WO1997007950A1 - Verfahren zum zerschneiden eines bandes aus plastisch verformbarem material in einzelne formstücke - Google Patents
Verfahren zum zerschneiden eines bandes aus plastisch verformbarem material in einzelne formstücke Download PDFInfo
- Publication number
- WO1997007950A1 WO1997007950A1 PCT/DE1996/001307 DE9601307W WO9707950A1 WO 1997007950 A1 WO1997007950 A1 WO 1997007950A1 DE 9601307 W DE9601307 W DE 9601307W WO 9707950 A1 WO9707950 A1 WO 9707950A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cut
- shaped piece
- cutting
- side edge
- station
- Prior art date
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007493 shaping process Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009966 trimming Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
- B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
- B28B5/028—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of definite length, e.g. succession of moving pallets, and being continuously fed
-
- 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
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
-
- 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
- B26D7/27—Means for performing other operations combined with cutting
-
- 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
- B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/12—Apparatus or processes for treating or working the shaped or preshaped articles for removing parts of the articles by cutting
- B28B11/125—Cutting-off protruding ridges, also profiled cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
- B28B11/16—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for extrusion or for materials supplied in long webs
- B28B11/163—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for extrusion or for materials supplied in long webs in which the cutting device is moved longitudinally with the moving strand
-
- 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
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
Definitions
- the invention relates to a method for cutting a continuously abutting on one strand subtypes transported tape of plastically deformable material into individual shaped pieces cut off in which in a cutting station, a first mold piece by a head-end at its edge, taking place first cut from the tape and in a molding station foot-side edge of the first molding is formed.
- the fresh concrete is to be compacted when shaping the foot-side edge and molded into the rounding or bevel, as a result of which bumpy upsets can arise on the upper side of the shaped piece. Since the compactibility of the fresh concrete is variable, the tape is not always cut completely when the shaped piece is cut or the shaped piece is cut when cutting its edge on the foot side, so that a burr can be formed on the head and foot edge of the piece. In this case, the rounding or beveling can only be formed incompletely when trimming the edge on the foot side.
- the object is achieved in that the first cut is made obliquely to the vertical transverse plane of the belt, with an oblique material overhang on the head-side edge of the first shaped piece and an oblique cut on the belt which forms the foot-side edge of a subsequent second
- the oblique cut is preferably made at an angle of 2 ° to 6 ° to the vertical transverse plane.
- the material overhang present at the head-side edge of the first shaped piece becomes removed, and a rounding or bevel is formed on the foot-side edge of the second shaped piece, so that there is always a distance between the adjacent edges of the shaped pieces, which prevents the shaped pieces from sticking together during the subsequent curing, even if the lower molds abut one another. Trimming the foot-side edge of the second shaped piece is therefore not necessary, so that no cut burr is formed when the foot-side edge of the second shaped piece is formed, and the rounding or beveling is always completely formed.
- the amount of fresh concrete to be compacted when shaping the foot-side edge of the second shaped piece and to be shaped into the rounding or bevel is substantially smaller, so that no upsetting can occur on the surface of the shaped piece.
- burrs can only occur during the first cut at the head-side edge of the cut-off first shaped piece and at the oblique cut of the band.
- the cutting burr created on the head-side edge of the first shaped piece is removed together with the material overhang by the second cut in the forming station.
- the first shaped piece is always completely cut through, because the material overhang protrudes beyond the lower mold, so that no more material is compressed on the lower mold.
- the cutting burr created on the oblique cut of the band can be easily molded into the rounding or bevel when shaping the foot-side edge of the second shaped piece due to the reduced amount of fresh concrete to be deformed.
- a rounding or bevel with an almost pore-free smooth surface can be formed if the tape in the cutting station precompresses and / or in the region of the oblique cut when cutting off the first shaped piece is preformed.
- a wedge-shaped first cutting tool can be used to precompress and cut off the first shaped piece.
- a pre-compaction and pre-shaping can take place if the first cutting tool has a shaped body pointing towards the band, which is located in the
- Cutting the first shaped piece presses into the band and forms a step-shaped or rounded gate on the band.
- a particularly efficient method results if the material overhang on the head-side edge of the first molding is cut off at the same time in the molding station when molding the foot-side edge of the second molding.
- the shaping station can have a shaping tool for shaping the edge on the foot side and a second cutting tool for cutting off the material overhang, the shaping and cutting tool being arranged at a distance from one another.
- the molding and cutting tool can be actuated by a piston-cylinder unit, for example a pneumatic cylinder, if the molding and cutting in the molding station is carried out by a second cutting tool attached to the same tool carrier as the molding tool.
- a piston-cylinder unit for example a pneumatic cylinder
- the shaped piece below the second cutting tool or the foot-side edge of the second shaped piece below the molding tool if the cut first shaped piece during transport from the cutting station to the forming station by more than the length of a lower mold and the band provided with the oblique cut by the length of one Lower mold is promoted.
- the distance between the head-side edge of the first shaped piece and the foot-side edge of the second shaped piece that is to be deformed corresponds to the distance between the second cutting tool and the molding tool.
- Fig. 1 shows a cutting station working according to the inventive method and a molding station before cutting off a first molding from a band in a schematic representation
- Fig. 2 shows the cutting station and the forming station after
- FIG. 1 schematically shows a cutting station 10 operating according to the method according to the invention and a forming station 12 before a first shaped piece 14 is cut off from a band 16.
- the cutting station 10 used in the production of concrete roof tiles is continuously supplied by a first transport device 18 with a belt 16 of fresh concrete transported on a strand of abutting sub-molds 20, which is profiled on the upper side in accordance with the surface contour customary for concrete roof tiles.
- the cutting station 10 has a first cutting tool 22 which can be moved by a pneumatic cylinder and which is arranged obliquely to a perpendicular first transverse plane 24 of the band 16.
- the first cutting tool 22 executes an oblique first cut at the edge 26 of the first shaped piece 14 to be cut off.
- Shaped piece 14 already has an oblique cut 38 on its foot-side edge 36.
- the molding station 12 has a tool carrier 40 which can be moved by a pneumatic cylinder and to which a molding tool 42 and a second cutting tool 44 are attached.
- the forming tool 42 is arranged at a distance from the second cutting tool 44, so that the forming tool 42 can be moved in a perpendicular second transverse plane 46 and the second cutting tool 44 in a perpendicular third transverse plane 48.
- the molding tool 40 has a curved outer surface 50 facing the foot-side edge 36, by means of which the oblique cut 38 can be deformed to form a rounding.
- the cutting station 10 and the molding station 12 are shown schematically after the transport of the cut first molding 14 from the cutting station 10 to the molding station 12.
- the first shaped piece 14 provided on its foot-side edge 36 with a rounded-off rounded portion 52 is conveyed together with its lower mold 20 by more than the length of a lower mold 20 by a second transport device 54, which has a conveyor chain 58 studded with cams 56, so that the lower edge of the material overhang 34 adjoining the lower mold 20 is arranged in the vertical third transverse plane 48.
- the second shaped piece 32 to be cut off from the belt 16, on the other hand, has been conveyed by the first transport device 18 by the length of a lower mold 20, so that the lower edge of the oblique gate 28 adjoining the lower mold 20 is arranged in the vertical second transverse plane 46.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96924746A EP0846045A1 (de) | 1995-08-26 | 1996-07-12 | Verfahren zum zerschneiden eines bandes aus plastisch verformbarem material in einzelne formstücke |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19531471.9 | 1995-08-26 | ||
DE1995131471 DE19531471C1 (de) | 1995-08-26 | 1995-08-26 | Verfahren zum Zerschneiden eines Bandes aus plastisch verformbarem Material in einzelne Formstücke |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997007950A1 true WO1997007950A1 (de) | 1997-03-06 |
Family
ID=7770489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/001307 WO1997007950A1 (de) | 1995-08-26 | 1996-07-12 | Verfahren zum zerschneiden eines bandes aus plastisch verformbarem material in einzelne formstücke |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0846045A1 (de) |
DE (1) | DE19531471C1 (de) |
WO (1) | WO1997007950A1 (de) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3335437A1 (de) * | 1983-09-30 | 1984-02-09 | Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm | Dachziegel zum eindecken von schraegen bzw. steilen daechern |
-
1995
- 1995-08-26 DE DE1995131471 patent/DE19531471C1/de not_active Expired - Fee Related
-
1996
- 1996-07-12 WO PCT/DE1996/001307 patent/WO1997007950A1/de not_active Application Discontinuation
- 1996-07-12 EP EP96924746A patent/EP0846045A1/de not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3335437A1 (de) * | 1983-09-30 | 1984-02-09 | Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm | Dachziegel zum eindecken von schraegen bzw. steilen daechern |
Also Published As
Publication number | Publication date |
---|---|
EP0846045A1 (de) | 1998-06-10 |
DE19531471C1 (de) | 1996-09-12 |
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