 1967-02-23
FR1511177A (fr) 1968-01-26
CH454783A (de) 1968-04-30

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