WO1991005640A1 - Ausbrechvorrichtung - Google Patents
Ausbrechvorrichtung Download PDFInfo
- Publication number
- WO1991005640A1 WO1991005640A1 PCT/EP1990/001711 EP9001711W WO9105640A1 WO 1991005640 A1 WO1991005640 A1 WO 1991005640A1 EP 9001711 W EP9001711 W EP 9001711W WO 9105640 A1 WO9105640 A1 WO 9105640A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compressed air
- punching
- cylinder
- punch
- cutting edges
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
Definitions
- the invention relates to a stripping device for removing abtanzabf ll when punching material such as cardboard or the like. With a punching tool with cutting edges mounted on a base.
- the object of the invention is to improve the known stripping device in such a way that the stripping tool is arranged on the punching cylinder.
- the device of the type mentioned at the outset serves to solve this problem, characterized in that the base has at least one compressed air connection which can be closed by a valve, which opens within the closed cutting edges of the punching tool and to which at least one compressible hollow body can be connected which is • pushed apart by the compressed air.
- a flat punching plate can also be used instead of a punching cylinder.
- FIG. 1 shows a schematic end view of a first exemplary embodiment
- Figure 2 shows a longitudinal section through Figure 1;
- Figure 3 is a perspective view of a tool recognizable in Figures 1 and 2;
- Figure 4 is a schematic view of a second embodiment.
- Figure 1 shows a perspective view of a punch cylinder 4 of a not shown, known punch for cardboard or the like, which usually cooperates with a counter punch cylinder, not shown.
- the material to be punched runs between the punch cylinder 4 and the counter-punch cylinder 40 (FIG. 4), which is thus aligned in the vertical direction, and is punched by a punch 2 mounted on the punch cylinder 4 in accordance with the outline of the cutting edges 3 of the punch 2.
- the punch 2 shown in perspective in FIG. 3 is a half shell made of wood in the embodiment shown, which usually has a thickness of about 12 to 14 mm.
- Punching knives 1 are driven into the wood of the half-shell, which forms a carrier 5, in such a way that their cutting edges 3 protrude radially outwards.
- the protrusion of the cutting edges 3 over the wood of the carrier 5 is approximately 10 mm.
- the schematic longitudinal section through the punching cylinder 4 shown in FIG. 2 shows that it is provided with an axial compressed air connection 8, to which radial compressed air lines 12 connect in its interior.
- the compressed air lines 12 end in the outer wall of the punch cylinder 4 and can be closed by valves 6 in the region of their mouths 16.
- the valves 6 are simple ball valves known per se. It is clear that instead of ball valves, any other suitable type of valve, for example flap or poppet valves, can be used.
- Only the opening direction of the valves is essential 6, which must be set up so that the compressed air flowing in through the compressed air connection 8, for example 3 to 6 bar, preferably 3 to 4 bar, normally closes each of the valves 6.
- the valves 6 must therefore be opened from the outside against the action of the compressed air in relation to the inside of the punching cylinder 4, ie by means of a radially inward force on the punching cylinder 4.
- the stamping tool 2 can also be seen in FIG. 2, which extends over the mouths 16 of the two middle compressed air lines 12.
- the punch 2 not only carries the aforementioned knife 1, which is not shown in FIG. 2 for reasons of clarity, but also flexible hollow bodies 10, for example hoses or bellows, are provided therein, each of which via a connecting channel 18 to one of the compressed air lines 12 are connected.
- the carrier 5 of the punch 2 has extensions, projections or similar devices in the region of the connecting channels 18, which open the valves 6 underneath them, that is to say, in the exemplary embodiment shown, lift the balls of the ball valves from their valve seats by moving them radially towards them press inside. This results in a compressed air connection from the compressed air connection 8 via the compressed air line 12 and the connecting duct 18 to the interior of a flexible hollow body 10.
- Each flexible hollow body or bellows 10 is mounted in a recess in the punching tool carrier 5 at a predetermined location, for example at the locations recognizable in FIG. 3.
- the bellows 10 is expediently a height-compressible, hollow plastic body with elastic side walls, which has only one opening to which the connection channel 18 is connected.
- the interior of the flexible hollow body or bellows 10 is pressurized with compressed air, for example at 3 to 6 bar, preferably 4 to 5 bar.
- the compressed air pushes the bellows 10 apart so that it is radial over the Carrier 5 of the punch 2 protrudes so far that it protrudes beyond the cutting edges 3, as can be seen in Figure 1.
- bellows 10 can be connected by lines 20, which are laid in grooves or depressions in the punching tool 2.
- the bellows 10 When punching cardboard or similar material, the bellows 10 is compressed by the punching material supported by the counter-punching cylinder 40. However, as soon as the punched-out material loses the support of the counter-punching cylinder 40, i.e. if the punching cylinder 1 has rotated further in such a way that one or more bellows 10 are no longer supported by the counter-punching cylinder 40, the compressed air becomes the flexible hollow body or bellows 10 again push radially apart and thereby expel the punching waste from the knife 1, as is intended with the stripping device according to the invention.
- flexible hoses can also be used instead of bellows; they are usually easier to install than bellows.
- other flexible hollow bodies should also be covered by the invention, for example balls, cylinders or similar structures.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3934077.5 | 1989-10-12 | ||
DE3934077 | 1989-10-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991005640A1 true WO1991005640A1 (de) | 1991-05-02 |
Family
ID=6391324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1990/001711 WO1991005640A1 (de) | 1989-10-12 | 1990-10-11 | Ausbrechvorrichtung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0495839A1 (de) |
WO (1) | WO1991005640A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0638398A1 (de) * | 1993-08-04 | 1995-02-15 | Richard Gardiner | Pneumatisch betätigter Auswerfer |
WO2004101237A1 (de) * | 2003-05-14 | 2004-11-25 | Windmöller & Hölscher Kg | Schneid-und transportwalze in einer wickelvorrichtung zum aufwickeln von materialbahnen |
CN103878818A (zh) * | 2014-04-14 | 2014-06-25 | 张家港润盛科技材料有限公司 | 一种用于塑料薄膜切膜的气涨辊轴机构 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3606824A (en) * | 1969-05-02 | 1971-09-21 | Thomson National Press Co | Press and conveyor with self-stripping die |
GB1442308A (en) * | 1972-10-11 | 1976-07-14 | Beasley French & Co Ltd | Web or blank cutting apparatus |
-
1990
- 1990-10-11 WO PCT/EP1990/001711 patent/WO1991005640A1/de not_active Application Discontinuation
- 1990-10-11 EP EP19900915111 patent/EP0495839A1/de not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3606824A (en) * | 1969-05-02 | 1971-09-21 | Thomson National Press Co | Press and conveyor with self-stripping die |
GB1442308A (en) * | 1972-10-11 | 1976-07-14 | Beasley French & Co Ltd | Web or blank cutting apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0638398A1 (de) * | 1993-08-04 | 1995-02-15 | Richard Gardiner | Pneumatisch betätigter Auswerfer |
US5546839A (en) * | 1993-08-04 | 1996-08-20 | Gardiner; Richard | Pneumatic ejector |
WO2004101237A1 (de) * | 2003-05-14 | 2004-11-25 | Windmöller & Hölscher Kg | Schneid-und transportwalze in einer wickelvorrichtung zum aufwickeln von materialbahnen |
US7967176B2 (en) | 2003-05-14 | 2011-06-28 | Windmoeller & Hoelscher Kg | Cutting and transport cylinder in a winding device for winding material webs |
CN103878818A (zh) * | 2014-04-14 | 2014-06-25 | 张家港润盛科技材料有限公司 | 一种用于塑料薄膜切膜的气涨辊轴机构 |
Also Published As
Publication number | Publication date |
---|---|
EP0495839A1 (de) | 1992-07-29 |
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