WO1994027793A1 - Procede et appareil permettant de couper une nappe de laine minerale et systeme utilise pour ledit appareil - Google Patents

Procede et appareil permettant de couper une nappe de laine minerale et systeme utilise pour ledit appareil Download PDF

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Publication number
WO1994027793A1
WO1994027793A1 PCT/FI1994/000203 FI9400203W WO9427793A1 WO 1994027793 A1 WO1994027793 A1 WO 1994027793A1 FI 9400203 W FI9400203 W FI 9400203W WO 9427793 A1 WO9427793 A1 WO 9427793A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
wool web
motion
web
wool
Prior art date
Application number
PCT/FI1994/000203
Other languages
English (en)
Inventor
Henning Lauren
Original Assignee
Paroc Oy Ab
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
Priority claimed from FI930299U external-priority patent/FI871U1/fi
Priority claimed from FI932352A external-priority patent/FI93179C/sv
Application filed by Paroc Oy Ab filed Critical Paroc Oy Ab
Priority to AU66526/94A priority Critical patent/AU6652694A/en
Publication of WO1994027793A1 publication Critical patent/WO1994027793A1/fr
Priority to SE9504041A priority patent/SE508598C2/sv

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
    • 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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/12—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/18—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
    • 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
    • B26D1/56—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 involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/60—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 involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage
    • 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
    • B26D7/20—Cutting beds

Definitions

  • the present invention relates to a method for cutting a mineral wool web, in which method the wool web is cut by means of a cutting apparatus transversely with respect to the direction of motion of the wool web, while the wool web is fed forward on a conveyor.
  • Toothed saw blades have traditionally been used for cutting mineral wool webs. However, such saw blades bring about a considerable dust formation as well as an uneven cutting result.
  • One of the objects of the present invention is to provide a method by means of which the above-mention ⁇ ed drawbacks are avoided in a reliable manner and by the simplest possible means, irrespective of variations in the properties of the wool web, such as thickness, con ⁇ sistency and density thereof.
  • the basic idea of the method according to the invention is to provide an accurate and perpendicular cut across the whole width of the wool web under condi- tions mentioned above.
  • the cutting apparatus takes place preferably by adapting the operation of the cutting apparatus in the direction of motion of the wool web during the cutting automatically to the speed of the wool web.
  • the cutting apparatus is driven in a reciprocating motion in the longitudinal direction of the wool web, the forward motion taking place in the di ⁇ rection of motion of the wool web during the cutting and the backward motion bringing the cutting apparatus back to a position for next cutting.
  • the cutting of the wool web takes place alternatingly from one side of the wool web to the other.
  • the exactness of the size cutting is ensured by the fact that the cutting apparatus comprises a cutting blade supported on the upper side of the wool web as well as on the lower side of the wool web in such a way that the perpendicular cut across the whole width of the wool web is straight and clean.
  • the invention relates also to an apparatus for cutting a mineral wool web, comprising a cutting appara- tus for cutting the wool web transversely with respect to the direction of motion thereof, while the wool web is fed forward on a conveyor.
  • the apparatus is mainly characterized in that the cutting apparatus is displace- ably mounted on a bridge extending transversely across the wool web, that the bridge comprises a driving device connected to a control unit, which is connected to a measuring device measuring the speed of the wool web, and that the driving device is arranged to drive the bridge in the direction of motion of the wool web during the cutting in such a way that the motion of the bridge follows the speed of the wool web.
  • the driving device is arranged to drive the bridge in a reciprocating motion in the longitudinal di ⁇ rection of the wool web, the forward motion taking place in the direction of motion of the wool web during the cutting and the reverse motion bringing the bridge and the cutting apparatus mounted thereon back to a position for next cutting in accordance with a predetermined cut length of the wool web.
  • Attempts have also been made to eliminate the problem of tearing and oblique cutting, stated at the beginning and occurring both at length cutting and cross cutting of the wool web with subsequent waste of materi ⁇ al, by increasing the rotational speed of the knife blades used as cutting apparatuses, which has led to difficulties in overheating and cooling, respectively.
  • the present invention also relates to an arrangement by a cutting apparatus for a mineral wool web, the cutting apparatus comprising at least one ro ⁇ tating cutting blade for cutting the wool web while the wool web is fed forward on a conveyor.
  • a further object of the present invention is to provide an arrangement by a cutting apparatus for a wool web, by means of which arrangement the drawbacks mentioned above are avoided in a reliable manner and with the simplest possible means and also irrespective of variations in the properties of the wool web, such as thickness, consistency and density thereof.
  • This object is achieved by means of the arrangement ac ⁇ cording to the invention, which is mainly characterized in that the arrangement comprises support elements, sup ⁇ porting the cutting blade above the wool web as well as below the wool web.
  • the cut groove be ⁇ comes clean and straight and the cutting process dust- less. Accordingly, the products are also dustless.
  • the support elements preferably consist of sup ⁇ port rolls on each side of the cutting blade or of a groove, in which the cutting blade runs, e.g. in the form of one or two beams provided with slits.
  • the cutting blade preferably consists of a thin rotating knife blade having a sharpened edge of a hard metal element.
  • the thickness of the cutting blade is preferably about 2 to 5 mm, most suitably about 2,5 to 3 mm. Since the blade is supported both above and below the wool web, it can be made as thin as possible without beginning to wobble, i.e. to move laterally.
  • the invention provides a good working environ ⁇ ment from a hygienic point of view by minimizing the dust formation and waste of material and by the absence of additives.
  • Figure 1 shows the cutting apparatus for a mineral wool web according to the invention in a direc ⁇ tion opposite to the feeding direction of the wool web
  • Figure 2 shows the cutting apparatus from above
  • Figure 3 shows the apparatuses according to the invention in section along the line A-A in Figure 2.
  • the apparatus shown in Figure 1 and 2 is in ⁇ tended for cutting a mineral wool web transversely with respect to the direction of motion thereof.
  • the appara ⁇ tus comprises a stand 1 partly supporting a conveyor 2 for the wool web 5, preferably a multibelt conveyor, and partly a bridge 3 with a cutting apparatus 8 displace- ably mounted thereon.
  • the bridge 3 extends transversely across the conveyor 2, on which the wool web 5 is fed forward during the cutting.
  • the cutting apparatus 8 displaceable over the bridge 3 is mounted on a carriage 81 driven over the bridge 3 for instance by means of a conventional chain drive provided with a speed-con ⁇ trolled electromotor 82.
  • the bridge supported by support wheels 4 obtains its reciprocating motion F/R with re- spect to the longitudinal direction of the wool web 5 from a driving system preferably comprising a crank axle 6 and a speed-controlled electromotor 7.
  • Said driving system is coupled to a computer- controlled control unit, which is connected to a measur- ing device measuring the speed of the wool web 5.
  • the measuring device preferably consists of a belt carriage (not shown) measuring the speed and length of the wool web 5.
  • the belt carriage comprises a pulse transducer giving information to said control unit, which calcu- lates correct cutting interval for the products of inte ⁇ rest in each case.
  • the control unit adjusts the rotational speed of the crank axle 6 so that the motion of the bridge 3 in the direction of motion of the wool web 5 entirely corresponds to the speed of the wool web 5 during the cutting. Then it calculates the return speed for the bridge 3 so that the bridge is in correct position for next cutting again.
  • the cutting of the wool web 5 takes place alternatingly from one side of the wool web to the other.
  • the return speed for the bridge and, accordingly, the moment of the cuttings performed alternatingly in opposite direction transversely across the wool web are determined in accordance with a prede ⁇ termined cut length of the wool web.
  • the driving system giving the bridge its reciprocating motion F/R comprises a crank axle 6 and a speed-controlled electromotor 7 (not shown in Figure 3) coupled thereto.
  • the crank axle 6 comprises two crank arms 62 and 63 articulated with each other, the longer arm 63 being articulated 64 with the bridge 3 and the shorter arm 62 with an axle 65 driven by said speed-controlled electromotor.
  • the rotational speed of the crank axle 6 is synchronized with the speed of the wool web.
  • the rotational speed is determined according to desired cut length of the wool web 5 so that the bridge 3 with the cutting apparatus 8 mounted thereon is brought back to a posi ⁇ tion for next cutting in time, according to the above.
  • the carriage 81 and the cutting apparatus 8 are likewise coupled to said computer-controlled control unit for the control of their functions.
  • the actual cut- ting apparatus 8 mounted on the carriage 81 driven over the bridge 3 comprises a rotating cutting blade 9 with a driving device 10.
  • the cutting blade is preferably con ⁇ stituted by a thin knife blade comprising a sharpened edge of a hard metal element.
  • the cutting blade 9 is supported both above and below the wool web 5 by support elements 11, due to which the motion of the cutting blade is kept stable so that a straight and clean cutting of the wool web is obtained irrespective of the properties thereof, such as density, consistency and thickness.
  • the support elements are constituted for instance by support rolls on each side of the cutting blade or by a groove, in which the cutting blade runs.
  • the groove is produced by means of a beam provided with a slit, for instance.
  • the sup ⁇ port elements above the wool web 5 are constituted by support rolls 11, preferably two pairs of support rolls above the wool web, one pair on each side of a vertical centre line of the cutting blade, and below the wool web by a beam 11 provided with a slit.
  • belts 2' of the conveyor 2, i.e. the multibelt conveyor, are led via freely rolling reversing rollers 12 connected to the bridge 3 below the cutting blade 9 and the support ele ⁇ ment 11.
  • the reversing rollers 12 follow the motion of the bridge 3, which in turn follows the speed of the wool web 5, i.e. the conveyor 2.
  • the freely rolling reversing rollers 12 allow the return motion of the bridge 3 without affecting the feeding of the wool web 5, i.e. the motion of the conveyor belts 2'.
  • the arrangement according to the invention by a cutting apparatus intended for the wool web may also be applied preferably to a length cutting apparatus and a side cutting apparatus of the wool web.
  • the length cutting apparatus comprises a number of laterally ad- justable motor-driven cutting blades. For receiving possible lateral forces, the cutting blades are stepped in the longitudinal direction of the mineral wool web.
  • the rotational speed of the cutting blades is automatically adapted to the speed of the wool web.
  • Each cutting blade is mounted in a laterally displaceable carriage with associated support elements, adjusting screw and servo-motor. Through connection to the computer-controlled control unit, an automatic adjustment of the positioning of the cutting blades according to desired product widths is made possible.
  • the wool web is fed forward through the cutting apparatus on a chain-driven roller conveyor.
  • the speed and length of the wool web are measured by the belt carriage driven by the wool web.
  • the belt carriage com- prises a pulse transducer giving information to said computer-controlled control unit.
  • the sides of the wool web are cut clean and granulated preferably by two side cutting apparatuses, one on each side of the wool web and mounted on the same stand.
  • Each side cutting apparatus comprises a side cut ⁇ ting blade and a granulating blade, which cut out the side of the wool web and grind up the material into granulate at the same time.
  • the cutting apparatuses are provided with individual drives.
  • the cutting blades of the length cutting appa ⁇ ratus and the side cutting apparatus are supported both above and below the wool web by means of support ele ⁇ ments, preferably support rolls on both sides of the cutting blade, whereby preferably two pairs of support rolls are positioned above the wool web, one pair on each side of a vertical centre line of the cutting blade and one pair of support rolls below the wool web.
  • the thin knife blades are kept laterally steady, whereby they cut straight through the wool web also in case of variations in density and thickness of the wool web.
  • the arrangement according to the invention en ⁇ sures a clean and straight cut both in the longitudinal direction of the wool web and transversely thereto by keeping the cutting blade laterally stable by means of supports both above and below the wool web.
  • the method according to the invention and the used apparatuses ensure a perpendicular cut across the whole width of the wool web due to the fact that the cutting apparatus moves transversely across the wool web at the same time as it follows the direction of motion of the wool web. Since the cutting takes place alterna ⁇ tingly from one side of the wool web to the other, the motions are calm and soft and allow a high feeding speed for the wool web.
  • the thin cutting blade provided with support elements guarantees a straight and clean cut as well.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un procédé et un appareil conçus pour couper une nappe de laine minérale. La nappe de laine (5) est coupée transversalement par rapport à son sens de déplacement au moyen d'un appareil de coupe (8, 9, 10, 11), pendant que celle-ci avance sur un convoyeur (2). Ledit appareil de coupe est monté sur un pont (3) mû par un dispositif de commande (6, 7) dans le sens de déplacement de la nappe de laine (5) pendant la coupe de sorte que le déplacement de l'appareil s'effectue à la même vitesse que la nappe de laine, la coupe perpendiculaire s'effectuant sur toute la largeur de la bande de laine. L'invention concerne également un dispositif utilisé pour ledit appareil de coupe transversale ou longitudinale constitué d'éléments de support (11) montés au-dessus et au-dessous de la nappe de laine (5) supportant la lame tranchante (9) de l'appareil de coupe.
PCT/FI1994/000203 1993-05-24 1994-05-20 Procede et appareil permettant de couper une nappe de laine minerale et systeme utilise pour ledit appareil WO1994027793A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU66526/94A AU6652694A (en) 1993-05-24 1994-05-20 Method and apparatus for cutting a mineral wool web and arrangement by such a cutting apparatus
SE9504041A SE508598C2 (sv) 1993-05-24 1995-11-14 Förfarande och anordning för tvärskärning av en mineralullsbana

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI930299U FI871U1 (fi) 1993-05-24 1993-05-24 Anordning foer skaerning av en mineralullsbana
FI932352 1993-05-24
FIU930299 1993-05-24
FI932352A FI93179C (sv) 1993-05-24 1993-05-24 Förfarande och anordning för skärning av en mineralullsbana

Publications (1)

Publication Number Publication Date
WO1994027793A1 true WO1994027793A1 (fr) 1994-12-08

Family

ID=26159407

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1994/000203 WO1994027793A1 (fr) 1993-05-24 1994-05-20 Procede et appareil permettant de couper une nappe de laine minerale et systeme utilise pour ledit appareil

Country Status (2)

Country Link
AU (1) AU6652694A (fr)
WO (1) WO1994027793A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1319481A2 (fr) * 2001-12-14 2003-06-18 SILLER, Rudi Dispositif de coupe pour pain et produits alimentaires similaires
EP1356904A1 (fr) * 2002-04-26 2003-10-29 Paroc Group Oy Ab Méthode et dispositif pour le coupage d'une bande en mouvement
WO2005002810A1 (fr) * 2003-07-01 2005-01-13 Gruber & Co. Group Gmbh Dispositif pour tronçonner un profile en plastique
EP3124188A1 (fr) * 2015-07-30 2017-02-01 Magna Steyr Fuel Systems GesmbH Dispositif de coupe
CN107900758A (zh) * 2017-10-17 2018-04-13 安徽工程大学 一种金属复合板的车床高效率定长横切装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251255A (en) * 1963-08-28 1966-05-17 Wilson Eng Co Inc Lee Flying cutoff
FR2029340A1 (fr) * 1969-01-08 1970-10-23 Lanore Jacques
GB1457084A (en) * 1973-11-13 1976-12-01 Semperit Ag Apparatus for cutting material in transit on a conveyor belt
US4165665A (en) * 1976-12-23 1979-08-28 Fuji Photo Film Co., Ltd. Web cutting apparatus
US4350065A (en) * 1979-11-22 1982-09-21 Nusco Kabushiki Kaisha Reciprocating travelling shear
EP0220646A2 (fr) * 1985-10-26 1987-05-06 Hoechst Aktiengesellschaft Dispositif de coupe pour des produits laminés
EP0315601A2 (fr) * 1987-11-02 1989-05-10 Raffaele Lapiccirella Dispositif pour découper des panneaux en fibrociment ou en matériau similaire

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251255A (en) * 1963-08-28 1966-05-17 Wilson Eng Co Inc Lee Flying cutoff
FR2029340A1 (fr) * 1969-01-08 1970-10-23 Lanore Jacques
GB1457084A (en) * 1973-11-13 1976-12-01 Semperit Ag Apparatus for cutting material in transit on a conveyor belt
US4165665A (en) * 1976-12-23 1979-08-28 Fuji Photo Film Co., Ltd. Web cutting apparatus
US4350065A (en) * 1979-11-22 1982-09-21 Nusco Kabushiki Kaisha Reciprocating travelling shear
EP0220646A2 (fr) * 1985-10-26 1987-05-06 Hoechst Aktiengesellschaft Dispositif de coupe pour des produits laminés
EP0315601A2 (fr) * 1987-11-02 1989-05-10 Raffaele Lapiccirella Dispositif pour découper des panneaux en fibrociment ou en matériau similaire

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1319481A2 (fr) * 2001-12-14 2003-06-18 SILLER, Rudi Dispositif de coupe pour pain et produits alimentaires similaires
EP1319481A3 (fr) * 2001-12-14 2005-01-05 SILLER, Rudi Dispositif de coupe pour pain et produits alimentaires similaires
EP1356904A1 (fr) * 2002-04-26 2003-10-29 Paroc Group Oy Ab Méthode et dispositif pour le coupage d'une bande en mouvement
WO2005002810A1 (fr) * 2003-07-01 2005-01-13 Gruber & Co. Group Gmbh Dispositif pour tronçonner un profile en plastique
EP3124188A1 (fr) * 2015-07-30 2017-02-01 Magna Steyr Fuel Systems GesmbH Dispositif de coupe
CN106393224A (zh) * 2015-07-30 2017-02-15 麦格纳斯太尔燃油系统公司 切割装置
CN106393224B (zh) * 2015-07-30 2020-01-21 麦格纳斯太尔燃油系统公司 切割装置
CN107900758A (zh) * 2017-10-17 2018-04-13 安徽工程大学 一种金属复合板的车床高效率定长横切装置

Also Published As

Publication number Publication date
AU6652694A (en) 1994-12-20

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