FI116779B - Wood veneer sheets laying method used during fabrication of e.g. gluelam beam, involves moving veneer sheets to forward-feed position and sequentially lowering it to intermediate level and lower level - Google Patents

Abstract

The method involves separately moving wood veneer sheets (1) to a forward-feed position above a lay-up stack, in which the sheet leading edge is aligned at the desired laying point in the lay-up stack. From the forward-feed position, the venneer sheets are lowered to an intermediate level with its tailing edges being first and aligned with the lay-up stack. From the intermediate level, the veneer sheets are lowered to a lower level with the leading edge firs and with the tailing edge aligned with the lay-up stack. An independent claim is also included for wood veneer sheets laying apparatus.

Description

Method and apparatus for forming a veneer core

The invention relates to a method for forming a veneer core, as well as a device for implementing this method.

In the manufacture of veneer beams, the veneer pieces are formed by stacking individual glued veneer sheets in such a manner. From this lamination, the actual veneer bar is hot pressed, the veneer bar gets its final thickness measurement and the adhesive that binds it hardens.

In a continuous production line, the stack is straight 15 in successive bundles of latomus, such that the successive joints 3 of the veneers incoming in the bundles are positioned at different locations on different layers to avoid a sharp misalignment between the bundles of latomus; This is accomplished by forming a bundle of "si 20 nas" in which the veneer sheets 01 of each batt layer are shifted to a certain extent in the propagation direction of the latomus.

It is known that the type is carried out in such a way that the Ladot *. ; The 25 lu is driven with the lad <y jet running above the platform against the stopping response. Left1 * · * * · * · 'placed to stop the veneer in the intended barn: * · «···' where to place the veneer at the leading edge e <9 by reversing the delivery type stacker 1 m 9: .V 30. However, this build contains inaccurate] * * * 5 triggers, such as bouncing the veneer away from the stop response. This leads to nature! • · '* Ί · * i * m 11 1. ,. · 2 techniques according to technique, sr prior to lowering the veneer to the back; This method is practicable by a device consisting of a conveyor extending across the width of the veneer in a circumferential path and having a feed section extending over the length of the delta veneer and a conveyor consisting of two; a complete toothed belt or the like, and rods connecting the transverse direction of the jet. According to the invention, the conveyor makes sense to be in feed movement throughout the ladder 15, the conveyor has rods or the like waste for a period less than the length of the veneer to be loaded and the device has the remainder of the conveyor feed direction! lun stopping front edge response and pa! for the rest of the kee.

20

The invention will be explained in more detail with reference to the accompanying drawings, in which

/. Figure 1 shows a stacking device according to the invention

ψ * * 25 in its operating positions a-e, and «i» • ♦ «·· ♦

Figure 2 shows the play • * A-A across the stacking equipment.

♦ ♦ ♦ ♦ ♦ ♦ ♦ V * 30 The stacker according to Fig. 1 consists of a structure known per se, essentially horizontal, to form a continuous loop. The strap is placed at a parallel distance such that there is a clear distance between them to be stacked. The diverting wheels 8 are spaced sufficiently apart from the veneer 5, the stacking veneer being driven to support the bog of the conveyor 6.

Transverse brackets are provided between the straps for supporting the veneers. According to a particular aspect of the invention, these transverse support members are left for a period somewhat less than the length of the pink veneers. In the accompanying drawing, section 1 is shown as an empty dashed period. In addition to these 15, the intended operation of the device includes a leading edge stop 3 disposed at its rear end, as well as a veneer trailing edge stop 4 initially disposed within the device. The leading edge 3 is disposed over the conveyor 6.

The operation of this type of loading unit is illustrated in steps a) to e) of Figure 1. Upcoming • ·. ·. ·. 25 1 supply to stacking conveyor 6 must be synchronized • · that there is an intact k *** ,; across the top of the conveyor as the veneer advances • · .. supported by the stern towards the front stop 3.

The stop is positioned approximately where the front edge 30 is intended to be seated in the mold 2. When the front edge has reached the stop 3 ♦ «

Claims (4)

With its 4 feeding movements against the back 4 of the veneer and against the adjuster 4. The trailing edge stop 4 is positioned precisely at the front edge of the veneer 1 having an exact length 5; In exactly the right position, the latom is set up by the extension of the bait stroke of the core 6, whereby the leading edge of the veneer for the piercing, according to Figures 1, steps e), a) and b). 10 In this drop phase, a new Ladot lu is fed over the top section of the conveyor 6, and function j as described above. In order to form a staggered screed, the conveyor 6 must be moved forward a bit before the front of the next veneer; 15 kernels to latom. For the overall operation of the device according to the invention: it is advantageous that the veneers 1 for the stacking conveyor 6 are formed by rolls 9 having a slightly inclined 20 slope with respect to the feed direction on the side of the roll <*. is made to settle on the formation of the formation k t M /.·. 25 for its side edge. 1. A method for forming a veneer nucleus, in which method the individual veneers (l) are transported to the plane above the molding core (2). 5 2. Förfarande enligt patentkravet 1, känneteckna att i samband med nedfällningen account mellanplane 5 fanerarket med sin bakre kant i förhällande account A method according to claim 1, characterized in that the lowering unit is inclined at its intermediate edge relative to the flat plate. 5 3. Anordning för utförande av Förfarandet enligt kravet 1, Flaxen bestar av en Transportör (6) Med överstigande fanerarkets (1) bredd och anordnad 10 utmed en omloppsban, Fleece omloppsban et tirentligen lingering snacking on littering , och vilken transportör bestä i rörelseriktningen liggande kuggremmar (7) elle 15 de samt dessa i transportörens tvärriktning step de stänger eller motandvarande, tandem dnav transporteren anordnad att stock i rörelse im riktningen under hela staplingsskedet bort 20 avsnitt, som understiger längden av fanerarket s staplas, och att anordningen uppvisar i slutpart • «V *: transportörens matningsriktning et framkantsans: V: same as the motorserver setting slutpartiet av returr · * · et bakkantsanslag (4). * ·· 25 • « An apparatus for carrying out a method according to claim 1, consisting of a runner conveyor (6) extending over the veneer width, the runner 10 having a substantially horizontal feeder length over the veneer p and a reciprocating or reciprocating cycle (2). and the rods or the like joining these across the conveyor, feeling that the conveyor is arranged to be in feed movement throughout the stacking phase, that there are bars or the like omitted section below the length of the veneer to be loaded, and that (3) and, respectively, the rear edge stop (4) with the return stroke. • 1 • «· • M • ft: Y; The device according to claim 3, characterized in that it is arranged to move between each stack 25 in the firing direction for a predetermined stepped lat. to achieve. • »if« «« «• Ψ ft« ft ft · • · · 30 1. Förfarande för att bilda en fanerstapel, i vi «« «I r - ^ _J _ J 1 '1 t _ ^ ^ ^ i. A. 6 1 * ned nap ett mellanplan ovanför staplingsstället. 4. Anordning enligt patentkravet 3, kanknetecknad *** *. ···. att den är anordnad att röra sig mellan shade st * * * skede i matningsriktningen en bestämd sträcka fö. . ästadkomma en trappformig stapling. • e • · »* * ♦ ♦ ♦ ♦»