EP0236905B1 - Dispositif pour appliquer une pression superficielle sur des pièces à travailler en mouvement de translation - Google Patents

Dispositif pour appliquer une pression superficielle sur des pièces à travailler en mouvement de translation Download PDF

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Publication number
EP0236905B1
EP0236905B1 EP87102941A EP87102941A EP0236905B1 EP 0236905 B1 EP0236905 B1 EP 0236905B1 EP 87102941 A EP87102941 A EP 87102941A EP 87102941 A EP87102941 A EP 87102941A EP 0236905 B1 EP0236905 B1 EP 0236905B1
Authority
EP
European Patent Office
Prior art keywords
rollers
axle bar
roller
pressure plate
springs
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.)
Expired - Lifetime
Application number
EP87102941A
Other languages
German (de)
English (en)
Other versions
EP0236905A2 (fr
EP0236905A3 (en
Inventor
Raoul De Brock
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.)
Theodor Hymmen KG
Original Assignee
Theodor Hymmen KG
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 Theodor Hymmen KG filed Critical Theodor Hymmen KG
Priority to AT87102941T priority Critical patent/ATE62178T1/de
Publication of EP0236905A2 publication Critical patent/EP0236905A2/fr
Publication of EP0236905A3 publication Critical patent/EP0236905A3/de
Application granted granted Critical
Publication of EP0236905B1 publication Critical patent/EP0236905B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 invention relates to a device for applying surface pressure to progressive workpieces, such as wood-based panels, rubber, plastic sheets or the like, in which at least one circumferential press belt can be pressed against the workpiece and the working pressure can be applied to the working belt of the press belt by means of a pressure plate, and in the area of the pressure plate spaced from each other, in frictional connection with the pressure plate and the associated work of the press belt, extending over the entire width of the press belt rolling elements are provided, which are transported back on a closed path from the discharge of the pressure plate to the insertion of the pressure plate and the rolling elements are designed as a row of rolls lying in the axial direction and assembled into a structural unit, in which the rolls enclose an axle rod with an annular gap, are aligned with one another in the starting position and d he or the neighboring roles are rotatably mounted.
  • a double belt press of this type is known (GB-A-754 935), in which the rollers are combined to form a roller chain.
  • Each two spaced rollers are rotatably mounted on a support rod.
  • Link plates are arranged between the rollers and on the outside of the support rods.
  • high tension peaks occur at the front edges, which are reinforced by shifting the rollers by half a roller diameter.
  • rollers rotatably mounted on a support rod are at a distance from one another which is determined by a roller width and the width of two link plates. In the area of these link plates, no pressure is transmitted from the pressure plate via the roller chain to the press belt, so that this has a disadvantageous effect on the material web.
  • the rollers are rotatably mounted on the support rod with the usual bearing play.
  • a double belt press is also known (DE-A-31 17 778), in which roller bars are provided as rolling elements between the pressure plates and the press belts. These roller bars extend across the entire machine width, which can be two to three meters, and have a diameter of 14 to 16 mm.
  • Such an unfavorable length / diameter ratio leads to a high torsional stress on the individual roller bars or to a slippage of the roller bars between the press belt, which is generally made of sheet steel, and the pressure plate and thus to premature wear.
  • the diameter differences in the roller bar, or the like due to manufacturing tolerances, manufacturing inaccuracies, due to different thermal expansions. can arise, result in that when rolling a certain path in the pressing area different locations of the roller bars have different angular velocities, so that due to their diameter tolerances over their length, the roller bars are set to different torsional stresses.
  • the invention has for its object to design a device of the type mentioned so that existing across the length of the rolling elements different diameter tolerances and occurring at the various locations of the pressure plates and the press belts in cooperation with the rolling elements not disadvantageous to the life and affect the correct operation of the rolling elements and the desired operating temperature of the press belt can be reached for a short time.
  • devices for checking the rotation of the sleeves can be assigned to the roller strands.
  • the rotation control can be mechanical or electromechanical Ways to be effected. Blocking of a sleeve can be indicated at an end point of the axle rod and / or on the control panel or can be used to actuate an emergency stop.
  • the blocking of a sleeve can be attributed to a permanent deformation of the sleeve, which is caused by a foreign body that has entered the workpiece, for example by a screw, which acts on the sleeve via the press belt and deforms it beyond the elastic range.
  • the double belt press shown in FIGS. 1 and 2 has endless press belts 1, which can be made from sheet steel and are guided over deflection rollers 2.
  • the deflection rollers 2 are rotatably mounted in a press frame in which an upper and a lower pressure plate 3 are also arranged.
  • roller strands 4 are provided at a distance from one another, via which the pressing forces generated by the printing plates 3 are transmitted to the working strand of the pressing belt 1.
  • Workpieces 5 are guided through the double belt press between the working strands of the press belts 1 and subjected to a surface pressure.
  • roller strands 4 which can be connected to one another by a flexible means without a connection to one another or at the ends, are guided in the press frame on closed tracks 6, which are indicated by dash-dotted lines in FIG. 2. The roller strands 4 are thus returned from the discharge end 7 to the introducer 8 of the printing plates 3.
  • the roller train consists of rollers 9 and cylindrical end pieces 10.
  • the rollers 9 are rotatable with one another and with the cylindrical end pieces 10 and are therefore positively connected to one another in such a way that the rollers have a pin 11 in the center on one end face, which engages in a central recess 12 of the end face of the adjacent rollers.
  • the end pieces 10 also have a central recess 12 or a pin 11 on the inner end face, so that the end pieces 10 are positively connected to one another in the same way as the rollers with the respectively adjacent roller.
  • the end pieces can be provided with a push-through hole 13 for a steel cable or a steel strand, through which the roller strands can be connected to one another.
  • the steel cable or the steel strand forms a flexible connecting means for the individual roller strands.
  • the roller train is formed by hollow cylinders 14 which lie flush with one another with their end faces, correspond in their outer diameter and are rotatably mounted on an axle rod 15 with little play.
  • This axle rod 15 is biased and equipped at the ends with a package of disc springs 16, which is supported on the outer end face of the outer roller.
  • the end faces of the hollow cylinders 14 are pressed together non-positively by the prestressing of the axle rod 15 and by the attachment of the plate spring assemblies to the rod ends.
  • the frictional connection between the individual rollers of a roller strand can also be achieved by other springs e.g. can be achieved by spiral springs or hydropneumatic springs.
  • the rollers are designed as sleeves 17 with a small casing thickness and are rotatably mounted on an axle rod 18 with a relatively large annular gap.
  • the annular gap between the sleeves 17 and the axle rod 18 is designed so that the sleeves are elastically deformable until they rest against the axle rod 18. This results in a series of elastic intermediate members between the rigid pressure plates 3 and the press belts 1, which can have a compensating effect over the entire length of the roller strands and over individual areas of each roller strand.
  • the axle rod 19 is oval in cross section, as shown in FIG. 8.
  • the sleeve 17 can be elastically deformed until it rests on the associated boundary surface of the axle rod 19.
  • axle rod 20 in a triangular shape or to give it another geometric shape, e.g. a cuboid shape to give from the point of view that it limits the deformability of the sleeve after an elastic deformation of the sleeve surrounding it and thus the spring characteristic of the roller strand is changed.
  • axle rod as a tube, that as a round tube, as an oval tube 21, as shown in FIG. 10, or as a triangular tube or as a tube with a different cross section, for example a cuboid shape. can be trained.
  • a wire, a stranded wire, a rope or another flexible means can also be used as the axis rod.
  • the end edges of the rollers are designed such that they form an angle with the axis of rotation 22 which is a little less than 90 °. This angle can range from 85 to 89 °.
  • the rolls of a roller train are designed as sleeves and the sleeves are assigned a resilient abutment at the ends of the axle rod or are arranged to be movable in the axial direction
  • the sleeves have mobility in the vertical direction _ in their elastic range _ and in the axial direction, so that they not only absorb vertical loads resiliently, but also movements in the axial direction can be carried out in the transverse direction under the influence of thermal expansion of the press belts.
  • roller strands 4 shown in FIGS. 12 and 13 are connected to one another approximately in their respective central region by tabs 27 which are articulated to one another.
  • a plurality of tabs 27 in the form of a multi-link chain can each connect two roller strands 4 so that a deflection radius, when the roller strands 4 are transported back from the discharge end of the printing plate to its insertion, can advantageously be kept small.
  • roller strands 4 The attachment of the roller strands 4 to each other in the middle area prevents different wear of the hollow cylinders 14 from occurring due to different loads, which can lead to difficulties in transporting the roller strands 4, in particular in the back run, as can occur with the roller strands 4 being stored on both sides.
  • FIG. 14 Another rolling element according to the invention is shown in FIG. 14.
  • the rolling element is likewise designed as a roller train 4 which has a row of hollow cylinders 23 and is combined to form a structural unit.
  • springs 25 are arranged, each of which is supported on the opposite end faces of two hollow cylinders 23.
  • the springs 25, which in the present exemplary embodiment are designed as plate springs, ensure that the hollow cylinders 23 are cushioned in the axial direction, so that the addition of compressive stresses is prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Refrigerator Housings (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Coating Apparatus (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Soil Working Implements (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Claims (19)

1. Dispositif destiné à appliquer une pression superficielle sur des pièces d'ouvrage en mouvement telles que des plaques en matériau à base de bois, des bandes de caoutchouc, de matière plastique ou similaire, dans lequel au moins une bande de pressage (1) continue peut être pressée contre la pièce d'ouvrage (5) et la pression de travail peut être appliquée sur le brin de travail de la bande de pressage au moyen d'une plaque de pression (3) et dans lequel on prévoit, dans la région de la plaque de pression (3), des corps de roulement disposés espacés l'un de l'autre, se trouvant en liaison de friction avec la plaque de pression et le brin de travail correspondant de la bande de pressage (1), s'étendant sur toute la largeur de la bande de pressage lesquels corps de roulement sont renvoyés, sur une voie (6) fermée, de l'extrémité d'extraction de la plaque de pression à l'extrémité d'introduction de celle-ci et les corps de roulement forment une ligne de rouleaux comportant des rouleaux disposés en une rangée axiale et constituant une unité de construction dans laquelle les rouleaux entourent une tige d'axe, avec une fente annulaire, sont alignés entre eux dans la position initiale et sont montés tournants par rapport au ou aux rouleaux adjacents, caractérisé en ce que dans chaque ligne de rouleaux, les rouleaux (14, 17, 23, 24) sont reliés entre eux par concordance de forme et/ou en force, entourent une tige d'axe (15, 18, 19, 20, 21), avec une grande fente annulaire dépassant le jeu de palier et sont déformables élastiquement jusqu'à venir s'appliquer contre la tige d'axe.
2. Dispositif selon la revendication 1, caractérisé en ce que sont disposés au moins entre deux rouleaux, des ressorts (25) qui prennent appui chacun contre les faces frontales opposées de deux rouleaux.
3. Dispositif selon la revendication 1, caractérisé en ce que les axes de rotation des rouleaux forment, à l'état de fonctionnement, des tangentes à l'axe principal de la ligne de rouleaux.
4. Dispositif selon la revendication 1, caractérisé en ce que les rouleaux sont des cylindres creux (14) ou des douilles (17) de faible épaisseur d'enveloppe.
5. Dispositif selon la revendication 4, caractérisé en ce que les douilles d'une ligne de rouleaux sont différentes en ce qui concerne l'épaisseur d'enveloppe et/ou le matériau.
6. Dispositif selon la revendication 1, caractérisé en ce que la tige d'axe (15) est précontrainte et en ce que des ressorts sont fixés sur les extrémités de la tige et prennent appui contre la face frontale extérieure des rouleaux extérieurs (14).
7. Dispositif selon la revendication 6, caractérisé en ce que les ressorts sont des ressorts à disques (16), des ressorts en spirale ou des ressorts hydropneumatiques.
8. Dispositif selon la revendication 1, caractérisé en ce que chaque tige d'axe est montée à ses extrémités, de manière solidaire en rotation sur un moyen flexible reliant les lignes de rouleaux (4).
9. Dispositif selon la revendication 1, caractérisé en ce que chaque tige d'axe (15, 18) est montée tournante.
10. Dispositif selon la revendication 8, caractérisé en ce que la tige d'axe (19) présente une section transversale ovale et en ce qu'il existe un jeu horizontal réduit et un jeu vertical relativement grand, entre les douilles (17) disposées sur la tige d'axe et la tige d'axe et en ce que les douilles sont déformables élastiquement, au-delà du jeu vertical, jusqu'à s'appliquer contre la tige d'axe.
11. Dispositif selon la revendication 8 ou 9, caractérisé en ce que la tige d'axe présente une section transversale ronde, carrée ou triangulaire.
12. Dispositif selon la revendication 8 ou 9, caractérisé en ce que la tige d'axe est un tube et en ce que le tube est de section transversale ronde, ovale, carrée ou triangulaire.
13. Dispositif selon la revendication 8 ou 9, caractérisé en ce que la tige d'axe est un fil métallique, un toron ou un moyen flexible similaire.
14. Dispositif selon la revendication 4, caractérisé en ce que des dispositifs de contrôle de rotation des douilles sont associés aux lignes de rouleaux.
15. Dispositif selon la revendication 14, caractérisé en ce que le contrôle de rotation s'effectue mécaniquement ou électromagnétiquement.
16. Dispositif selon la revendication 14 ou 15, caractérisé en ce que le blocage d'une douille est affiché à une extrémité de la tige d'axe et/ou au pupitre de commande, ou entraîne l'actionnement d'un dispositif d'arrêt d'urgence.
17. Dispositif selon la revendication 1, caractérisé en ce que les bords frontaux des rouleaux de deux lignes de rouleaux (4), disposées directement l'une derrière l'autre, sont décalés latéralement les uns par rapport aux autres.
18. Dispositif selon la revendication 4, caractérisé en ce que pour augmenter la flexibilité entre deux rouleaux adjacents, les bords frontaux des rouleaux forment, avec l'axe de rotation (22), un angle qui est légèrement inférieur à 90°.
19. Dispositif selon la revendication 18, caractérisé en ce que l'angle compris entre le bord frontal et l'axe de rotation (22) se situe, pendant le fonctionnement, entre 85 et 89°.
EP87102941A 1986-03-14 1987-03-02 Dispositif pour appliquer une pression superficielle sur des pièces à travailler en mouvement de translation Expired - Lifetime EP0236905B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87102941T ATE62178T1 (de) 1986-03-14 1987-03-02 Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3608487 1986-03-14
DE19863608487 DE3608487A1 (de) 1986-03-14 1986-03-14 Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke

Publications (3)

Publication Number Publication Date
EP0236905A2 EP0236905A2 (fr) 1987-09-16
EP0236905A3 EP0236905A3 (en) 1989-04-05
EP0236905B1 true EP0236905B1 (fr) 1991-04-03

Family

ID=6296315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102941A Expired - Lifetime EP0236905B1 (fr) 1986-03-14 1987-03-02 Dispositif pour appliquer une pression superficielle sur des pièces à travailler en mouvement de translation

Country Status (9)

Country Link
US (1) US4807525A (fr)
EP (1) EP0236905B1 (fr)
JP (1) JPS62248601A (fr)
AT (1) ATE62178T1 (fr)
DE (2) DE3608487A1 (fr)
ES (1) ES2020954B3 (fr)
FI (1) FI86040C (fr)
IN (1) IN169321B (fr)
SU (1) SU1582981A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018130019A1 (de) 2018-11-27 2020-05-28 Azl Aachen Gmbh Vorrichtung zur pressenden Bearbeitung von Flachmaterial

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AU6595690A (en) * 1989-11-09 1991-05-16 Mcgrath Industries Limited Improvements in or relating to apparatus to facilitate movement of an object over a surface
CA2036755C (fr) * 1990-03-30 1998-06-02 Friedrich Bernd Bielfeldt Presse fonctionnant en continu
DE4141833C1 (en) * 1991-12-18 1993-02-04 G. Siempelkamp Gmbh & Co, 4150 Krefeld, De Continuous board production press - has heated top and bottom platens defining gap for steel press belts
DE29719897U1 (de) * 1997-11-08 1999-03-18 Eduard Küsters Maschinenfabrik GmbH & Co. KG, 47805 Krefeld Rolle für eine Rollenkette
DE19844166A1 (de) * 1998-09-27 2000-03-30 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse
JP4425000B2 (ja) * 2004-01-06 2010-03-03 株式会社ブリヂストン ゴム部材搬送装置、及びそれを有するゴム部材供給システム
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US8684075B2 (en) 2011-02-17 2014-04-01 Baker Hughes Incorporated Sand screen, expandable screen and method of making
US8664318B2 (en) 2011-02-17 2014-03-04 Baker Hughes Incorporated Conformable screen, shape memory structure and method of making the same
US9017501B2 (en) 2011-02-17 2015-04-28 Baker Hughes Incorporated Polymeric component and method of making
US9044914B2 (en) 2011-06-28 2015-06-02 Baker Hughes Incorporated Permeable material compacting method and apparatus
US8720590B2 (en) * 2011-08-05 2014-05-13 Baker Hughes Incorporated Permeable material compacting method and apparatus
US8721958B2 (en) 2011-08-05 2014-05-13 Baker Hughes Incorporated Permeable material compacting method and apparatus
DE202011105077U1 (de) * 2011-08-27 2012-11-28 Hans Hundegger Riemen- oder Kettenanordnung und Holzbearbeitungsanlage mit einer derartigen Riemen- oder Kettenanordnung
JP6334795B1 (ja) * 2017-09-05 2018-05-30 プロセスシステム株式会社 ダブルベルトプレス装置および誘導加熱プレスモジュール
CN109894511B (zh) * 2019-04-18 2021-08-20 青岛明珠钢结构有限公司 一种用于h型钢材的下料装置

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018130019A1 (de) 2018-11-27 2020-05-28 Azl Aachen Gmbh Vorrichtung zur pressenden Bearbeitung von Flachmaterial
WO2020108704A1 (fr) 2018-11-27 2020-06-04 Azl Aachen Gmbh Dispositif pour le traitement par pression de matériaux plats
DE102018130019B4 (de) * 2018-11-27 2021-02-25 Azl Aachen Gmbh Vorrichtung zur pressenden Bearbeitung von Flachmaterial
EP4105006A1 (fr) 2018-11-27 2022-12-21 AZL Aachen GmbH Dispositif pour le traitement par pression de matériaux plats

Also Published As

Publication number Publication date
DE3608487A1 (de) 1987-09-17
JPH0336637B2 (fr) 1991-06-03
FI871118A0 (fi) 1987-03-13
FI871118A (fi) 1987-09-15
EP0236905A2 (fr) 1987-09-16
ATE62178T1 (de) 1991-04-15
EP0236905A3 (en) 1989-04-05
DE3608487C2 (fr) 1993-01-21
DE3768988D1 (de) 1991-05-08
US4807525A (en) 1989-02-28
IN169321B (fr) 1991-09-28
ES2020954B3 (es) 1991-10-16
SU1582981A3 (ru) 1990-07-30
FI86040C (fi) 1992-07-10
FI86040B (fi) 1992-03-31
JPS62248601A (ja) 1987-10-29

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