DE102012200481A1 - Four-sided machining in double end tenoner - Google Patents

Abstract

The present invention relates to machines for processing preferably plate-shaped workpieces in a continuous process. Such machines are used for example in the field of furniture and component industry to edit furniture fronts, panels, doors, windows or the like. The device according to the invention comprises a narrow surface or profiling machining area (B) with a conveyor track, a top pressure and a tool for narrow area and / or profiling processing. Furthermore, the present device comprises an inlet region (A), which inlet region (A) has a further conveyor track and a further top pressure, and in the region of the inlet region (A) at least a first processing unit for processing a first main side of a workpiece, and at least one second processing unit is provided for processing a second main side of the workpiece.

Description

Technical area

The present invention relates to machines for processing preferably plate-shaped workpieces in a continuous process. Such machines are used for example in the field of furniture and component industry to edit furniture fronts, panels, doors, windows or the like.

State of the art

In the field of panel production of solid wood workpieces previously so-called moulders or planers are used, which can work on four sides. However, such moulders are limited in their functionality, and have the following disadvantages:
On the one hand, moulders or planing machines are only partially able to produce so-called "click" or "lock" profiles on the narrow sides of the workpiece, as described, for example, in US Pat. B. in the floor area (laminate, parquet) or in wall and ceiling panels is common, since the machining motors of such machines are not sufficiently pivoted or are not equipped with a sufficiently large adjustment. Therefore, so-called double-end tenoners are used for machining workpiece narrow sides.

Furthermore, in the case of moulders or planing machines, the workpieces are guided along a fixed strip during the passage, and held against them, so that the workpieces in the area of the processing station can be machined to size. However, if a workpiece runs curved or "banana-shaped" into such a machine, it will return to its original shape after machining. Furthermore, there is a risk that the workpiece will scratch the said strip.

In the so-called Doppelendprofilern the above-mentioned disadvantages are not present, since the workpiece with a conveyor track along pivotable machining motors along with large adjustment paths. In this way, so-called "Click" and "Lock" profiles can be produced. Furthermore, a stress-free enema is possible (the so-called "banana shape" of a workpiece is not pressed during machining), and the workpieces do not scratch because they rest on the moving conveyor rather than being displaced along a fixed abutment.

However, the structure of said double-end tenoners has the disadvantage that no machining on the top and bottom (main sides) of the workpiece is possible because a workpiece on its underside with the moving conveyor track and at the top with a top pressure belt in contact and through this is held.

The document DE 20 2006 020 304 U1 discloses a Doppelendprofiler with one or two of chain links formed guide chains as a rotating workpiece support. The in the DE 20 2006 020 304 U1 disclosed chain links are used in continuous machines because of the emphasis in this series production, the high throughput speeds of the workpieces through the machine and the previously regarded as a major influence of the lower, rotating workpiece support on the quality of machining. The workpiece conveyor circulating conveyor chain also runs in a plane which is perpendicular to the transport plane of the workpiece.

Subject of the invention

Against the background of the prior art problems, it is an object of the present invention to provide a device with which a preferably plate-shaped workpiece can be machined in a more variable and comprehensive way.

The stated object is achieved by a device according to claim 1 and a method according to claim 12. Further preferred embodiments can be found in the dependent claims. Particularly preferably, the method can be carried out according to claim 12 with a device according to claim 1.

The present invention has the advantage that a workpiece can first be processed from the top, for example, planed and / or provided with grooves. With a subsequent further unit, the workpiece can be machined from the bottom, in particular planed. Subsequently, the workpieces are conveyed to Schmalflächen- or profiling processing in another section of the device according to the invention. In this way it is possible to combine a four-sided machining of preferably plate-shaped workpieces with the advantages of a known Doppelendprofilers.

In a preferred embodiment, the inlet region of the processing device according to the invention has a first and second top pressure, and the at least one first processing unit is provided in the direction of passage between the further first and second top pressures. This ensures that the workpiece during machining by the at least one first processing unit at the top of is held first and second upper pressure, and at the same time takes place through the further conveying path of the inlet region, a support on the underside of the workpiece.

In a further embodiment, the further upper pressure and the further conveying path of the inlet region are independently adjustable in height. By adjusting the height of the further conveying path of the inlet region, the removal provided by the processing unit of the inlet region can be set.

In a further embodiment, the further upper pressure of the inlet region is in each case provided with a multiplicity of roller elements. Alternatively, the additional upper pressure may have one or more belt or chain elements. If several belt or chain elements are provided, these run parallel to the direction of passage.

Furthermore, it is provided in particular that the at least one first processing unit and the at least one second processing unit are planing tools and / or grooving tools. With these, the upper or lower main side of a workpiece can be processed. The planing tools are used for a flat material removal, while with a slot tool, for example, a stress relief groove is introduced into a main side of a workpiece. Furthermore, the tools mentioned also include milling tools and saws.

In a further embodiment, it is provided that the at least one first processing unit of the inlet region comprises a plurality of tools arranged in the direction of passage. For example, with these, the main sides of the workpieces can be removed step by step, or there are successively different types of processing, in particular machining operations such as planing, grooving, grinding, sawing or milling.

Preferably, the second processing unit of the inlet region is provided in the direction of passage between the further conveying path of the inlet region and the conveying path of the narrow surface or profiling processing region. Thus, the machined by the at least one second processing unit workpiece is largely supported by the chain conveyor.

Further, it is preferably provided that the second upper pressure is provided above the second processing unit, and with the further chain conveyor of the inlet region and the conveying path of the narrow surface or Profilierungsbearbeitungsbereichs a passage gap is formed.

Brief description of the drawings

1 is a schematic side view of a preferred embodiment of the device according to the invention

Detailed Description of the Preferred Embodiments

1 shows a schematic side view of a preferred embodiment of the present device. The passage direction is in 1 indicated by an arrow.

In the 1 The processing device shown comprises an inlet region A and a narrow surface or profiling processing region B. The inlet region A and the narrow surface or profiling processing region B are in the illustrated embodiment via a common frame 1 connected with each other. However, they can also each have separate racks, which are arranged such that during operation of the processing device, a continuous flow of material can take place.

In the narrow area or profiling processing area B, which is a so-called double end tenoner, is a circulating conveyor track 2 provided, which detects a workpiece on its underside and along several possibly pivotable narrow-surface or Profilierungsbearbeitungsaggregate 3a and 3b passes. The conveyor track 2 may have one or more conveyor strands. Particularly preferred are two parallel conveyor strands. Furthermore, it may be at the conveyor track 2 to act at least one chain conveyor, a belt conveyor or a roller conveyor.

For narrow-surface or profiling machines 3a and 3b These may be profile milling or profile grinding devices, for example. With the narrow surface or profiling machining units 3a and 3b Workpieces are processed in a lateral edge area. This concerns in particular the narrow side of a workpiece, but possibly also partially its main sides.

Above the conveyor track 2 is an endless circulating top pressure 4 provided such that between the conveyor track 2 and the top pressure 4 a gap is formed for a workpiece.

The inlet area A of the device according to the invention comprises a second conveyor track 10 in a direction of passage of a workpiece in front of the first conveyor track 2 is arranged. The second conveyor 10 can be a workpiece as well as the first conveyor 2 support at the bottom and convey in the direction of passage. The conveyor track 10 comprises at least one conveyor line, preferably two conveyor lines.

Furthermore, in the inlet region A, a first upper roll pressure 11 and a second roll overprint 12 provided, which are spaced apart in the direction of passage of a workpiece, and in each case a plurality of roller elements 11a . 12a exhibit.

The first roll overprint 11 as well as the second roll overprint 12 are independently movable in a vertical direction so as to be between the second conveyor track 10 and the first or second roll upper pressure 11 . 12 to form a gap for a workpiece. In addition, the second conveyor is 10 so on the frame 1 attached that also the second conveyor 10 can be moved in a vertical direction.

The first roll overprint 11 and the second roll upper pressure 12 are spaced apart in the direction of passage of a workpiece. The rollers of the first and second upper rolls pressure may be partially driven. However, they may also be non-driven rollers. In the thus formed area between the first roll upper pressure 11 and the second roll upper pressure 12 are processing units 13 provided that can process a workpiece from the top. However, it can be seen that in the context of the present invention, only an upper processing unit 13 can be provided. In the in 1 The example shown is the first upper processing unit in the direction of passage 13 provided with a planing tool, and arranged in the direction of passage below, second upper processing unit 13 is provided with a grooving tool for introducing relaxation grooves in a workpiece.

In addition, the second conveyor is 10 such from the first conveyor track 2 spaced in that between the first conveyor track 2 and the second conveyor track 10 trained area a lower processing unit 14 may be provided to process workpieces from a bottom.

Between the lower processing units 14 for machining a second main side of the workpiece and the conveyor track 2 is a support role 16 , and between the lower processing unit 14 and the further conveyor 10 is another supporting role 15 intended. With these, a continuous support of a workpiece can be achieved. The support rollers 15 . 16 can be driven. Also, in addition to the in 1 shown support rollers 15 . 16 a plurality of support rollers may be provided on one side of the lower processing unit. Instead of the support rollers and rigid elements can be provided over which slides a workpiece in the direction of passage.

It will be appreciated, however, that more than one support roller on each side of the lower processing unit 14 can be provided to guide the workpiece in the region of the lower processing unit 14 to enable. In other embodiments, it may also be suitable, none or only a support roller on a side next to the processing unit 14 provided.

The machining of a workpiece is carried out as described below. A workpiece enters the inlet area or is inserted into the inlet area, so that it passes through the second conveyor track 10 and the first roll overprint 11 is moved in the direction of passage. This is due to the adjustment of the second conveyor track 10 through the height adjustment mechanism 3 in a vertical direction, the removal height by the lower processing unit 14 set. The first roll overprint 11 is also adjustable in a vertical direction, and can be adapted to the workpiece to be machined. The adjustment of the second upper roll pressure takes into account the intended removal by the first processing units 13 at the top of the workpiece.

After the workpiece the first processing units 13 it is at the top of the second roll upper pressure 12 recorded or supported and on the between the first conveyor track 2 and the second conveyor track 10 trained area led. In this case, the workpiece lies in this area of the second processing unit 14 is processed, at least either the first or second conveyor track 2 . 10 on, and becomes through this and the second roll upper pressure 12 during processing.

Between the lower processing units 14 for machining the second main side of the workpiece and the conveyor track 2 is a support role 16 intended. Further, between the lower processing unit 14 and the further conveyor 10 another support role 15 intended. With these, a continuous support of a workpiece can be achieved.

Subsequently, the workpiece passes over the first conveyor track 2 in the narrow area or profiling processing area B, and is machined in this area at an edge area.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202006020304 U1 [0006, 0006]

Claims (14)

Machining device for machining preferably plate-shaped workpieces, which in particular comprise, at least in sections, wood, wood-based materials, composites or plastic, particularly preferably solid woods, comprising: a narrow-surface or profiling machining area (B) with a conveyor track (FIG. 2 ), a top pressure ( 4 ) and a tool for narrow surface and / or profiling processing ( 3a . 3b ), characterized in that the processing device has an inlet region (A), wherein the inlet region (A) has a further conveying path (A). 10 ) as well as another upper pressure ( 11 . 12 ), and in the region of the inlet region (A) at least a first processing unit ( 13 ) for machining a first main side of a workpiece, and / or at least a second processing unit ( 14 ) is provided for processing a second main side of the workpiece. Machining device according to claim 1, wherein the inlet region (A) as a further upper pressure a first and second upper pressure ( 11 . 12 ), and the at least one first processing unit ( 13 ) in the direction of passage between the first and second upper pressure ( 11 . 12 ) is provided. Machining apparatus according to claim 2, wherein the first and second top pressures ( 11 . 12 ) as well as the further conveyor track ( 10 ) of the inlet region (A) are independently adjustable in height. Processing device according to one of claims 1-3, wherein the further upper pressure ( 11 . 12 ) each having a plurality of roller elements. Processing device according to one of claims 1-3, wherein the further upper pressure ( 11 . 12 ) each having one or more belt or chain elements. Machining device according to one of the preceding claims, wherein the at least one first processing unit ( 13 ) and the at least one second processing unit ( 14 ) Are planing tools and / or grooving tools. Machining device according to one of the preceding claims, wherein the at least one first processing unit ( 13 ) comprises a plurality of tools arranged in the direction of passage. Machining device according to one of the preceding claims, wherein the at least one second processing unit ( 14 ) in the direction of passage between the further conveyor track ( 10 ) of the inlet area (A) and the conveyor track ( 2 ) of the narrow surface or profiling machining area (B). Processing device according to one of claims 2-7, wherein the second upper pressure ( 11 . 12 ) above the at least one second processing unit ( 14 ) is provided, and with the further conveyor track ( 10 ) of the inlet area (A) and the conveyor track ( 2 ) of the narrow area or profiling processing area (B) forms a passage gap. Machining device according to one of the preceding claims, wherein between the at least one second processing unit ( 14 ) for machining a second main side of the workpiece and the conveyor track ( 2 ) a support element ( 16 ), in particular a support roller ( 16 ), and / or the at least one second processing unit ( 14 ) for processing a second main side of the workpiece and the further conveyor track ( 10 ) another support element ( 15 ), in particular a further supporting role ( 15 ), is provided. Machining device according to one of the preceding claims, in which the narrow surface or profiling machining region (B) and the inlet region (A) are mounted on a common frame ( 1 ) are provided. Method for processing preferably plate-shaped workpieces, which in particular comprise, at least in sections, wood, wooden materials, composites or plastic, particularly preferably solid woods, with the steps: conveying a workpiece in an inlet region (A), wherein the inlet region (A) forms a further conveyor track (A) 10 ) as well as another upper pressure ( 11 . 12 ), machining at least one main side of the workpiece in the inlet region (A), conveying the workpiece in a narrow surface or profiling processing region (B) with a conveyor track ( 2 ), a top pressure ( 4 ) and a tool for narrow surface and / or profiling processing ( 3a . 3b ) Edit at least one edge region of the workpiece in the narrow surface or profiling processing area (B), in particular a narrow side of the workpiece. The method of claim 12, wherein machining at least one major side of the workpiece in the lead-in area comprises: machining a first major side of the workpiece, and subsequently machining the second major side of the workpiece. A method according to claim 12 or 13, wherein the at least one major side of the workpiece various operations is subjected, in particular planing, milling, sawing and / or grinding.

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