US3581545A - Metal extrusion press of turntable type - Google Patents

Metal extrusion press of turntable type Download PDF

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Publication number
US3581545A
US3581545A US702320A US3581545DA US3581545A US 3581545 A US3581545 A US 3581545A US 702320 A US702320 A US 702320A US 3581545D A US3581545D A US 3581545DA US 3581545 A US3581545 A US 3581545A
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Prior art keywords
extrusion
turntable
containers
container
press
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US702320A
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English (en)
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Akira Asari
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Kobe Steel Ltd
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Kobe Steel Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels for metal extruding
    • B21C35/06—Cleaning dies, ducts, containers or mandrels

Definitions

  • the press cycle is determined in terms of the sum of the periods of time required for both sort of operations.
  • the press cycle is regarded as being destined to be much longer than the extrusion period.
  • extrusion presses are usually called multicontainer type presses wherein some containers for billets are carried by a container holder arm, so that either by revolving the holder arm around an axis parallel to the direction of extrusion or by reciprocating it in one axial direction, the individual containers are caused to move between an extrusion station and a preparatory operation station.
  • the container holder arm and the containers are affected to such an extent as to be expanded, resulting in misalignment between the centerline of the container and the extrusion centerline.
  • the container centerline necessarily extends laterally (radially) with respect to said support rod, so that it becomes necessary to provide a special adjusting mechanism in the attaching part between the container holder arm and the containers in order to cope with said thermal influence.
  • An object of this invention is to provide a multicontainer type metal extrusion press free from the above-mentioned disadvantages.
  • objects of the invention are to provide a metal extrusion press having a greatly decreased presscycle; to provide a multicontainer type press in which alignment or centering of individual containers can be independently effected; to provide a press in'which there is no need of especially increasing the distance between press support rods; to provide a multicontainer type press in which repair and replacement of containers can be conveniently effected; to provide a press having a large space allowing the preparatory operations to be effected with good visibility; to provide a press in which mechanical vibrations accompanying the preparatory operations are hardly transmitted to the press proper; to provide a press having no restrictions on the design and installation of the preparatory operating means; and to provide a multicontainer type press which is very advantageous to the concomitant installation of piercing press for extruding pipes.
  • a turntable type metal extrusion press characterized by comprising a revolvable turntable located forwardly of an extrusion stem and having a plurality of containers distributively secured thereto in such a manner that as the tumtable is intermittently revolved the containers are brought to an extrusion station one by one; preparatory operation stations positioned adjacent the outer periphery of the turntable correspondingly to the stop position of the individual containers, whereby the extruding and preparatory operations are carried out at the extrusion station and preparatory operation stations with respect to the separate containers.
  • extrusion residue removing means Distributively installed at the preparatory operation stations are extrusion residue removing means, means for cleaning the inner surface of the container used for extrusion, means for charging the container, whose inner wall has been cleaned, with a billet to be extruded, and means for charging a new die.
  • These preparatory operating means each have their respective functions, which will be applied to containers which have arrived at the preparatory operation stations at which said means are installed.
  • a piercing press is installed at a preparatory operation station, whereby prior to extrusion a billet is pierced to provide a hollow billet.
  • the turntable is a horizontal one adapted to revolve around the axis of a vertical shaft, but it may be an inclined one adapted to revolve around the axis of a shaft forming an acute angle with the vertical.
  • the axes of the containers secured to the turntable are radially directed toward the center of revolution of the turntable. But it is not absolutely necessary to fix the containers to the turntable and the direction in which the containers are secured may be variable. Particularly, when a piercing press is concomitantly installed, it is desirable that the containers be so secured as to be revolvable around their own axes.
  • the driving mechanism for revolving the containers a system in which a gear type transmission mechanism is incorporated is usually useful, but other systems may be employed.
  • the driving mechanism for the extrusion stem may be a hydraulically operated one as in the usual press.
  • a mandrel necessary to a press for extrusion-shaping pipes is used jointly with the hollow extrusion stem.
  • This mandrel is usually hydraulically driven.
  • this mandrel is a rodlike one adapted to be moved back and forth, but it is possible to use a set of two or more mandrels in order to ensure a perfect cooling effect. In that case, by using such mandrels alternately one at a time, a mandrel which has been used may be fully cooled until its next use.
  • the die charging means is such as uses a revolvable frame as in the usual extrusion press, but other types may be utilized.
  • FIG. 1 is a plan view, in cross section, of an example of a turntable type metal extrusion press according to this invention
  • FIG. 2 is a section taken along the line IIII of FIG. 1;
  • FIG. 3 is a plan view, in cross section, of a multimandrel mechanism
  • FIG. 4 is a partial section taken along the line IV-IV of FIG.
  • FIG. 5 is a plan view, in cross section, of an example of a pipe extrusion press.
  • FIG. 6 is a section taken along the line VI-Vl of FIG. 5.
  • FIGS. 1 and 2 An extrusion press using no mandrels is shown by way of example in FIGS. 1 and 2.
  • An opposed frame I on the left-hand side and a cylinder frame 2 are interconnected by support rods 3, said cylinderframe 2 being provided with a main cylinder 4 in which is slidably fitted a ram 6 to which a cross-head 5 is secured, thus constituting drive means for a stem 7, to be later described. That is, this stem 7 is secured to said cross-head 5 in such a manner as to face front.
  • the stem 7 may be hollowed to allow the mandrel to pass therethrough, as is known in the art.
  • the cylinder frame 2 is provided with a mandrel-retuming cylinder (not shown) slidably receiving a piston (not shown) connected to said cross-head 5, it thus being so arranged that after the completion of extrusion work the stem 7 may be returned.
  • a mandrel-revolving cylindrical body 12 is rotatably supported in an eccentric position in said cylinder frame 2.
  • the rear end of the revolving cylindrical body 12 is revolvably supported in the base by a support block 13.
  • mandrel-revolving cylindrical body 12 is peripherally provided with a gear wheel 14 meshing with a gear wheel 16 secured to the end of a shaft extending from an electric motor 15, so that the mandrel-revolving cylindrical body 12 can be revolved by driving the electric motor 15.
  • the mandrel-revolving cylindrical body 12 is longitudinally bored with two parallelly spaced holes in which are slidably fitted mandrel-driving cylinders 17a and 17b, respectively, in which, in turn, mandrel pistons 18a and 1811 are fitted, respectively, one end of each mandrel piston is secured to said revolving cylindrical body 12, and the mandrel pistons 18a, 18b and the mandrel-driving cylinders 17a, 17b constitute front chambers 19a, 19b and rear chambers 20a, 20b, respectively, said front chambers 19a and 1% being pressurized to advance mandrels 21a and 21b to be later described toward the opposed frame 1, said rear chambers 20a, and 2011 being pressurized to retract the mandrels 21a and 21b.
  • the reference numeral 23 designates a disclike die-revolving plate which has a centerline located above the extrusion centerline and which is revolvably supported by a pin 25 on the side of the opposed frame 1 nearer to the stem 7.
  • the die-revolving plate 23 has a gear 28 provided on the outer periphery thereof meshing with a gear 27 secured to the end of a shaft extending from an electric motor 26 so that by driving the electric motor 26 the die-revolving plate 23 may be revolved.
  • Secured to the die-revolving plate 23 are two die holders 24a and 24b having dies 29a and 29b removably secured thereto, respectively.
  • the axis of the die holder thus moved comes into alignment with the extrusion centerline and the rear part of said plate is supported by the opposed frame 1 through a receiving disc 30 secured to the side of the opposed frame I nearer to the stem 7.
  • cutting saw drive means 31 Disposed below the side of the opposed frame 1 nearer to the stem 7 is cutting saw drive means 31 having a cutting saw 310 attached thereto, said cutting saw drive means being adapted to be advanced and retracted at right angles to the extrusion centerline.
  • a circular platelike centrally cutout turntable 32 is installed around the opposed frame 1 so as to be supported at its lower surface by a bed 33.
  • the outer periphery of the turntable is provided with a gear 34 meshing with a gear 35 driven by an electric motor (not shown) so that by driving the latter the turntable 32 may be revolved.
  • the center of revolution of turntable 32 is on the side of the opposed frame 1 opposite the stem '7 and is at right angles to the extrusion centerline.
  • Each holder 38 is axially slidable with respect to the associated outside holder 37.
  • each outside holder 37 is provided with container driving cylinders 40 extending in parallel to the axial direction. Fitted in each container driving cylinder 40 is a piston 41 having one end thereof connected to the flange of said container holder 38, so that when the container driving cylinders 40 are driven the container holders may be axially moved.
  • Containers 39a, 39b and 390 are rigidly fitted in the respective container holders 38.
  • movable conveyors 42a, 42b and 420 are secured to the upper surface of the turntable 32 in equispaced relation, each extending radially between adjacent containers.
  • a fixed conveyor 43 is so provided to be positioned below an extension of the extrusion centerline.
  • a fixed taking-out conveyor 44 is provided in front of the turntable 32 so as to be positioned below said extension of the extrusion centerline.
  • extrusion residue removing and cleaning means 45 positioned outside the turntable 32.
  • this extrusion residue removing and cleaning means 45 serves to remove extrusion residues, dies and pusher discs and clean the inner walls of containers.
  • This means 45 is driven by a cylinder mechanism 46 having a piston rod 48 which is provided with an extrusion residue removing plate 47 secured to the front end thereof and a brush 47a.
  • the extrusion residue removing plate 47, brush 47a and piston rod 48 are free to move into and away from the container 3% (it being noted that such container is changed once for each extrusion).
  • the extrusion residue removing and cleaning means is usually so installed as to extend radially through the center of the turntable, but when it is desired to render containers revolvable around their own axes, it may, for example, be so installed as to extend parallel to the extrusion centerline.
  • billet charging means 49 positioned outside the turntable 32.
  • the means 49 serves to charge a billet and a pusher disc to the container 39c.
  • the billet charging means is driven by a cylinder mechanism 50 receiving a piston rod 51 having an inserter plate 52 secured to the front end thereof, said inserter plate 52 and piston rod 51 being free to move toward and away from the container 390 positioned in front of the billet charging means 49.
  • the billet charging means 49 also is so installed as to extend radially of the turntable 32, it may be modified so that it extends in other direction.
  • the container 39a which has already undergone cleaning of the inner surface thereof and has been charged with a billet 53 and a dummy block 54, is positioned at the extrusion station A.
  • one die holder 240 secured to the die-revolving holder 23, and the die 29a have been positioned on the extrusion centerline.
  • the container driving cylinders 40 are driven to move the container 390 toward the opposed frame 1 until the front surface of the container 39a abuts against the die holder 24a, while the main cylinder 4 is pressurized to advance the stem 7 to apply pressure to the end face of the billet 53 through the dummy block 54, thereby extruding the material 53a.
  • the thus extruded material 530 is supported by the fixed conveyor 43, movable conveyor 42a and fixed conveyor 44 positioned in front of the opposed frame I.
  • hollow billets are used along with mandrels.
  • the multimandrel shown in FIGS. 3 and 4 prior to driving the stem 7 the front chamber of the aforementioned mandrel driving cylinder 17a to advance the mandrel 21a to pass through the holes in the pusher disc 54 and billet 53 to insert the front end of the mandrel 210 into the die 29a. And, in this condition, extrusion may be operated.
  • the container driving cylinders 40 are driven to retract the container 39a toward the side opposite the opposed frame 1.
  • the extruded material 53a without being pulled out from the container 39a by reason of the friction between the inner surface of the container 39a and the extrusion residue 53b, moves as the container is moving, with part of the rear end of the extrusion material 53a exposed to the outside between the front surface of the die holder 24a and the rear surface of the container 39a.
  • the cutting saw-driving means 31 is advanced so that the extrusion residue 53b and the extruded material 53a are separated from each by being cut with the cutting saw 310.
  • the die 29a is pulled toward the side opposite the die holder 24a owing to the friction between the inner surface of said die 29a and the outer surface of the extrusion residue 53b so that the die 29a and the die holder 24a are separated from each other, with the die 29a moving as the container 39a is moving; after all, as a result of the aforementioned cutting operation, the extrusion residue 53b, die 29a and dummy block 54 are left in the container 39a.
  • the rear chamber of the mandrel driving cylinder 17a is pressurized to pull out the mandrel 210 from the extrusion residue 53b, and after the cylinder is retracted to its rearmost position the stem 7 is retracted.
  • the electric motor 26 is driven to revolve the die revolving plate 23 so as to move the die holder 24b having a new die 29b mounted thereon into alignment with the extrusion centerline.
  • the extrusion operation and the first and second preparatory operations are concurrently carried out in one cycle.
  • the gear 35 is driven to revolve the turntable counterclockwise through
  • the three containers 39a, 39b, 39c that were at the respective stations A, B, C have now been moved to the respective next stations B, C, A, where the respective operations in the next cycle are carried out. That is, the container 39a that was at the extrusion station A is moved while carrying with it the extrusion residue, etc. remaining therein to the second preparatory operation station B, where removal of the extrusion residue, etc. and cleaning of the inner surface are operated.
  • the container 39b that was at the first preparatory operation station B is moved to the second preparatory operation station C, where charging of a billet 53 is operated.
  • the container that was at the second preparatory operation station C is moved while containing a new billet to the extrusion station A, where extrusion is operated.
  • three runs of extrusion are effected per revolution of the turntable 32.
  • the extrusion residue removing and cleaning means 45 and the billet charging means 49 are installed at separate: stations, but they may be installed at a common station in opposed or parallel relation to each other.
  • removal of the extrusion residue is effected by the extrusion residue removing and cleaning means 45; however, it may be effected by causing the stem 7 to push out the extrusion residue from the container 39a immediately after completion of cutting of the extrusion residue, while the extrusion residue removing and cleaning means may be used solely to clear the inner surface of the container 39a.
  • FIGS. and 6 there is shown an example of a pipe extrusion press having additional provision of a piercing press, according to this invention.
  • this example there are provided one extrusion station and four preparatory operation stations, with five containers secured to a turntable.
  • the turntable arrangement only will be described.
  • each outer container On the upper surface of a turntable 60 installed to revolve in a horizontal plane, five outer container holders 61 are radially arranged equidistantly (with an angular distance of 72 with respect to the center of revolution).
  • the opposed ends of each outer container are provided with shafts 62 each fitted in a support plate 63 vertically secured to the upper surface of the turntable 60.
  • One of each pair of shafts 62 is provided with a gear 64 secured thereto and meshing with a rack 64a driven by a hydraulic cylinder (not shown).
  • Each outer holder 61 has a container holder 65 slidably fitted therein. These container holders have containers 66a, 66b, 66c, 66d and 66e, respectively, rigidly fitted therein.
  • a fixed conveyor 69 is provided below an extension of the extrusion centerline and on the side opposite the stem.
  • a fixed conveyor 70 is provided in front of the turntable 60 so as to be positioned below said extension of the extrusion centerline.
  • a single extrusion station A, and four preparatory operation stations B, C, D and E are established around the turntable 60 correspondingly to the positions in which the respective containers are to be stopped.
  • the extrusion station A is, of course, on the extrusion centerline.
  • extrusion residue removal means 71 adapted to be driven by a cylinder mechanism 72 whose piston rod 73 has an extrusion residue removing plate 74 secured to the front end thereof.
  • the extrusion residue removing plate 74 and piston rod 73 are free to move into and away from the container 66b positioned in front of the extrusion residue removing means 71 (it being noted that such container is changed one for each extrusion).
  • a container cleaning means 75 adapted to be driven by a cylinder mechanism 76 whose piston rod 77 has a brush 78 attached thereto.
  • the brush 78 and piston rod 77 are free to move into and away from the container 660 positioned in front of the container cleaning means 75.
  • billet changing means 79 free to revolve around the axis ofa pivot shaft 80 and is adapted to hold a billet by means of a manipulator 81 provided at the front end thereof.
  • a piercing press 82 across the turntable 60.
  • the piercing press 82 is of the vertical type, comprising an upset stem 83 positioned above the container 662, a mandrel 84 extending through said upset stem, a container backup bar 85 and a backup stem 86 extending through said container backup bar 85. These members are supported by a frame 87 and vertically driven by actuation ofa hydraulic cylinder.
  • the pipe extrusion press described above has an extrusion stem 88 and a mandrel 89 extending centrally through said stem 88.
  • the turntable 60 is intermittently revolved in the same manner as in the preceding embodiment.
  • the five containers 66a-66e are intermittently moved by turns from the extrusion operation station A to the preparatory operation stations BE.
  • the predetermined operations are carried out at the respective stations A-E.
  • the extrusion stem 88 and mandrel 89 are advanced so that the billet is extrusion-shaped into the form of a pipe.
  • the extruded pipe is then guided by the fixed conveyor 69, movable conveyor 67a and fixed conveyor 70.
  • the extrusion residue is removed from the container by the advancing movement of the removing plate 74 of the extrusion residue removing means 71.
  • the inner surface of the container is cleaned by the advancing movement of the brush 78 of the container cleaning means 75.
  • the containers 66a-66e are subjected to their respective predetermined operations while they are in their horizontal positions.
  • Billet charging and piercing operations at the third and fourth operation stations D and E are carried out while the containers are held in their erected positions.
  • the hydraulic cylinder for the rack 64a is driven during the revolving movement of the turntable 60 to erect the particular container.
  • the container 66d reaches the billet charging position as at 79, this container is caused to stand erect.
  • the container backup bar is driven to bring a piercing die 90 into abutment against the lower surface of the container 66e standing erect.
  • the upper surface of the backup stem 86 is exposed to the lower surface of the container 66e to close the lower side of the container, while the upset stem 83 is lowered to downwardly press its lower surface against the upper surface of the billet contained in the container 66a, thereby upsetting the same.
  • the mandrel 84 is lowered to press the piercing tool secured to the lower end of said mandrel against the billet and the piercing tool is further lowered to make a hole in the billet.
  • an expansion tool may be used as a tool to be attached to the lower end of the mandrel 84.
  • the billet pierced in the manner mentioned above is then moved to the extrusion station A, where it is extruded into a pipe as mentioned above.
  • the press cycle can greatly be reduced as compared with the conventional series process type extrusion press. Particularly, as mentioned above, by employing a multimandrel mechanism, the benefits thereof are great.
  • the billet charging operation which is dangerous work, is carried out in a place remote from the extrusion station (heretofore, between the container and the extruding means), and that outside the turntable, this operation can be carried out in a place of large working area and without any danger, and the billet charging means can be simplified and, moreover, the stroke of the main ram and also of the piercing mandrel can greatly be reduced.
  • the extruding means exists independently at one container position and is adapted to be employed only during the extruding operation, it is not necessary for the extrusion stem to concurrently serve for removal of the extrusion residue and consequently there is no need of changing the stroke of the main ram to provide for the extruding operation on one hand and removal of the extrusion residue on the other. Further, there is no need of providing a stroke restricting plate. Further, since use is not made of the extrusion stem for removal of the extrusion residue, an increase in the stroke otherwise necessary for removal of the extrusion residue is dispensed with and the length of the main ram can be made correspondingly shorter.
  • the plurality of containers are made capable of changing in position by attaching them to the turntable, there is no need of carrying out a special operation for moving the die with the extrusion residue attached thereto away from the extrusion centerline and hence no means therefor is required.
  • the preparatory operations are carried out in a large space with good visibility, so that safety is ensured.
  • a metal extrusion press comprising a turntable, a plurality of billet containers equally spaced around and secured to said turntable and said containers having their longitudinal axes horizontally disposed on said turntable such that by intermittent rotation of said turntable, said containers are transferred successively between an extrusion station and preparatory operation stations, the axis of rotation of said turntable being perpendicular to the extrusion centerline of said extrusion station, the longitudinal axis of each of said containers extending radially through said axis of rotation of said turntable.
  • a metal extrusion press as claimed in claim 1 wherein a plurality of container holders are secured to said turntable, each of said containers being respectively held by one of said container holders in such a manner as to be longitudinally axially movable with respect thereto.
  • a metal extrusion press as claimed in claim 1 wherein said plurality of containers and a plurality of movable conveyors are secured to said turntable in such a manner as to be alternately arranged thereon.
  • a metal extrusion press as claimed in claim I further comprising a die holder mounted at said extrusion station, a die held by said die holder, an extrusion stem mounted at said extrusion station on the side of said container opposite from said die, means for cutting extruded material positioned between said die holder and said container and means positioned at said preparatory operation stations for removing extrusion residue, cleaning said containers and recharging said containers.
  • a metal extrusion press as claimed in claim I further comprising a die, a hollow extrusion stem, a mandrel adapted to pass through said stern positioned at said extrusion station; and installed at said preparatory operation stations are extrusion residue means, container cleaning means, billet charging means and billet piercing means.
  • each of said containers is adapted to rotate about a transverse axis.
  • a metal extrusion press as claimed in claim 1 further comprising a gear formed on the outer periphery of said turntable, and a drive gear positioned to engage said gear and rotate said turntable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Cleaning In General (AREA)
  • Specific Conveyance Elements (AREA)
  • Extrusion Of Metal (AREA)
  • Detergent Compositions (AREA)
US702320A 1967-02-15 1968-02-01 Metal extrusion press of turntable type Expired - Lifetime US3581545A (en)

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JP999467 1967-02-15

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US3581545A true US3581545A (en) 1971-06-01

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US (1) US3581545A (de)
AT (1) AT283852B (de)
DE (1) DE1652591B2 (de)
ES (1) ES350469A1 (de)
FR (1) FR1553549A (de)
GB (1) GB1183675A (de)
SE (1) SE341577B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781053A (en) * 1986-03-05 1988-11-01 Stewart Charles L Indirect extrusion process and machinery therefor
CN103230953A (zh) * 2013-04-23 2013-08-07 龙口市蓝牙数控装备有限公司 一种多段冷挤压成型机
CN106081250A (zh) * 2016-07-29 2016-11-09 南京来口食品有限公司 多工位转盘式填充机
ITUB20152111A1 (it) * 2015-07-13 2017-01-13 Presezzi Extrusion S P A Metodo e dispositivo per la fasatura angolare automatica di un mandrino di una pressa per estrusione
US20170291205A1 (en) * 2014-11-19 2017-10-12 Ube Machinery Corporation, Ltd. Billet transport device for extrusion press
WO2023064140A1 (en) * 2021-10-12 2023-04-20 Magna International Inc. Extrusion system
CN119839166A (zh) * 2025-03-20 2025-04-18 常州和仕达机械装备制造有限公司 一种难变形金属反挤模具装置

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Publication number Priority date Publication date Assignee Title
CN112893566B (zh) * 2021-01-15 2023-05-12 重庆恩特瑞科技有限公司 一种多活塞式凹槽挤压形成系统
CN113752734B (zh) * 2021-08-17 2024-01-12 苏州工业园区飞宇印刷有限公司 一种高性能可快速拆卸压辊的印刷机压印装置

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US896683A (en) * 1906-06-09 1908-08-18 George Hillard Benjamin Art of extruding metals.
US1258738A (en) * 1917-02-10 1918-03-12 George Hillard Benjamin Extruding-machine.
US2950815A (en) * 1957-11-22 1960-08-30 Reynolds Metals Co Extrusion conveying apparatus
US3083827A (en) * 1958-02-12 1963-04-02 Loewy Eng Co Ltd Extrusion press with multiple-station billet container unit
US3156359A (en) * 1961-07-11 1964-11-10 Loewy Eng Co Ltd Metal extrusion press with rotary container
US3240046A (en) * 1960-01-22 1966-03-15 Loewy Eng Co Ltd Metal extrusion press with multiple container system
US3256729A (en) * 1964-08-26 1966-06-21 Anaconda American Brass Co Method and apparatus for extrusion with mutiple containers
US3370449A (en) * 1964-10-02 1968-02-27 Loewy Eng Co Ltd Billet extrusion presses

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US896683A (en) * 1906-06-09 1908-08-18 George Hillard Benjamin Art of extruding metals.
US1258738A (en) * 1917-02-10 1918-03-12 George Hillard Benjamin Extruding-machine.
US2950815A (en) * 1957-11-22 1960-08-30 Reynolds Metals Co Extrusion conveying apparatus
US3083827A (en) * 1958-02-12 1963-04-02 Loewy Eng Co Ltd Extrusion press with multiple-station billet container unit
US3240046A (en) * 1960-01-22 1966-03-15 Loewy Eng Co Ltd Metal extrusion press with multiple container system
US3156359A (en) * 1961-07-11 1964-11-10 Loewy Eng Co Ltd Metal extrusion press with rotary container
US3256729A (en) * 1964-08-26 1966-06-21 Anaconda American Brass Co Method and apparatus for extrusion with mutiple containers
US3370449A (en) * 1964-10-02 1968-02-27 Loewy Eng Co Ltd Billet extrusion presses

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781053A (en) * 1986-03-05 1988-11-01 Stewart Charles L Indirect extrusion process and machinery therefor
CN103230953A (zh) * 2013-04-23 2013-08-07 龙口市蓝牙数控装备有限公司 一种多段冷挤压成型机
CN103230953B (zh) * 2013-04-23 2015-08-19 龙口市蓝牙数控装备有限公司 一种多段冷挤压成型机
US20170291205A1 (en) * 2014-11-19 2017-10-12 Ube Machinery Corporation, Ltd. Billet transport device for extrusion press
US10124382B2 (en) * 2014-11-19 2018-11-13 Ube Machinery Corporation, Ltd. Billet transport device for extrusion press
ITUB20152111A1 (it) * 2015-07-13 2017-01-13 Presezzi Extrusion S P A Metodo e dispositivo per la fasatura angolare automatica di un mandrino di una pressa per estrusione
EP3117912A1 (de) * 2015-07-13 2017-01-18 Presezzi Extrusion S.p.A. Verfahren und einrichtung zur automatische winkelsverdrehung eines dornes einer strangpresse
CN106081250A (zh) * 2016-07-29 2016-11-09 南京来口食品有限公司 多工位转盘式填充机
WO2023064140A1 (en) * 2021-10-12 2023-04-20 Magna International Inc. Extrusion system
CN119839166A (zh) * 2025-03-20 2025-04-18 常州和仕达机械装备制造有限公司 一种难变形金属反挤模具装置

Also Published As

Publication number Publication date
SE341577B (de) 1972-01-10
DE1652591A1 (de) 1971-02-11
AT283852B (de) 1970-08-25
GB1183675A (en) 1970-03-11
FR1553549A (de) 1969-01-10
DE1652591B2 (de) 1977-04-28
ES350469A1 (es) 1969-05-01

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