DE2503985A1 - METHOD AND APPARATUS FOR CUTTING OBJECTS FROM WOOD OR THE SAME, IN PARTICULAR OF TRIM, DOORS, ETC. - Google Patents

Description

Patent attorneys Dipl-ing. F. ¥ e (cxmann,

Dipl.-Ing. H. WkιcKMANN, Dipl.-Phys. Dr. K. Fincke Dipl.-Ing. R A.Weickmann, Dipl.-Chem. B. Huber

8 MUNICH 86, DEN

PO Box 860 820

MÖHLSTRASSE 22, CALL NUMBER 98 3921/22

Robert JAHIN

5, avenue de Grande-Bretagne

LYON 6eme - Rhone, France

Henri PARRIER, 41, rue Marius Poncet

SAINT GENIS LES OLLIERES - Rhone, France

Jean PARRIER, 41, rue Marius Poncet

SAINT GENIS LES OLLIERES - Rhone, France

Andre PARRIER, 41, rue Marius Poncet

SAINT GENIS LES OLLIERES - Rhone, France

Method and device for cutting objects from Wood or the like, in particular moldings, doors and the like.

The invention relates to a method and a device or machine for cutting objects made of wood o. The like., In particular. _S p_ sondere trims, doors, among others

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At present, decorative strips such as straight strips, fillet strips, decorative strips with core strips or lines, as well as decorative strips with Quarter-circle profile manufactured, inter alia, in such a way that a piece of wood or a pre-throughput or a material is prepared before it of square or rectangular cross-section, which has previously been cut out of a board, according to the desired trim profile on a milling machine, especially a round bar milling machine.

In the case of straight ornamental lines, these are pre-prepared materials or pre-throughputs or "square" taken again so that they can be passed through the milling machine, in particular the rod milling machine, be allowed to pass through, which mills them so that they get the desired cross-section. However, there will be these pre-throughputs or pre-prepared materials are not retained during their milling, vibrations are generated, which gives the wood a wave-like appearance. Furthermore, the ends of the decorative strips are due to the same reasons their deviation from the desired cross-section is often unusable.

In the case of moldings with a rounded shape to provide even greater number of operations, since it is necessary vorzuzeich- the preferential Erich ended materials or Vordurchsätze in the board NEN _t them to cut them to be fixed on a template or teaching, they by means of a vertical cutter to Mill and separate the decorative strip from the template or gauge.

In the case where the molding is to have a concave profile in its upper part, it is necessary to use the latter three Repeat operations to run the trim in a horizontal router.

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With the invention, this manufacture is "considerably simplified. The method according to the invention is characterized in that each decorative strip with the desired cross-section and profile is directly from a board firmly held in position by means of at least a transversely movable milling cutter that is guided in its displacement by a guide rail.

As can be readily seen, the number of milling operations depends on the cross-sectional profile of the decorative strip.

According to a first embodiment of the method according to the invention in the case of a straight decorative strip, the board is selected so that its thickness is essentially equal to the width of the decorative strip and the decorative strip cut to size on the edge or narrow side and is cut out. ■

According to a modification of the method according to the invention the board is like this with a molding with a non-linear profile selected that its thickness is substantially equal to that of the decorative strip and the latter cut out on or from the surface will.

In any case, the molding will be fine during its processing held, since it is not yet separated from the board, but this separation in the first case only after it has been processed or in the second case according to their processing.

The device or machine proposed by the invention for performing the above method is distinguished through a frame that has a work table and a or several fastening devices for fastening a board, in which trim strips are to be cut out and milled, on the work table, and on the other hand above the

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Work table carries two horizontal parallel slide rails, which in turn carry a carriage, slide, or the like, which at least a horizontal Qi'Pr support ", which acts as a slide rail serves for at least one slide, which in turn carries the drive motor of a milling machine with a vertical axis and with an arm is provided, which is equipped with a button which is in engagement with a horizontal guide rail, which on or on the frame of the device between the slide rails of the carriage, sled or the like. And is attached above the latter.

As a result, you can choose the right guide rail ensure that the router follows the profile required for the trim.

According to a simple embodiment of the invention, each button has two rollers with vertical axes that are on one are the same level and are arranged on both sides of the guide rail with which the button interacts, the distance between the two rollers corresponds to the thickness of the guide rail.

The carriage preferably comprises two cross members, which act as slide rails serve for at least one slide, and the number of slide depends, as can easily be seen, on the cross-sectional profile of the Molding off. However, in most cases three slides are sufficient, two of which each carry a vertical cutter machined the edges of the trim, while the third slide carries an inclined milling cutter, which the upper side of the trim cuts, wherein a guide rail can be connected to each of the slides.

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It is possible to provide as many guide rails as there are slides. This arrangement is perfectly satisfactory when cutting moldings or other profiled objects want that have no parallel edges; in contrast, it is easy to see that it is used for cutting moldings with parallel edges is required that the relative positioning of the guide rails with great accuracy must be carried out, which of course is difficult to achieve under normal conditions of operation of machines of this type is.

In order to eliminate this difficulty, in a modified embodiment of the machine according to the invention, there is only one Guide rail is provided, and each slide is connected to a button which is in contact with this single guide rail is located.

If the carriage is moved along its slide rails while a trim strip is being machined that is not straight it is necessary that the axis of the inclined milling cutter remains constant in a plane that is perpendicular to the central axis of the trim being machined is.

To this end, the pusher which carries the drive motor of the inclined cutter has two parts, namely an upper part which is slidably mounted on the corresponding cross member and a lower part which is mounted pivotably with respect to the upper part , namely pivotable about a vertical axis which goes essentially through the central axis of the decorative strip, the pivot axis of this pivotable part being provided with an upper extension, the free end of which has a device through which the angle between the vertical plane through which the axis of the milling machine goes _s and

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the axis of the guide rail, which in turn is arranged in the vertical of the working area of this milling machine, is constantly upright can be held.

According to a simple embodiment of the invention the free end of the extension is formed by a cap carrying a roller, the groove of which engages with the corresponding one Guide rail is standing.

According to a modified embodiment of the invention, the free end of the extension of the holding arm of the inclined milling cutter is with a button which is identical to the button of each of the holding arms of the other milling cutters, i.e. two rollers has vertical axes located on the same level, which are arranged on both sides of the guide rail, their gap being equal to the thickness of this guide rail.

The invention is explained below with reference to some of the figures in FIG Drawing of particularly preferred exemplary embodiments shown in principle explained in more detail; show it:

1 shows a sectional view along the line 1-1 of FIG. 1, the three slides for better visibility have been pulled apart;

Fig. 2 is a sectional view along the line 2-2 of Fig. 1, in which the slides are in their working position; and

3 shows a view similar to FIG. 1, in which a modified embodiment of the one shown in FIG. 1 is shown Machine is shown in which only a single guide rail is provided for the three slides is.

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A frame, frame or the like 2 carries on the one hand a table 3 on which the board 4 is attached, in which the decorative strips are to be cut, and on the other hand this Ti ₁ SCh carries two horizontal and parallel slide rails 5, which are above the table 3 are arranged and on which a generally designated by the reference numeral 6 carriage is mounted.

The carriage 6 has two longitudinal members 7 and two cross members 8, which serve as slide rails for slides 9, 10 and 11. In the embodiment shown in the drawing, there are three slides provided because it has been found that this number is usually sufficient. The two outer sliders 9 and 10 each carry a drive motor 12 and 13, respectively, of a vertical one Milling machine 14 or 15. These milling machines are intended to cut the side edges of a decorative strip 4a. Consequently they are separated from one another by the middle slide 11, the width of which, as can be readily seen, is greater than that the trim is; the slides 9 and 10 are advantageously each equipped with a horizontal holding arm 16 and 17, respectively, which makes it possible to set the distance separating the cutters 14 and 15 to a value equal to the width the trim is. The holding arms 16 and 17 are advantageously attached in such a way that they pivot on the slides 9 and 10 can be so that the adjustment of the aforementioned distance can be made without these arms having to be replaced by shorter or longer arms. ''

As can be seen in Fig. 1, each slide 9 and 10 is a guide rail 18 and 19 assigned, which are each carried by a horizontal carrier 20 and 21, which in turn is parallel to the slide rails 5 and is supported by the frame 2 above the carriage 6. The leadership of the slide 9 and 10 is ensured by rollers 23 and 24, which are attached to the slides 9

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and 10 are attached or form-fit with these slides are connected and which are in engagement with the rails 18 and 19.

As a result, it results that when the carriage is displaced along the slide rails 5, the milling cutters 14 and 15 become one follow the path of the rails 18 and 19 parallel path, so that it is sufficient to attach rails having the desired profile of the molding so that the side edges of the latter are cut out according to the profile.

The middle slide 11 is essential when it is not possible is to cut the cross-sectional profile of the trim 4a with the help of the two milling cutters. This is especially the case when the molding has a concave asymmetrical area in its upper part, as illustrated in the drawing Embodiment. It is easy to see that this concave area or part cannot be made with the help of a vertical one Milling machine to be machined or worked out; for this reason, the slide 11 carries a drive motor 25 of an inclined Milling cutter 26. In this case, it is so that the axis of milling cutter 26 remains permanently in a vertical plane that is perpendicular to the axis the trim 4a extends, indispensable that at least the part 11a of the slide 11, which carries the motor 25, pivotable about a Pivot pin 27 is attached, the axis of which is substantially passes through the central axis of the trim 4a. The slide 11 is assigned a guide rail 28 which, like the Rails 18 and 19, carried by a horizontal beam 29 which is parallel to the slide rail 5. To the leadership of the slide 11 during its displacement and during the rotation of its pivotable part 11a with the aid of the guide rail 28, the pivot pin or the rotary shaft 27 is provided with an upper extension, the outer end of which in

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_ ei .. ■

In the form of a cap 27a, a roller 31 carries with its recess 31a is in engagement with the rail 28.

In a modified embodiment, the outer end can be in the form of the cap 27a of the pivot arm 27 like the buttons or sensors of the other support arms 16a and 17a respectively, i.e. two rollers with vertical axes like that Have rollers 23 and 24 which are in engagement with the guide rail 28 on both sides. ■

In order to enable the inclination of the milling cutter 26 to be set, the pivotable part 11a of the slide 11 has two elements, namely, an upper and a lower element which are connected to one another by means of a horizontal axis 32 carried by the upper element are articulated, the drive motor 25 of the milling cutter in turn being carried by the lower element.

Furthermore, it is essential that the respective heights of the milling cutters 15, 16 and 26 can be adjusted.

In the case of milling 15 and 16 this is possible in that the Carriers 16a and 17a of the pivot arms 16 and 17 have an adjustable height with respect to their respective slide 9 and 10, and because of the vertical slots 16b and 17b, which are provided for this purpose in the carriers 16a and 17a.

In the case of the milling cutter 26, its height adjustment is thereby possible that the articulation axis of the lower element of the pivotable part 11a is carried by a carriage 33 which is attached to an arbitrary can be attached to the place of a vertical slot 34 provided in the upper element.

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- ίο -

As a result, it is, as can be easily seen, possible in a single run of the carriage 6, a trim strip 4a in one single operation and to be made directly from a board 4.

Of course, if you want to change the profile of the decorative strip 4a, the supports 21, 22 and 29, which are the guide rails or wear templates 18, 19 and 28, to be exchanged in order to replace them with other supports with guide rails or templates of the required profile are equipped.

The type of use of the machine described can, as can be seen without further recognizes, depending on the type of. desired trim may be different. This is how it is, for example, when you are watching a Want to get trim, the cross-section of which can be achieved with a single milling cutter, possible only the sliders 9 and 10 to be used with vertical milling machines, using the milling machine designed to cut the cross-section of the decorative molding, on the slider 10, and by taking care of course that a board. 4 is used, its thickness corresponds to the width of the decorative strip »

In this case, the milling cutter 14 of the slide 9, which is offset to the rear with respect to the milling cutter of the slide 10, is only used to separate the decorative strip from the board 4.

As can be seen, no matter how the machine is used, the trim is with it while it is being cut connected to the board in which it is cut out, thereby eliminating any risk of vibration, which may be the cause of poor cutting.

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Reference is now made to FIG. 3, in which the with the previous figures identical parts "or organs with the the same reference numerals are provided. Here is each of the buttons, which by the with supports 16a and 17a of a swivel arm 16 and 17 connected roller pairs 23 and 24 is formed, with these carriers via a horizontal displacement arm 16c and 17c, respectively tied together; these displacement arms are only partially shown, so that the figure 3 is not obscured by too many representations. However, it is easy to see that these displacement arms 16c and 17c can come into engagement with the rollers 23 and 24 with the guide rail 28, which in turn is in the vertical of the work area the milling cutter 26 is located, which is held by the middle slide 11. As a result, this arrangement allows to omit the guide rails 18 and 19, whereby.die Difficulties resulting from their precise positioning relative to the guide rail 28 are avoided.

In addition to the advantages that result from the above description, the machine described also offers the possibility of that you can very easily prepare them for an automatic mode of operation, since it is sufficient for this to be an automatic one Advance of the cross member 8 and a step-by-step automatic advance of the board 4, in which the trim or fillet strips are cut are to be provided, together with an automatic locking of the step-by-step board feed after the Falling down of each cut molding or molding during of cutting the following molding or decorative molding.

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Claims (12)

Claims Γΐ.) Procedure for cutting wooden objects ο. like., preferably of decorative strips, doors, etc., characterized in that each decorative strip with the desired cross-section and profile directly from one fixed held in its position board by means of at least one transversely movable and in its displacement by a guide rail guided milling machine. 2. The method according to claim 1, characterized in that that with a straight trim, the board is selected so that its thickness is substantially the same is the width of the decorative strip and the decorative strip is cut to size on or on the edge or narrow side will. 3. The method according to claim 1, characterized 'gekenzeichn e t that in the case of a trim strip with a non-linear profile, the board is selected so that its thickness is essentially is the same as that of the decorative strip and the latter is cut out on or out of the surface. 4. Device for performing the method according to one of claims 1-3, characterized by a frame (2) which, on the one hand, has a work table (3) and one or more fastening devices for fastening a board (4), in which trim strips are to be cut out and milled, carries on the work table, and which, on the other hand, carries two horizontal parallel slide rails (5) above the work table, which in turn carry a carriage, slide or the like (6) wear at least one horizontal transverse 509832/0320 carrier (8) which serves as a slide rail for at least one slide (9, 10, 11), which in turn is the drive motor (12, 13) a milling cutter (14, 15) with a vertical axis and is provided with an arm which is equipped with a button (23, 24) with a horizontal guide rail (18, 19) is in engagement, which on or on the frame the device between the slide rails of the carriage, carriage o. The like. And is attached above the latter. 5. The device according to claim 4, d a d u r c h g e k e η nzeich, that each button has two rollers ("23» 24) with vertical axes, which are on the same level are located and on both sides of the guide rail (18, 19) with which the button interacts, wherein the; Distance between the two rollers corresponds to the thickness of the guide rail. 6. Apparatus according to claim 4 or 5, characterized in that the carriage, slide o. The like. (6) " has two cross members (8) which serve as slide rails for at least one slide (9, 10, 11). 7. Apparatus according to claim 6, characterized in that g e k e η n- z ei c h η e t that the carriage, slide or the like. Three slides (9, 10, 11), two of which each carry a vertical milling cutter (14, 15) which processes the edges of the decorative strip, while the third slide (11) has an inclined milling cutter (26) carries, which cuts the upper side of the molding. 8. Device according to one of claims 4-7, characterized characterized in that the device with as much Guide rails (18, 19, 28) is provided, as it has slides (9, 10, 11), each of the guide rails with 509832/0320 connected to a slide or assigned to a slide. 9. Device according to one of claims 4-7, characterized in that the device with a single guide rail (28) is provided, each slide (9, 10, 11) is connected to a button (23, 24) which is in contact with the guide rail. 10. Device according to one of claims 4-9, characterized in that the slide (11) which the The drive motor (25) of the inclined milling cutter (26) has two parts, namely an upper part (11) which is slidable is mounted on the corresponding cross member (8), and a lower part (11a) which can be rotated or pivoted with respect to of the upper part is mounted pivotable about a vertical axis (27) passing substantially through the central axis the trim goes, the pivot axis of this pivotable part with an upper extension (27a) is provided, the free end of which has a device by which the angle between the vertical plane in which the axis of the milling cutter (26) lies, and the axis of the guide rail (29), which in turn is in the vertical of the work area this milling machine is arranged, can be kept constant upright. 11. The device according to claim 10, characterized in that that the free end of the extension is formed by a cap (27a) which carries a roller (31), whose groove (31a) is in engagement with the corresponding guide rail (28). 509832/03 2.0 12. The device according to claim 10, characterized in that that the free end of the extension of the support arm of the inclined milling cutter (26) is provided with a button which is identical to the button of each of the holding arms of the other milling cutters (14, 15). i.e. two roles (23, 24) with vertical ■ len axes, which are arranged on both sides of the guide rail (28), their gap equal to the thickness of this Guide rail is. 509832/0320 Blank page