DE8314268U1 - DEVICE FOR ALIGNMENT, CENTERING AND FEEDING OF LONG WOOD PARTS - Google Patents

Description

lä nglichen wooden parts

The invention relates to a device for aligning, centering and feeding elongated wooden parts according to the preamble of claim 1.

So far, elongated wooden parts for feeding to a processing machine were manually on a longitudinal conveyor aligned, using suitable stops or a sense of proportion with and without light crosses as an aid were used as an aid.

10

This type of alignment is time consuming with high Associated with personnel costs and does not guarantee optimal wood utilization.

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Bank Berliner 3ank AG Kontc-Nr. 59 22? 00028. (BUZ 1Q0? 0C 00) ,, Postal check Berlin West. Account number. 164053-106

Patent attorney; Dipi.-lfj! <^ Dr. Midhaei Maikowski

To the SctirlftMü from 05/11/1983 ^sheet

It is therefore an object of the present invention to provide a To create device of the type mentioned, with the automatic alignment of the elongated wooden parts with wood savings by setting an optimal Reference line is enabled.

This task is characterized by that in claim 1 Invention solved, d. H. in that the longitudinal conveyor consists of several parallel in the longitudinal direction Endless inverted tooth chains arranged in relation to one another are formed by deflecting devices in inverted toothed chain sections are divided that between the individual inverted tooth chain sections in the area of the deflections vertically up and down movable cross conveyor chains are arranged that probe elements to define a reference line provided in the longitudinal direction of the longitudinal conveyor are that the cross conveyor chains from the probe elements controllable and that switches are provided for switching on the cross conveyor chains.

The device is suitable for the automatic alignment, centering and feeding of square timber, models, untrimmed as well as trimmed board goods to downstream processing machines, such as multi-blade circular saws, Recut double-shaft circular saws, partition saws, double hemmers, planing machines and the like .

The wooden part to be aligned or centered must be attached to the device individually, for example by transverse transport fed from the side. The device consists of a longitudinal conveyor device with both

inter2anm.

: '": (f ^> ateptan>va3t'Ö5) f.-ing., D"r; Michael Maikowski

Font of ⁿ ° 5 I983 BIaIt

for example four inverted tooth chains and a cross conveyor device with, for example, six cross conveyor chains, which cross the longitudinal chains and can be raised and lowered. The number of inverted tooth chains will depend on the width, possibly also different widths of the wooden parts to be processed. Depending on the length of the wood, which is automatically detected by the switch, the transverse alignment of the workpiece is carried out by the Tste and the last cross conveyor chain of the cross transport resulting from the wood length. For alignment of the respective wooden part, regardless of the number of existing cross conveyor chains, there are always only two cross conveyor chains required, controlled. The inverted tooth chains of the longitudinal conveyor have pointed drivers, see above that the aligned position of the workpiece is exact until it is inserted into the subsequent processing machine preserved.

According to an advantageous embodiment of the invention, the probe elements are in the form of one on a longitudinal side the longitudinal conveyor arranged stop formed.

If the elongated wooden part or workpiece comes against this stop, the movement of the active cross conveyor chains is interrupted, the cross conveyor chains are lowered, whereupon the longitudinal conveyor chains engage the workpiece and feed it to the processing machine.
30th

This embodiment can be used in an advantageous manner trimmed workpieces, d. H. for workpieces with a

inter2anm.

• lit Il <

Patent attorney "Dip! .- FrIg. Dr. Michael Maik

On the brief of 11-05-1983 _{B | att}

relatively straight side edge can be used.

If untrimmed workpieces are to be aligned, so it is advantageous that the pushbutton elements are used as light

Γ barriers are trained. These light barriers detect the workpiece only at certain points, whereby irregularities of the side edges are averaged, so that an optimal alignment of the workpiece along a reference line is guaranteed.

In a further advantageous embodiment of the invention, the longitudinal conveyor device is at the end in the conveying direction a hold-down device is provided. As a result, the once aligned position of the workpiece is also achieved ensured when inserting the front part of the workpiece into the downstream processing machine.

As already mentioned above, the alignment of models or untrimmed workpieces takes place automatically via the light barriers that control the cross chains and convey the workpiece onto a reference line. For example, this reference line is drawn through the rightmost one Saw blade fixed. The advantage of the automatic alignment is that a maximum wood yield is achieved will. In contrast, the centering takes place according to a center line of the saw package, the cross chains the Transport the workpiece, for example a model, into the feed level. Centering can be done by left and probe elements attached to the right of the workpiece or mechanically by means of simple arms that can be folded up onto the workpiece from both sides. After centering the longitudinal transport takes place in the following loading

interZanm.

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Patdntariwait ¹ WpI. _: mp. Dr. Michael Maikowski

On the submission of May 11, 1983 ^Bla «

working machine.

One embodiment of the present invention is shown in the drawing and will be described in more detail below. Show it:

1 shows a schematic side view of the device for aligning and centering;

FIG. 2 is a schematic plan view of the device of FIG. 1;

3 shows a schematic sectional view of the device from FIGS.

In the drawing is a device 10 for aligning, centering and feeding elongated Wooden parts shown. The device comprises a frame 38 on which the longitudinal conveyor device is arranged. The longitudinal conveyor device comprises a plurality of inverted tooth chain sections 20, which are made in parallel arranged endless tooth chains 16 exist. Between the inverted tooth chain sections 20 there are several vertically and movable cross conveyor chains 22 are arranged. Probe elements in the form of a laterally arranged on the longitudinal conveyor Stop 30 or above the longitudinal conveyor arranged light barriers 32, 34 are used for control of the cross chains. At the entry end of the Ouerketten there are further switches 28 for putting the transverse chains into operation intended. In the preferred exemplary embodiment, the workpiece is fed by means of a cross conveyor 40. At the end of the longitudinal conveyor is a hold-down device

inter2anm.

l fatefitar ^ vajlt'Dipl.-lrig., Dr. Michael Maikowski

Zum SchrlftsaU from H · 05 · 1983 sheet

36 is provided in the form of a pressure roller 3 °.

The device for the automatic alignment, centering and feeding of elongated wooden parts works as follows.

An elongated piece of wood with a straight trimmed side edge I4 is by means of the cross conveyor 40 of the device z. B. fed in an inclined position. When it gets into the area of the cross conveyor chains, it operates the switches 28 one after the other, whereby the foremost operated chain and the rearmost confirmed cross conveyor chain corresponding to the length of the supplied piece of wood 12 are raised above the level of the longitudinal conveyor and switched on. The two cross conveyor chains 12, 22 convey the elongated wooden part 12 until it touches the stop 30 with the side edge I4. As a result, the transverse conveyor chains 22 are switched off and lowered, as a result of which the elongated wooden part 12 comes into engagement with the toothed chains l6 of the longitudinal conveyor device. The longitudinal conveying device conveys the elongated wooden part 12 in the direction of the subsequent processing machine l8, the hold-down device 36 holding the elongated wooden part 12 in its position.

If an elongated piece of wood 12 with an irregular side edge 14 by means of the cross conveyor 40 of the Device supplied, as in the case described above, the switches 28 are first operated, whereby the foremost cross conveyor chain and the rearmost one corresponding to the length of the wooden part 12 Conveyor chain can be raised and set in motion.

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_: pateftitar ^ wajlf Ojpr ^ frig .. Οζ. Michael Maikowski

On the brief from May 05, ^{1983, p}

- OK -

The conveyor chains convey the elongated wooden part 12 at a first high speed across the longitudinal conveyor device until the side edge 14 of the wooden part 12 reaches a first light barrier 32. As a result, the speed of the cross conveyor chain 22 assigned to this light barrier is lowered until the side edge reaches a second light barrier 34 which causes this conveyor chain to be switched off. The rear cross conveyor chain can continue to move until the side edge has also reached the light barriers 32 and 34 in this area. Several light barriers can also be provided up to the formation of a light curtain, whereby an exact averaging of the irregular side edge and thus a

IS optimal arrangement of the workpiece for further processing is achieved. Only when the light barriers 34 are reached from the side edge 14 of the workpiece 12, in In the present case, for example two, the associated cross conveyor chains are switched off and lowered and take over the inverted tooth chains l6 of the longitudinal conveyor the feeding of the workpiece 12 into the machining device 18. The endless inverted tooth chains l6 extend in a preferred embodiment over the entire length of the longitudinal conveyor device

? .5 during the operation of the device according to the invention always in motion, so do not need to be switched on and off and are only activated by one Drive device driven.

Several light barriers can also be used on both sides of the workpiece to center a workpiece be provided, whereby the lowering of the cross conveyor

inter2anm.

'; Patent attorney Oipi.llriß, de. Michael Maikowski

Üum brief from j | _# Q c

- 11 -

chains 22 is only carried out when the Corresponding signals can be emitted by the light barriers, which a correct alignment or a Ensure that the workpiece is optimally centered on the longitudinal conveyor.

inter2anm.

Claims (2)

dr. MICHAEL MAIKOWSKI Patentanwalt German Patent Office 8000 Munich 2 European Patent Representative European Patent Attorney Mandataire en breveta europöens Xantener Straße 10 D-1000 Berlin 15 Telephone 030/881 81 81 Z + 882 61 Telex 1 85 366 maiko d Telegrams: Maikopat - Berlin Your reference: Your ref. Subject: My reference: My ref. P 3/83 Il / sch Date: Date: H .05.1983 Applicant: Interholz Technik GmbH, 78ΟΟ Freiburg im Breisgau Device for aligning, centering and feeding elongated wooden parts 1. Device for aligning, centering and feeding elongated wooden parts on a longitudinal conveyor device for feeding the elongated wooden parts to a processing device, the elongated Wood parts fed to the longitudinal spring device and further conveyed after aligning in the longitudinal direction will, 10 characterized in that inter.anm Bank Berliner Bank AG, account no. 59 222 00028 (sort code 100 200 00) Postal check: Berlin West, account no. 1M053-106 I ": PateijtanivaKjDipi .'- lipG. Pr.:Mi*qhael Maikowski ι Sdirltteate from 11 · 0 5 · 1 9 8 3 sheets the longitudinal conveyor from several parallel in In the longitudinal direction of one another, endless inverted tooth chains (l6) are made by means of deflection devices are divided into inverted tooth chain sections (20) that between the individual inverted tooth chain sections (20) in the Cuer conveyor chains (22) which can be moved vertically up and down are arranged in the area of the deflections. that Tastelcmente are provided for defining a reference line (26) in the longitudinal direction of the longitudinal conveyor device are that the cross conveyor chains (22) can be controlled by the probe elements and that switch (28) for Switching on the cross conveyor chains (22) are provided. 2. Device according to claim 1, characterized in that the probe elements in the form of a on one long side of the Stop arranged in the longitudinal conveyor device (30) are trained. 3 device according to claim 1,
characterized in that the probe elements are designed as light barriers (32, 34). inter.anm Patent attorney DtplJ-lng: Dr. Michael Maik 2um Setirifieaü from ll.QC.ig8i 4 · Device according to one of claims 1 to 3> characterized in that at the end of the longitudinal conveyor in conveyor direction a hold-down device (36) is provided. inter.anm