EP1005399A1 - Method and device for removing discards and scales from a press plate or die in metal extruding presses covered with scales - Google Patents
Method and device for removing discards and scales from a press plate or die in metal extruding presses covered with scalesInfo
- Publication number
- EP1005399A1 EP1005399A1 EP98948680A EP98948680A EP1005399A1 EP 1005399 A1 EP1005399 A1 EP 1005399A1 EP 98948680 A EP98948680 A EP 98948680A EP 98948680 A EP98948680 A EP 98948680A EP 1005399 A1 EP1005399 A1 EP 1005399A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell
- die
- press
- disk
- plate
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 6
- 239000002184 metal Substances 0.000 title claims description 5
- 229910052751 metal Inorganic materials 0.000 title claims description 5
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000011257 shell material Substances 0.000 description 51
- 239000012634 fragment Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/04—Cutting-off or removing waste
Definitions
- the pressure plate or die is completely or partially surrounded at the end of the pressing operation by a residue remaining on the end face of the pressure plate or die and a shell connected to the pressure residue, depending on the working method and the type of tool used, whereby the shell collects in an annular chamber on the outer edge of the pressure plate or die or, when the shell emerges, in a special operation on the end face of the pressure plate or die opposite the remainder of the press behind it.
- the press rest and the shell must be removed.
- the remainder of the press residue and, if appropriate, the shell that is jammed behind the press disk or die are removed by a knife guided along the end face of the press disk or die occupied by the press residue and, if appropriate, a second knife guided along the opposite end face that is occupied by the jammed shell.
- the first knife together with the second knife or a guide plate, forms a frame in which the knives or the knife and the guide plate are spaced apart according to the axial dimension of the press disk or the die, through which the press disk or die is parallel to their end faces is moved through, in which case the residues covering the end faces (pressing residue and upset shell) or the pressing residue covering one end face are then sheared off.
- the shell section surrounding the outer circumference of the press disk or die or the shell which is upset in the annular chamber is slit once or twice by a notch knife arranged laterally in the frame of the residual press separator or by two notch knives, so that the bowl jams at the notch knife and from the press disk or die is pressed (DE-AS 25 06 447, DE-OS 26 13 241).
- a notch knife arranged laterally in the frame of the residual press separator or by two notch knives, so that the bowl jams at the notch knife and from the press disk or die is pressed
- EP 0 224 115 A2 notched knives attached to the handlebars that scrape along the circumference when the press disk or die is advanced and detach the shell.
- the object of the invention is to achieve the detachment of the shell from the pressure plate or die with even greater certainty.
- This object is achieved by radially widening the shell to be removed by means of roller pressure while rotating the press disk or die, which has been freed of residues (pressed residue, swollen shell) on its end faces, and rotating the radially adjustable roller or rollers and subsequently stripping the sufficiently widened shell.
- a device for carrying out the method according to the invention are a frame holding two knives or a knife and a guide plate at a distance from the axial dimension of the press disk or die and a slide which moves this press disk or die parallel to its end faces along the knife or knives existing press remover according to a further feature of the invention, a with a central, rotatable receptacle for a press plate or die and at least one radially adjustable roll against the press plate or die driven expanding roller for releasing the shell from the press plate or die and means for separating and separate deployment of the pressure plate or die and the shell downstream.
- An advantageous design of the expanding mill provides three adjustable rolls. It is also advantageous that the receptacle for a press disk or die and the roller or rollers are arranged in a horizontal plane with vertically located axes of rotation.
- FIG. 1 shows an embodiment of the invention, wherein in Fig. 1 in a side view and in
- Fig. 2 is a top view of the device in its entirety.
- Fig. 3 shows a detail of the side view in a section along the line III-III in Fig. 2 and the
- Fig. 4 shows a section of the supervision in a section along the section line IV-IV entered in Figure 3.
- Fig. 6 show details.
- the device for removing the press residue and shell from a press disk or die such as is obtained in metal extrusion with a shell, consists essentially of two parts, namely a shear part 1, in which the press residue occupying the one end face of the press disk or die and, if appropriate the upset shell covering the other end face is sheared off, and a stripping part 2 in which the shell sheathing the press disk or die is removed.
- the shear part 1 is designed in a manner known, for example, from DE-OS 25 05 160 or EP 0 224 115 B1 and consists of a receiving table 3 on which the extruders, which are conveyed by a suitable transport system, are contaminated with the pressing residue and the shell Press disks or dies 4 are placed.
- a slide 6 On the side of the receiving table 3 is a slide 6 movable by a piston-cylinder unit 5 on one side and a frame 7 for a coaxially on the other side lower knife 8 and an upper knife 9 are provided.
- the slide 6 By appropriately loading the piston-cylinder unit 5, the slide 6 is moved towards and through the frame 7, pushing the press disk or die 4 afflicted with the press residue and the shell in front of it until it reaches the system axis of the Stripping part 2 (position 4 ') arrives.
- the lower knife 8 shears the remainder of the press and - insofar as the press disk or die 4 is coated on the opposite end face with an upset shell -
- the upper knife 9 shears the upset shell from the front side or the end faces of the pressure plate or die 4, so that it is only encased on its circumference by the shell, which is then removed in the stripping part 2.
- the remaining on the receiving table 5 pressing and possibly shell remainder comes into a Schott bucket 10, for which purpose the pivoting mounting table 3 is pivoted downwards by means of a piston-cylinder unit 11.
- the stripping part 2 designed according to the invention as an expanding mill, is provided in the exemplary embodiment with three rollers 12 which are rotatably mounted in chocks 13 and can be moved radially with them from piston-cylinder units 14 to the system axis. At least one of the rollers 12 is driven, in the exemplary embodiment two are driven by a hydraulic motor 27.
- the rolling stand 15 guiding the rollers 12 with their chocks 13 is composed of an upper plate 16 and a lower plate 17 and roller guides 18, disk guides 19 and chamber walls 20 arranged as spacers and arranged between them.
- a support plate 21 Retractable from below in the system axis is a support plate 21 with a rotatably inserted plate, not shown.
- a piston-cylinder unit 22 is provided, which is surrounded for protection by a jacket tube 23, which is connected to the support plate 21 and telescopically encloses an inner support tube 24.
- the support plate 21 is provided with lateral flats, so that they are lowered by a fork-shaped scraper plate 25 can, whereby a press disk or die 4 'freed from the shell is stripped off when it is lowered and reaches a channel 26 for return transport to the extrusion press.
- Pistons guided in cylinders 28 are arranged as rams in the center of the angle between the rollers 12, each carrying a clearing plate 30, the contour of which is essentially determined by the press disk or die and two adjacent rollers 12.
- Each clearing plate 30 is provided with two guide pins 31 which are guided in bores 32 of the top plate 16 and the fastening flanges 33 of the cylinders 28.
- FIG. 5 shows the top plate 16 and in FIG. 6 the bottom plate 17. While omitting the screw holes for connecting the roller guides 18, the disk end guides 19 and the chamber walls 20 to the top plate 16 and the bottom plate 17, FIG. 5 shows the top plate 16 with the central opening 37 through which the press disk or die is observed from above, or how can be applied in a modified version upwards. Furthermore, the bores 38 for the passage of the plungers 29 and the bores 32 for the reception of the guide pins 31 and elongated holes 39 for the motors 27 penetrating the top plate 16 are shown. FIG. 6 shows the lower plate 17 with its star-shaped opening 40, which combines a central opening for the passage of the support plate 21 with the press disk or die 4, the openings 34 and the opening 35 for the removal of the shell scrap.
- the pressure plate arrives when the slide 6 is advanced or die in a position 4 'in the system axis of the stripper part 2.
- the two rollers 12 are extended to the side of the path of the press disk or die 4 to a distance of at least the diameter of the press disk or die 4 with shell.
- the disk guides 19 serve for lateral guidance and for supporting the press disk or die 4 are strips 33 on the disk guides 19, and on the last path section the support plate 21 located in its upper position.
- the three rollers 12 are placed concentrically, pressed against the pressure plate or die 4 and set in rotation.
- This rolling process exerted on the shell leads to an expansion of the shell, which between the rolling zones leads to a loop formation of the shell parts and to their detachment from the circumference of the press disk or mathze.
- the continuous rolling and alternating bending stress on the shell usually leads to the shell breaking soon, and the fragments fall through one of the openings 34 below the chambers enclosed by the chamber walls 20 or through the opening 35 between the guide strips 33 into a scrap bucket 36.
- the shell is not broken up into pieces, the widened shell is stripped by the broaching plates 30 moved by the plungers 29, the edges of which move between the rollers 12 along the peripheral sections of the press disk or die 4, thereby dividing the shell.
- the press disk or die 4 ′ freed from the rest of the shell and shell is fed back to the extrusion press by lowering the support plate 21.
- the press disk and mat ze 4 freed from the press residue and shell can be lowered by means of the support plate 21 for return transport, this can also be raised with a corresponding design of the support device and conveyed from above the stripping part 2 to the extrusion press, which has the advantage that the scrap disposal and the removal of the press disks or dies are clearly separated.
- the breakage of the shell widened by the rolling process can further be supported in that the rollers are provided with cutting edges through the the shell is notched transversely to the rolling direction, which presupposes a defined end position of the rollers in order to prevent damage (notching) to the press disks or dies.
- the collar diameter including the cutting edge height should not exceed the basic diameter of the roller more than the depth of the annular chamber, so that the cutting edge does not yet reach the annular chamber base when the roller comes into contact with the press disk or die.
- the cutting edge height should be less than the shell thickness so that an expansion of the shell by its rolling is achieved to a sufficient extent.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Processing Of Solid Wastes (AREA)
- Forging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19736505A DE19736505A1 (en) | 1997-08-22 | 1997-08-22 | Removing press residue and shell from press disk or metal extrusion die with shell |
DE19736505 | 1997-08-22 | ||
PCT/DE1998/002129 WO1999010114A1 (en) | 1997-08-22 | 1998-07-28 | Method and device for removing discards and scales from a press plate or die in metal extruding presses covered with scales |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1005399A1 true EP1005399A1 (en) | 2000-06-07 |
EP1005399B1 EP1005399B1 (en) | 2002-02-13 |
Family
ID=7839797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98948680A Expired - Lifetime EP1005399B1 (en) | 1997-08-22 | 1998-07-28 | Method and device for removing discards and scales from a press plate or die in metal extruding presses covered with scales |
Country Status (8)
Country | Link |
---|---|
US (1) | US6305207B1 (en) |
EP (1) | EP1005399B1 (en) |
JP (1) | JP3311739B2 (en) |
KR (1) | KR20010023104A (en) |
AT (1) | ATE213181T1 (en) |
DE (2) | DE19736505A1 (en) |
ES (1) | ES2172922T3 (en) |
WO (1) | WO1999010114A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070199127A1 (en) * | 2006-02-24 | 2007-08-30 | Lucy Coronado | Garment for Dialysis Patients |
CN101489698B (en) * | 2006-07-20 | 2010-11-10 | 宇部兴产机械株式会社 | Discard transfer apparatus |
KR101038438B1 (en) * | 2009-03-23 | 2011-06-01 | 케이에스베일러주식회사 | Coil scrap cutting device |
CN102133585B (en) * | 2011-03-30 | 2012-08-08 | 太原重工股份有限公司 | Excessive pressure collecting device for aluminum extruder |
CN102423773B (en) * | 2011-12-23 | 2014-03-12 | 太原重工股份有限公司 | Discard receiving device |
CN105195546B (en) * | 2015-10-10 | 2017-04-05 | 南南铝业股份有限公司 | Aluminium alloy extrusion mould aluminium scrap automatic clearing apparatus |
CN116422724B (en) * | 2023-06-14 | 2023-08-18 | 广东省亿豪铝业科技有限公司 | Aluminum profile forming device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1452462C3 (en) * | 1964-12-01 | 1975-05-22 | Schloemann-Siemag Ag, 4000 Duesseldorf | Equipment on a horizontal metal extrusion press for removing and separating the pressed residue package |
DE2505160A1 (en) * | 1975-02-07 | 1976-08-19 | Diehl Fa | DEVICE FOR REMOVING THE FRONT SIDE PRESS REMAINS ON EXTRUSION DISCS |
FR2300633A1 (en) * | 1975-02-15 | 1976-09-10 | Diehl | DEVICE FOR DETACHING THE SPINNING CRUST FROM A COMBINED SPINNING PUNCH |
DE2613241C3 (en) | 1976-03-27 | 1979-03-22 | Diehl Gmbh & Co, 8500 Nuernberg | Device for removing the press shell from a press disk for strand |
JPS5953125B2 (en) * | 1979-03-28 | 1984-12-24 | 株式会社神戸製鋼所 | Discard and dummy block processing equipment in horizontal extrusion press |
JPS571517A (en) * | 1980-06-04 | 1982-01-06 | Kobe Steel Ltd | Method and apparatus for removing shell from loosed die of indirect extrusion press |
DE3542237A1 (en) | 1985-11-29 | 1987-06-04 | Hasenclever Maschf Sms | DEVICE FOR SEPARATING A PRESSING DISC FROM THE PRESS REMAINING IN THE EXTRACTION OF METAL WITH SHELL |
DE3614478A1 (en) * | 1986-04-29 | 1987-11-05 | Hasenclever Maschf Sms | TRANSPORT SYSTEM FOR THE CIRCUIT OF PRESSING DISKS AND MATRICES ON EXTRESS PRESSES SET UP FOR DIRECT AND INDIRECT PRESSES |
-
1997
- 1997-08-22 DE DE19736505A patent/DE19736505A1/en not_active Withdrawn
-
1998
- 1998-07-28 US US09/486,274 patent/US6305207B1/en not_active Expired - Fee Related
- 1998-07-28 DE DE59803080T patent/DE59803080D1/en not_active Expired - Fee Related
- 1998-07-28 AT AT98948680T patent/ATE213181T1/en not_active IP Right Cessation
- 1998-07-28 WO PCT/DE1998/002129 patent/WO1999010114A1/en active IP Right Grant
- 1998-07-28 ES ES98948680T patent/ES2172922T3/en not_active Expired - Lifetime
- 1998-07-28 KR KR1020007001726A patent/KR20010023104A/en active IP Right Grant
- 1998-07-28 JP JP2000507488A patent/JP3311739B2/en not_active Expired - Fee Related
- 1998-07-28 EP EP98948680A patent/EP1005399B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9910114A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999010114A1 (en) | 1999-03-04 |
DE59803080D1 (en) | 2002-03-21 |
ES2172922T3 (en) | 2002-10-01 |
EP1005399B1 (en) | 2002-02-13 |
DE19736505A1 (en) | 1999-02-25 |
ATE213181T1 (en) | 2002-02-15 |
KR20010023104A (en) | 2001-03-26 |
US6305207B1 (en) | 2001-10-23 |
JP3311739B2 (en) | 2002-08-05 |
JP2001513447A (en) | 2001-09-04 |
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