FI116205B - Separation device in a gluing plant for wood pieces - Google Patents

Description

116205

SEPARATION EQUIPMENT FOR WOOD GLUES ADHESIVES

The invention relates to a separation apparatus according to the preamble of claim 1 in an apparatus for gluing elongated pieces of wood, the apparatus comprising an adhesive application unit and a press apparatus for clamping together the pieces of wood.

For example, in equipment used for the production of glued beams, the adhesive is applied by means of an adhesive on the surfaces to be placed against one another, whereupon the pieces to be glued together are pressed into a press and held until the adhesive is sufficiently dry. Drying times have been relatively long and relatively long presses have been required due to the long drying time.

US Patent No. 97959 discloses an apparatus for joining wood pieces such as glued beams and lamellar logs, wherein the adhesive 15 is applied to one surface of the wood pieces and wood pieces transported horizontally are heated from the opposite side by means of an IR radiator disposed thereon the adhesive surface of the pieces and the heated surface are juxtaposed and pressed together by a press. Only «· *; ; The 20 adhesive and the top forming members are only heated.

Both pieces of wood are subjected to both treatments.

In the apparatus of this publication, the planed pieces entering the length of the adhesive through the longitudinal conveyor are turned by the pivoting device on the adhesive side downwards on the transverse conveyor on the bumps, thus preventing the adhesive from becoming smudged. then the piece is turned and placed on the comb conveyor on the combs acting as separating elements, leaving an air gap between the pieces so that the adhesive does not yet react The pieces placed on the comb conveyor form a set which, when desired, is moved to the press either individually or in bundles.

The adhesive may also be a two-component adhesive having a resin component and a hardener component, wherein the resin component and the hardener component are applied separately, and wherein the pieces are joined together in a press by heating the pieces. Thereby, a resin component is applied to one surface and a hardener component 35 to another, as disclosed, for example, in F1 / 57969.

2 116205 It is an object of the present invention to provide a novel separating apparatus which can enhance the bonding of wood pieces. The separating device according to the invention has a vertical frame member, at least on one side of which is provided overlapping, separating members, on which 5 pieces of wood can be arranged, which is actuated vertically and horizontally by the driving device and a stop .

In one embodiment of the invention, the apparatus comprises a pushing device for pushing wooden pieces from the conveyor to the supports.

In another embodiment of the invention, at least one protrusion / recess for gluing the molded parts in the pusher part and at least one corresponding recess / protrusion in its response.

Details of the separation apparatus according to the invention are set forth in the appended claims.

The solution according to the invention achieves many advantages. The separation device according to the invention makes it possible to shorten the connection time, since the pieces of wood can be stacked on top of each other and dropped into one another relatively quickly. In addition, the installation is simple and takes up relatively little space due to the vertical structure. By positioning the stop arrangement even before the 20 presses, the dimensions of the press can be reduced, since a complete bundle can be fed into the presser jaw.

The invention will now be described in more detail by way of example! with reference to the accompanying drawing, in which Fig. 1 shows a separating apparatus according to the invention, "Fig. 2 illustrates another separating apparatus according to the invention, * · · * Fig. 3 shows a third separating apparatus according to the invention; to provide moldings.

For example, laminated logs are made of lamellae by means of a gluing apparatus with a separating apparatus according to the invention. The planed lamellae 1 are conveyed by a longitudinal conveyor 2 to an IR radiation heating apparatus, in which both connecting surfaces 1a, 1b of the lamellae are heated. The lamellae 1 are then guided to an adhesive, where adhesive is applied to the second joint surface 1a. The lamellae are then • stacked and pressed together in a vertical press to form a lamellar log.

Prior to the press, the lamellas 1 are arranged in a separating apparatus which provides an air gap between the lamellas 1 which prevents premature reaction of the adhesive.

3, 116205

The separation apparatus shown in Figure 1 has a vertical run bar 3 and, arranged on one side thereof, overlapping horizontal comb-like bases consisting of circular bars 4 or the like arranged at intervals. The body 3 can be raised / lowered and moved horizontally by means of its actuator.

The apparatus operates as follows: Each longitudinal conveyor 2 transported next to the separation apparatus 1 is pushed by successively arranged pushers 5 having a pusher member 6 at the moment to a platform 4 at the height of the longitudinal conveyor 2. (not shown) which stops the lamellae 1 as the body member continues to travel, whereby the lamellae fall over each other for compression.

In the apparatus of Figure 2, conveyor 2 and trays 4 are in alignment. Therein, the transfer of lamellae from the conveyor to the substrates is effected by the conveyor 15 positioned before the separation apparatus pushes the lamella 1 onto the rear substrate 4, after which the substrates are lifted so that the next lamina is transferred to the next lower substrate, etc. for.

In the apparatus of Figure 3, the trays 4 are disposed on both sides of the body 20 portion 3, whereby the separation apparatus can also be used in presses having two adjacent press units. In this case, the frame control: ·. laterally (arrow), according to which press unit each lamella is being moved.

»* *. ' Fig. 4 shows an embodiment in which the stops · ', ** pushers 5 and their stops 7 act as stops 5. The pushers 5 have a vertical pusher beam'; · * 8. The stop 7 is likewise a vertical bar. When the lamellas 1 are stacked on top of the bases 4, the pushers 5 are guided between the rods to push the lamellas 1 against the stops 7, whereby the pieces of wood stop between the pushers 5 and the stops 7, but the frame part 3 is conveyed forward. Thereafter, the compression between the pushers 5 and the stops 7 is reduced, whereby the lamellae 1 overlap into a bundle 13 on the support 12 for pressing by the upper button 10 of the press.

It is also possible with the apparatus of Fig. 4 to provide a shape * *; In this case, the pusher bar 8 of the pusher 5 has a protrusion 9 in the middle stages, and correspondingly a recess 11 corresponding to the desired position in the stop 7, whereby the bundle 13 assembled on the plane 12 has a step, in which one lap may be deeper than the others to achieve the desired shape as shown in FIG. 4.

The stacking of the bundles 13 on the substrate 12 can be performed either in the press or before the press. If the bundles 13 are assembled before the press, the base 12 5 extends outwardly from the press, at least as long as required by the length of the wood pieces, viewed from the inlet direction.

It will be apparent to one skilled in the art that the invention is not limited to the exemplary embodiments set forth above, but may be varied within the scope of the appended claims.

Claims (8)

Separating device in an adhesive equipment for elongated wood pieces (1), said sizing equipment comprising a coating unit for applying adhesive to at least one of the surfaces (1a, 1b) to be glued and a pressing device (11,12) with which the surfaces are to be adhesives are pressed together, and the separating device is provided with a body part and separating means with which the pieces of wood (1) are disassembled before being glued, and a stopping device with which the pieces of wood (1) can be stopped and arranged with the surfaces to be glued in front of each other. compressed, characterized in that the separating device comprises: a vertical body part (3) which is provided at least on one side with one another on top of each other, as a separating means (4) which can be placed on which the wooden pieces can be placed and which frame part can be mounted by means of a drive device. is moved vertically and horizontally, and a stop device (5, 7) with which the pieces of wood can be stopped so that they fall on top of each other to compress. Separating device according to claim 1, comprising a conveyor (2) for transporting the wood pieces, characterized in that the device comprises an ejector device (5) which projects the wood pieces from the conveyor to. . under the law. Separating device according to claim 1, comprising a conveyor (2) for transporting the pieces of wood, characterized in that the conveyor: · * and the substrate are placed one after the other when the pieces of wood are arranged from the conveyor, whereby the pieces of wood can be moved to the plan with the carrier. Separation device according to claim 1, characterized in that the support (4) is located on both sides of the body part. • 30 Separating device according to claim 2, characterized in that: ···. each ejector (5) is provided with a vertical beam-shaped ejector member (8) and, adjacent to each ejector, is provided a stop (7) against which the ejector presses the pieces of wood to stop and arrange with the surfaces to be glued * ··· 'center For eachother. Separating device according to claim 5, characterized in that the ejector part (8) for enabling bonding of mold pieces is provided with at least one projection / recess (9) and its housing with at least one / a corresponding recess / projection (11). . Separating device according to claim 1, characterized in that the separating device is provided with a flat support (12) on which the pieces of wood are arranged in a bundle (13) for pressing. Separation device according to claim 7, characterized in that the flat support (12) is arranged at least partially outside the pressing device from the direction of arrival, so that the pieces of wood are arranged in a bundle (13) before the pressing device. »· • · ♦» * f · I I