WO2008122301A1 - Rolling partial plates in a continuous press - Google Patents
Rolling partial plates in a continuous press Download PDFInfo
- Publication number
- WO2008122301A1 WO2008122301A1 PCT/EP2007/003133 EP2007003133W WO2008122301A1 WO 2008122301 A1 WO2008122301 A1 WO 2008122301A1 EP 2007003133 W EP2007003133 W EP 2007003133W WO 2008122301 A1 WO2008122301 A1 WO 2008122301A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolling
- abrollteilplatte
- beginning
- subsequent
- continuous press
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
- B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
- B30B5/065—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band using anti-friction means for the pressing band
- B30B5/067—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band using anti-friction means for the pressing band using anti-friction roller means
Definitions
- the present invention relates to continuous presses for producing sheets by pressing a material, in particular wood-based panels or laminate panels.
- the present invention particularly relates to the design of the Abrollteilplatten in a continuous press.
- Continuous presses are used for the production of boards such as wood-based boards, laminate boards, chipboard, fiberboard and the like.
- the material to be pressed - the pressed material - is pressed continuously between a press upper part and a press lower part by means of an upper pressed steel strip and a lower pressed steel strip.
- the steel press belts run endlessly around deflection and drive rollers.
- the steel plate press belts in the pressing area are supported on rolling plates with the interposition of rolling bodies.
- These rolling plates normally have heating channels with which the material to be pressed is heated.
- a heat transfer element such as a heat transfer oil, hot water or steam, which can be provided by a arranged outside of the rolling plate heating system can the.
- a pressure is exerted on the rolling plates, which is passed on to the pressed material via the rolling elements and the pressed steel strip.
- an arrangement of press cylinders is used for this purpose.
- the continuous presses in the press top and in the press bottom each include a plurality of take-up divider plates which are interconnected. It has been shown that the mechanical load is very high due to the running on the rolling side of the rolling plate rolling body at the transition from a Abrollteilplatte to next Abrollteilplatte due to manufacturing tolerances, so that the corresponding ends wear after a relatively short period of operation by so-called pitting can show. As a result, not only the rolling elements running along the rolling side of the rolling plate are influenced, but the broken-out parts of the rolling plate can also lead to substantial damage within the continuous press.
- the continuous press for producing sheets according to the present invention comprises at least one continuous steel plate press belt, a plurality of rolling bodies and at least one rolling plate consisting of a plurality of rolling partial plates, the rolling bodies being arranged on the rolling side of the rolling plate.
- two adjacent in the running direction Abrollteilplatten are arranged such that the beginning of the rolling side of a subsequent rolling in the following unwinding towards the end of the rolling side of the immediately preceding in the direction of Abrollteilplatte is offset to the rear.
- the breaking of parts of the Abrollteilplatten is prevented by a certain type of stage in the invention.
- the rolling elements along the rolling sides of the rolling plates a controlled way back, in which the mechanical stress is surprisingly much lower than in the known embodiments.
- the risk of breaking out of parts of the Abrollteilplatten is substantially reduced.
- the subsequent Abrollteilplatte is offset from the immediately preceding Abrollteilplatte by 5 to 100 microns to the rear.
- the following Abroll- part plate is offset from the immediately preceding Abrollteilplatte by 10 to 60 microns to the rear.
- the chamfer at the end of the preceding Abrollteilplatte and at the beginning of the subsequent Abrollteilplatte preferably extends over a length of 0.3 to 10 mm.
- the bevel preferably has a height difference of 3 to 25 microns, more preferably from 7 to 10 microns.
- the dimensions of the chamfer are selected in relation to the diameter of the rolling elements.
- the ratio of the height difference of the chamfer to the diameter of the rolling bodies is then preferably between 1/500 and 1/5000, more preferably between 1/2000 and 1/4000.
- the ratio of the length of the chamfer to the diameter of the rolling bodies is then preferably between 1/4 and 1/70 and more preferably between 1/15 and 1/30.
- FIG. 1 is a sketch of the structure of a continuous press, as it can be used in the context of the present invention; and FIG. 2 shows a section of a continuous press with the arrangement of the unwinding part plates according to the invention.
- Figure 1 shows in outline the construction of a continuous press 1, as it can be used in connection with the present invention.
- the press 1 contains in the press upper part and in the lower press part in each case a circulating steel press belt 2, which is guided by means of corresponding deflection rollers.
- the two steel press belts 2 in a pressing region form a gap in which the pressed material is pressed in the running direction 5.
- rolling elements 3 are arranged on the back of the steel strips.
- these are steel rods that are guided by means of a chain or another suitable rod circulating device via a circulation path (not shown).
- the press upper part and the lower press part also have respective rolling plates 4.
- these rolling plates 4 are heating channels with which the pressed material can be heated.
- the rolling plates 4 exert pressure on the pressed material via the rolling bodies 3 and the steel sheet belts 2.
- Figure 2 shows a section of a continuous press 1 with the inventive arrangement of the Abrollteilplatten 4a, 4b.
- the two in the direction 5 adjacent Abrollteilplatten 4a, 4b are arranged to each other such that in the running direction 5 subsequent Abrollteilplatte 4b is offset from the previous Abrollteilplatte 4a to the rear.
- the distance A indicates how the two Abrollteilplatten are arranged to each other.
- the distance A is measured by the rolling sides 6 of the Abrollteilplatten 4a, 4b. At this time, the distance between the end of the rolling-off side 6 of the preceding rolling-off plate 4a and the beginning of the rolling-off side 6 of the following rolling-off plate 4b is measured.
- the bevels 7 also shown in Figure 2 have no influence on the distance A.
- the distance A at the beginning or at the end of the roll-off 6 is measured, while the bevels 7 at the beginning or at the end of Abrollteilplatten 4a, 4b are arranged.
- the chamfers 7 on the preceding Abrollteilplatte 4a and the subsequent sub-plate 4b are highlighted in Figure 2 by dotted ellipses. These chamfers 7 are arranged in the running direction 5 after the end of the unwinding side 6 of the preceding unwinding part plate 4 a and before the beginning of the unrolling side 6 of the following unwinding part plate 4 b.
- the end of the preceding Abrollteilplatte 4a and the beginning of the subsequent Abrollteilplatte 4b are preferably very flat beveled in the context of the present invention.
- the chamfers 7 illustrated in FIG. 2 do not reproduce this to scale.
- the length of the bevel, which is illustrated by B in FIG. 2 is preferably substantially greater than the height of the bevel 8, which is illustrated by C in FIG.
- the previous Abrollteilplatte 4a and the subsequent Abrollteilplatte the same bevel 7. This is not necessarily the case.
- the two bevels may also have different dimensions.
- the present invention provides for the first time a continuous press with rolling plates consisting of a plurality of roll-off dividing plates, in which the breaking-out of parts of the roll-off dividing plates is prevented.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800525027A CN101646554B (en) | 2007-04-05 | 2007-04-05 | Rolling partial plates in a continuous press |
DE112007003417.3T DE112007003417B4 (en) | 2007-04-05 | 2007-04-05 | Abrollteilplatten in a continuous press |
PCT/EP2007/003133 WO2008122301A1 (en) | 2007-04-05 | 2007-04-05 | Rolling partial plates in a continuous press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2007/003133 WO2008122301A1 (en) | 2007-04-05 | 2007-04-05 | Rolling partial plates in a continuous press |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008122301A1 true WO2008122301A1 (en) | 2008-10-16 |
Family
ID=38738932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/003133 WO2008122301A1 (en) | 2007-04-05 | 2007-04-05 | Rolling partial plates in a continuous press |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN101646554B (en) |
DE (1) | DE112007003417B4 (en) |
WO (1) | WO2008122301A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011038920A3 (en) * | 2009-09-30 | 2011-06-03 | Dieffenbacher Gmbh + Co. Kg | Pelletizing press and method for operating a pelletizing press |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3825819A1 (en) * | 1988-07-29 | 1990-02-01 | Siempelkamp Gmbh & Co | Process for pressing and hardening moisture-containing mats during the manufacture of particle boards, fibreboards and similar wood-based material boards, and press designed for carrying out the process |
DE4316441C1 (en) * | 1993-05-18 | 1994-05-05 | Siempelkamp Gmbh & Co | Continuous press for wooden or laminated panels - comprises upper and lower press sections each with continuous pressure band, rolling bars and heater plates divided into section with interlocking joints |
DE19518879A1 (en) * | 1995-05-28 | 1996-12-05 | Dieffenbacher Gmbh Maschf | Mfr of chipboard etc. by stepped pressing between steel strips |
DE19858125A1 (en) * | 1998-12-16 | 2000-06-21 | Dieffenbacher Gmbh Maschf | Continuous press for wood or plastics board materials has a structured press stretch divided into part-sections for heating and cooling with controlled conditions according to the materials |
DE19858152A1 (en) * | 1998-12-16 | 2000-06-21 | Dieffenbacher Gmbh Maschf | Continuous press for wood or recycled thermoplastic boards has structured sections for heating and heating/cooling and cooling to ensure that finished board material has no water or vapor pockets |
WO2002094521A1 (en) * | 2001-05-21 | 2002-11-28 | Metso Paper, Inc. | Double band press |
EP1676696A2 (en) * | 2005-01-03 | 2006-07-05 | Dieffenbacher GmbH & Co. KG | Continuously operating press for making plates |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1074651A (en) * | 1992-01-25 | 1993-07-28 | 库特·海尔德 | Continuously operating dual-band extruder |
-
2007
- 2007-04-05 CN CN2007800525027A patent/CN101646554B/en active Active
- 2007-04-05 WO PCT/EP2007/003133 patent/WO2008122301A1/en active Application Filing
- 2007-04-05 DE DE112007003417.3T patent/DE112007003417B4/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3825819A1 (en) * | 1988-07-29 | 1990-02-01 | Siempelkamp Gmbh & Co | Process for pressing and hardening moisture-containing mats during the manufacture of particle boards, fibreboards and similar wood-based material boards, and press designed for carrying out the process |
DE4316441C1 (en) * | 1993-05-18 | 1994-05-05 | Siempelkamp Gmbh & Co | Continuous press for wooden or laminated panels - comprises upper and lower press sections each with continuous pressure band, rolling bars and heater plates divided into section with interlocking joints |
DE19518879A1 (en) * | 1995-05-28 | 1996-12-05 | Dieffenbacher Gmbh Maschf | Mfr of chipboard etc. by stepped pressing between steel strips |
DE19858125A1 (en) * | 1998-12-16 | 2000-06-21 | Dieffenbacher Gmbh Maschf | Continuous press for wood or plastics board materials has a structured press stretch divided into part-sections for heating and cooling with controlled conditions according to the materials |
DE19858152A1 (en) * | 1998-12-16 | 2000-06-21 | Dieffenbacher Gmbh Maschf | Continuous press for wood or recycled thermoplastic boards has structured sections for heating and heating/cooling and cooling to ensure that finished board material has no water or vapor pockets |
WO2002094521A1 (en) * | 2001-05-21 | 2002-11-28 | Metso Paper, Inc. | Double band press |
EP1676696A2 (en) * | 2005-01-03 | 2006-07-05 | Dieffenbacher GmbH & Co. KG | Continuously operating press for making plates |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011038920A3 (en) * | 2009-09-30 | 2011-06-03 | Dieffenbacher Gmbh + Co. Kg | Pelletizing press and method for operating a pelletizing press |
Also Published As
Publication number | Publication date |
---|---|
DE112007003417B4 (en) | 2018-09-27 |
CN101646554A (en) | 2010-02-10 |
DE112007003417A5 (en) | 2010-02-25 |
CN101646554B (en) | 2011-12-07 |
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