EP2420367A1 - Kontinuierlich arbeitendes walzwerk mit heisspressplatte - Google Patents

Kontinuierlich arbeitendes walzwerk mit heisspressplatte Download PDF

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Publication number
EP2420367A1
EP2420367A1 EP09843243A EP09843243A EP2420367A1 EP 2420367 A1 EP2420367 A1 EP 2420367A1 EP 09843243 A EP09843243 A EP 09843243A EP 09843243 A EP09843243 A EP 09843243A EP 2420367 A1 EP2420367 A1 EP 2420367A1
Authority
EP
European Patent Office
Prior art keywords
drum
heating plate
press
driving
steel belt
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
Application number
EP09843243A
Other languages
English (en)
French (fr)
Other versions
EP2420367A4 (de
EP2420367B1 (de
Inventor
Xiqiang Guo
Mingshou Nan
Jingwei Sun
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.)
Dunhua Yalian Machiney Co Ltd
Original Assignee
Dunhua Yalian Machiney Co Ltd
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 Dunhua Yalian Machiney Co Ltd filed Critical Dunhua Yalian Machiney Co Ltd
Publication of EP2420367A1 publication Critical patent/EP2420367A1/de
Publication of EP2420367A4 publication Critical patent/EP2420367A4/de
Application granted granted Critical
Publication of EP2420367B1 publication Critical patent/EP2420367B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/26—Moulding or pressing characterised by using continuously acting presses having a heated press drum and an endless belt to compress the material between belt and drum
    • 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

Definitions

  • This invention published a continuous roller press with flexible heating plate. It belongs to the technical field of wood working mechanicals technology.
  • the structure and the working principle of the present continuous roller hot press for the production of MDF and particleboard is as shown in fig 1 .
  • the feeding belt conveyor transfers MDF mat or particleboard mat into the gap between the main pressing drum and the steel belt where the mat is first compressed and heated up from both sides by the main pressing drum and the steel belt. After running for roughly 3 meters the mat is compressed by the pressing drum the second time. The steel belt is heated up also by the pressing drum. After roughly 2 meters more the mat reaches another pressing drum. The mat is compressed the third time and the steel belt is heated up one more time by the pressing drum. The raw panel is made when the mat is transferred between the main pressing drum and the steel belt up to the outlet of the press.
  • the disadvantages of the present press are as below. First of all the time for the first compressing is very short. The high density layers on the surfaces of the panel are very thin. The second, the heat reserved on the steel belt is very limited. Even though it is heated up two more times by the pressing drums the heat energy is still insufficient for the process. As the result the mat can not be sufficiently compressed when the core layer of the mat is heated up to the softening temperature. Due to the insufficient compressing the core density of the mat is low resulted in the low internal bond of the mat.
  • This invention provides a continuous roller press with flexible heating plate without the disadvantages of the present roller press described above i.e. insufficient pressing and heating.
  • the solution of this invention is as below. Guiding drum, driving drum and tension drum are installed the press frame in a triangular shape.
  • the driving drum is connected to a gear reducer which is driven by a variable frequency driving motor.
  • the main pressing drum is installed between the guiding drum and the driving drum.
  • the main press drum and the guiding drum constitute the first pressure application mechanism of the press.
  • Thermal oil channels are arranged in the shell of the main pressing drum.
  • the surface profile of the main pressing drum is shaped in such a way that the diameter in the middle is a little bit bigger than on both of the ends.
  • the circular steel belt cinctures the guiding drum, the main press drum, the driving drum and the tension drum so that a closed heat transfer and driving mechanism is formed.
  • the steel belt transfers the driving force from the driving drum to drive the other drums.
  • the whole system transfers the heat and pressure to the mat. It is characterized in the arc-shaped flexible heating plate with internal thermal oil channels.
  • the heating plate is pressed against the main pressing drum by hydraulic cylinders via the roller carpet and the steel belt to form the heat and pressure transfer mechanism.
  • Two groups of hydraulic cylinders are installed at the press inlet zone and the press outlet zone respectively.
  • the heating plate inlet is hinged to the press frame by hydraulic cylinders to adjust the inlet angle.
  • the heating plate outlet is hinged to the press frame by hydraulic cylinders to adjust the pressure between the heating plate and the main pressing drum.
  • Roller carpet consists of roller rods and roller chains. The roller carpet is also a circular shaped.
  • roller carpet At the outlet of the press the roller carpet is driven by variable frequency drive motor via sprockets.
  • the roller carpet is installed between the heating plate and the steel belt to transfer heat and pressure from the heating plate to the steel belt.
  • the roller carpet is tensioned by a pneumatic tension device installed in the inner side of the roller carpet.
  • the driving drum is driven by motor via gear reducer with variable frequency inverter.
  • the steel belt is driven by the driving drum due to the friction between the drum surface and the steel belt.
  • the steel belt drives the tension drum, the main drum and the guiding drum.
  • the mat passes through the gap between the main pressing drum and the steel belt.
  • the pressure and the location of the hydraulic cylinders can be adjusted according to the process. Under the combined function of the pressure and the heat the mat in converted into finished panel.
  • the positive function of this invention is that the flexible heating plate is adapted to apply the pressure and the heat to the mat continuously. And also the pressure and temperature can be adjusted freely according to the process.
  • the performance of continuous flat press can be achieved by this new type of roller press.
  • the density on the surfaces can be higher and the surface quality is better than the present roller press.
  • the heat transfer from the steel belt to the mat is higher which makes the heating on both sides of the mat more balanced.
  • By better balanced heating on both sides of the mat the core layer density of the mat is higher resulting in higher internal bond property of the finished panels. Comparing with the present roller press the bending strength of the finished panel increases 30%, the internal bond increases 50%, the resin consumption reduces 40%, the production efficiency increases 5%.
  • the driving drum 3, tension drum 4 and guiding drum 5 are installed in a triangle on the press frame 1.
  • the main pressing drum 2 is installed between the driving drum 3 and the guiding drum 5.
  • the main pressing drum is fixed on the press frame by the bearing seat through a key.
  • the main pressing drum 2 and the guiding drum 5 forms the first pressing mechanism for the mat 9.
  • the diameter in the middle of the main pressing drum 2 is a little bigger than the diameters in both ends.
  • Thermal oil channels are built inside the main pressing drum 2 to heat up the main pressing drum.
  • Heavy duty self aligning bearings are installed on the shaft of the main pressing drum.
  • One shaft end of the driving drum 3 is driving by variable frequency motor via a gear reducer. Both ends of the tension drum 4 are driven by hydraulic cylinders 4.1.
  • the tension of the steel belt 8 is adjusted by moving the shaft ends of the tension drum 4 with hydraulic cylinders.
  • the bearings of the guiding drum are connected to hydraulic cylinders 5.1. During working the cylinders press the guiding drum 5 against the main pressing drum 2 to apply pressure to the mat 9.
  • Inside the shell of the guiding drum there are also thermal oil channels to heat up the guiding drum. The heat of the guiding drum shell is transferred to the steel belt 8 and thus transferred to the mat.
  • the flexible heating plate 10 is made of high strength steel. Inside the heating plate thermal oil channels are built to heat up the heating plate. The heating plate is divided into different heating zones according to the temperature difference.
  • the heating plate inlet 11 is hinged to the frame 1 by hydraulic cylinder 11.1.
  • the inlet angle of the heating plate can be adjusted by the hydraulic cylinders 11.1.
  • Cylinders 13.1 are divided into two groups. One group is located close to the heating plate inlet and another group is located close to the heating plate outlet. Hydraulic cylinders 13.1 are installed on the cross beam 13. The cross beam 13 is installed on the frame 1 by bolts.
  • the outlet of the heating plate 12 is hinged to the frame 1 via hydraulic cylinder 12.1 to adjust the pressure between the heating plate 10 and the main pressing drum 2.
  • the circular roller carpet consists of roller rods 17 and roller chains 18 ( fig 3 ).
  • the roller carpet is driven by the driving sprockets 19 at the outlet of the heating plate.
  • the sprockets are driving by variable frequency motor via gear reducer ( fig 4 ).
  • the roller carpet is installed between the heating plate 10 and the steel belt 8 to transfer both the heat and the pressure.
  • the pneumatic tension unit 15 installed in the inner side of the carpet is used to adjust the tension of the roller carpet ( fig. 5 ).
  • the belt tension device 16 is installed on the frame 1 to apply pressure to the steel belt from inside the steel belt to adjust the tension of the belt.
  • the driving drum is driven by motor via gear reducer with variable frequency inverter.
  • the steel belt is driven by the driving drum due to the friction between the drum surface and the steel belt.
  • the steel belt drives the tension drum, the main drum and the guiding drum.
  • the mat passes through the gap between the main pressing drum and the steel belt.
  • the pressure and the location of the hydraulic cylinders are adjusted according to the process. Under the combined function of the pressure and the heat the mat in converted into finished panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Press Drives And Press Lines (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
EP09843243.8A 2009-04-15 2009-12-06 Kontinuierlich arbeitendes walzwerk mit heisspressplatte Not-in-force EP2420367B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009100668214A CN101531025B (zh) 2009-04-15 2009-04-15 带有柔性热压板的连续辊压机
PCT/CN2009/075336 WO2010118609A1 (zh) 2009-04-15 2009-12-06 带有柔性热压板的连续辊压机

Publications (3)

Publication Number Publication Date
EP2420367A1 true EP2420367A1 (de) 2012-02-22
EP2420367A4 EP2420367A4 (de) 2013-03-27
EP2420367B1 EP2420367B1 (de) 2014-07-23

Family

ID=41101985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09843243.8A Not-in-force EP2420367B1 (de) 2009-04-15 2009-12-06 Kontinuierlich arbeitendes walzwerk mit heisspressplatte

Country Status (3)

Country Link
EP (1) EP2420367B1 (de)
CN (1) CN101531025B (de)
WO (1) WO2010118609A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950867A (zh) * 2012-11-29 2013-03-06 江苏协诚科技发展有限公司 一种复合板连续热复合装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101531025B (zh) * 2009-04-15 2010-09-29 敦化市亚联机械制造有限公司 带有柔性热压板的连续辊压机
CN102529293A (zh) * 2012-01-18 2012-07-04 敦化市亚联机械制造有限公司 加热冷却定型一体化生产复合板材的双钢带连续压机
CN102615917B (zh) * 2012-04-06 2014-08-13 敦化市亚联机械制造有限公司 用于生产热塑型复合材料的方法及双钢带连续压机
CN105058834B (zh) * 2015-07-20 2017-03-15 广西力源宝科技有限公司 带式发酵物料压片机
CN105599068B (zh) * 2015-12-21 2018-07-06 北京林业大学 一种辊压热压机、单板接长系统及单板接长方法
CN108843630B (zh) * 2018-07-23 2024-02-02 中国重型机械研究院股份公司 一种位置及压力连续可调的驱动辊压下液压控制系统
CN110614682B (zh) * 2019-09-23 2021-03-23 上海军裕实业有限公司 一种强化复合地板热压机
CN114801432A (zh) * 2022-03-10 2022-07-29 深圳市华鑫防伪科技有限公司 一种模压印刷机用的模压加压装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104298A (ja) * 1982-12-06 1984-06-16 Fuji Electric Co Ltd キヤタピラプレス
US4877487A (en) * 1986-04-08 1989-10-31 Miller Ray R Belt and drum-type press with supplemental nip loading means
DE4118420C1 (en) * 1991-06-05 1992-06-17 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De Continuous chip-board and fibre-board mfg. press - has steel strip looped around press drum, with deposition roller on strip top side
DE4319059A1 (de) * 1993-06-09 1994-12-22 Kraftanlagen Ag Heidelberg Verfahren zum Verpressen von Material in einer Band- oder Doppelbandpresse und Bandpresse zur Durchführung des Verfahrens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541286A1 (de) * 1985-03-22 1986-09-25 Wilhelm Mende GmbH & Co, 3363 Gittelde Einrichtung zur kontinuierlichen herstellung einer endlosen, duennen spanplattenbahn
DE3800994A1 (de) * 1988-01-15 1989-08-17 Berstorff Gmbh Masch Hermann Presse zum kontinuierlichen herstellen von span- und faserplatten oder dergleichen
ES2121931T3 (es) * 1993-06-25 1998-12-16 Pretto De Escher Wyss Srl Dispositivo para la fabricacion continua de paneles de particulas, paneles de fibras u otros.
DE10237826A1 (de) * 2002-08-19 2004-03-11 Voith Paper Patent Gmbh Vorrichtung zur Herstellung von Materialbahnen
CN101531025B (zh) * 2009-04-15 2010-09-29 敦化市亚联机械制造有限公司 带有柔性热压板的连续辊压机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104298A (ja) * 1982-12-06 1984-06-16 Fuji Electric Co Ltd キヤタピラプレス
US4877487A (en) * 1986-04-08 1989-10-31 Miller Ray R Belt and drum-type press with supplemental nip loading means
DE4118420C1 (en) * 1991-06-05 1992-06-17 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De Continuous chip-board and fibre-board mfg. press - has steel strip looped around press drum, with deposition roller on strip top side
DE4319059A1 (de) * 1993-06-09 1994-12-22 Kraftanlagen Ag Heidelberg Verfahren zum Verpressen von Material in einer Band- oder Doppelbandpresse und Bandpresse zur Durchführung des Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010118609A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950867A (zh) * 2012-11-29 2013-03-06 江苏协诚科技发展有限公司 一种复合板连续热复合装置

Also Published As

Publication number Publication date
EP2420367A4 (de) 2013-03-27
EP2420367B1 (de) 2014-07-23
WO2010118609A1 (zh) 2010-10-21
CN101531025A (zh) 2009-09-16
CN101531025B (zh) 2010-09-29

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