AT514265A2 - Machine for processing wood panels - Google Patents

Abstract

The present invention relates to a machine (1) for the processing of wood panels or the like, in particular cutting or sawing machine. The machine (1) has a cutting line (A) and comprises a first circular cutting blade (10) having a first axis of rotation (II) with a first median plane (12) and axially defining its thickness from two first end planes (13a, 13b) is parallel to each other and perpendicular to said first axis of rotation (11) extend; and a second circular cutout blade (20) having a second axis of rotation (21) substantially parallel to the particular first axis of rotation (11) and having a second median plane (22) whose thickness extends axially from two second end planes (23a, 23b). is limited, which are parallel to each other and perpendicular to said second axis of rotation (21).

Description

02/05 2014 12:32 FAX +4315339250 HAFFNER & KESCHMANN @ 005/033

The present invention relates to a machine for working wood panels or the like.

In more detail, the invention relates to a machine for processing wood panels or the like, such as a saw or cutting machine equipped with a circular cutting blade / a circular cutting blade, and a measuring system for automatically aligning the center planes of said circular cutting blades. and cut leaves.

In the field of processing wood panels or the like, it is known to make sawing or cutting machines comprising a base, a substantially horizontal support plane for one or more overlapping plates, a circular cutting blade and a circular cutting blade, such circular blades substantially have parallel axes of rotation, and protrude in use over said carrier plane.

The circular blade has the task of the desired processing on the wooden plate, i. usually perform the opening of the same plate.

On the contrary, the circular sipe blade has the task of avoiding the lower splitting of the plate caused by the aperture by creating a groove on the lower surface of the same plate prior to such machining.

In sawing machines, the slab is usually placed at the slab level to the circular slit and circular cutting and slicing section of the slab. 02/05/2014 12:43 2/29 R447 P.005 / 033 02/05 2014 12:33 FAX +4315339250 HAFFNER & KESCHMANN 1006/033 ······················································ ··· ··· · · · · · ··· «···« «····· 2

Cut leaves moves by doing in this way a groove on the lower surface, and performs the desired cut.

On the contrary, in sawing machines, the circular cutting and cutting blades are usually connected to a carrier, the so-called blade carriage, which is movable along the base of the same machine so as to move the said circular blades towards the wooden plate. wherein the groove on the lower surface and the desired cut are performed.

The relative movement between the wooden plate and the circular cutting and sizing blades defines a so-called cutting line which represents the intersection between the median plane of said wooden plate and the median planes of said circular cutting and sizing blades.

Furthermore, the circular cutting and sizing blades each have a majority of cutting teeth.

The majority of the cutting teeth of the circular sipe blade may have a trapezoidal shape whose base faces the axis of rotation of the same circular blade, or may have an inverted trapezoidal shape whose base is externally facing the same circular blade.

In the case of a majority of trapezoidal teeth is 02/05/2014 12:43 3/29 R447 P.006 / 033 02/05 2014 12:33 FAX +4315339250 HAFFNER 8 KESCHMANN @ 007/033 ···· ···· 9 999 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 999 9999 999 3 the length of the groove is also a function the penetration depth of the circular incision blade in the wood panel, whereas in the case of a majority of teeth having an inverted trapezoidal shape, the width of the groove is not a function of the depth of penetration of the circular incision blade in the wood panel;

Therefore, usually in sawing or cutting machines, the circular cutting blade has a further degree of freedom with respect to the circular cutting blade to adjust the depth of immersion in the plate, and as a result, the length of the groove on the lower surface of the same plate.

It is known in the field of woodworking or the like that in sawing or cutting machines it is necessary to replace the circular cut and cut sheets as a function of the type of sheet to be worked or the degree of wear of the same circular sheets.

However, such an exchange step of the circular blades requires a subsequent alignment step of the middle planes of the circular blades so that the circular sipe blade is capable of working the correct groove on the lower surface of the disc by preventing them from splitting during the piercing step ,

Such an alignment step of the middle planes of the circular leaves is usually done in such a way that the circular incision sheet axially until 02/05/2014 12:44 4/29 R447 P.007 / 033 02/05 2014 12:33 FAX + 4315339250

HAFFNER & KESCHMANN @ 008/033 • ·· ···· ·· e * «• ·« ·· • ee • · · • It can be seen that such a result can also be achieved such that the circular blade is moved axially, or both circular blades are moved axially. *** "

The alignment step can also be done manually, for example by means of subsequent tests on test plates or automatically when using sensors and actuators. For the automatic alignment of the middle planes of the circular cutting and sizing blades, it is necessary to know the position of said middle planes with respect to a label associated with the sawing or cutting machine.

The location of the medial plane of a circular blade with respect to an indicia can be determined such that one knows the geometrical parameters of the majority of cutting teeth and the position, with respect to said indicia, of the two end planes which limit the axial thickness of the same circular blade ,

It follows that such end planes are parallel to each other and perpendicular to the axis of rotation of the circular blade and tangent to the majority of cutting teeth.

In the automatic alignment systems, the plies of the two end planes, which bound the axial thickness of the circular blade, and the plies of the two end planes, which are the axial thickness of the plane, are aligned. R447 P.008 / 033 02/05 2014 12:34 FAX +4315339250 HAFFNER 8 KESCHMANN ® 009/033 02/05 2014 12:34 FAX +4315339250 HAFFNER 8 KESCHMANN ® 009/033

•···· ··· •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• determined.

The manual override systems have the disadvantage that they require long regulation times and the use of examination material.

The automatic alignment systems, although they have reduced control times and do not require the use of test material, have the disadvantage of being very expensive due to the use of sophisticated sensors such as laser sensors.

In light of the above, the object of the present invention is to produce a machine for processing wood panels or the like, of the sawing or cutting machine type, equipped with a measuring system for automatically aligning the circular cutting or cutting blades equipped, and which overcomes the above disadvantages,

It is therefore a specific object of the present invention to provide a machine for working wood boards or the like, in particular a cutting or sawing machine, said machine having a cutting line and comprising a first circular cutting blade having a first axis of rotation with a first median plane, and which has an axially limited thickness between two first end planes which are parallel to one another and perpendicular to each other and perpendicular to the surface @ 010/033 02/05 2014 12:34 FAX +4315339250 HAFFNER & KESCHMANN @ 010/033

Are the first axis of rotation; a second circular sipe having a second axis of rotation substantially parallel to said first axis of rotation and having a second median plane whose thickness is bounded axially by two second end planes parallel to each other and perpendicular to said second axis of rotation; a measuring system adapted to determine first positions of said first end planes and second positions of said second end planes with respect to a reference; a handling system adapted to axially move said first circular cutting blade and said second circular cutting blade relative to each other; and a processing device connected to the measuring system and the handling system and adapted to control said handling system in response to the information relating to said first and second positions received by said measuring system about said first median plane of said first circular cutting blade to align with said second median plane of said circular incision blade, said measuring system comprising a frame adapted to receive at least a peripheral portion of at least one circular blade; a guidance system associated with said frame; a first and a second stylus disposed on opposite sides with respect to said at least one central portion of said at least one circular blade and at least from said guide system with R447 P. 010/033 02/05 2014 12:34 FAX +4315339250 HAFFNER & KESCHMANN @ 011/033 • · ♦ • · ♦ • ♦ · • · ···

7

Relating to said reference, are translated to come into contact with said at least one peripheral portion; and a position sensor adapted to determine corresponding existing distances from said first and said second buttons to said reference, said first distances agreeing with said first and said second distances when said first or said second button coincides are in contact with said section.

Still according to the invention, such measuring systems and such circular blades may be relatively moveable between at least a first position in which said frame receives said at least one peripheral portion of said first circular cutting blade and a second position in which said frame receiving said at least one peripheral portion of said second circular sipe blade.

According to the invention, preferably, said first and second keys can both be moved with respect to said reference by at least one actuating means.

The said device with position sensor may further comprise a magnetostrictive sensor comprising a substantially transversely, in particular arranged perpendicular to said at least one peripheral portion measuring rod, two resp. Magnetic magnetic elements bonded to said first and second pushbuttons. 02/05/2014 12:45 8/29 R447 P.011 / 033 02/05 2014 12.35 FAX +4315339250

HAFFNER & KESCHMANN @ 012/033 ·· ·· ··· • · · · · · · · · · · · · ····································································

8th

Slider, and an electronic control unit adapted to determine the position with respect to said reference of said two magnetic slides along said measuring rod, such positions being representative of said current distances.

According to the invention, such first and second keys may both be movable with respect to said frame on said guide system.

According to the invention, such first and second keys can advantageously each be moved by a corresponding actuating means, said actuating means preferably being of the pneumatic type.

Still according to the invention, said first button may be movable with respect to said frame, said second button being fixed with respect to said frame, said frame and said first button being referenced relative to said reference on said frame said guide system can be movable.

According to the invention, preferably a part of said frame may function as said second button, said frame and said first button both being capable of being handled by an actuating means in response to said at least one peripheral portion, said actuating means having said Frame is connected by acting on the said first button and is preferably of the pneumatic type. P.012 / 033

02/05/2014 12:45 ^ L ??. MAY 02/05 2014 12:35 FAX +4315339250 HAFFNER & KESCHMANN @ 013/033 02/05 2014 12:35 FAX +4315339250 HAFFNER & KESCHMANN @ 013/033

·· 9 ·· ·· ** • # · • ·· *

• * ··· ···· IN THE • ·

The present invention will now be to

Illustrative, but not limiting, in accordance with its preferred embodiments, and more particularly with

FIG. 1 is a front view of a machine for processing wood panels or the like according to the present invention; Figure 2 is a plan view of a part of the machine of Figure 1, during a step of determining the position of the circular cutting blade of said machine; Figure 3 is a plan view of a portion of the machine of Figure 1 during a step of determining the position of the circular sipe blade of said machine; Figure 4 shows the position of the cutting blade with respect to a fixed reference; Figure 5 shows the position of the sipe with respect to a fixed reference; Figure 6 shows the positions of the cutting blade, the cutting blade and a measuring device of the present machine with respect to a fixed reference; Figure 7 is a sectional view of said measuring device in combination with the cutting blade; Figure 8 is a sectional view of said measuring device in combination with the incision sheet; and FIG. 9 is a sectional view of a variant of 02/05/2014 12:46

P.013 / 033 @ 014/033

02/05 2014 12:36 FAX +4315339250 HAFFNER & Keschmann

0 9 999 9000 90 * 10 in combination with the trimming sheet ,

With reference to the figures 1 to 8 set forth herein, reference number 1 shows a machine for working wood boards or the like, such as a cutting or sawing machine in which a cutting line A is defined.

The above-mentioned machine 1 comprises a first circular cutting blade 10, which has a first axis of rotation 11 and a first center plane 12.

The first circular cutting blade 10 has a thickness which, according to the first axis of rotation 11, is delimited by two first end planes 13a, 13b which are parallel to one another and perpendicular to the first axis of rotation 11.

The machine also includes a second circular sipe blade 20 having a second axis of rotation 21 substantially parallel to the first axis of rotation 11 and a second center plane 22.

The second circular incision blade 20 has a thickness bounded along the rotation axis 21 by two second end planes 23a, 23b which are parallel to each other and perpendicular to the second rotation axis 21.

In the first circular cutting blade 10 and the said second circular cutting blade 20, a measuring system 40 is arranged, which has the first positions R447 P.014 / 033 @ 015/033 02/05/2014

02/05 2014 12:36 FAX +4315338250 HAFFNER S KESCHMANN I f «· 1 · · · · · · ························································································ · · · · M ····· 11

Dl, D2 of said first end planes 13a, 13b and the second positions D3, D4 of said second end planes 23a, 23b, with respect to a fixed reference R.

The above-mentioned first positions Dl, D2 and second positions D3, D4 respectively define. the axial dimensions of said circular cutting blade 10 and said circular incision blade 20.

The measuring system 40 and the circular first and second blades (10, 20) are movable with respect to the others, so that the frame 41 of said measuring system can assume a first and a second position, in which the respective peripheral portions P ', P "; of the circular cutting blade 10 and the circular incision blade 20.

The machine 1 also has a handling system 31 adapted to move said circular cutting blade 10 and said circular cutting blade axially relative to each other.

The machine 1 further comprises a processing device 30 which is suitable for receiving information from the measuring system 40 and for processing the information about the first positions D1, D2 and second positions D3, D4.

On the basis of the received and processed position information, the said 02/05/2014 12:46 12/29 .1447 P.015 / 033 02/05 2014 12:36 FAX +4315339250 @ 016/033

HAFFNER & Keschmann

»· · · T · · · ·« · »·· 9 ·· ···· ··· 12

Processing device 30 with the handling system 31, the first center plane 12 of said first circular cutting blade 10 to align with said center plane 22 of said second circular incision sheet 20.

In more detail, the measuring system 40 consists of a frame 41, which is determined peripheral portions P ', P " the circular leaves 10, 20 record.

Mounted on the frame 41 are a first button 42a and a second button 42b opposite each other, both of which can translate by means of a guide 43 formed in the frame 41 and with respect to said reference R by respective actuators 47a, 47b, preferably of the pneumatic type to be moved.

Said first key 42a and second key 42b may be on opposite sides with respect to the peripheral portions P ', P " of the circular blades 10 and 20 are moved and translated in translation with respect to the above-mentioned reference R to the latter until they are aligned with said peripheral portions P ', P " get in touch.

The measuring system 40 also comprises a device with a position sensor 50 which is suitable for determining the actual mutually facing end distances DX, DY of the first probe 42a and of the second probe 42b from the said reference R.

Such a device with a position sensor 50 02/05/2014 12:47 13/29 in the r. : R447 P.016 / 033 1017/033

02/05 2014 12:37 FAX +4315339250 HAFFNER & KESCHMANN ························································································································································ . * ·· *.

Essentially, it comprises a magnetostrictive sensor having a substantially transverse or perpendicular to said peripheral portions P ', P " arranged measuring rod 51 includes, if these are arranged in the interior of the frame 41.

Oer above magnetostrictive sensor further comprises two magnetic slider 52a, 52b, which with the said first button 42a respectively. second button 42b are fixed and arranged so that they interact magnetically with the measuring rod 51, as is known in the field of magnetostrictive sensors.

Such a magnetostrictive sensor also includes an electronic control unit 53 adapted to determine the positions, with respect to said reference R, of said magnetic sliders 52a, 52b along said measuring rod 51 which are representative of said actual distances DX, DY ,

In particular, when the first key 42a and the second key 42b are in contact with each peripheral portion P ', P " advised, correspond to such actual distances DX, DY the said first distances Dl, D2 or second distances D3, D4.

According to a variant of the abovementioned measuring device shown in FIG. 9, the first pushbutton 42a is movable with respect to the frame 41, while the second pushbutton 42b takes the form of a stop wall of the said frame 41 facing and facing the first pushbutton 42a on the said 02/05/2014 12:47 14/29 ... fr R447 P.017 / 033 02/05 2014 12:37 FAX +4315339250 HAFFNER & KESCHMANN @ 018/033 02/05 2014 12:37 FAX +4315339250 HAFFNER & KESCHMANN @ 018/033 • · · · · · · · · · · · · · · · · · ····························································

Frame 41 is fixed.

In this latter case, both the frame 41 and the first button 42a on the guide 43 are movable with respect to the reference R, and preferably both are moved by an actuating means 47a, preferably of the pneumatic type, by the principle of action and Reaction to said peripheral sections P \ P " use.

The operation of the machine 1 provides that prior to the cutting operations of the plates, the two circular blades 10, 20 are aligned with each other based on the detection of the actual positions, or distances from a fixed selected reference of said two blades 10, 20 and the above said button 42a, 42b, as stated earlier.

The present invention has been described by way of illustration, not limitation, in accordance with its preferred embodiments, and it is to be understood that changes or modifications may be made by those skilled in the art without departing from the relevant scope of protection as defined by the appended claims. 02/05/2014 12:47 15./ 29R447 P.018 / 033

Claims (7)

02/05 2014 12:37 FAX +4315339250 @ 019/033 * · · ··· HAFFNER & Keschmann Claims 1. A machine for processing wood panels or the like, in particular a cutting or sawing machine, said machine (1) having a cutting line (A) and a first circular cutting blade (10) having a first axis of rotation (11) with a first median plane (12) whose thickness is bounded axially by two first end planes (13a, 13b) parallel to each other and perpendicular to said first axis of rotation (11) , a second circular sipe blade (20) having a second axis of rotation (21) substantially parallel to said first axis of rotation (11) and having a second median plane (22) whose thickness is axially different from two second end planes (23a, 23b) which are parallel to each other and perpendicular to said second axis of rotation (21); a measuring system (40) capable of detecting first positions (D1, D2) of said first end planes (13a, 13b) and second positions (D3, D4) of said second end planes (23a, 23b), with reference to to determine a reference (R); a handling system (31) capable of axially moving said first circular cutting blade (10) and second circular cutting blade (20) relative to each other; and a processing device (30) connected to the measuring system (40) and the handling system (31) and capable of, depending on the information relating to the said P.019 / 033 02/05/2014 12:48 16 / 29R447 @ 020/033 02/05 2014 12:38 FAX +4315339250 HAFFNER & KESCHMANN •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• first positions (D1, D2) and second positions (D3, 04), to control said handling system to move said first medial plane (12) of said first circular cutting blade (10) to said median plane (22) of said first plane second circular incision blade (20), characterized in that such a measuring system (40) comprises a frame (41) capable of forming at least one peripheral portion (P '; P') of at least one circular blade (10; ) / comprises a guide system (43) connected to said frame (41); a first probe (42a) and second probe (42b) both disposed on opposite sides with respect to the at least one peripheral portion (P '; P ") of the at least one circular blade (10; said guide system being guided with respect to said reference (R) to contact said at least one peripheral portion (P ', P "); and means, having a position sensor (50) capable of detecting respective actual distances (DX, DY) of said first button (42a) and said second button (42b) from said reference (R), in said current distances (DX, DY) coincide with said first distances (D1, D2) or said second distances (D3, D4) when said first key (42a) and said second key (42b) are in contact with the said section (P ', P "). P.020 / 033 02/05/2014 12:48 17 / 29R447 02/05 2014 12:38 FAX +4315339250 HAFFNER & KESCHMANN @ 021/033 • M MM fr · · • • «·« «« «« 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 A machine (1) according to claim 1, characterized in that said measuring system (40) and said circular knives (10, 20) are movable relative to each other between at least one position in which said frame (41) at least a peripheral portion (P ') of said first circular cutting blade (10) and a second position in which said frame (41) receives said at least one peripheral portion (P ") of said second circular cutting blade (20). A machine (1) according to any one of the preceding claims, characterized in that said first button (42a) and said second button (42b) are both in relation to said reference (R) by at least one actuating means (47a; 47b). to be moved. 4. Machine (1) according to one of the preceding claims, characterized in that said position sensor means (50) comprises a magnetostrictive sensor having a measuring rod (51) substantially transversely, in particular perpendicular to said at least one peripheral portion (P '. j P "), two magnetic sliders (52a, 52b) respectively connected to said first button (42a) and said second button (42b), and an electronic control unit (53) adapted to determine the positions with respect to said reference (R) of said two magnetic sliders (52a, 52b) along said measuring rod (51) which is representative of said current P.021 / 033 02/05/2014 12:49 18 / 29R447 02/05 2014 12:38 FAX +4315339250 HAFFNER ft KESCHMANN «······································································································ · 1Θ # · # ♦ · * ·· @ 022/033 distances (DX, DY) are. A machine (1) according to any one of the preceding claims, characterized in that said first button (42a) and said second button (42b) both with respect to said frame (41), on said guide system (43), are mobile. A machine (1) according to claim 5, characterized in that said first button (42a) and said second button (42b) are both moved by respective actuating means (47a, 47b), said actuating means (47a, 47b ) are preferably of the pneumatic type. A machine (1) according to any one of claims 1 to 4, characterized in that said first button (42a) is movable with respect to said frame (41), from the fact that said second button (42b) is movable with Relative to said frame (41), and that said frame (41) and said first button (42a) are movable with respect to said reference (R) on said guide system. Θ. A machine (1) according to claim 7, characterized in that a part of said frame (41) acts as said second button (42b), and said frame (41) and said first button (42a) are both of an actuating means (47a) are moved in response to said at least one peripheral portion (F '; p "), said actuating means (47a) being connected to said frame (41), to said first key (42a) P.022 / 033 02/05/2014 12:49 19 / 29r447 02/05 2014 12:39 FAX +4315339250 HAFFNER & KESCHMANN ® 023/033 «· · ···················································································································································. Vienna, 2 May 2014 Applicant by: lann Haffner and Kesc Patentanwälte * Gm 02/05/2014 12:49 20 /. 29 R447 P.023 / 033