US3844151A - Extrusion press with die changer - Google Patents

Extrusion press with die changer Download PDF

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Publication number
US3844151A
US3844151A US00397854A US39785473A US3844151A US 3844151 A US3844151 A US 3844151A US 00397854 A US00397854 A US 00397854A US 39785473 A US39785473 A US 39785473A US 3844151 A US3844151 A US 3844151A
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US
United States
Prior art keywords
slide
die holder
platen
holder
extrusion press
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
US00397854A
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English (en)
Inventor
H Huertgen
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.)
Sutton Engineering Co
Original Assignee
Sutton Engineering 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 Sutton Engineering Co filed Critical Sutton Engineering Co
Priority to US00397854A priority Critical patent/US3844151A/en
Priority to CA206,025A priority patent/CA1002481A/en
Priority to GB3595074A priority patent/GB1416130A/en
Priority to DE2440534A priority patent/DE2440534C3/de
Priority to IT27013/74A priority patent/IT1021139B/it
Priority to JP49105121A priority patent/JPS529590B2/ja
Application granted granted Critical
Publication of US3844151A publication Critical patent/US3844151A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
    • B21C23/212—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
    • B21C23/212—Details
    • B21C23/214—Devices for changing die or container

Definitions

  • An extrusion press platen has a vertical rear face from which a passage extends forward through the platen.
  • References Cited push the die holder laterally into a predetermined po- UNITED STATES PATENTS sition at one side of the platen passage, whereupon a 3 478 561 11/1969 Samuel 72/263 driven Chain attached to the he Causes the Slide 316301065 12/1971 M005 72/263 P the holder from that Peemen to a Second P tion out beyond the adjacent side of the platen, where means are provided for receiving the die holder.
  • PATENTEIJ um 29 1974 k wnw EXTRUSION PRESS WITH DIE CHANGER Extrusion press dies are often mounted in die holders that can be moved laterally out of operating position so that the dies can be changed when necessary.
  • Various ways of moving the die holders into and out of position have been proposed, including fluid pressure cylinders provided with pistons connected by piston rods with the die holders to push the holders out to one side of the press and to return them to operating position. It is very desirable to use pistons and cylinders for this purpose because it may be necessary for the die holder assembly to shear off the extrusion as the holder is moved laterally, and a fluid pressure cylinder can provide enough force for this purpose.
  • Another object is to provide means at the side of the press for receiving from the press a die holder and then quickly shifting it into another position while simultaneously moving a similar die holder into position for insertion in the press.
  • FIG. I is a vertical cross section through an extrusion press looking forward toward the extrusion die
  • FIG. 2 is an enlarged view taken from the left-hand side of FIG. 1;
  • FIG. 3 is a further enlarged fragmentary vertical section taken on the line III--III of FIG. 2;
  • FIG. 4 is a plan view of FIG. I partly in section
  • FIG. 5 is an enlarged section taken on the line VV of FIG. 4;
  • FIG. 6 is a further enlarged side view taken on the line Vl-Vl of FIG. I.
  • FIG. 7 is a fragmentary vertical section taken on the line VlIVII of FIG. 1.
  • the extrusion press has heavy front and rear upright platens, only the front platen 1 being shown.
  • the two platens are connected by four heavy tie rods 2 that take the thrust of the extruding operation;
  • the extrusion die Spaced behind the front
  • the extrusion die is removably mounted in a recess in a block that forms a die holder 7, which also contains backup rings 8 and 9 that engage a pressure ring 10 mounted in the enlarged rear end of the passage through the platen.
  • the die isheld in place by a U-shape clamping plate 11 bolted to the die holder.
  • the die holder is supported by horizontal track plates 12 and I3 supported by a bracket 14 secured to the platen below the holder. These plates are provided with aligned longitudinal ribs 16 and I7 that form a guideway between them and the platen into which a rib 18 on the bottom of the die holder fits as shown in FIGS. 6 and 7.
  • the top of the die holder is provided with a similar rib 19 that extends up into a guideway formed between the platen and a rib 20 along the bottom of a guide bar bolted to the rear face of the platen. The ribs and guideways hold the die holder against the face of the platen and yet permit the holder to be moved back and forth across the platen.
  • means are mounted at one side of the die holder for moving it laterally a relatively short distance, such means including a longitudinally movable rigid elongated member that projects only a short distance from the side of the press to avoid being an objectionable obstruction.
  • this member could be a rack bar moved by gears supported by the platen, it is preferred that it be composed of a piston rod 22 and piston 23 mounted in a horizontal fluid pressure cylinder 24 bolted to the face of the platen. The inner end of the cylinder is spaced from the die holder. Between the cylinder and the die holder and engaging the latter there is aslide 25 that preferably extends outwardly beneath the cylinder as shown in FIG. I.
  • the bottom of this slide straddles rib I6 on track plate 12.
  • the piston rod extends out of the inner end of the cylinder for pushing the die holder across passage 5 extending through the platen.
  • the piston rod does not engage the adjacent side of the die holder directly, but bears against an intermediate upwardly extending part of the slide that is provided with a guideway 26 in its top for receiving the rib 20 on the upper guide bar as shown in FIG. 2.
  • the top of the slide preferably extends outwardly over the cylinder.
  • Rigidly mounted in the side of the slide engaging the die holder is a horizontal key 27 shown in FIG. 1 that fits in a slot extending from front to back of the die holder.
  • the upper and lower walls of this slot are provided with grooves with which the key interlocks.
  • the stroke of the piston is just great enough for it to cause the slide to push the die holder laterally far enough to shear off an extrusion die holder and into the platen passage.
  • the entire die holder does not need to be platen is a billet container 3 indicated in broken lines moved across the passage in order to do this.
  • Another feature of this invention is that when the die holder has reached the predetermined position just mentioned, indicated in dotted lines in FIG. I, it is moved the rest of the way across the platen and out to one side of it by a chain attached to the slide.
  • the chain pulls the slide away from the extended piston rod and thereby causes the slide to push the die holder out to its outermost or die-changing position beside the press.
  • the chain preferably is an endless chain 30 extending around a pair of sprockets.
  • One sprocket 31 is located below the outer end of cylinder 24, and the other sprocket 32 is rotatably supported by track bracket 14 near the opposite side of the platen.
  • the upper length of the chain extends along the top of the track plates.
  • the chain does not extend outwardly from the side of the platen any further than the cylinder. As shown in FIGS. 1 and 3, the ends of the chain are fastened to the opposite ends of a block 33 disposed in a recess 34 in the bottom of the outer end'of' the slide, where the block is held by vertical screws 35.
  • the outer sprocket 31 is mounted on the shaft 36 of a reversible motor 37, preferably a hydraulic motor supported by a bracket 38 bolted to the adjusting side of the platen.
  • the driven chain starts to pull the slide in the same direction and thereby causes the slide to continue to push the die holder laterally until a stop block 40 bolted to the side of the slide engages an adjustable stop 41 mounted in a bracket 42 secured to that side of the platen.
  • a stop block 40 bolted to the side of the slide engages an adjustable stop 41 mounted in a bracket 42 secured to that side of the platen.
  • These stops arrest the movement of the slide after it has pushed the die holder onto a die-changing table 43 mounted on a support 44 projecting from the side of the platen.
  • the table and its support extend lengthwise of the press; that is, parallel to passage through the platen.
  • the table is long enough to support two die holders, one in front of or behind the other as shown in H0. 5.
  • the top of the table is formed from a pair of longitudinally spaced guide plates 45 and 46, each of which is provided with a pair of spaced transverse rib 47 for receiving between them the bottom rib of a die holder as it is pushed off the track plates and onto the table.
  • the table can be moved forward and backward on its support far enough to align either guide plate with the track plates. This movement is accomplished by a fluid pressure cylinder 48 mounted on the bottom of support 44 beneath hte table and provided with a piston rod 49, the projecting end of which is secured to a bracket 50 extending down from one end of the table.
  • the die changing system disclosed herein is quick and simple to operate, in addition to which it has the big advantage that it does not require a fluid pressure cylinder or the like to project an objectionable distance from one side of the front platen.
  • a platen having a vertical face and an extrusion-receiving passage perpendicular to said face, an extrusion die holder slidable horizontally along said face and normally located in line with said passage, a longitudinally movable rigid elongated member disposed at one side of said holder and extending laterally away from it, a slide engaging said side of the die holder, means for moving said member lengthwise to push said holder laterally into a predetermined position at one side of said platen passage, a chain attached to said slide and extending across said platen, means for driving the chain to cause the slide to push said holder from said predetermined position to a sec- 0nd position out beyond the adjacent side of said platen, and means at said side of the platen for receiving said die holder in said second position.
  • said receiving means including a table for supporting the die holder, the table extending parallel to said platen passage and being long enough to also support a similar die holder, means for moving the table parallel to said passage to move the first-mentioned die holder away from said slide and simultaneously move another die holder into line with the slide, and means for connecting the slide to a die holder on said table for pulling itback into line with said passage.
  • said table-moving means including a stationary fluid pressure cylinder, and a piston rod projecting from the cylinder and connected with said table.
  • a key extending across the end of said slide adjoining the die holder, said holder having a slot extending from front to back receiving said key to connect the holder to the slide, and said receiving means including means for moving the die holder parallel to said platen passage to slide the holder off said key to thereby disconnect the holder from said slide.
  • said chain being an endless chain supported by sprockets
  • said chain-driving means being a reversible motor connected to one of said sprockets for turning it.
  • said slide having a portion interposed between said elonelongated member being a piston rod, and said member-moving means being a stationary fluid pressure cylinder containing said rod and a piston secured to it, said slide extending between said piston rod and die holder and also extending out along the top and bottom of said cylinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Press Drives And Press Lines (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
US00397854A 1973-09-17 1973-09-17 Extrusion press with die changer Expired - Lifetime US3844151A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00397854A US3844151A (en) 1973-09-17 1973-09-17 Extrusion press with die changer
CA206,025A CA1002481A (en) 1973-09-17 1974-07-31 Extrusion press with die changer
GB3595074A GB1416130A (en) 1973-09-17 1974-08-15 Extrusion press with die changer
DE2440534A DE2440534C3 (de) 1973-09-17 1974-08-23 Strangpresse mit einer Matrizenwechseleinrichtung
IT27013/74A IT1021139B (it) 1973-09-17 1974-09-06 Pressa ad estrusione con disposi tivo per la sostituzione delle ma trici
JP49105121A JPS529590B2 (it) 1973-09-17 1974-09-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00397854A US3844151A (en) 1973-09-17 1973-09-17 Extrusion press with die changer

Publications (1)

Publication Number Publication Date
US3844151A true US3844151A (en) 1974-10-29

Family

ID=23572939

Family Applications (1)

Application Number Title Priority Date Filing Date
US00397854A Expired - Lifetime US3844151A (en) 1973-09-17 1973-09-17 Extrusion press with die changer

Country Status (6)

Country Link
US (1) US3844151A (it)
JP (1) JPS529590B2 (it)
CA (1) CA1002481A (it)
DE (1) DE2440534C3 (it)
GB (1) GB1416130A (it)
IT (1) IT1021139B (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340147A1 (fr) * 1976-02-09 1977-09-02 Sutton Eng Co Presse a extruder pour extrusion directe ou indirecte, comportant un organe de deplacement de sa filiere
FR2477440A1 (fr) * 1980-03-05 1981-09-11 Usm Corp Presse a filer equipee d'un mecanisme echangeur de filieres et son procede de mise en oeuvre
US4402208A (en) * 1981-04-13 1983-09-06 Sutton Enigneering Company Indirect extrusion press with die changer
US4416138A (en) * 1980-03-05 1983-11-22 Usm Corporation Extrusion press die change assembly
US4710120A (en) * 1985-12-17 1987-12-01 Revere Copper And Brass Incorporated Apparatus for removing a die from a die ring

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478561A (en) * 1965-10-27 1969-11-18 Davy & United Eng Co Ltd Extrusion
US3630065A (en) * 1969-08-28 1971-12-28 Gulf & Western Ind Prod Co Die changing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478561A (en) * 1965-10-27 1969-11-18 Davy & United Eng Co Ltd Extrusion
US3630065A (en) * 1969-08-28 1971-12-28 Gulf & Western Ind Prod Co Die changing apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340147A1 (fr) * 1976-02-09 1977-09-02 Sutton Eng Co Presse a extruder pour extrusion directe ou indirecte, comportant un organe de deplacement de sa filiere
US4103529A (en) * 1976-02-09 1978-08-01 Sutton Engineering Company Extrusion press for direct and indirect extruding with die shifter
FR2477440A1 (fr) * 1980-03-05 1981-09-11 Usm Corp Presse a filer equipee d'un mecanisme echangeur de filieres et son procede de mise en oeuvre
US4416138A (en) * 1980-03-05 1983-11-22 Usm Corporation Extrusion press die change assembly
US4402208A (en) * 1981-04-13 1983-09-06 Sutton Enigneering Company Indirect extrusion press with die changer
US4710120A (en) * 1985-12-17 1987-12-01 Revere Copper And Brass Incorporated Apparatus for removing a die from a die ring

Also Published As

Publication number Publication date
IT1021139B (it) 1978-01-30
GB1416130A (en) 1975-12-03
CA1002481A (en) 1976-12-28
JPS5056358A (it) 1975-05-17
JPS529590B2 (it) 1977-03-17
DE2440534B2 (de) 1979-08-30
DE2440534C3 (de) 1980-05-14
DE2440534A1 (de) 1975-03-27

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