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EP0246488B1 - Procédé et dispositif pour joindre des extrémités de placage - Google Patents

Procédé et dispositif pour joindre des extrémités de placage Download PDF

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Publication number
EP0246488B1
EP0246488B1 EP87106511A EP87106511A EP0246488B1 EP 0246488 B1 EP0246488 B1 EP 0246488B1 EP 87106511 A EP87106511 A EP 87106511A EP 87106511 A EP87106511 A EP 87106511A EP 0246488 B1 EP0246488 B1 EP 0246488B1
Authority
EP
European Patent Office
Prior art keywords
veneer
adhesive tape
stamping
teeth
veneer strip
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.)
Revoked
Application number
EP87106511A
Other languages
German (de)
English (en)
Other versions
EP0246488A2 (fr
EP0246488A3 (en
Inventor
Ludy Spoelders
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.)
Taf Technologie Anlagen- und Furnier-Import-Export AG
Original Assignee
Taf Technologie Anlagen- und Furnier-Import-Export AG
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
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Application filed by Taf Technologie Anlagen- und Furnier-Import-Export AG filed Critical Taf Technologie Anlagen- und Furnier-Import-Export AG
Priority to AT87106511T priority Critical patent/ATE85551T1/de
Publication of EP0246488A2 publication Critical patent/EP0246488A2/fr
Publication of EP0246488A3 publication Critical patent/EP0246488A3/de
Application granted granted Critical
Publication of EP0246488B1 publication Critical patent/EP0246488B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting

Definitions

  • the invention relates to a device for connecting veneer strip ends according to the preamble of patent claim 1 and a method for connecting veneer strip ends according to the preamble of patent claim 13.
  • DE-PS 25 23 203 discloses a punching tool with which complementary tooth profiles are punched on the ends of the veneer strips to be connected.
  • This previously known punching device has a punch knife and a counter knife, the punch tool being rounded at the base and at the opposite end of its teeth, and the teeth of the punch knife punching out the tooth gaps are wider at corresponding points than the teeth of the counter knife. Due to this intended difference in width and the tip rounding of the teeth, there is air between the punching knife and the counter knife, disadvantageously causing fibers to be drawn into the air gap and blurred punching lines. Another disadvantage is that the retraction of fibers in the counter knife results in high tool wear.
  • a disadvantage of this known device is that the calibration gap has to be adjusted by hand each time the type of veneer strip is changed.
  • the nominal thicknesses of conventional veneer strips range between 0.50 mm for walnut and 1.00 mm for spruce according to DIN 4079. According to this DIN 4079, deviations from the specified nominal thicknesses of ⁇ O, O3 mm are permissible. The resulting tolerance range of 0.06 mm makes fine calibration of the calibration shaft indispensable.
  • Another disadvantage of the known device is that it does not allow the connection of funnel strips of small thickness, for example of 0.2 mm, because of the intended mode of operation, since the effectiveness of the device depends on a certain longitudinal stability of the veneer strips .
  • the invention has for its object to provide a device and a method for connecting veneer strip ends; with or after which a visually closed veneer is quickly and reliably achieved in the connection area.
  • this object is achieved on the device side by the features characterized in patent claim 1. On the process side, the features characterized in patent claim 13 are provided to achieve this object.
  • Corresponding tooth profile connections which do not have a circumferential gap are produced by the form-fitting punching of intermeshing sharp-edged teeth or tooth gaps provided according to the invention which have fiber-free, straight cutting edges.
  • the reworking of the connection point does not lead to an undesired visualization of the funnel strip connection line as in the prior art.
  • the corresponding complementary, fluid design of the punching knives means that there is no drawing in of wood fibers. Rather, due to the intended, fluid, fast punching, there is advantageously no tool wear on the counter knife and a self-sharpening effect.
  • a major advantage of the unloaded veneer strip guide provided according to the invention is also that small veneer strip thicknesses, such as, for example, noble wood veneers with a thickness of up to 0.2 mm, can be quickly and safely connected to an absolutely closed veneer pattern without, as in the known device, transportation problems such veneer strip thicknesses exist.
  • small veneer strip thicknesses such as, for example, noble wood veneers with a thickness of up to 0.2 mm
  • a certain pressure is required for the complete nesting of the veneer strip ends, which only stronger profiles can tolerate unimpaired in the known design.
  • the invention advantageously provides for the veneer strip ends to be pushed into one another at an angle to one another up to the respective geometric tooth profile centers, with the veneer strip ends arranged above these at an angle then applying the adhesive tape from the adhesive tape pliers and then using a powerful hydraulic press stamp together with the interlocking ones Veneer strip ends on the mounting table is pressed evenly.
  • the concept of the connection of veneer strip ends according to the invention also has the advantage over the known device that a much faster process sequence can be implemented since no individual adjustment of the calibration shaft is required and because the arrangement and function of the adhesive tape pliers is comparatively low due to the elimination of three work cycles Time savings of up to 50% are possible.
  • a deflection bead is provided for the veneer between the connection area of the veneers and the respective punching devices, each deflection bead preferably having a deflection surface that extends into the movement path of the veneer end pushed out of the punching device up to approximately half the distance between the punching plane and protrudes from the mounting table.
  • the deflection of the veneer stiffeners from the punching plane is advantageously in a range of about 5 to 15%, and a rapid approach with a soft run-out is advantageously provided for pushing the tooth profiles together.
  • FIG. 1 An embodiment of a device according to the invention for connecting veneer strip ends is shown schematically in FIG. 1 as a side view and in FIG. 2 as a top view.
  • the device 10 has a covered base frame 12, to which a frame arrangement 14 is connected on the left in FIGS. 1 and 2, in which a take-up motor is provided in a manner not shown, which drives a take-up roll 16 in a clock-controlled manner, on which the veneer strips connected to one another Roll form are wound.
  • FIG. 1 and 2 show sections of veneer strips 18 and 20 to be connected to one another.
  • the end of the veneer strip 18 to be connected to the end of the veneer strip 20 is held on a tensioning slide 22 by means of a clamping element, preferably a clamping strip 24.
  • the end of the veneer strip 20 to be connected is held on a tension slide 26 by means of a clamping element, preferably a clamping strip 28.
  • the pressure duration of the terminal strips 24 and 28 is determined by the duration of the individual steps for connecting the ends of the veneer strips, the terminal strips 24 and 28 being actuated by control elements (not shown).
  • the tensioning slides 22 and 26 each have an exact guide in the base frame 12 and can be moved relative to one another in the course of the connection process by drive elements (not shown).
  • Their path of movement can be adjusted with an accuracy of one hundredth of a millimeter, and their respective movement sequence has a high-speed section and a gentle or crawling section in order to push the toothed ends of the veneer strips 18 and 20 into one another in a manner which will be described later.
  • the device 10 has a punching and connecting station 30, the essential elements of which are shown schematically in FIG. 1 in a cutout 32 of a covering 34 of the punching and connecting station 30.
  • An enlarged schematic representation of the main elements is shown in connection with steps of the connection process in FIGS. 3 to 5.
  • the punching and connecting station 30 contains a punching device 36 for the end of the veneer strip 18 and a punching device 38 for the end of the veneer strip 20.
  • the punching devices 36 and 38 are from a fastening table 40 arranged centrally between them evenly spaced.
  • a fleece pliers 42 are arranged as adhesive tape pliers, which are used to apply an adhesive tape in the form of a non-woven tape 44 from a storage housing 46.
  • the adhesive tape can consist of a paper adhesive tape, a transfer glue film on carrier paper or the like instead of a thermally activatable coated nonwoven tape. Only a lower part of the non-woven tape 44 is shown in FIG. 1 in order to be able to show the other elements of the punching and connecting station 30 more clearly.
  • a press bar 48 is arranged such that it can be moved vertically and can be acted upon by a hydraulically actuated press ram 50 in a clock-controlled manner, the hydraulic press ram 50 being able to be adjusted transversely to the veneer width in a manner not shown such that it always acts centrally on the press bar 48 .
  • the fleece pliers 42 are guided laterally in the punching and connecting station 30 and, prior to the lowering of the press beam 48, can be moved into a housing 52 arranged laterally on the device 10 with drive means, not shown, preferably pneumatic actuating pistons.
  • the main components of the punching and connecting station 30 are shown enlarged and schematically in FIG. 3.
  • the punching device 36 has a punch knife 54 and a counter knife 56.
  • the punching knives have a leading tip and can be positively guided together with their cutting edges.
  • the counter knife 56 is arranged stationary in the punching and connecting station 30, while the punch knife 54 can be moved vertically by means of a hydraulic working cylinder 58.
  • the punching device 38 has a punch knife 60 and a counter knife 62, the punch knife 60 being vertically movable with the aid of a hydraulic working cylinder 59.
  • the hydraulic actuation of the working cylinders 58, 59 is particularly due to the Extremely high and quickly available force, even with strong veneer and with full utilization of the entire width of the device, preferred over slow, limited in performance and expensive to operate pneumatic operation.
  • the punching knives 54 and 60 as well as the counter knives 56 and 62 have a sharp-edged punching profile and have mutually complementary, ie fitting tooth profiles, FIG. 6 showing a preferred tooth profile for a veneer strip end.
  • a deflection bead 64 or 66 is integrally formed on the punching knife 54 and on the punching knife 60 in the direction of the fleece pliers 42.
  • cooling tubes with air outlet openings are integrated in a manner not shown.
  • the deflection beads 64 and 66 approximately halfway between the punching devices 36 and 38 and the center of the fastening table 40, enter the movement paths of the veneer strips 18 and 20, which are predetermined by the punching planes of the punching devices 36 and 38, respectively 66 protrude with their tips from the punching plane in the direction of the plane determined by the upper side of the fastening table 40, whereby they extend approximately up to half the height difference between the punching plane and the fastening plane.
  • the deflection beads 64 and 66 have a gradually rounded deflection surface on their respective flanks pointing to the associated punching device 36 and 38, respectively.
  • the total height difference between the punching plane and the fastening plane of the fastening stitch 40 is approximately 8 to 10 mm, and the deflection surfaces of the deflection beads 64 and 66 ensure a flat deflection of the respective veneer strip ends advanced from the punching plane with an inclination of approximately 5 to 15%.
  • the fleece tongs 42 have rounded lateral deflection surfaces 68 and 70 which merge into one another.
  • a pliers mouth is designated, which for gripping the Fleece tape 44 is used.
  • the opening and closing movement of the forceps jaw 72 is controlled in such a way that the forceps mouth is first opened to receive one end of the fleece band 44 and then closed, and then after the fleece forceps have moved transversely out of the connection area, the fleece band is released after it has been separated.
  • a receiving device 74 is schematically shown above the press beam 48, in which the lower end of a piston rod 76 belonging to the hydraulic press ram 50 engages transversely displaceably.
  • the fastening table 40 has approximately the shape of a double-T profile and has a fastening surface 78 and lateral deflection surfaces 80 and 82.
  • the deflection surfaces 68 and 70 on the fleece pliers 42 and the deflection surfaces 80 and 82 on the fastening table 40 are inclined outwards and form a funnel-shaped shaft.
  • At least the underside of the press beam 48 has a permanent-glue-repellent surface, which is designed as a wear-resistant covering and shows no signs of loosening, bulging and tearing in use.
  • Fig. 3 the course of the deflected by the deflection beads 64 and 66 ends of the veneer strips 18 and 20 is indicated, the respective tooth profiles at the ends of the veneer strip ends 18 and 20 with their tips resting on the fastening surface 78 and up to the shown in Fig. 6 geometric center line at an obtuse angle are. 4, the fastening area is shown schematically, omitting the punching devices on both sides, in a state in which the fleece band 14 has been loosely placed on the intersecting tooth profiles by the fleece pliers 42 and the fleece pliers 42 have been retracted into the housing 52.
  • Fig. 3 the course of the deflected by the deflection beads 64 and 66 ends of the veneer strips 18 and 20 is indicated, the respective tooth profiles at the ends of the veneer strip ends 18 and 20 with their tips resting on the fastening surface 78 and up to the shown in Fig. 6 geometric center line at an obtuse angle are. 4, the fastening area is shown schematically, omitting the
  • FIG. 5 again shows only a section of the fastening area, with the press beam 48 being lowered from the hydraulic press ram 50 onto the fastening surface 78 of the fastening table 40, the interlocking tooth profiles being pivoted about their geometric center line in a planar engagement and with the superimposed Vleisband is pressed by means of the press beam 48.
  • a flatness of the veneer strips is achieved by the pressing action of the hydraulic ram 50, because a central pressure is applied. Tolerances in the veneer strip thicknesses are also compensated for and a high-quality veneer pattern is created, which is also retained during regrinding, pickling and dyeing, as indicated in FIG. 8.
  • the inventive design of the method and the device with an unloaded veneer strip guide makes the formation of a calibration shaft superfluous, and it also succeeds in the perfect, high-quality connection of the thinnest veneer strips, for example of fine wood veneers with a thickness of approximately 0.2 mm, with a time saving previously known methods up to 50%.
  • the procedure for connecting veneer stiffener ends is as follows. First, the ends of the veneer strips 18 and 20 are clamped in the associated clamping slides 22 and 26 by means of the clamping strips 24 and 28, the clamping slides 22 and 26 being different from one another are in the most distant position and the front end of the respective veneer strips lies in the region of the punching device 36 or 38. Then, using an automatic device cycle control, the hydraulic working cylinders 58 and 59 are actuated in order to produce tooth profiles which are complementary to one another at the respective veneer strip ends and which preferably have at least two different long teeth with the same flank angle and in which the tooth height is at least 3 times the width of the tooth base .
  • the tooth profile preferably has the shape shown in FIG. 6 with three teeth of different lengths.
  • the tensioning slides 22 and 26 are moved towards one another, with a rapid approach first and then a soft runout being provided in the last phase.
  • the respective veneer strip ends are first moved in the punching plane until they meet the deflection beads 64 and 66 and undergo a flat deflection, which leads to an inclination of the order of 5 to 15%.
  • the tooth profiles then step onto the fastening surface 78 of the fastening table 40 with the aid of the respective deflecting surfaces 68 and 80 or 70 and 82 and are pushed into one another there at an angle because of the exact respective travel adjustment of the tensioning slides 22 and 26 until the respective geometric ones Center lines G of the tooth profiles coincide.
  • the fleece pliers 42 are arranged above the fastening table 40, the end of the fleece band 44 being located in the pliers mouth 72.
  • the fleece tongs 42 are activated, the fleece pliers then moving 42 of the fleece band 44 from the storage housing 46 out of the fastening area into the housing 52.
  • the press beam 48 is acted upon by the powerful hydraulic press ram 50 in order to press the respective tooth profiles together with the fleece tape 44 placed over them onto the fastening surface 78 of the fastening table 40.
  • the underside of the press beam 48 has a permanent glue-repellent coating made of PTFE.
  • the duration of action of the hydraulic ram 50 is approximately 1.5 seconds.
  • the hydraulic press ram 50 moves back to its starting position after the end of the pressing process.
  • the fleece tongs 42 then return to their starting position above the fastening table 40.
  • the clamping strips 24 and 28 of the clamping slides 22 and 26 are already raised pneumatically and release the respective veneer strips.
  • the tensioning slides 22 and 26 also move away from each other into their outer end position.
  • the connected veneer strips are wound up on the take-up roll 16, a suitable control, for example a light barrier, ensuring that the free end of the veneer strip 20 then remains in the area of the punching device 36.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Claims (17)

  1. Dispositif d'assemblage des extrémités de bandes de placage, constitué :
    - de moyens de découpage à l'emporte-pièce (36, 38) permettant de réaliser, sur les extrémités de bandes de placage (18, 20), des profils dentés respectifs dont les formes s'épousent,
    - de deux chariots de serrage (22, 26) mobiles l'un vis-à-vis de l'autre et servant à maintenir les extrémités des bandes de placage et à les emboîter l'une dans l'autre,
    - d'une mâchoire (42) servant à poser une bande adhésive (44) et
    - d'un piston de presse (50) correspondant à la zone d'assemblage des extrémités des bandes de placage,
       caractérisé :
    - en ce que chaque moyen de découpage à l'emporte-pièce (36, 38) comprend une lame de découpage à l'emporte-pièce (54, 60) et une lame complémentaire (56, 62) comportant chacune des dents et entre-dents à arêtes vives dont les formes s'épousent par complémentarité,
    - en ce que la mâchoire de bande adhésive (42) comporte une face inférieure qui comprend des surfaces latérales de déviation (68, 70) et qui, lorsque les profits dentés sont emboîtés l'un dans l'autre, est disposée au-dessous du plan de découpage formé par les moyens de découpage à l'emporte-pièce (36, 38),
    - en ce qu'une table de fixation (40) est disposée au-dessous de la mâchoire de bande adhésive (42) et
    - en ce qu'il est prévu un piston de presse hydraulique (50) à l'aide duquel, après avoir été disposée au-dessus des extrémités des bandes de placage (18, 20) qui sont emboîtées l'une dans l'autre en faisant un certain angle vis-à-vis de la table de fixation (40), la bande adhésive (44) peut être appliquée sous pression, avec ces extrémités et d'une manière uniforme, sur la table de fixation (40).
  2. Dispositif suivant la revendication 1, caractérisé en ce qu'entre la zone d'assemblage des extrémités des bandes de placage (18, 20) et chacun des moyens de découpage à l'emporte-pièce (36, 38), il est prévu un bourrelet de déviation (64, 66) servant à déplacer l'extrémité de la bande de placage associée.
  3. Dispositif suivant la revendication 2, caractérisé en ce que chaque bourrelet de déviation (64, 66) comporte une surface de déviation qui, dans une trajectoire de déplacement, se trouvant dans le plan de découpage à l'emporte-pièce, des extrémités de la bande de placage (18 ou 20) qui sortent du moyen de découpage à l'emporte-pièce (36 ou 38), fait salle jusqu'à approximativement la moitié de la distance entre le plan de découpage à l'emporte-pièce et une surface de fixation (78) située sur la table de fixation (40).
  4. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que les surfaces de déviation (68, 70) de la mâchoire de bande adhésive (42) et des surfaces de déviation (80, 82) prévues sur les bords de la table de fixation (40) sont inclinées chacune vers l'extérieur.
  5. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la déviation des extrémités des bandes de placage (18, 20) vis-à-vis du plan de découpage à l'emporte-pièce a lieu avec une inclinaison d'approximativement 5-15 %.
  6. Dispositif suivant l'une des revendications précédentes, caractérisé en ce qu'à l'aide d'un réglage de la course des chariots de serrage (22, 26), les profils dentés situés aux extrémités des bandes de placage (18, 20), qui sont placés sur la table de fixation (40), sont agencés de façon à pouvoir être poussés l'un contre l'autre, en faisant un certain angle, jusqu'à l'axe géométrique moyen (G) de chaque profilé denté.
  7. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que, pour l'emboîtement des profils dentés l'un dans l'autre, il est prévu une approche rapide des chariots de serrage (22, 26) qui se termine en les laissant courir doucement sur leur erre.
  8. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la mâchoire de bande adhésive (42) est agencée de façon à pouvoir être rétractée sur le côté de la zone située au-dessus de la table de fixation.
  9. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que le piston de presse (50) exerce son effort sur une barre de pression (48), adaptée à la zone d'assemblage, de façon que sa position puisse être réglée transversalement par rapport à la largeur de chaque bande de placage.
  10. Dispositif suivant la revendication 9, caractérisé en ce que la barre de pression (48) comporte une surface de travail d'une nature anti-adhésive permanente.
  11. Dispositif suivant l'une des revendications 2 à 10, caractérisé en ce que chaque bourrelet de déviation (64, 66) est réalisé sous la forme d'un moyen de refroidissement à orifices de sortie d'air.
  12. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que chaque profil denté est composé, d'une manière régulière, d'au moins deux dents de longueurs différentes dont les angles des flancs sont identiques, la longueur de chaque dent étant égale à au moins trois fois la largeur de son pied.
  13. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la mâchoire de bande adhésive est réalisée sous la forme d'une mâchoire de non-tissé (42) prévue pour une bande adhésive constituée d'une bande de non-tissé (44).
  14. Procédé d'assemblage des extrémités de bandes de placage, selon lequel on découpe à l'emporte-pièce, sur les extrémités des bandes de placage à assembler, des profils dentés respectifs dont les formes s'épousent, on emboîte ces profilés dentés l'un dans l'autre et on procède ensuite à l'assemblage à l'aide d'une bande adhésive, à l'état comprimé,
       caractérisé :
    - en ce que les profils dentés respectifs dont les formes s'épousent sont découpés à l'emporte-pièce de façon à présenter des arêtes vives et à offrir une complémentarité de formes,
    - en ce que, pour être emboîtées l'une dans l'autre, les extrémités dentées des bandes de placage sont déviées, à l'aide d'une mâchoire de bande adhésive, du plan de découpage à l'emporte-pièce vers une table de fixation située parallèlement à ce plan de découpage,
    - en ce que la bande adhésive est alors placée par la mâchoire de bande adhésive au-dessus des extrémités des bandes de placage qui sont emboîtées l'une dans l'autre en faisant un certain angle et
    - en ce qu'ensuite, la bande adhésive est appliquée sous pression et d'une manière uniforme, avec les extrémités des bandes de placage emboîtées l'une dans l'autre, sur la table de fixation.
  15. Procédé suivant la revendication 14, caractérisé en ce que l'extrémité de chacune des bandes de placage est écartée librement du plan de découpage à l'emporte-pièce en passant sur un bourrelet de déviation.
  16. Procédé suivant l'une des revendications 14 et 15, caractérisé en ce que les profils dentés sont emboîtés l'un dans l'autre jusqu'à ce que les axes géométriques médians respectifs de ces profils dentés soient atteints.
  17. Procédé suivant l'une des revendications 14 à 16, caractérisé en ce que l'application uniforme de pression est réalisée à l'aide d'un piston de presse hydraulique dont la position est réglable vis-à-vis du milieu de la largeur des bandes de placage.
EP87106511A 1986-05-14 1987-05-06 Procédé et dispositif pour joindre des extrémités de placage Revoked EP0246488B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87106511T ATE85551T1 (de) 1986-05-14 1987-05-06 Vorrichtung und verfahren zum verbinden von furnierstreifenenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863616143 DE3616143A1 (de) 1986-05-14 1986-05-14 Vorrichtung und verfahren zum verbinden von furnierstreifenenden
DE3616143 1986-05-14

Publications (3)

Publication Number Publication Date
EP0246488A2 EP0246488A2 (fr) 1987-11-25
EP0246488A3 EP0246488A3 (en) 1989-11-15
EP0246488B1 true EP0246488B1 (fr) 1993-02-10

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ID=6300758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106511A Revoked EP0246488B1 (fr) 1986-05-14 1987-05-06 Procédé et dispositif pour joindre des extrémités de placage

Country Status (3)

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EP (1) EP0246488B1 (fr)
AT (1) ATE85551T1 (fr)
DE (2) DE3616143A1 (fr)

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
US5203950A (en) * 1988-05-11 1993-04-20 Ludy Spoelders Device for cutting according to a saw tooth pattern the extremities of veneer tapes between two pairs of upper and under knives
BE1002413A3 (nl) * 1988-05-11 1991-01-29 Spoelders Ludy Inrichting voor het in zaagtandvorm tussen twee paren van boven- en ondermessen uitsnijden en verlijmen van de einden van fineerbanden.
BE1010637A5 (nl) * 1996-09-20 1998-11-03 Spoelders Ludy Werkwijze en inrichting voor het transporteren en het opwikkelen van fineerbanden.
DE19958858C2 (de) * 1999-12-07 2003-11-20 Huser Maschb Gmbh Verfahren und Vorrichtung zum Herstellen von Furnierbahnen aus einzelnen Furnierabschnitten
BE1014641A5 (nl) * 2002-02-14 2004-02-03 Spoelders Ludy Werkwijze en inrichting voor het aaneenlijmen van de uiteinden van banden fineerhout.
CN108044729A (zh) * 2017-12-15 2018-05-18 朱雪梅 一种具有压料功能的自动拼板机

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Publication number Priority date Publication date Assignee Title
DE7326031U (de) * 1973-12-13 Gebr Halbert Streifenförmiges Furnierband
DE912146C (de) * 1940-12-31 1954-05-24 Heinrich Heissmann Verfahren zum Verbinden zweier Furnierkanten ohne Zugabe jeglicher Bindemittel
DE2523203C2 (de) * 1975-05-26 1984-04-26 Bernhard Huser Maschinenbau, 7834 Herbolzheim Stanzwerkzeug
DE2532428A1 (de) * 1975-07-19 1977-02-03 Armin Wiblishauser Furnierbahn und verfahren zu deren herstellung
US4421591A (en) * 1982-03-09 1983-12-20 Westvaco Corporation Veneer butt-end splicer

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DE3616143A1 (de) 1987-11-19
DE3616143C2 (fr) 1991-11-07
ATE85551T1 (de) 1993-02-15
DE3784097D1 (de) 1993-03-25
EP0246488A2 (fr) 1987-11-25
EP0246488A3 (en) 1989-11-15

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