FI118758B - Building elements manufacturing line - Google Patents

Description

118758

Building elements manufacturing line

The invention relates to a method for manufacturing building elements, in particular small elements, according to the preamble of claim 1.

The invention relates to a production line for building elements, in particular small elements, according to the preamble of claim 3.

The invention also relates to a press according to claim 8 for joining parts of a building element.

A building element is used herein to mean a single structural element of a building component, such as 10 walls, ceilings or floors. Such building elements are matched and joined to form the actual complete structural member. The building element is thus particularly a small building element, that is, a small element, which is used to assemble interior and / or exterior walls, roof structures and / or floors. The advantage of small elements is that they are easily transportable from the factory to the site due to their relatively small size. It does not require a truck with a trailer or the like to transport large building elements, but can be carried out by a conventional truck or even by a large van. A further advantage is the simplicity and speed of installation. The small elements are usually joined together. i.e. at least from their long sides and thus form, for example, a partition or a midsole.

The building element is generally a rectangular, planar and flat part, with suitable joining surfaces at the edges to accommodate and join them. The building element is assembled from the panels on both sides of the panel and the panel-supporting and stiffening frame members arranged between them.

• ·. · * ·. The interior of the building element generally includes a filler which is a sound and / or heat insulating filler. The building element is generally made by joining the surface plates and frame parts, e.g. by gluing, after which they are pressed together and glued. the spice is allowed to dry or the bonding is dried.

• · • · • *

One such small element suitable for partition structures is disclosed in U.S. Patent No. 4,140,824. This small element is a lightweight partition element, • · 30 with special emphasis on soundproofing.

BACKGROUND OF THE INVENTION EP-1005980 is a prior art production line for prefabricated wall elements in which individual parts are glued together and pressed into the element. The pressing is carried out by means of a hydraulic press, in which the element is moved step by step between the press plates and at the same time subjected to high frequency (HF) radiation to activate the adhesive. After this, the element is further compressed in a so-called. cold press.

A disadvantage of the above-mentioned known manufacturing line is that there are several pressing steps involved. In addition, the hydraulic press is a large and cumbersome device that allows the elements of the elements to be pressed together relatively slowly. In addition, the pressing step involves activation of the adhesive in the HF field. It is also to be noted that the said. the production line is particularly suited for the manufacture of large building elements; it is too massive and slow for small element production.

The object of the invention is to eliminate the drawbacks associated with the manufacture of the above known known building elements, in particular small elements. It is also an object to provide a new method for manufacturing building elements, especially small elements, and a manufacturing line implementing the method. The invention also relates to a new press for joining parts of a building element.

The process for producing building elements, in particular small elements, according to the invention is characterized in what is stated in claim 1.

The production line according to the invention for the manufacture of building elements, in particular small elements, is characterized by what is claimed in claim 3.

The press according to the invention for joining parts of a building element is characterized by what is set forth in claim 8.

Preferred embodiments of the invention are disclosed in the dependent claim.

In the method according to the invention for the construction of building elements, in particular of small elements V, each building element is assembled from sheets and frame parts by grounding and compression. In accordance with the invention, ··· * “j - an adhesive layer, preferably a contact adhesive layer, is provided at predetermined locations on the body members of each sheet remaining inside the building element, · - the adhesive layer, preferably the contact adhesive layer, is likewise imaged on the joining surfaces of the body members which are fitted against the panels, 3 118758 and a second plate over the frame members facing the adhesive layers, whereupon the 5 - building element blank is pressed with a suitable predetermined force in a line perpendicular to the opposite side of the blank while moving the blank from the first end of the blank until the other end is reached, after which the blank is a pressure-tuskäsitelty formed and pre-bonded building element.

In the building element manufacturing line according to the invention, the building elements are assembled from sheets and frame parts. According to the invention, the manufacturing line comprises: a sheet feed station to which the sheets are preferably moved from a storage or a corresponding waiting position, a first adhesive applying station to which the sheets are moved from the feed station; and wherein a glue layer, preferably a contact adhesive layer, is provided on a conveyor for transferring discs with adhesive layers to a glue application gun; ** 20 - a second adhesive application station in which an adhesive layer, preferably a contact adhesive layer, is also provided on the joining surfaces of the body members, which are arranged against the panels, M · • · '* · assembly station for assembling the building element blank into which - the boards with the adhesive layer of earth are introduced by a conveyor and in which the building element blank is assembled by placing the body members on top of the first board facing the adhesive layers, possibly a filler part such as a porous thermal and / or: between the parts and another sheet over the body parts * ··: ... · glue layers facing each other, ♦ ·· • ** | - a press comprising two rollers, a drive and means for adjusting the distance of the rolls, one of which is connected to an drive, such as an electric: * ·, · 30 motor for rotating the roll, and in which the building element blank is fed. *. between the legs and compressing the building element blank with a suitable predetermined force while moving the blank from the first end of the blank 4 118758 until the other end of the blank is reached, after which the blank is press-formed into a pre-glued building element and a receiving station such as reception desk or conveyor , for receiving building elements from the press.

An advantage of the method and the production line according to the invention is that the building elements are manufactured quickly and efficiently. The gluing is preferably carried out with a contact adhesive, whereby the element blank passing through the press is a finished building element. No special glue drying and storage is required, the building element can be transported immediately from the production line to the installation site and the 10 building elements installed.

A further advantage of the invention is the press method and the press used therein.

The invention also relates to a press for pressing together parts of a building element. According to the invention, the press comprises two rolls, an actuator and means for adjusting the distance of the rolls, one of which is connected to an actuator, such as an electric motor, for rotating the roll, and wherein the building element blank assembled by gluing the plates and chassis is fed between the rolls by force and at the same time the blade is moved forward from the first end of the blank until the other end of the blank is reached, after which the blank is press-processed and formed into a finished: 1: 20 bonded building element.

··· · • 99 • · **; The press according to the invention, which is preferably part of a production line, is a relatively short press device with respect to the length of the production line, but at the same time efficient and fast.

• · · • 9

In the following, the invention and other advantages thereof will be described in detail with reference to the accompanying drawings 9 · 25, in which: · FIG. 1 illustrates, in cross-section and perspective, a building element; 999 · ;;; Fig. 2 is a schematic side view of a manufacturing line of building elements of the invention • 9 * ··· 1; 9 9 · 9 99! 1. Fig. 3 is a block diagram illustrating a method of making building elements according to the invention; 118758 Figure 4 is a sectional view A-A of the first adhesive application station in the production line of Figure 2; Figure 5A is a side view of another adhesive application station; Fig. 5B is a view from the end of another adhesive application station; Fig. 6 is a top plan view of a building element blank assembly station where one building element is assembled; Figure 7 is a front view of a press and a cross-sectional view B-B of the production line of Figure 2; and Figure 8 is a side view of the clamp of Figure 5.

10 In the figures, like parts refer to like parts.

A building element 10, in particular a small building element, is illustrated in Figure 1. The building element 10 is a straight, planar and flat part having at its edges suitable connection surfaces for fitting and connecting them. The building element in this example is rectangular, but other geometric shapes may be used depending on the application.

The length 1 of the building element 10 corresponds to the height of the room when the building element; By connecting 10 of you together, you can assemble a partition wall suitable for • • · *] * ··] inside the building. Its length 1 preferably ranges from 100 cm to 400 cm, but other lengths may be considered. The width k of the building element is preferably 20 standard dimensions regardless of the application. In this case, for example, the width is between 30 and 120 cm, preferably * 60 cm. The thickness p of the building element varies depending on the application.

It is, for example, between 5 and 30 cm, but other dimensions may also be an issue.

mmm m m • · * * ·

The building element 10 comprises panels on both sides thereof, i.e. surface plates L; L1, L2 and the frame supporting members R disposed between them and supporting the element 25; R1, R2. Further, the building element 10 preferably comprises a suitable »T filler element T, such as a sound and / or heat insulating porous filling.

»Lf * * * ·. * ··. Sheets L of building element 10; Depending on the application, L1, L2 are suitable building boards such as gypsum board, plywood board, wood board or the like. The plates are alternatively: · ** ϊ also a thin metal plate such as sheet metal or the like. The thickness of the discs: Λ: 30 can vary from a few millimeters to a few centimeters. Frame parts R of building element 10; Preferably, R1, R2 are wood, such as deciduous trees, or 6 118758 beams, birch beams or the like. Alternatively, the frame members are made of metal, such as support beams bent from a thin sheet of steel or the like. It will be appreciated that plate and frame construction solutions known per se, as well as other solutions than those described above, can be applied to both panels and frames.

In the example shown, the frame members R of the building element 10 comprise two long frame parts R1, R2 arranged in the longitudinal direction of the building element. Alternatively, the building element comprises one or more short frame members arranged transversely to the longitudinal direction of the building element, respectively. It is clear that other types of frame solutions may be considered, such as 10 diagonal elongated frame components, but their use is not common in most common building elements.

The filling element T of the building element 10 is preferably mineral wool, wood fiber insulating wool or similar porous material. In some applications of the building element, the filler T is made of polyurethane or similar plastic insulation. It is also mah-$ 15 to implement the building element 10 without the filler T.

The production line 1 of building elements 10, in particular small elements, according to the invention is illustrated schematically in Fig. 2 and Fig. 5A (and 5B). The building elements 10 are assembled on the production line 1 from the plates L and the frame parts R. The production line 1 comprises a sheet feed station 2, a first adhesive application station 3, a conveyor 4, a second adhesive application station 8, an assembly station -i: 5, a press 6 and a receiving station 7. - the structure and operation of the line. Reference is also made, in the same context, to the block diagram illustrating the method of the invention in Figure 3 and the method steps according to it.

The manufacture of the building elements 10 is started by moving the plates L; LI, L2 from storage * ·· * to disc feeder 2. This includes a flatbed conveyor for moving discs L. In this exemplary embodiment, the plates L are preferably placed in the feeder 2 longitudinally * * * *. *.

• * • · · * · *. Sheets L; In the first step, L1, L2 are moved from feeder station 2 to first

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· "! 30, in which, in a second step 32, an adhesive layer gl, g2 is arranged at predetermined locations on the body: * ·, · R; R1, R2. In this application, the glue layer gl, g2 is applied to the boards • · L; LI, L2 on the long sides of the long sides. The width of the glue layer gl, g2 is preferably • · somewhat of the body R; R1, R2 are wider than the width and the length of the adhesive layer corresponds to the length R of each body member. The adhesive layer gl, g2 is applied to the surface of the sheet L which remains inside the building element 10, i.e. the inner surface. Specifically, the plate L is moved upwardly on the inner surface, whereby the application of the adhesive layer is preferably carried out in an adhesive application station 3 comprising one or more syringe-5 syringes 3a, preferably arranged above the transfer and movement paths of the plates L as illustrated. In the third step, the sheets L; L1, L2 are received at the inlet end 41 of the conveyor 4 and moved by the conveyor 4 forward from the adhesive application station 3.

It is preferable that in the first adhesive application station 3 the conveyor 2a of the feeding station 2 extends into this position. Correspondingly, it is also advantageous that the inlet end 41 of the conveyor 4 is located in the adhesive application station 3. The ends of the conveyors 2a, 4 are relatively close to each other so that the plates L can be moved easily through the first adhesive application station 3. Alternatively, the first adhesive application station 3 should have its own conveyor for moving the plates L through the station. The disadvantage of these 15 alternative solutions is that it complicates the production line 1.

The first adhesive application station 3 comprises one or more adhesive syringes 3a, preferably arranged above the transfer and movement paths of the plates L and attached to the body of the adhesive application station. In turn, an adhesive pool 3b mm is provided below the transfer path of the plates L. to collect splashes of glue.

The second adhesive application station 8 of the production line 1 is preferably tracked near the exit end 42 of the conveyor 4 and near the assembly station 5 (cf. Figs. 5A and 5B).

At another adhesive application station 8, the body members R; R1, R2 for the bonding surfaces Ra are provided with L:., An adhesive layer gr as a fourth method step 34. R; R1, R2 joining surfaces Ra are surfaces arranged against plates L; L1, L2, for building: ***: 25 cents, especially for building element blank 10a.

The working glue application station 8 comprises a gluing table 8a arranged above the basin 8b. The gluing table 8a is provided with spaced spacers ί V, such as bars 8c of circular cross-section. Preferably, the adhesive application station 8 also includes one or more adhesive syringes 8d arranged movably (arrows) above the gluing table 8a and attached to a suitable frame). structure. The body members R are arranged on the gluing table 8a with the first connection surfaces upward and the adhesive applied as a first layer of adhesive gr to the connection surfaces by means of the syringe 8d. The body members R are rotated 180 degrees so that the second connection surfaces • · \ * ·· are upward and the adhesive is applied as a second layer of adhesive gr to the other connection surfaces 35 by the syringe 8d.

8 118758

As a fifth step, the Retouch parts R stolen with 35 layers of adhesive gr; R1, R2 will wait for a time t for the assembly step of the building element blank 10a, in this case the sixth step 36. The adhesive layers gr are then allowed to dry for a reason which will be explained below.

5 In assembly line 5 of the production line 1, the building element blank 10a is assembled from pre-handled sheets L, stolen by glue layers gl, g2, gr; L1, L2, and R; R1, R2 according to the sixth step or assembly step 36. Sheets L; L1, L2 are brought to the collecting station 5 by a conveyor 4, from whose outlet end 42 they are conveyed directly to the collecting station 5, in particular to the collecting table 51, as illustrated in FIG. The building element blank 10a is assembled on table 51 by placing the frame members R; R1, R2 of the first plate L; L1 over their long edges glue layers gl, g2, gr facing each other, a filler member T, such as a porous thermal and acoustic insulation member, sealed between the body members R and a second plate L; On top of the frame members R, the glue layers gl, g2 of the edges of the plate L and the glue layers gr of the frame members R oppose.

The press 6 of the production line 1 comprises two rollers 61, 62, an actuator 63, such as an electric motor, for rotating at least one roll 62 and means 64 for adjusting the distance between the rolls. The second roller 62 is coupled to the drive unit 63 by suitable power transmission means 65, such as a gear, belt or chain, for rotating the roller 62. The assembled building block blank 10a is fed between the press 6 te-ϊ. ·, The grooves 61, 62 in the seventh step, i.e. the pressing step, and the building blank 10a is compressed by a suitable predetermined force in a line A · perpendicular to C 10 At the same time, the blank 10a is moved forward D using roll 62 of the press 6 from • the first end 101 of the blank 10a until the other end 102 of the blank 10 is reached. The building element blank 10a is then press-processed and molded. * ... · made into prefabricated elements 10.

The means 64 of the press 6 for adjusting the distance and clearance v of the rollers 61, 62 preferably comprise, in the illustrated embodiment, two adjustable pressure medium cylinders 64a and two slides 64b or similar moving parts relative to the body 60. . The slides 64b are slidably arranged on the body 60, in particular on each end portion 60a of the body 60. The first roll 61 is supported by bearings on slides 64b. The pressure medium cylinders 64a, preferably the compressed air cylinders, are mounted vertically in the upper part of the end portions 60a of a size 60 »t * m 1. The piston rods 640 of the cylinders 64a are fastened at their ends to the slides 64b. By adjusting the cylinders 64b, the piston rods 640 and the slides 64b are moved and thus the position of the first roll 61 relative to the second roll 9 118758 62 and the clearance v can be adjusted. After the adjustment, the slides 64b are preferably lockable in position.

Preferably, the production line 1 also comprises a receiving station 7, such as a receiving table or conveyor, for receiving building elements 10 according to the eighth 5, i.e. receiving stage 38, from the press 6. From receiving station 7, finished building elements 10 are transferred to ready storage or directly transported to the installation site.

In a preferred embodiment of the invention, at least the feed station 2 of the plates L, the first glue spreading station 3, the conveyor 4 and the assembly gun 10 ma 5 of the production line 1 comprise two parallel processing line sections along which the plates L are transferred and processed. This is illustrated in the sectional view 4 of the gluing station 3. In such a production line, both plates L; L1, L2 are moved in parallel along the production line 1 all the way to the assembly station 5, where the blank 10a is assembled as described above.

The adhesive used in the first and second adhesive application stations 3, 8 to form the adhesive layers and to glue the parts of the building element 10 together is a contact adhesive. Contact adhesive is an adhesive solution that requires both surfaces of the parts to be joined together by adhesive to be treated to provide a secure adhesive bond. In addition, both adhesive surfaces must be almost completely dry before the parts and adhesive surfaces are pressed together. Suitable contact adhesives are, for example, solutions of synthetic rubbers.

··· · '«φ · ···. In a preferred embodiment of the method according to the invention, the plates L are moved, ···. in the third or transfer step 33, from the first adhesive application site 3 to the building element blank assembly site 5, a predetermined time t during which the solvents evaporate to a large extent from the adhesive, in particular from the contact adhesive, and the boards are ***** ready to be glued. For this purpose, a conveyor 4 with which sheets L; L1, L2, is moved forward from the first glue application station 3, ί. * Is a conveyor of speed and length sufficient to store the plates and for a predetermined time t, followed by plates L at the output end of conveyor 4 30; L1, L2 are ready for bonding.

i ···

• M

Alternatively, the plates L are conveyed by conveyor 4 to a suitable waiting position, from which they are: · · · · taken after a predetermined period of time to be processed at assembly station 5. However, this option is disadvantageous for a slow long conveyor; • »it requires a separate space and a waiting station for discs.

ίο 118758

Correspondingly, in the fifth step, body members R provided with an adhesive layer gr; R1, R2 must be treated. They are allowed to wait for a predetermined time t after the application of the adhesive layers in the second adhesive application station 8 or a waiting station arranged therewith so that the body members R are suitably ready for gluing 5 at the start of assembly element 36 of the building element blank 10a.

The invention is not limited solely to the above exemplary embodiment, but many modifications are possible within the scope of the inventive idea defined by the claims.

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Ml ·· · • a · • · • · · · · · 4 ··· M · • t I t · • I 414 • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 · ♦ · • · · · · · · · · · · · · · · · · · · · · · · · ·

Claims (8)

118758 π A method for manufacturing building elements, in particular small elements, wherein each building element is assembled from panels (L) and frame members (R) such that the panels (L; L1, L2) are provided on both sides of the building element and between them the parts (R; R1, R2) and any filler (T), which are joined together by gluing and then pressed together to form a finished building element, characterized in that: - the surface (L; L1, L2) of each plate (L; La) remaining inside the building element (10) is provided with a contact adhesive layer (gl, g2) at predetermined locations on the frame members (R1; R1, R2); - a contact adhesive layer (gr) is also provided on the joint surfaces (Ra) of the body members (R; R1, R2) which are fitted against the plates (L; L1, L2); - assembling the building element blank (10a) by placing the frame members (R; R1, R2) on top of the first sheet (L; L1) opposite the adhesive layers (gl, g2, gr), adapting any filler (T) such as porous heat and / or soundproofing member, sealed between the frame members and a second plate (L; L2) on top of the frame members facing the adhesive layers (gl, g2, gr), after which - the building element blank (10a) is pressed with a suitable predetermined butter; the club in a straight line perpendicular to each other (C - C) against the blank • · «!,., * 20 on its opposite sides while moving the blank forward (D) from the first end (101) of the blank to the other end (101) 102) is achieved, after which the preform (10a) is press-processed and formed into a finished construction element (10) glued together. A method according to claim 1, characterized in that, after arranging the adhesive layers, the sheets (L; L1, L2) and the body members (R1; R1, R2) are provided. .li * waits for a predetermined time (s) before performing the assembly of the blank (10a), during which time at least a large part of the solvents evaporate from the adhesive layers and the sheets and: the body parts are ready for gluing. • * · • • t · ·· · 3. Production line of building elements, in particular small elements, in which the building elements are assembled from plates (L) and frame parts (R) so that the plates (L; L1, L2): come on both sides of the building element and between them (R; • R 1, R 2) and any filler (T) with conveyors in the production line; a plurality of adhesive application stations for applying adhesive to the panels and body members; assembly station 12 118758 for assembling the building element blank from panels and frames; and a press, wherein the panels and frame parts of the building element blank are pressed together by a press to form a building element, characterized in that the manufacturing line (1) has: a board feed station (2) to which boards (L) are preferably moved from storage or 5; - a first adhesive application station (3) into which the sheets (L; L1) are moved from the feeding station (2) and wherein a contact adhesive layer (1) is provided on the surface (La) of each sheet (L; L1, L2) remaining inside the building element (10). gl, g2) at predetermined positions on the body members (R; R1, R2); 10. a conveyor (4) for transferring sheets (L; L2) with adhesive layers from the adhesive application station (3); - a second adhesive application station (8), wherein a contact adhesive layer (gr) is also provided on the joining surfaces (Ra) of the body members (R; R1, R2), which are arranged against the plates (L; L1, L2); 15. an assembly station (5) for assembling the building element blank (10a), into which the assembly plates (L; L1, L2) provided with an adhesive layer are introduced by a conveyor (4) and wherein the building element blank (10a) is assembled by inserting a frame. . parts (R; R1, R2) on top of the first plate (L; LI) facing the layers of glue (gl, g2, gr) facing each other, any filler (T) such as porous heat and / or acoustic • 9 -. * ··· * 20 sealing pieces, tightly spaced between body parts and another plate (L; L2) for body parts: · ί .: on top of adhesive layers (g 1, g2, gr) facing each other, ··· • * • · ·· - a press (6) comprising two rollers (61, 62), a drive (63) and means! (64) for adjusting the distance of the rolls, one of which (62) is connected to an actuator (63), such as an electric motor, for rotating the roll, and wherein, the building element blank (10a) is fed between the rolls (61, 62) and * "j the element blank (10a) is squeezed with a suitable predetermined force and • 9 * ··· * at the same time moving the blank (D) from the first end (101) of the blank until: the second end (102) is reached, after which the blank ··· · (10a) is press-processed and formed into pre-bonded building elements (10), and • 9: * · · · a receiving station (7), such as a receiving table or conveyor, a 10) for receiving from the press (6) Production line according to claim 3, characterized in that the second adhesive application station (8) is arranged in the immediate vicinity of the collecting station (5). Production line according to Claim 3 or 4, characterized in that the conveyor (4) for moving the sheets with adhesive layers (L; L1, L2) forward of the adhesive application station (3) is a conveyor with speed and length to which the sheets with adhesive layers are applied. storing a sufficient amount of the slabs for a predetermined time (s) during which the solvent and slabs volatile from the adhesive are ready for assembly of the building element blank (10a). Production line according to one of the preceding claims 3 to 5, characterized in that the glue application station (3, 8) comprises one or more glue syringes. Production line according to one of the preceding claims 3 to 6, characterized in that at least the sheet feed station (2), the first adhesive spreading station (3), the conveyor (4) and the collecting station (5) comprise two parallel processing line sections. A clamp for joining parts of a building element, comprising the panels (L; L1, L2) extending on both sides of the building element and the frame members (R1; R1, R2) arranged therebetween, and a possible filler part (T), which the parts are assembled together by adhesive layers to form a building element blank, after which they are to be pressed together to form a building element, characterized in that the "L1 20 press (6) comprises two rolls (61, 62), drive means (63) and means (64). •• f for adjusting the distance, one of the rollers (62) connected to the drive means (63), • 1 · * · | · 1, such as an electric motor, for rotating the roll, and wherein the plates (L; L1, L2) and the frame members (R; R1, R2) is assembled by gluing the assembled building element blank (10a) between the roll M · V (61, 62) and in which the building element blank (10a) is pressed with a suitable predetermined force while moving the blank The forward (D) of the blank from the first end (101) since, until the other end of the blank (102) is reached, which. ·. thereafter, the blank (10a) is press-processed and pre-bonded together »··». 1 1 ·. as a building element (10). · «· • 1 * ·« • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Ro · · ·;