DE102011122687A1 - Method and device for equipping a multilayer solid wood composite component with a respective even-numbered board layer - Google Patents

Abstract

In order to create a solid wood composite component (14) such as a prefabricated wall element, the problems with handling long boards (12m), which are pivoted to the boards (12n) of an already created board layer (13.n) to be applied to them to escape, an odd-numbered layer (13.n) made of boards (12n) already connected along the side is taken over by a movable assembly table (16) and placed under a cross conveyor (21) for the boards (12m) of the next, now even-numbered layer (13 .m), which are successively applied to the existing layer (13.n) and nailed to it immediately from a stationary portal (25). Where recesses (11) are specified in the odd-numbered layer (13.n), the boards (12m) for the even-numbered layers (13.m) are trimmed to successive partial boards (12mm) which are coaxially simultaneously, corresponding to the gap, by the cross conveyor (21) are applied to the uppermost odd-numbered layer (13.n). The loading of the cross conveyor (21) with the boards (12m) or with the sequence of partial boards (12mm) for the even-numbered layers (13.m) takes place, without turning requirements, in the mature transport and positioning technology of the joinery systems by means of a miter saw (30) equipped longitudinal conveyor (29). In this way, solid wood composite components (14) of practically any size can be produced at an extremely high cycle rate, and without the occurrence of hazardous waste for the opening of window and door recesses (11).

Description

The invention relates to methods and apparatus according to the preambles of the main claims.

Such solid wood composite components are from the DE 20 2006 005 108 U1 for the prefabricated house previously known, namely as roof, ceiling and in particular wall elements. Thereafter, a first (and consequently each odd-numbered) layer of adjacent boards is held together on a mounting table by means of a first longitudinally engaging tensioning device and then another such layer of boards also parallel to each other, pivoted relative to the already located below board position, placed and held together by a second such tensioning device; whereupon a jumper equipped with nailing machines moves over this topmost layer to nailing it to the underlying board layer. This repeats for at least a third board position. Usually two successive, nailed-together board layers are oriented orthogonal to each other. Because a final Glatthobeln the surface of the thus created composite component can shear off the heads of nails, are used for connecting the two uppermost board layers together, pins with their shafts offset along circumferential beads.

Apparat problematic is the mastery of the deflections and vibrations in the program-controlled handling of each successively to a position next to abzustegenden long boards, which must be successively removed from a material buffer and before their positionally precise settling on the previously topmost layer of their boards against also still defined must be pivoted , Apart from the time required, this problem in practice limits the height or length of such solid wood composite components to typically a magnitude of up to a maximum of six meters, even longer boards are no longer manageable; which is why, for example, for longer walls, such composite components at the assembly site still have to be complexly assembled with further such composite components. The, for nailing the two currently topmost boards layers to each other on the composite component to be moved bridge with its nailer together with their nail reservoirs represents a very large mass, which is why the bridge for computer-controlled start of precisely specified nail positions not accelerated very quickly and again can be slowed down, which limits the production cycle in addition to the handling problems of long boards. A particular problem it also represents that when clearing windows and doors from such, to be used as external walls, composite components incurred considerable amounts of interspersed with pins waste wood. This must not be burned easily; this is hazardous waste, which the builder (or the manufacturer) must dispose of costly.

In recognition of such problems, the present invention is based on the technical problem of being able to produce solid wood composite components of the generic type technologically without problems and with a high cycle rate even in much greater lengths, at the same time hazardous waste is at least reduced, preferably not incurred.

This object is achieved according to the essential features specified in the main claims. Thereafter, a programmatically in its plane and transversely to its plane movable assembly table is provided, on which a first layer of boards, which are already connected to each other along the longitudinal side, such as glued, are handed over in the board transverse direction. The assembly table equipped in this way then travels transversely to this picking direction until below the delivery end of a transverse conveyor that it applies the first board of the second board layer to the edge of the first board layer which is still projecting under the cross conveyor. The angular position of this board relative to the boards of the underlying layer is adjustable over the course of the delivery end of the cross conveyor; Usually the board layers are oriented orthogonal to each other.

The thus applied first board of the current even-to-create position is nailed to the already underneath odd position by means of pins or staples. For this purpose, the assembly table programmatically stepwise in the longitudinal direction of this board - be moved under a portal at a sufficiently wide board in the transverse direction - which is installed stationary behind the delivery end of the cross conveyor and equipped with at least one nailing machine including its reservoir. It is more expedient, however, to move the nailing machine or nippers along its stationary portal, that is to say along the board currently being applied and with the underlying layer to be boarded, which has been positioned for this purpose from the assembly table under the nailing machines.

If the currently applied board is nailed to the previously upper layer, the assembly table moves by the width of the next board at a distance from the delivery end of the cross conveyor, and the next board is applied by the cross conveyor in front of the just boarded board and pushed under the nailing machines; and so on, until the previously highest, odd position one after the other with the boards of this even-numbered layer completely occupied and nailed.

Since for nailing the respective board at predetermined positions now only the at least one nail machine must be moved, neither the large mass of the assembled assembly table nor the bulk of the portal with his nailing equipment, the individual boards of the topmost layer can successively in very high Clock rate can be nailed to the underlying board location. Also, the supply of boards from a material buffer in its longitudinal direction to the cross conveyor and there in an exact positioning (for transfer to the assembly table) is - as familiar from the technology of joinery - in extremely high clock rate possible. Due to the lack of turning requirements and sagging of boards, there are no kinetic problems that slow down the working cycle in this handling, the mere longitudinal transport to the cross conveyor with subsequent transverse shifting from the cross conveyor to the assembly table.

The gradual movement of the occupied assembly table below the delivery end of the cross conveyor to a position in which the next board is delivered before the just nailed board, without any special handling requirements directly to the fact that the next board already in the appropriate position right next to the nailed nailing Brett comes to rest. For boards of different width, the width of the board now to be applied is measured by means of photocells or laser scanning before or on the cross conveyor for each required positioning of the assembly table behind the delivery end of the cross conveyor, whereby the currently nachzuliefernde board just alongside again against the previously nailed board the currently created even-numbered board position is present.

Conveniently, for the application of the first board of an even-numbered position of a transverse movement of the cross conveyor out stopping stop stop on the mounting table provided. The respective follow-up board of this even-numbered layer then runs with its kinetic transfer energy against the previously rigidly positioned by its nailing board, creating a dense packing is guaranteed. If, for example, under the cross conveyor or the nail portal, a stationary straightening stop is set up, the corresponding lowered assembly table with the just applied board can be moved against it, just before nailing him intimately alongside to the previously nailed board.

After the current even-numbered layer of planks is successively nailed to the underlying odd-numbered layer of already-connected boards, the assembly table becomes the takeover of the parallel fabricated, now postponed next odd-numbered layer (again from already interconnected boards) by the strength of that recent even-numbered board layer lowered and retracted.

This new location is now boarded up with the even-numbered board location underneath. This can be done first over the entire area of this odd position by the assembly table is moved under the nail portal from one to the next board of the youngest even-numbered layer; before again using the transverse conveyor the loading just described with the board sequence for the next even-numbered position. However, it is kinematically more favorable to nailing the current odd-numbered position with the even-numbered layer underneath it only along the length of the board which is being applied just for the next even-numbered layer. However, pins or double-penetration length pegs would have to be inserted specifically if this nailing was to occur through the current board and the top odd-numbered layer into the youngest even layer. Therefore, preferably at the position of the next board of the currently emerging even-numbered position, the odd-numbered layer is nailed to the even-numbered underneath, and then the board for the current even-numbered layer as described above is applied to this nailspare and nailed to the odd-numbered layer.

Advantageously, a chop saw is installed in the course of the longitudinal conveyor for loading the cross conveyor, which initially performs a frontal cut on the board delivered from the material buffer in the longitudinal direction and then trims the board to the length which is predetermined by the length of the composite component, in particular by the number of Planks of known width in the odd-numbered plank layers. If the composite component is used as a wall element, then this length corresponds to the length of the wall of preconnected so-called vertical or vertical boards in the odd-numbered layers and successively applied and perforated so-called horizontal or horizontal boards in the even-numbered layers.

If a long side to be supplied from the material buffer on the longitudinal conveyor to the cross conveyor board does not reach this predetermined length, a part board of the additional length is fed to the cross conveyor immediately after the trimming cut. The then passes on the front end on impact adjacent boards at the same time on the odd, currently topmost position on the assembly table, so that this position is occupied again over its entire length, now the front side composed of two part boards.

Thus, the front side flush joint of the now composed of partial boards longitudinal board and its positioning are ensured, the cross conveyor is conveniently equipped in its front, the supply area with a positioning device. The immaterial can be realized as a position control on the longitudinal conveyor, or material as about adjustable end or positioning stop against which the first part board anfährt and is supported when starting the subsequent second part board; before then both sub-boards are positioned so coaxially at the same time from the cross conveyor to the topmost (odd-numbered) board position on the assembly table.

If the odd-numbered layers are delivered in their pre-connected standing boards with recesses or similar openings for the composite component to be created, such as windows or doors in wall components, then these recesses are also cleared in the even-numbered layers. For this purpose, the longitudinal conveyor sub-boards are provided in longitudinal alignment now not on impact, but on the gap in the feed area and transferred from the cross conveyor to the current upper, odd-numbered position. These gaps are (as viewed in the longitudinal direction of the boards of the even-numbered layers) as long as predetermined by the respective recess in the odd-numbered layer. For mutually positioning these sub-boards, a plurality of positioning devices of the aforementioned type are provided offset along the feed area, such as material positioning stops, some of which are moved programmatically in the feed area in front of the cross conveyor in successive feed the trimmed part boards. Thus, gaps of predetermined lengths between axially adjacent part boards are ensured for their simultaneous transfer by means of the cross conveyor, to possibly follow again boards over the entire length of the odd-numbered layer.

The nail portal may additionally be equipped with a cutter to rework the inner edges of the door and window openings in such a wall element; the accumulation of chips is correspondingly low, in particular no hazardous waste is generated. It is more expedient, however, to transfer this compound component already created with its openings for such reworking to a separately operated tool robot in order to have the assembly table available again as quickly as possible for receiving the first layer of the next wall element or the like composite component.

Additional modifications and developments of the solution according to the invention will become apparent from the other claims and, also with regard to their advantages, from the following description of a preferred implementation example for creating a multilayer wall element than the solid wood composite component. The sole figure of the drawing, sketched out of scale to the functional essentials, shows the occupation of a prefabricated openwork odd-numbered board position with the boards of an even-numbered layer, omitting the openings defined by the first (lowermost) layer.

One - in this example trap with window and door recesses 11 equipped - from longitudinally form- or cohesively interconnected standing lamellae or boards 12n prefabricated, odd-numbered boards 13.n (starting with n = 1) of a multilayer solid wood composite component 14 is by means of a transport unit 15 in the form of a sliding or roller table or a transfer bridge on a mounting table 16 to hand over. In its plane and transversely to its plane, it can be moved continuously or discontinuously under program control. He drives across to the transfer direction 17 with the resting first board situation 13.n (n = 1) against at least one stationary straightening stop 18 before, to this prefabricated location 13.n , against this Vorbewegung against table-fixed support stops 19 and thus defined on the assembly table 16 align.

Then, if necessary, the mounting table 16 around the board thickness of the next, now even-numbered board position 13.m lowered (starting with m = 2). The first board 12m this next situation 13.2 is by means of a cross conveyor 21 beyond its backward delivery end 22 out, across the boards 12n the first location 13.1 oriented, to that odd situation 13.1 applied. The assembly table 16 has moved back to a position that at least the width of the boards 12m behind the delivery end 22 of the cross conveyor 21 lies. This preferably has a sloping sliding bed 23 under at least one, preferably as outlined below a plurality of mutually adjacent, circumferential drive belt 24 on. Due to its kinetic energy moves the first of the boards 12m about the situation 13.1 away until it rests against the support stops 19 , This can be done by temporarily tilting the mounting table backwards 16 It may be more convenient, however, the exact orientation of this first of the boards 12m if necessary, ensure that the assembly table 16 now with this first board 12m once against the stationary attacks 18 before and then to nail the board 12m with the location below 13.n is driven back again.

This will be this board 12m by means of the program-controlled assembly table 16 below one behind the cross conveyor delivery finish 22 stationary provided portal 25 positioned, with at least one here called nailing machine 26 including storage container 27 for his pins (nail) or staples (staples) is longitudinally movable equipped. The nailing machines 26 be on the portal 25 programmatically along the currently positioned, currently boarded board 12m method. The assembly table 16 can the board 12m then move forwards or backwards, if, with a wide board, an additional nail track should be drawn parallel to the previous one. This is how the board works 12m at all pre-programmed positions with the odd location underneath 13.n , positive and non-locking buckling proof, connected.

To accommodate the next following via the cross conveyor 21 redelivered of the boards 12m becomes the assembly table 16 then into the width of the boards 12m appropriate position behind the delivery end 22 of the cross conveyor 21 hazards. This next one of the boards 12m Leaning against the just nailed board 12m off and can by approaching the Richt-attacks 18 in addition to be pressed alongside, before it as described above under the portal 25 is nailed; and so on.

The individual boards 12m the even-numbered layers 13.m are successively, for example from a material buffer 28 isolated, on a longitudinal conveyor 29 handed over and on a chop saw 30 passed them to them after a clean forehead cut on those from the odd-numbered layers 13.n to trim the given length. How to cut the boards 12m successively, still stable on the longitudinal conveyor 29 lying, in the longitudinal direction up to an adjustable positioning stop 31 at the end of the feed area 32 of the cross conveyor 21 advanced. There will be this board 12m - if necessary after initial cross-impulse by means of a vibrator or a ruler - of the belt 24 taken and as described on the delivery end 22 on the odd position 13.n to hand over.

In the drawing sketch is taken into account that in the boards 12n the odd-numbered layers 13.n about a wall element freigesparte recesses 11 not by boards to be nailed over 12m the next location 13m should be closed again. Therefore, the corresponding boards 12m not applied in one piece, but - by means of the chop saw 30 trimmed - as mutually axially spaced partial boards 12mm , The, the width of a recess 11 corresponding, clear distance between axially adjacent part boards 12mm is programmatically in the feed area 32 of the cross conveyor 21 protruding further of the positioning stops 31 guaranteed. The so distant parts boards 12mm then be simultaneously from the straps 24 of the cross conveyor 21 recorded and on the location 13.n to hand over. The movement of nailing machines 26 is then controlled so that it only over the lengths of the sub-boards 12mm under the portal 25 come to effect.

If so the location 13.2 from boards 12m successively over the cross conveyor 21 on prefabricated position taken 13.1 applied and under the nail portal 25 is connected to her, drives the assembly table 16 all the way back to the next odd-numbered position made meanwhile 13.n + 2 = 13.3 on the situation just created 13.m (m = 2). Then cross process under the portal 25 this will be new odd location 13.3 there with the preceding even-numbered position 13.2 where then the first board 12m the next location 13.m (m = 4) applied and with the location 13.3 is nailed; and so on.

In the same way, at least one other pair of layers 13n - 13m be applied. That from the given, usually odd number of layers 13n + 13m + 13n finished composite component 14 is then delivered to possibly only a slight finishing of the inner edges of the recesses 11 z. B. by means of a milling robot.

To create a solid wood composite component 14 such as in particular a prefabricated house wall element the problems in handling long boards 12m that pivoted against the boards 12n an already created board situation 13.n To be applied to this, to escape, so according to the invention is an odd number 13.n from already alongside each other vorverbundenen so-called standing boards 12n from a three-axis movable assembly table 16 taken over and under a cross conveyor 21 for the so-called lying boards 12m the next, now even-numbered situation 13.m proceed in succession to the existing situation 13.n applied and nailed with her at once. To the problems of moving large masses like one with nails 26 along with their stockpiles 27 The board that is currently being boarded up will be bypassed if it is equipped with a movable, movable bridge 12m - and later the next adopted odd position 13.n + 2 at the position of a board to be applied 12m - by means of the assembly table 16 under the length of the board 13m movable nailing machine 26 a stationary portal 25 method. Where in the odd location 13.n recesses 11 are given, the boards are 12m for the even-numbered layers 13.m to distant successive part boards 12mm trimmed, coaxial at the same time, corresponding to gap, from the cross conveyor 21 on the current odd-numbered position 13.n be applied. Loading the cross conveyor 21 with the boards 12m or with the consequence of partial boards 12mm for the even-numbered layers 13.m takes place without turning requirements in the advanced transport and positioning technology of the joinery by means of a chop saw 30 equipped longitudinal conveyor 29 , Thus, due to the inventive measures solid wood composite components 14 produce almost any size in extremely fast cycle rate, and without the accumulation of hazardous waste for subsequent insertion of window and door recesses 11 ,

LIST OF REFERENCE NUMBERS

11

Recess (in 13n . 14 )

12

Boards (standing 12n , lying 12m )

13

Layers (odd 13.n , even-numbered 13.m ) out 12n - 12m

14

Composite component (out 13.n and 13.m )

15

Transport unit (for 13.n out 12n , to 16 )

16

Assembly table (for 13 . 14 )

17

Transfer direction (for 13.n from 15 to 16 )

18

Straightening stop (under 21 )

19

Support Stop (on 16 )

20

21

Cross conveyor (for 12m . 12mm )

22

Delivery end (behind 21 , to 16 With 13.n out)

23

Sliding bed (from 21 )

24

Belt (over 23 )

25

Portal (stationary behind 22 )

26

Nailing machine (on 25 )

27

Storage memory (for 26 at 25 )

28

Material buffer (before 29 , For 12m )

29

Longitudinal conveyor (for 12m . 12mm )

30

Chop saw (in the course of 29 For 12m . 12mm )

31

Positioning stop (at 32 , For 12m . 12mm )

32

Feed area (before 21 , For 12m . 12mm )

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 202006005108 U1 [0002]

Claims (10)

Method for equipping a multilayer solid wood composite component ( 14 ) with an even-numbered layer ( 13.m ) oriented parallel to each other, opposite the boards ( 12n ) of the preceding odd-numbered position ( 13.n ) pivoted boards ( 12m ) under frictional and positive connection of each successive layer pairs ( 13.1 + 13.2 . 13.2 + 13.3 ) by means of a nailing machine ( 26 ) on a mounting table ( 16 ), characterized in that on the assembly table ( 16 ) an odd position ( 13.n ; n = 1, 3, ...) from interconnected boards ( 12n ) and below the delivery end ( 22 ) of a cross conveyor ( 21 ) for pivoted against the boards ( 12n ) oriented boards ( 12m ) of an even-numbered board layer ( 13.m ) successively to the uppermost odd-numbered position ( 13.n ) and in each case with this at a stationary portal ( 25 ) behind the cross conveyor ( 21 ) until an even position ( 13.m ; m = 2, 4, ...) is reached, to which the meanwhile created next of the odd-numbered layers ( 13.n + 2 = 13.3 ) and at the portal ( 25 ) with the boards ( 12m ) of the underlying even layer ( 13.m = 13.2 ), the sequence of boards trimmed to length ( 12m ) by means of a longitudinal conveyor ( 29 ) in front of the cross conveyor ( 21 ) is delivered. Method according to the preceding claim, characterized in that the assembly table ( 16 ) temporarily until against a stationary straightening stop ( 18 ) for the odd-numbered layers ( 13.n ) or for the successive boards ( 12m ) of an even position ( 13.m ) is driven forward. Method according to the preceding claim, characterized in that the assumed odd-numbered position ( 13.n ) and then the first of the boards ( 12m ) of the next even position ( 13.m ) against a mounting table fixed support stop ( 19 ) are pushed back. Method according to one of the preceding claims, characterized in that the assembly table ( 16 ) with the already on the odd position ( 13.n ) nailed first board ( 12m ) to take up the next of the boards ( 12m ) to a position behind the delivery end ( 22 ) of the cross conveyor ( 21 ), the width of the follower board ( 12m ) in front of the previously nailed board ( 12m ) corresponds. Method according to one of the preceding claims, characterized in that the longitudinal feed of the board ( 12m ) into the feed area ( 32 ) of the cross conveyor ( 21 ) until a material or immaterial positioning stop ( 31 ) he follows. Method according to one of the preceding claims, characterized in that a lying board ( 12m ) in several simultaneously in the cross conveyor ( 21 ) handed over, frontally successively shorter trimmed part boards ( 12mm ) is divided. Method according to the preceding claim, characterized in that by means of the supply area ( 32 ) of selectively activatable material or immaterial positioning placards ( 31 ) front side successive part boards ( 12mm ) at an axial distance above the cross conveyor ( 21 ) to the currently upper odd-numbered position ( 13.n ) are applied. Device for carrying out the method according to at least one of the preceding claims for loading a solid wood composite component ( 14 ) with even layers ( 13.m ) of boards oriented parallel to one another ( 12m ), at a pivoting angle with respect to the preceding odd-numbered position ( 13.n ) parallel to each other boards ( 12n ), on a mounting table ( 16 ) and for nailing the board layers ( 13.n . 13.m ), characterized by a movable and lowerable assembly table ( 16 ) for picking up prefabricated odd-numbered layers ( 13.n ) of prefabricated boards ( 12n ), by a longitudinal conveyor ( 29 ) for the boards ( 12m ) of the even-numbered layers to be formed therebetween ( 13.m ), by a cross conveyor ( 21 ) for these successively to an odd position ( 13.n ) boards to be applied ( 12m ), as well as by a stationary, with it movable nailing machine ( 26 ) equipped portal ( 25 ) to form an even layer ( 13.m by successively nailing the successive to the uppermost odd-numbered position ( 13.n ) applied boards ( 12m ) with this position ( 13.n ). Device according to the preceding claim, characterized in that the assembly table ( 16 ) with at least one support stop ( 19 ) and the cross conveyor ( 21 ) with at least one straightening stop ( 18 ) for the boards ( 12 ) on the assembly table ( 16 ) as well as with at least one positioning stop ( 31 ) for the over the longitudinal conveyor ( 29 ) supplied boards ( 12m ) or partial boards ( 12mm - 12mm ) Is provided. Device according to one of the two preceding claims, characterized in that between a material buffer ( 28 ) and the cross conveyor ( 21 ) in the course of the longitudinal conveyor ( 29 ) For the boards ( 12m ) of the even-numbered layer ( 13.m ) at least one chop saw ( 30 ) is provided.

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