EP1568454A1

EP1568454A1 - Procedure and device for producing wood pieces with L-shaped cross section

Info

Publication number: EP1568454A1
Application number: EP05101236A
Authority: EP
Inventors: Alduilio Becci; Roberto Becci
Original assignee: Flli Becci SNC Di Becci Roberto & C
Current assignee: Flli Becci SNC Di Becci Roberto & C
Priority date: 2004-02-25
Filing date: 2005-02-18
Publication date: 2005-08-31

Abstract

Procedure to increase production of angular faces comprising overlaying of at least two boards (4, 5), longitudinal application on the relevant twin frames of a single edging (10, 11) protruding above the opposing faces, cutting of the edging (10, 11) along the surface of the overlaid boards (4, 5), cutting through the middle of the boards (4, 5) perpendicularly to the surface of the overlaid boards, or the upper board (5) turned over 180° and with such orientation positioned in sequence with the lower board (4) on the same conveying line (2), cutting through the middle of the boards (4, 5) along the feed axis, separation of the two strips (4A, 4B, 5A, 5B) thus obtained along the axis, relevant milling to achieve shaped faces (22), relevant covering with a single sheet (24) of coating material, gluing of the coating material (24) with simultaneous longitudinal cutting of said material on the two faces (22); relevant implementation device comprising realization of in-line means for automatic implementation of the procedure.

Description

DETAILED DESCRIPTION Technical scope

The faces of interior door and window frames are normally composed of strips of wood or a wood surrogate fitted on a frame and orthogonally joined by edgings in wood or a wood surrogate, protruding above one side in such a way as to form, as a whole, an essentially L-shaped cross-section.

These faces are produced by longitudinally gluing an edging to a strip of wood.

Purposes of the invention

The main purpose of this invention, within this scope, is to provide a method and relevant implementation device aimed at accelerating the production process of said faces in wood and/or wood surrogate with L-shaped cross section.

Another purpose of this invention is to in any case provide a method and relevant implementation device to obtain faces in wood and/or surrogate wood with L-shaped cross-section in an as effective and immediate as possible manner by longitudinal realization of boards with side leaves fed in succession.

Other purposes of this invention are to achieve the preceding purposes and at the same time arrive at a method and relevant implementation device suited to:

achieve the maximum possible ease of implementation;

achieve the largest possible modularity and variety of application as well as easy adaptability to the existing accessories;

allow immediate implementation without disrupting operation with implications of contraindication downstream and upstream of the innovative scope;

in any case and in whatever way achieve a simple and effective method and relevant implementation device, safe in operation and at as low as possible cost in consideration of the results practically achieved therewith.

Summary extract of the solution concept

These and other purposes are all achieved with the procedure to increase production of angular faces according to this invention, comprising overlaying of at least two boards (4, 5), longitudinal application on the relevant twin frames of a single edging (10, 11) protruding above the opposing faces, cutting the edging (10, 11) along the surface of the overlaid boards (4, 5), cutting through the middle of the boards (4, 5) perpendicularly to the said overlaid boards, or with the upper board (5) turned over 180° and with such orientation positioned in sequence with the lower board (4) on the same conveying line (2), cutting through the middle of the boards (4, 5) along the feed axis, separation of the two strips (4A, 4B, 5A, 5B) thus obtained along the axis, relevant milling to obtain the shaped faces (22), relevant covering with a single sheet (24) of coating material, gluing of the coating material (24) with simultaneous longitudinal cutting of said material on the two faces (22); as well as with the relevant implementation device comprising feeding means (6) for at least two overlaid boards (4, 5) between the lateral longitudinal application means on the relevant twin frames of a single edging (10, 11) protruding above the opposing faces, cutting means (14) to cut the edging (10, 11) along the surface of the overlaid boards (4, 5), cutting means to cut through the middle of the boards (4, 5) perpendicularly to the overlaying surface, or means where the upper board (5) is turned over 180° and with such orientation is positioned in sequence with the lower board (4) on the same conveying line (2), cutting means (15) to cut through the middle of the boards (4, 5) along the feed axis, separating means (19) of the two strips (4A, 4B, 5A, 5B) thus obtained along the axis, relevant milling means (21) to obtain faces (22) in the desired shape, relevant coating means with a single sheet (24) of material, gluing means (25) of the coating material (24) with simultaneous longitudinal cutting means (26) of the said material on the two faces (22).

Identification of attached drawings

Additional features and advantages of the procedure according to this invention will appear more evident from the following detailed description of a chosen but not exclusive form of realization of the relevant implementation device represented purely by way of example and not limited to the seven plates attached, where:

Figure 1A shows a prospective view of a first alternative of the device for implementation of the procedure to increase production of strips with orthogonal side leaf on a frame;

Figure 1B shows a prospective view of a second alternative for implementation of the procedure to increase production of strips with orthogonal side leaf on a frame;

Figures 2 through 7 show as many implementation phases of the procedure according to this invention.

Static description of the implementation example

With reference to the above figures, in particular Figure 1, 1 indicates a schematically illustrated machine as a whole for implementation of the method according to this invention, comprising a sliding surface (2) between flaps (3) for a pair of overlaid boards (4 and 5), fed in whatever known way, translated at the tail end by a pair of pushers (6), driven in whatever known way, and held in place at the top by a train of guide presser rollers (7).

The overlaid boards (4 and 5) are to be understood as boards in any wood or wood surrogate material, for example so-called "MDF", acronym for "medium density fibreboard", or triturated recycled wood fibre paste, mixed with resins, pressed and dried.

In the order of the forward direction of the overlaid boards (4 and 5) on the sliding surface (2), indicated by the arrow, the device (1) comprises the following additional elements and operating devices, to be understood adequately supported and anchored, as well as motor-driven in whatever known way suited to the purpose:

a pair of vertical mills (8) to smooth the twin frames of the overlaid boards (4 and 5);

a pair of gluing devices (9) to spread a layer of appropriate glue on the twin frames of the overlaid boards (4 and 5);

symmetrical feed channels for a pair of side edgings (10 and 11), fed in whatever appropriate way on the twin frames of the overlaid boards (4 and 5); said side edgings (10 and 11) protruding above the opposing faces of the overlaid boards (4 and 5), as well as realised in any wood and wood surrogate material;

two pairs of adhesion pressers (12) for the side edgings (10 and 11) on the twin frames of the overlaid boards (4 and 5);

two pairs of fixed horizontal mills (13) to smooth the edges of the side edgings (10 and 11);

a first pair of mobile horizontal mills (13A) appropriate to lead for a stretch the forward movement of the side edgings (10 and 11) to smooth the respective heads with respect to the overlaid boards (4 and 5);

a second pair of mobile horizontal mills (13B) appropriate to track for a stretch the forward movement of the side edgings (10 and 11) to smooth the respective tails with respect to the overlaid boards (4 and 5);

a pair of circular saws (14) with vertical rotation axis to cut the side edgings (10 and 11) along the surface of the overlaid boards (4 and 5) thus forming the

side leaves

10A and 10B as well as 11A and 11B;

a circular saw (15) with horizontal rotation axis to cut through the middle of the overlaid boards (4 and 5) perpendicularly to the surface of the overlaid boards thus forming the

strips

4A and 4B as well as 5A and 5B.

Or, as alternative to such position of the circular saw (15) [see Figure 1B], a turnover station (16) [see Figure 2] where the upper board (5) with relevant side leaves (10A and 11A) is turned over 180° by appropriate means, not illustrated, suited to the purpose, and with such orientation is positioned in sequence with the lower board (4) with relevant side leaves (10B and 11B) on the conveying line (2);
a cutting station (17) [see Figure 3] where the boards (4 and 5) are cut by means of a circular saw (15) with horizontal rotation axis thus forming the

strips

4A and 4B as well as 5A and 5B;
a separating station (18) [see Figure 4] where the

strips

4A and 4B as well as 5A and 5B are separated by means of progressive separating wedges (19) introduced between the

strips

4A and 4B as well as 5A and 5B;
a shaping station (20) [see Figure 5] where the

strips

4A and 4B as well as 5A and 5B are shaped by means of mills (21) which model the faces (22).
a coating station (23) [see Figure 6] where the faces (22) are covered by means of a single sheet of coating material (24), for example, plastic or paper of known type, if necessary wound on a reel not illustrated, supplied in known manner with a film of glue and cut crosswise to the desired size, for example, by a laser cutting device, schematically illustrated and indicated with 27;
within this framework, the sheet of coating material (24) is made to adhere to the faces (22) by means of pressers (25) and simultaneously separated by a cutter (26) which cuts through the middle and separates the two strips respectively dedicated to each of the two faces (22) which are thus perfectly trimmed and finished (see Figure 7).

Dynamic description of the implementation example

Having thus ended the static description of the chosen realization example of the device for implementation of the method according to this invention, in the following a dynamic description is given, i.e. the relevant production and operating procedure:

The overlaid boards (4 and 5) can be fed on the sliding surface (2) in whatever way suited to the purpose and there pushed at the tail by the pushers (6), for such a purpose driven under the sliding surface (2), for example by means of assembling a multiplicity of pushers suitably interspaced on motor-driven chains.

On the two sides of the overlaid boards (4 and 5) the vertical mills (8) smooth the relevant twin frames, where the gluing devices (9) immediately spread a layer of appropriate glue to which the edgings (10 and 11) are made to adhere by means of the pressers (12) as well as trimmed at the edges by the fixed horizontal mills (13).

At the same time, in an appropriate phase, the first pair of mobile horizontal mills (13A) for a stretch leads the forward movement of the side edgings (10 and 11) smoothing the respective heads with respect to the overlaid boards (4 and 5) and the second pair of mobile horizontal mills (13B) for a stretch tracks the forward movement of the side edgings (10 and 11) to smooth the respective tails with respect to the overlaid boards (4 and 5).

At this point the whole is assembled and the only remaining operation is to produce the shaped strips, which is carried out by:

first the circular saws (14) with vertical rotation axis, which cut the side edgings (10 and 11) along the surface of the overlaid boards (4 and 5) thus creating the side leaves 10A - 10B and 11A - 11B;

then the circular saw (15) with horizontal rotation axis, which separates the overlaid boards (4 and 5) through the middle perpendicularly to the surface of the overlaid boards, freeing the

strips

4A and 4B as well as 5A and 5B for immediate relevant usability.

Alternatively, in operating extension, at the overturning station (16) the upper board (5) with

relevant side leaves

10A and 11A is turned over 180° and with such orientation is positioned in sequence with the lower board (4) with

relevant side leaves

10B and 11B on the conveying line (2) [see Figure 2].

At the cutting station (17) the boards (4 and 5) following each other consecutively are cut by means of a circular saw (15) with horizontal rotation axis, thus forming the

strips

4A and 4B as well as 5A and 5B [see Figure 3].

At the separating station (18) the

strips

4A and 4B as well as 5A and 5B are reciprocally separated by means of progressively separating wedges (19), which are introduced between them as they move forward (see Figure 4).

At the shaping station (20) the

strips

4A and 4B as well as 5A and 5B are shaped into the respective faces (22) by the mills (21) [see Figure 5].

At the coating station (23) the sheet of coating material (23) is fed and deposited in known manner on the thus shaped faces, there made to adhere by means of the pressers (25) and simultaneously separated through the middle into respective strips on the faces (22) [see Figure 6], which are thus perfectly trimmed and finished [see Figure 7].

Alternative implementations

It is evident that in additional alternative forms of implementation, nonetheless falling within the innovation concept implicit in the implementation example described above and claimed below, the procedure according to this invention can alternatively be implemented with equivalent techniques and mechanics, with mechanisms possibly equipped with additional integrative devices, just as all the conformations of the constituent parts thereof can be altered in a manner suited to the purpose, of which the following is intended purely by way of example and not imperative:

The two overlaid boards can also be obtained from a single board split longitudinally, for example by vertical axis saws, structured and dimensioned such as not to be restricted to only cutting of the side edgings along the surface of the two overlaid boards, as in the implementation example described, but rather to separate a single board of adequate thickness for such a purpose into two overlaid boards.

Board feeding upstream of the relevant turnover station does not necessarily have to be accomplished with the device illustrated in Figures 1 A and 1B, but rather the downstream procedure phases and the relevant implementation devices may find constructive and effective application whatever the form of feeding of a succession of boards with side leaves.

The cutting, separating and milling operations of the strips can usefully be inverted in the relevant sequence, in the sense that modelling of the faces can be carried out on the still joined board to then reciprocally be detached and separated subsequent to modelling in order to be coated.

The separating action of the strips or faces can alternatively be carried out, rather than by wedges as described in the example, also by tracks that engage the lower profiles of strips or faces and reciprocally deviate from their path, or roller units, or conveyor belts, or anything else suited to the purpose.

The coating material can be also be cut into two strips before application.

The implementation devices of all the procedure phases can be of any type and kind suited to the purpose.

Advantages of the invention

As appears evident from the preceding detailed description of a chosen implementation example, the procedure and the relevant implementation device according to this invention offer the advantages corresponding to the achievement of the set and other purposes:

they integrate a functional, simple and immediate technology to increase productivity of faces for door and window frames from shaped strips of wood or wood surrogate.

Claims

Procedure to increase production of angular faces characterised by the fact that it comprises overlaying of at least two boards (4, 5), longitudinal application on the relevant twin frames of a single edging (10, 11) protruding above the opposing faces, cutting of the edging (10, 11) along the surface of the overlaid boards (4, 5), cutting through the middle of the boards (4, 5) perpendicularly to the said surface of the overlaid boards.
Procedure as per the preceding claim characterised by the fact that it furthermore comprises, in realization of and as alternative to said cutting through the middle of the boards (4, 5) perpendicularly to the surface of the overlaid boards, turning over the upper board (5) 180° and with such orientation positioned in sequence with the lower board (4) on the same conveying line (2), cutting through the middle of the boards (4, 5) along the feed axis, separation of the two strips (4A, 4B, 5A, 5B) thus obtained along the axis, relevant milling to achieve shaped faces (22), relevant covering with a single sheet (24) of coating material, gluing of the coating material (24) with longitudinal cutting of such material on the two faces (22).
Device for implementation of the procedure to increase production of angular faces as per the first claim characterised by the fact that it comprises feeding means (6) of at least two overlaid boards (4, 5) between lateral longitudinal application means on the relevant twin frames of a single edging (10, 11) protruding above the opposing faces, cutting means (14) to cut the edging (10, 11) along the surface of the overlaid boards (4, 5), cutting means to cut through the middle of the boards (4, 5) perpendicularly to the surface of said overlaid boards.
Device for implementation of the procedure to increase production of angular faces as per the first and the second claim characterised by the fact that it comprises in realization of and as alternative to said cutting means to cut through the middle of said boards (4, 5) perpendicularly to the surface of the overlaid boards, as per the preceding claim, means to turn over the upper board (5) 180° and with such orientation positioned in sequence with the lower board (4) on the same conveying line (2), cutting means (15) to cut through the middle of the boards (4, 5) along the feed axis, separating means (19) of the two strips (4A, 4B, 5A, 5B) thus obtained along the axis, relevant milling means (21) to achieve faces (22) in the desired shape, relevant coating means with a single sheet (24) of material, gluing means (25) of the coating material (24) with longitudinal cutting means (26) of said material on the two faces (22).
Device as per the third claim characterised by the fact that it comprises:

sliding means (2) for a pair of overlaid boards (4, 5) translated at the tail by means of pushers (6);

mills (8) to smooth the twin frames of the overlaid boards (4, 5);

gluing devices (9) to spread a layer of glue on the twin frames of the overlaid boards (4, 5);

feeding means for a pair of side edgings (10, 11) fed on the twin frames of the overlaid boards (4, 5) protruding above the opposing faces of the overlaid boards (4, 5);

presser means for adhesion (12) of the side edgings (10, 11) on the twin frames of the overlaid boards (4, 5);

mills (13) to smooth the edges of the side edgings (10, 11);

mobile mills (13A, 13B) to smooth the heads and tails of the side edgings (10, 11);

saws (14) to cut the side edgings (10, 11) along the surface of the overlaid boards (4, 5) thus forming the side leaves (10A, 10B, 11A, 11B);

saw (15) to cut through the middle of the overlaid boards (4, 5) perpendicularly to the surface of the overlaid boards thus forming the strips (4A, 4B, 5A, 5B).
Device as per the third and fourth claim characterised by the fact that it furthermore comprises, in realization of and as alternative to said saw (15) for cutting through the middle of the overlaid boards (4, 5) perpendicularly to the surface of the overlaid boards, as per the preceding claim:

a turnover station (16) where the upper board (5) with relevant side leaves (10A, 11A) is turned over 180° and with such orientation is positioned in sequence with the lower board (4) with relevant side leaves (10B, 11B) on the conveying line (2);

a cutting station (17) where the boards (4, 5) are cut by means of a circular saw (15) with horizontal rotation axis thus forming the strips (4A, 4B, 5A, 5B);

a separating station (18) where the strips (4A, 4B, 5A, 5B) are separated by means of progressively separating wedges (19) introduced between the strips (4A, 4B, 5A, 5B);

a shaping station (20) where the strips (4A, 4B, 5A, 5B) are shaped by means of mills (21) which model the faces (22);

a coating station (23) where the faces (22) are covered by means of a single sheet of coating material (24) which is made to adhere to the faces (22) by means of pressers (25) and simultaneously separated by a cutter (26) which cuts through the middle and separates the two strips respectively dedicated to each of the two faces (22).
Device as per the fourth or sixth claim characterised by the fact that said separating means of said strips (4A, 4B, 5A, 5B) or said faces (22) are alternatively composed of tracks, roller units, or conveyor belts which engage the lower profile of said strips (4A, 4B, 5A, 5B) or said faces (22).
Device as per the preceding claims characterised by the fact that said operating stations are in any case functionally incorporated in different manner suited to the purpose.
Device as per the preceding claims characterised by the fact that said overlaid boards (4, 5) are obtained from a single board by cutting it crosswise together with the relevant side edgings (10, 11) previously applied.
Procedure to increase production of angular faces and relevant implementation device as per any one of the preceding claims characterised by the fact that it finds application to a succession of boards in whatever way fed in longitudinal sequence, adapting to it by omitting the first turnover station where the upper board (5) is turned over 180° and relevant positioning in sequence with the lower board (4) on the same conveying line (2), as said boards are already fed in coplanar manner in linear succession without relevant overlaying.
Procedure to increase production of angular faces as per the first claim characterised by the fact that realization of a product is achieved by means of a device comprising any of the features as per the second through to the tenth claim.