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EP0150509A2 - Device for cutting foamed plastic - Google Patents

Device for cutting foamed plastic Download PDF

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Publication number
EP0150509A2
EP0150509A2 EP84116462A EP84116462A EP0150509A2 EP 0150509 A2 EP0150509 A2 EP 0150509A2 EP 84116462 A EP84116462 A EP 84116462A EP 84116462 A EP84116462 A EP 84116462A EP 0150509 A2 EP0150509 A2 EP 0150509A2
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting wires
wires
rods
cutting wire
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
EP84116462A
Other languages
German (de)
French (fr)
Other versions
EP0150509B1 (en
EP0150509A3 (en
Inventor
Siegmar Dipl. -Ing. Hühne
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.)
Muenchow und Huehne Maschinenbaugesellschaft Mbh
MUNCHOW und HUHNE MASCHINENBAUGESELLSCHAFT MBH
Original Assignee
Muenchow und Huehne Maschinenbaugesellschaft Mbh
MUNCHOW und HUHNE MASCHINENBAUGESELLSCHAFT MBH
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 Muenchow und Huehne Maschinenbaugesellschaft Mbh, MUNCHOW und HUHNE MASCHINENBAUGESELLSCHAFT MBH filed Critical Muenchow und Huehne Maschinenbaugesellschaft Mbh
Publication of EP0150509A2 publication Critical patent/EP0150509A2/en
Publication of EP0150509A3 publication Critical patent/EP0150509A3/en
Application granted granted Critical
Publication of EP0150509B1 publication Critical patent/EP0150509B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • B26F3/12—Severing by using heat with heated members with heated wires
    • 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
    • B26D1/547—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 wire-like cutting member
    • B26D1/553—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 wire-like cutting member with a plurality of wire-like cutting members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0267—Splitting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/283—With means to control or modify temperature of apparatus or work
    • Y10T83/293—Of tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/687—By tool reciprocable along elongated edge
    • Y10T83/6895—Plural reciprocable tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9292—Wire tool

Definitions

  • the invention relates to a device for cutting foam plastic bodies or the like corresponding to the preamble of claim 1.
  • Such a device is known from EP-OS 0,003,167 and belonging to the same patent family US - known PS 4,222,299.
  • the levels of the two cutting wire sets coincide in this device. ie all cutting wires are in the same plane.
  • the ends of the cutting wires of the two cutting wire sets are fastened to the two holding rods on the same jacket side, namely one end via coil springs and the other ends via longitudinally inextensible fastening means, the coil springs belonging to one cutting wire set to the one mounting rod and the other to the other cutting wire set associated fasteners are assigned to the other support rod.
  • the oppositely oscillating support rods then cause the opposing reciprocating movement of the two cutting wire sets with periodic change in the length of the coil springs, which avoids the exertion of undesirable forces and moments on the foam plastic body to be cut.
  • the low design effort is advantageous because a total of only two oscillating support rods and a correspondingly simple oscillation drive are required.
  • the coil springs which also serve to tension the cutting wires, break or wear relatively quickly as a result of their periodic change in length, in particular in the region of their fastening eyes at the ends.
  • a device for cutting a foam plastic body with a two is opposed to one another reciprocating cutting wire sets having known cutting wire system in which a plurality of cutting wires are attached with their ends to two co-oscillating support rods.
  • These two support rods are, however, only assigned to the cutting wires of the one cutting wire set, while for the cutting wires of the other cutting wire set two further, likewise oscillating mounting rods are provided, which, however, oscillate in opposite directions to the other two mounting rods of the first cutting wire set.
  • the invention has for its object a device of the type mentioned, d. H. to develop a device with only two support rods for two oppositely oscillating cutting wire sets so that a periodic change in length of the cutting wires exciting coil springs is eliminated.
  • the cutting wires of the two cutting wire sets are guided in a projection onto a plane perpendicular to the longitudinal direction of the holding rods, as it were in the form of the number 8, around the holding rods or between the holding rods.
  • the opposite movement of the cutting wires of the two cutting wire sets is hereby achieved in that the ends of the cutting wires of the one cutting wire set and the ends of the cutting wires of the other cutting wire set on the two holding rods each on their opposite jacket sides and the one ends of the cutting wires of each cutting wire set as well the other ends of the cutting wires of the respective cutting wire set are arranged on opposite jacket sides of the two oppositely oscillating mounting bars, so that the planes of the two cutting wire sets intersect between the two mounting bars.
  • the device shown in the figures is used to cut a foam plastic body 1, for example a cuboid polystyrene foam body into plates, with the aid of a cutting wire system.
  • the foam plastic body 1 is guided through the cutting wire system on a guide, not shown, which runs perpendicular to the drawing vein in FIG. 1 and is indicated by the arrow 2 in FIG. 2.
  • the cutting wire system has a plurality of cutting wires 5, 4. These cutting wires 3, 4 are in the longitudinal direction of two hal extension rods 5, 6 arranged at a predetermined distance from each other according to the plate thickness.
  • the two support rods 5, 6 are at a distance from one another which is greater than the width of the foam plastic body 1 to be cut and run parallel to one another and perpendicular to the cutting wires 3, 4. They can be seen in particular in FIG. 2, the cutting wires 3, 4 eccentrically attached with their ends to the two support rods 5, 5.
  • the cutting wires 3, 4 are each assigned to one of two cutting wire sets 30 and 40, in such a way that successive cutting wires 3, 4 each do not belong to the same cutting wire set 30 or 40.
  • a different assignment is also possible, it should only be noted that approximately one half of the cutting wires 3 belong to one cutting wire set 30 and the remaining cutting wires 4 belong to the other cutting wire set 40, and the distribution of the cutting wires 3. 4 to the two cutting wire sets 30, 40 is approximately symmetrical with respect to a center line running in half the length of the support rods 5, 6. Both cutting wire sets 30, 40 have their cutting wires 3, 4 in a plane 31 and 41, respectively.
  • the cutting wires 3, 4 of the two cutting wire sets 30, 40 can be moved back and forth in opposite directions in their longitudinal direction, that is to say the cutting wires 3 of the one cutting wire set 30, with the aid of an oscillating drive 7 which engages the holding rods 5, 6 and gives them an oscillating movement about their longitudinal axis always move in opposite directions to the cutting wires 4 of the other cutting wire set 40.
  • a renewed comparative examination of the two figures reveals that the planes 31, 41 of the two cutting wires sets 30, 40 between the support rods 5, 6, which oscillate in opposite directions to each other, cut at an acute angle, which will be made as small as possible under the given circumstances, so that in a first approximation of all the cutting wires 3, 4 being parallel can speak.
  • the one ends of the cutting wires 3 of the one cutting wire set 30 are guided to the front or lower casing side of the left holding rod 5 in FIG. 1, while the associated ends of the cutting wires 4 of the other cutting wire set 40 are guided to the opposite one, that is to say in FIG . 1 rear or in Fig. 2 upper side of the left support rod 5 are guided.
  • the arrangement of the ends of the cutting wires 3, 4 is correspondingly reversed, that is to say the ends of the first-mentioned cutting wire set 30 are on the rear side of the right holding rod 6 in FIG. 1 and the upper side in FIG. 2 and the end of the second-mentioned cutting wire set 40 is guided to the front or lower casing side of the right holding rod 6 in FIG. 1.
  • All cutting wires 3, 4 can be heated electrically, but the corresponding power connections are not shown.
  • at least one end of a cutting wire set 3 or 4 is connected to the associated holding rod 5 or 6 via a helical spring 8. It does not matter at which end this helical spring 8 is arranged or whether, as shown, two helical springs 8 are used, for example.
  • the ends of the cutting wires 3, 4 should in their part coming into contact with the respective holding rod 5, 6 consist of a rope section 9 which the increasing or decreasing looping of the occurring in the course of the oscillation Bracket rod 5 or 6 not hindered.
  • the two support rods 5, 6 are each made of a core rod 10 and two with this z. B.
  • the oscillation drive 7 for the two support rods 5, 6 is only indicated in Fig. 2. It consists of an eccentric drive 12, the connecting rod 13 of which is articulated to a radial lever 14 at one end of a holding rod 5.
  • the other mounting rod 6 is coupled in opposite directions to the mounting rod 5 by means of a belt (not shown) which wraps around the one end of both mounting rods 5, 6 in an eight shape.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

Eine Vorrichtung zum Zerschneiden eines Schaumkunststoffkörpers (4) oder dergleichen weist ein Schneiddrahtsystem auf, dessen Schneiddrähte (3, 4) in Längsrichtung von zwei einen Abstand voneinander aufweisenden, parallel zueinander und senkrecht zu den Schneiddrähten (3, 4) verlaufenden Halterungsstäben (5, 6) mit Abstand voneinander angeordnet sind. An den Halterungsstäben (5, 6) sind die Schneiddrähte (3, 4) mit ihren Enden exzentrisch befestigt und jeweils einem von zwei Schneiddrahtsätzen (30, 40) zugeordnet, die ihre Schneiddrähte (3 bzw. 4) in jeweils einer Ebene (31 bzw. 41) aufweisen und mit Hilfe eines an den Halterungsstäben (5, 6) angreifenden und diesen eine um ihre Längsachse oszillierende gegensinnige Bewegung erteilenden Oszillationsantriebes (7) in Längsrichtung ihrer Schneiddrähte (3, 4) gegenläufig hin- und herbewegbar sind. Bei einer solchen Vorrichtung entfällt eine periodische Längenänderung von die Schneiddrähte (3,4) spannenden Schraubenfedern (8), die unter diesen Umständen verhältnismäßig leicht brechen können, wenn sich die Ebenen (31, 41) der beiden Schneiddrahtsätze (30, 40) zwischen den beiden Halterungsstäben (5, 6) unter einem spitzen Winkel schneiden und die Enden der Schneiddrähte (3, 4) der beiden Schneiddrahtsätze (30, 40) jeweils auf die gegenüberliegenden Mantelseiten der beiden Halterungsstäbe (5,6) geführt sind.

Figure imgaf001
A device for cutting a foam plastic body (4) or the like has a cutting wire system, the cutting wires (3, 4) of which are in the longitudinal direction of two holding rods (5, 6) which are spaced apart, parallel to one another and perpendicular to the cutting wires (3, 4) ) are spaced from each other. The ends of the cutting wires (3, 4) are fastened eccentrically to the mounting rods (5, 6) and are each assigned to one of two sets of cutting wires (30, 40), each of which has its cutting wires (3 or 4) in one plane (31 or . 41) and with the aid of an oscillating drive (7) engaging the support rods (5, 6) and imparting an oscillating movement oscillating about their longitudinal axis in opposite directions in the longitudinal direction of their cutting wires (3, 4). In such a device there is no periodic change in length of the cutting wires (3, 4) tensioning coil springs (8), which can break relatively easily under these circumstances if the planes (31, 41) of the two cutting wire sets (30, 40) between the Cut the two support rods (5, 6) at an acute angle and the ends of the cutting wires (3, 4) of the two cutting wire sets (30, 40) are each guided on the opposite jacket sides of the two support rods (5, 6).
Figure imgaf001

Description

Die Erfindung betrifft eine dem Oberbegriff des Patentanspruches 1 entsprechende Vorrichtung zum Zerschneiden von Schaumkunststoffkörpern oder dergleichen.The invention relates to a device for cutting foam plastic bodies or the like corresponding to the preamble of claim 1.

Eine derartige Vorrichtung ist aus der EP-OS 0 003 167 und der zur selben Patentfamilie gehörenden US-PS 4 222 299 bekannt. Die Ebenen der beiden Schneiddrahtsätze fallen bei dieser Vorrichtung zusammen. d. h. alle Schneiddrähte liegen in ein und derselben Ebene. Die Enden der Schneiddrähte der beiden Schneiddrahtsätze sind an den beiden Halterungsstäben jeweils auf derselben Mantelseite befestigt, und zwar die einen Enden über Schraubenfedern und die anderen Enden über in Längsrichtung undehnbare Befestigungsmittel, wobei die zum einen Schneiddrahtsatz gehörenden Schraubenfedern dem einen Halterungsstab und die zum anderen Schneiddrahtsatz gehörenden Befestigungsmittel dem anderen Halterungsstab zugeordnet sind. Die gegensinnig oszillierenden Halterungsstäbe bewirken dann unter periodischer Veränderung der Länge der Schraubenfedern die gegenläufige Hin- und Herbewegung der beiden Schneiddrahtsätze, welche die Ausübung von unerwünschten Kräften und Momenten auf den zu zerschneidenden Schaumkunststoffkörper vermeidet. Vorteilhaft ist dabei der geringe konstruktive Aufwand, weil insgesamt nur zwei oszillierende Halterungsstäbe und ein entsprechend einfacher Oszillationsantrieb benötigt werden. In der Praxis beobachtet man jedoch den Nachteil, daß die auch der Spannung der Schneiddrähte dienenden Schraubenfedern infolge ihrer periodischen Längenänderung insbesondere im Bereich ihrer endseitigen Befestigungsösen verhältnismäßig schnell brechen bzw. verschleißen.Such a device is known from EP-OS 0,003,167 and belonging to the same patent family US - known PS 4,222,299. The levels of the two cutting wire sets coincide in this device. ie all cutting wires are in the same plane. The ends of the cutting wires of the two cutting wire sets are fastened to the two holding rods on the same jacket side, namely one end via coil springs and the other ends via longitudinally inextensible fastening means, the coil springs belonging to one cutting wire set to the one mounting rod and the other to the other cutting wire set associated fasteners are assigned to the other support rod. The oppositely oscillating support rods then cause the opposing reciprocating movement of the two cutting wire sets with periodic change in the length of the coil springs, which avoids the exertion of undesirable forces and moments on the foam plastic body to be cut. The low design effort is advantageous because a total of only two oscillating support rods and a correspondingly simple oscillation drive are required. In practice, however, the disadvantage is observed that the coil springs, which also serve to tension the cutting wires, break or wear relatively quickly as a result of their periodic change in length, in particular in the region of their fastening eyes at the ends.

Aus der DE-OS 28 05 625 und der zur selben Patentfamilie gehörenden US-PS 4 018 116 ist zwar auch schon eine Vorrichtung zum Zerschneiden eines Schaumkunststoffkörpers mit einem zwei sich gegenläufig hin- und herbewegenden Schneiddrahtsätze aufweisenden Schneiddrahtsystem bekannt, bei der mehrere Schneiddrähte mit ihren Enden an zwei gleichsinnig oszillierenden Halterungsstäbe befestigt sind. Diese beiden Halterungsstäbe sind aber nur den Schneiddrähten des einen Schneiddrahtsatzes zugeordnet, während für die Schneiddrähte des anderen Schneiddrahtsatzes zwei weitere, ebenfalls gleichsinnig oszillierende Halterungsstäbe vorgesehen sind, die jedoch zu den beiden anderen Halterungsstäben des ersten Schneiddrahtsatzes gegensinnig oszillieren.From DE-OS 28 05 625 and US Pat. No. 4,018,116 belonging to the same patent family, a device for cutting a foam plastic body with a two is opposed to one another reciprocating cutting wire sets having known cutting wire system in which a plurality of cutting wires are attached with their ends to two co-oscillating support rods. These two support rods are, however, only assigned to the cutting wires of the one cutting wire set, while for the cutting wires of the other cutting wire set two further, likewise oscillating mounting rods are provided, which, however, oscillate in opposite directions to the other two mounting rods of the first cutting wire set.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art, d. h. eine Vorrichtung mit nur zwei Halterungsstäben für zwei gegenläufig oszillierende Schneiddrahtsätze so weiter zu entwickeln, daß eine periodische Längenänderung von die Schneiddrähte spannenden Schraubenfedern entfällt.The invention has for its object a device of the type mentioned, d. H. to develop a device with only two support rods for two oppositely oscillating cutting wire sets so that a periodic change in length of the cutting wires exciting coil springs is eliminated.

Die erfindungsgemäße Lösung dieser Aufgabe ergibt sich aus dem Kennzeichen des Patentanspruches 1.The achievement of this object results from the characterizing part of patent claim 1.

Bei der erfindungsgemäßen Vorrichtung sind die Schneiddrähte der beiden Schneiddrahtsätze in einer Projektion auf eine zur Längsrichtung de Halterungsstäbe senkrechten Ebene gleichsam in Form der Zahl 8 um die Halterungsstäbe bzw. zwischen den Halterungsstäben geführt. Die gegenläufige Bewegung der Schneiddrähte der beiden Schneiddrahtsätze wird hierbei dadurch erreicht, daß die Enden der Schneiddrähte des einen Schneiddrahtsatzes und die Enden der Schneiddrähte des anderen Schneiddrahtsatzes an den beiden Halterungsstäben jeweils auf deren gegenüberliegenden Mantelseiten und die einen Enden der Schneiddrähte jedes Schneiddrahtsatzes sowie die anderen Enden der Schneiddrähte des jeweiligen Schneiddrahtsatzes an gegenüberliegenden Mantelseiten der beiden gegensinnig oszillierenden Halterungsstäbe angeordnet sind, so daß sich die Ebenen der beiden Schneiddrahtsätze zwischen den beiden Halterungsstäben kreuzen. Periodischer Längenänderungen von dadurch bruchgefährdeten Schraubenfedern bedarf es somit nicht mehr,In the device according to the invention, the cutting wires of the two cutting wire sets are guided in a projection onto a plane perpendicular to the longitudinal direction of the holding rods, as it were in the form of the number 8, around the holding rods or between the holding rods. The opposite movement of the cutting wires of the two cutting wire sets is hereby achieved in that the ends of the cutting wires of the one cutting wire set and the ends of the cutting wires of the other cutting wire set on the two holding rods each on their opposite jacket sides and the one ends of the cutting wires of each cutting wire set as well the other ends of the cutting wires of the respective cutting wire set are arranged on opposite jacket sides of the two oppositely oscillating mounting bars, so that the planes of the two cutting wire sets intersect between the two mounting bars. Periodic changes in length of coil springs that are at risk of breakage are therefore no longer necessary,

Vorteilhafte Ausgestaltungen der erfindungsgemäßen Vorrichtung ergeben sich aus den weiteren Patentansprüchen.Advantageous refinements of the device according to the invention result from the further patent claims.

Im folgenden wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden zeichnung näher erläutert. Es zeigen in schematischer Darstellung

  • Fig. 1 eine Seitenansicht eines Details einer Vorrichtung zum Zerschneiden eines Schaumkunststoffkörpers und
  • Fig. 2 eine Aufsicht auf den Gegenstand nach Fig. 1.
The invention is explained in more detail below with reference to a drawing which represents an exemplary embodiment. They show a schematic representation
  • Fig. 1 is a side view of a detail of a device for cutting a foam plastic body and
  • 2 is a plan view of the object of FIG. 1st

Die in den Figuren dargestellte Vorrichtung dient zum Zerschneiden eines Schaumkunststoffkörpers 1, beispielsweise eines quaderförmigen Polysttyrolschaumstoffkörpers in Platten, und zwar mit Hilfe eines Schneiddrahtsystems. Der Schaumkunststoffkörper 1 wird auf einer nicht dargestellten Führung durch das Schneiddrahtsystem hindurchgeführt, die in Fig. 1 senkrecht zur Zeicheneoene verläuft und in Fig. 2 durch den Pfeil 2 angedeutet ist.The device shown in the figures is used to cut a foam plastic body 1, for example a cuboid polystyrene foam body into plates, with the aid of a cutting wire system. The foam plastic body 1 is guided through the cutting wire system on a guide, not shown, which runs perpendicular to the drawing vein in FIG. 1 and is indicated by the arrow 2 in FIG. 2.

Das Schneiddrahtsystem weist eine Mehrzahl von Schneiddrähten 5, 4 auf. Diese Schneiddrähte 3, 4 sind in Längsrichtung von zwei Halterungsstäben 5, 6 mit entsprechend der Plattenstärke vorgegebenem Abstand voneinander angeordnet. Die beiden Halterungsstäbe 5, 6 weisen einen Abstand voneinander auf, der größer ist als die Breite des zu zerschneidenden Schaumkunststoffkörpers 1 und verlaufen parallel zueinander sowie senkrecht zu den Schneiddrähten 3, 4. sie man insbesondere in Fig. 2 erkennt, sind die Schneiddrähte 3, 4 mit ihren Enden exzentrisch an den beiden Halterungsstäben 5, 5 befestigt. Außerdem entnimmt man einer vergleichenden Betrachtung beider Figuren, daß die Schneiddrähte 3, 4 jeweils einem von zwei Schneiddrahtsätzen 30 bzw. 40 zugeordnet sind, und zwar in der Weise, daß aufeinanderfolgende Schneiddrähte 3, 4 jeweils nicht demselben Schneiddrahtsatz 30 bzw. 40 angehören. Grundsätzlich ist auch eine andere Zuordnung möglich, zu beachten ist nur, daß etwa die eine Hälfte der Schneiddrähte 3 dem einen Schneiddrahtsatz 30 sowie die restlichen Schneiddrähte 4 dem anderen Schneiddrantsatz 40 angehören und die Verteilung der Schneiddrähte 3. 4 auf die beiden Schneiddrahtsätze 30, 40 bezüglich einer in halber Länge der Halterungsstäbe 5, 6 verlaufenden Mittellinie in etwa symmetrisch ist. Beide Schneiddrahtsätze 30, 40 weisen ihre Schneiddrähte 3, 4 in jeweils einer Ebene 31 bzw. 41 auf. Mit Hilfe eines an den Halterungsstäben 5, 6 angreifenden und diesen eine um ihre Längsachse oszillierende Bewegung erteilenden Oszillationsantriebes 7 sind die Schneiddrähte 3, 4 der beiden Schneiddrahtsätze 30, 40 in ihrer Längsrichtung gegenläufig hin- und herbewegbar, d. h. die Schneiddrähte 3 des einen Schneiddrahtsatzes 30 bewegen sich stets gegenläufig zu den Schneiddrähten 4 des anderen Schneiddrahtsatzes 40.The cutting wire system has a plurality of cutting wires 5, 4. These cutting wires 3, 4 are in the longitudinal direction of two hal extension rods 5, 6 arranged at a predetermined distance from each other according to the plate thickness. The two support rods 5, 6 are at a distance from one another which is greater than the width of the foam plastic body 1 to be cut and run parallel to one another and perpendicular to the cutting wires 3, 4. They can be seen in particular in FIG. 2, the cutting wires 3, 4 eccentrically attached with their ends to the two support rods 5, 5. In addition, it can be seen from a comparative examination of both figures that the cutting wires 3, 4 are each assigned to one of two cutting wire sets 30 and 40, in such a way that successive cutting wires 3, 4 each do not belong to the same cutting wire set 30 or 40. In principle, a different assignment is also possible, it should only be noted that approximately one half of the cutting wires 3 belong to one cutting wire set 30 and the remaining cutting wires 4 belong to the other cutting wire set 40, and the distribution of the cutting wires 3. 4 to the two cutting wire sets 30, 40 is approximately symmetrical with respect to a center line running in half the length of the support rods 5, 6. Both cutting wire sets 30, 40 have their cutting wires 3, 4 in a plane 31 and 41, respectively. The cutting wires 3, 4 of the two cutting wire sets 30, 40 can be moved back and forth in opposite directions in their longitudinal direction, that is to say the cutting wires 3 of the one cutting wire set 30, with the aid of an oscillating drive 7 which engages the holding rods 5, 6 and gives them an oscillating movement about their longitudinal axis always move in opposite directions to the cutting wires 4 of the other cutting wire set 40.

Bei einer erneuten vergleichenden Betrachtung der beiden Figuren erkennt man, daß sich die Ebenen 31, 41 der beiden Schneiddrahtsätze 30, 40 zwischen den Halterungsstäben 5, 6, die gegensinnig zueinander oszillieren, unter einem spitzen Winkel schneiden, den man unter den jeweils gegebenen Umständen so klein wie möglich machen wird, so daß man in erster Näherung von einer Parallelität aller Schneiddrähte 3, 4 sprechen kann. Die einen Enden der Schneiddrähte 3 des einen Schneiddrahtsatzes 30 sind an die in Fig. 1 vordere bzw. in Fig. 2 untere Mantelseite des linken Halterungsstabes 5 geführt, während die zugeordneten Enden der Schneiddrähte 4 des anderen Schneiddrahtsatzes 40 an die gegenüberliegende, d. h. in fig. 1 hintere bzw. in Fig. 2 obere Mantelseite des linken Halterungsstabes 5 geführt sind. Am anderen, d. h. in den Figuren rechten Halterungsstab 6 ist die Anordnung der Enden der Schneiddrähte 3, 4 entsprechend umgekehrt, sind also die Enden des erstgenannten Schneiddrahtsatzes 30 an die in Fig. 1 hintere bzw. in Fig. 2 obere Mantelseite des rechten Halterungsstabes 6 und die Endes des zweitgenannten Schneiddrahtsatzes 40 an die in Fig. 1 vordere bzw. in Fig. 2 untere Mantelseite des rechten Halterungsstabes 6 geführt.A renewed comparative examination of the two figures reveals that the planes 31, 41 of the two cutting wires sets 30, 40 between the support rods 5, 6, which oscillate in opposite directions to each other, cut at an acute angle, which will be made as small as possible under the given circumstances, so that in a first approximation of all the cutting wires 3, 4 being parallel can speak. The one ends of the cutting wires 3 of the one cutting wire set 30 are guided to the front or lower casing side of the left holding rod 5 in FIG. 1, while the associated ends of the cutting wires 4 of the other cutting wire set 40 are guided to the opposite one, that is to say in FIG . 1 rear or in Fig. 2 upper side of the left support rod 5 are guided. On the other, that is to say the right-hand holding rod 6 in the figures, the arrangement of the ends of the cutting wires 3, 4 is correspondingly reversed, that is to say the ends of the first-mentioned cutting wire set 30 are on the rear side of the right holding rod 6 in FIG. 1 and the upper side in FIG. 2 and the end of the second-mentioned cutting wire set 40 is guided to the front or lower casing side of the right holding rod 6 in FIG. 1.

Sämtliche Schneiddrähte 3, 4 sind elektrisch beheizbar, die entsprechenden Stromanschlüsse sind jedoch nicht dargestellt. Um die Schneiddrähte 3, 4 unter Spannung zu halten, ist zumindest jeweils ein Ende eines Schneiddrahtsatzes 3 bzw. 4 über eine Schraubenfeder 8 mit dem zugeordneten Halterungsstab 5 bzw. 6 verbunden. An welchem Ende diese Schraubenfeder 8 jeweils angeordnet wird oder ob, wie dargestellt, beispielsweise mit zwei Schraubenfedern 8 gearbeitet wird, ist gleichgültig. Jedenfalls sollten die Enden der Schneiddrähte 3, 4 in ihrem mit dem jeweiligen Halterungsstab 5, 6 in Berührung kommenden Teil aus einem Seilabschnitt 9 bestehen, der die im Zuge der Oszillation auftretende zu- bzw. abnenmende Umschlingung des Halterungsstabes 5 bzw. 6 nicht behindert. Die beiden Halterungsstäbe 5, 6 sind jeweils aus einem Kernstab 10 und zwei mit diesem z. B. durch Verklebung verbundenen Halterungshalbschalen 11 aufgebaut, was aus Fig. 2 ohne weiteres ersichtlich ist. Der Oszillationsantrieb 7 für die beiden Halterungsstäbe 5, 6 ist nur in Fig. 2 angedeutet. Er besteht aus einem Exzenterantrieb 12, dessen Pleuelstange 13 an einen Radialhebel 14 am einen Ende des einen Halterungsstabes 5 angelenkt ist. Der andere Halterungsstab 6 ist über einen nicht dargestellten Riemen, der die einen Enden beider Halterungsstäbe 5, 6 achtförmig umschlingt, gegenläufig an den Halterungsstab 5 angekuppelt.All cutting wires 3, 4 can be heated electrically, but the corresponding power connections are not shown. In order to keep the cutting wires 3, 4 under tension, at least one end of a cutting wire set 3 or 4 is connected to the associated holding rod 5 or 6 via a helical spring 8. It does not matter at which end this helical spring 8 is arranged or whether, as shown, two helical springs 8 are used, for example. In any case, the ends of the cutting wires 3, 4 should in their part coming into contact with the respective holding rod 5, 6 consist of a rope section 9 which the increasing or decreasing looping of the occurring in the course of the oscillation Bracket rod 5 or 6 not hindered. The two support rods 5, 6 are each made of a core rod 10 and two with this z. B. constructed by gluing connected half-shells 11, which can be seen from Fig. 2 easily. The oscillation drive 7 for the two support rods 5, 6 is only indicated in Fig. 2. It consists of an eccentric drive 12, the connecting rod 13 of which is articulated to a radial lever 14 at one end of a holding rod 5. The other mounting rod 6 is coupled in opposite directions to the mounting rod 5 by means of a belt (not shown) which wraps around the one end of both mounting rods 5, 6 in an eight shape.

Claims (6)

1. Vorrichtung zum Zerschneiden eines Schaumkunststoffkörpers oder dergleichen, mit einem Schneiddrahtsystem, dessen Schneiddrähte in Längsrichtung von zwei einen Abstand voneinander aufweisenden, parallel zueinander und senkrecht zu den Schneiddrähten verlaufenden Halterungsstäben mit Abstand voneinander angeordnet sind, an welchen die Schneiddrähte mit ihren Enden exzentrisch befestigt und jeweils einem von zwei Schneiddrahtsätzen zugeordnet sind, die ihre Schneiddrähte in jeweils einer Ebene aufweisen und mit Hilfe eines an den Halterungsstäben angreifenden und diesen eine um ihre Längsachse oszillierende gegensinnige Bewegung erteilenden Oszillationsantriebes in Längsrichtung ihrer Schneiddrähte gegenläufig hin- und herbewegbar sind, dadurch gekannzeichnet, daß sich die Ebenen (31, 41) der beiden Schneiddrahtsätze (30, 40) zwischen den beiden Halterungsstäben (5, 6) unter einem spitzen Winkel schneiden und die Enden der Schneiddrähte (3, 4) der beiden Schneiddrahtsätze (30, 40) jeweils auf die gegenüberliegenden Mantelseiten der beiden Halterungsstäbe (5, 6) geführt sind.1.Device for cutting a foam plastic body or the like, with a cutting wire system, the cutting wires of which are arranged in the longitudinal direction of two spaced apart, parallel to each other and perpendicular to the cutting rods holding rods at which the cutting wires are attached eccentrically with their ends and are each assigned to one of two cutting wire sets, each of which has their cutting wires in one plane and can be moved back and forth in the longitudinal direction of their cutting wires with the aid of an oscillating drive engaging the holding rods and imparting an opposite movement oscillating about their longitudinal axis, characterized in that the planes (31, 41) of the two cutting wire sets (30, 40) between the two support bars (5, 6) intersect at an acute angle and the ends of the cutting wires (3, 4) of the two cutting wire sets (30, 40) each hurry to the opposite jacket sides of the two support rods (5, 6) are guided. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Schneiddrähte (3, 4) elektrisch beheizbar sind.2. Device according to claim 1, characterized in that the cutting wires (3, 4) are electrically heated. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zumindest jeweils ein Ende eines Schneiddrahtes (3, 4) über eine diesen spannende Schraubenfeder (8) mit dem Halterungsstab (5 bzw. 6) verbunden ist.3. Apparatus according to claim 1 or 2, characterized in that at least one end of a cutting wire (3, 4) via an exciting coil spring (8) with the Hal terungsstab (5 or 6) is connected. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Enden der Schneiddrähte (3, 4) in ihrem mit dem jeweiligen Halterungsstab (5 bzw. 6) in Berührung kommenden Teil aus einem Seilabschnitt (9) bestehen.4. Device according to one of claims 1 to 3, characterized in that the ends of the cutting wires (3, 4) in their with the respective support rod (5 or 6) coming into contact part consist of a rope section (9). 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die beiden Halterungsstäbe (5, 6) jeweils aus einem Kernstab (10) und zwei mit diesem verbundenen Halterungshalbschalen (11) aufgebaut sind.5. Device according to one of claims 1 to 4, characterized in that the two mounting rods (5, 6) are each constructed from a core rod (10) and two mounting half-shells connected to this (11). 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Oszillationsantrieb (7) aus einem an einem Ende eines der beiden Halterungsstäbe (5, 6) angreifenden Exzenterantrieb (7) und einem beide Halterungsstäbe (5, 6) gegenläufig kuppelnden Riemen besteht.6. Device according to one of claims 1 to 5, characterized in that the oscillation drive (7) from one at one end of one of the two support rods (5, 6) engaging eccentric drive (7) and one of the two support rods (5, 6) coupling in opposite directions Belt.
EP19840116462 1984-01-20 1984-12-28 Device for cutting foamed plastic Expired EP0150509B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3401910 1984-01-20
DE3401910 1984-01-20
DE3405252A DE3405252C2 (en) 1984-01-20 1984-02-15 Device for cutting up a foam plastic body
DE3405252 1984-02-15

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EP0150509A2 true EP0150509A2 (en) 1985-08-07
EP0150509A3 EP0150509A3 (en) 1986-04-23
EP0150509B1 EP0150509B1 (en) 1988-09-21

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US (1) US4608893A (en)
EP (1) EP0150509B1 (en)
DE (1) DE3405252C2 (en)

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CN103192418B (en) * 2013-03-06 2015-01-07 江太炎 Household electric filament and chip cutting machine

Also Published As

Publication number Publication date
EP0150509B1 (en) 1988-09-21
EP0150509A3 (en) 1986-04-23
DE3405252C2 (en) 1986-05-22
US4608893A (en) 1986-09-02
DE3405252A1 (en) 1985-10-24

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