CS272618B1

CS272618B1 - Device for accurate positioning cut-outs for veneer-peeling machine

Info

Publication number: CS272618B1
Application number: CS779988A
Authority: CS
Inventors: Jan Ing Valach; Vaclav Doc Ing Csc Hecl; Borislav Koci; Vladimir Lalik; Dusan Ing Cemsak
Original assignee: Jan Ing Valach; Vaclav Doc Ing Csc Hecl; Borislav Koci; Vladimir Lalik; Dusan Ing Cemsak
Priority date: 1988-11-28
Filing date: 1988-11-28
Publication date: 1991-02-12
Also published as: CS779988A1

Abstract

The device for exact positioning of cuts before the veneer peeling machine consists of two oppositely standing stands (13) equipped with centring elements (12) in the direction of the longitudinal axis with chucks (15) pivoted in revolving mechanism (14). Between the stands (13) there are two V-shaped arms (2), each of which is close connected with mechanism for the horizontal movement of the arm (2) arranged on the mechanism (3) for vertical positioning equipped with lifting mechanism (4) and arm (2) position sensor (7). Above the arms (2), on the track (18), there are moveably arranged arms (19) of the storage mechanism, above which there is a pair of photosensors (5, 6) and a camera (21).<IMAGE>

Description

Zariadenie na přesné polohovanie výrezov k lúpaciemu strojů '57) Zariadenie. na přesné polohovanie vý‘rezov před lúpacím strojom na dýhy pozostáva z dvoch oproti sebe umiestnených stojanov (13) opatřených centrovacími prvkami (12) v smere pozdížnej osi a upínacími vretenami (15) otočné uloženými v otáčacora mechanizme (14). Medzi stojanmi (13) sú umiestnené dve ramená (2) tvaru V, z ktorých každé je pevne spojené s mechanizmom (9) pře horizontálny posun ramena (2), uloženom na mechanizme (3) pre vertikálně polohovanie opatrenom zdvíhacím mechanizmom (4) a snímačom (7) polohy ramena (2). Nad ramenami (2) sú na dráhe (18) posuvné uložené ramená (19) ukladacieho mechanizmu, nad ktorými je umiestnené dvojica fotosnímačov (5, 6) a kamera (21).Apparatus for precisely positioning slots to peeling machines. For precisely positioning the slots in front of a veneer peeling machine, it consists of two opposing stands (13) provided with centering elements (12) in the direction of the longitudinal axis and clamping spindles (15) rotatably mounted in the rotary mechanism (14). Between the stands (13) are located two V-shaped arms (2), each of which is rigidly connected to the mechanism (9) over the horizontal displacement of the arm (2) mounted on the vertical positioning mechanism (3) provided with the lifting mechanism (4); by a sensor (7) of the arm position (2). Above the arms (2) on the track (18) there are displaceably mounted arms (19) of the storage mechanism, over which a pair of photographic sensors (5, 6) and a camera (21) are arranged.

CS 272 618 BlCS 272 618 Bl

Riešenie sa týká zariadenia na přesné polohovanie výrezov pre lúpacie stroje na dýhy.The solution relates to a device for precise positioning of cut-outs for veneer peeling machines.

U doteraz známých zariadení existuje niekoíko sposohov, ktoré využívajú princip mechanického polohovania - centrovania výrezov systémom vzájomne oproti sebe približujúcich sa ramien mechanicky spojených. Sú známe mechanické principy trojbodové, kde oproti sebe sa približujúce ramená sa dotýkajú výřezu v troch bodoch, alebo štvorbodové, kde centrovacie ložka obyčajne v tvare V sa pri centrovaní dotýkajú výřezu v štyroch bodoch. <Te známa tiež projekcia sústredných kružnic na želá výřezu, kde operátor sa snaží umiestnií čo najvačšiu plochu čela výřezu do sústredných kružnic, Všetky tieto systémy využívajú zariadenie, ktoré je náročné na mechanické vazby a synchronizáciu pohýbov, přitom presnosí polohovania - centrovania Je velmi ovplyvnená geometrickým tvarom výrezov, od ktorého závisí aj percento výčaže dýhy.In the prior art devices, there are several offsets that utilize the principle of mechanical positioning - centering the slots by a system of mechanically connected arms opposite one another. There are known mechanical principles of three-point, where the opposing arms contact the cut-out at three points, or four-point, where the V-shaped centering bearing touches the cut-out at four points when centering. <Also known is the projection of concentric circles on the cut-outs, where the operator tries to place as large an area of the cut-out face in the concentric circles. the shape of the cut-outs, on which the percentage of veneer weight also depends.

Tieto nedostatky rieši zariadenie pódia vynálezu, ktorého podstata spočívá v tom, že pozostáva z dvoch oproti sebe umiestnených stojanov, z ktorých každý je opatřený centrovacím prvkom v smere pozdižnej osi a upínacím vretenom otočné uloženým v otáčacom mechanizme. V priestore medzi stojanmi sú umieatnené dve ramená tvaru V, z ktorých každé je pevne spojené s mechanizmom pre horizontálny posun ramena. Tento je uložený na mechanizme pre vertikálně polohovanie, ktorý je opatřený zdvíhacím mechanizmom a snímačom polohy ramena. Nad ramenom je umiestnená dvojica fotosnímačov a na dráhe ukladacieho mechanizmu sú posuvné uložené ramená ukladacieho mechanizmu.These drawbacks are solved by a device according to the invention, which consists of two opposing stands, each of which is provided with a centering element in the direction of the longitudinal axis and a clamping spindle rotatably mounted in the rotary mechanism. In the space between the stands are located two V-shaped arms, each of which is rigidly connected to the mechanism for horizontal movement of the arm. This is mounted on a vertical positioning mechanism, which is provided with a lifting mechanism and an arm position sensor. Above the arm is a pair of photosensors and on the path of the storage mechanism are sliding mounted arms of the storage mechanism.

Výhodou zariadenia podlá vynálezu je, Že sa odstráni mechanický princip centrovania a zabezpečí sa přesné vycentrovanie výřezu v smere každej z .troch hlavných osí nezávisle od geometrického tvaru výřezu, pričom celý proces centrovania prebieha automaticky.An advantage of the device according to the invention is that the mechanical centering principle is eliminated and the center of the cut-out is precisely centered in the direction of each of the three major axes, irrespective of the geometrical shape of the cut-out, the entire centering process taking place automatically.

Na přiložených výkresoch je znázorněné zariadenie pódia vynálezu, a to na obr. 1 v schematickom bokoryse a na obr. 2 v schematickorn náryse.In the accompanying drawings, a device according to the invention is shown in FIG. 1 in a schematic side view and FIG. 2 in a schematic front view.

Ako je znázorněné na výkresoch, zariadenie pódia vynálezu pozostáva z dvoch .oproti sebe umiestnených stojanov 13. Každý stojan 1_3 je opatřený centrovacím prvkom J7 v smere pozdižnej osi a upínacím vretenom _15 otočné uloženým v otáčacom mechanizme Η. V priestore medzi stojanmi J3 sú umiestaené dve ramená 2 tvaru V, z ktorých každé je napojené na mechanizmus 9 pre horizontálny posun ramena 2. Tento je uložený na mechanizme 3 pre vertikálně polohovanie, ktorý je opatřený zdvíhacím mechanizmom 4 a snímačom 7 polohy ramena 2 s čidlom 8. Nad ramenami 2 je umiestnená kamera 21_, dvojica fotosnímačov 5, 6 a na dráhe J8 ukladacieho mechanizmu sú posuvné uložené ramená J9 ukladacieho mechanizmu spojené s priamočiarym hydromotorom 20.As shown in the drawings, the device according to the invention consists of two opposing stands 13. Each stand 13 is provided with a centering element 17 in the direction of the longitudinal axis and a clamping spindle 15 rotatably mounted in the rotary mechanism. In the space between the stands 13, two V-shaped arms 2 are arranged, each of which is connected to a mechanism 9 for horizontal displacement of the arm 2. This is mounted on a vertical positioning mechanism 3 which is provided with a lifting mechanism 4 and an arm position sensor 7 A camera 21, a pair of photocells 5, 6 are disposed above the arms 2, and on the track 18 of the storage mechanism, the displaceable mounted arms 19 of the storage mechanism are connected to a linear hydraulic motor 20.

Funkcia zariadenia pódia vynálezu je nasledovná. Dávkovači element 14 položí výřez 1 na valčekovú trač JO. Výřez J sa dostane medzi stojany J3, uloží sa na ramená 2 tvaru V a centrovacím! prvkami 17 sa vycentruje v smere pozdižnej osi. Po tomto vycentrovaní ea výřez 2 začne dvíhač zdvíhacím mechanizmom 4, kým sa nezatieni lúč dvojice fotosnímača 5,The function of the device according to the invention is as follows. The dispensing element 14 places the cutout 1 on the roller track 10. The cut-out J enters between the stands J3, is placed on the V-shaped arms 2 and centered! the elements 17 are centered in the direction of the longitudinal axis. After this centering e and the cutout 2, the elevator starts with the lifting mechanism 4 until the beam of the photo sensor pair 5 is obscured,

6. Potom sa výřez J ešte zdvihne o polovicu priemeru, čím sa dostane do osi otáčacieho mechanizmu H a upne sa do upínacích vretien ±5, spojených s násuvnou převodovkou 26· Potom sa výřez 2 otočí o 360° a jeho geometrický tvar sa zosníma kamerou 21. Zosnímané údaje sa spracujú v počítači a po ich vyhodnotení upínacie vretená 2? uvolnia výřez 1 a na základe údajov z počítača sa výřez docentruje v horizontálnom smere mechanizmom 9 pre horizontálny posun a vo vertikálnom smere mechanizmom 3 pse vertikálně polohovanie. Takto optimálně vycentrovaný výřez 2 sa uchopí ramenami 29 skladacieho mechanizmu, ktoré ho po dráhe 2θ skladacieho mechanizmu přesunů v optimálnej polohe do osi lúpacieho stroja na dýhy.6. Then the cut-out J is lifted by a half of the diameter, thus getting into the axis of the rotating mechanism H and clamped into the clamping spindles ± 5 connected to the slip-on gearbox 26 · Then the cut-out 2 rotates 360 ° and its geometric shape is captured 21. The scanned data is processed in a computer and, after evaluation, the clamping spindles 2? releasing the cut-out 1 and based on the data from the computer, the cut-out is centered in the horizontal direction by the horizontal displacement mechanism 9 and in the vertical direction by the pse mechanism 3 vertically positioning. The optimally centered cut-out 2 is gripped by the arms 29 of the folding mechanism, which move it along the path 2θ of the folding mechanism in an optimal position to the axis of the veneer peeling machine.

Zariadenie podía vynálezu je možné použií v drevárskom priemysle pre polohovanie výrezov všetkých spracúvaných rozmerov a je ho možné použií ako univerzálně zariadenie před každým lúpacíra strojom na dýhy.The device according to the invention can be used in the wood industry for positioning of cut-outs of all processed dimensions and can be used as a universal device in front of each peeling machine.

«I •J«I • J

CS 272 6,8 Bl 2CS 272 6.8 Bl 2

PREDMET VYNÁLEZUOBJECT OF THE INVENTION

Claims

OBJECT OF THE INVENTION

Apparatus for precisely positioning cut-outs for veneer peeling machines, characterized in that it comprises two opposing stands (13), each of which is provided with a centering element (17) in the direction of the longitudinal axis and a clamping spindle (15) rotatably mounted in the rotary mechanism (14), in the space between the stands (13) are located two V-shaped arms (2), each of which is rigidly connected to a mechanism (9) for horizontal displacement of the arm (2), which is supported on the mechanism (3) ) for vertically positioning, provided with a lifting mechanism (4) and an arm position sensor (7), wherein the arms (19) of the storage mechanism and above the arms (2) are displaceable above the arms (2) on the track (18) of the storage mechanism a pair of photo sensors (5, 6) and a camera (21) are also provided.

2 drawings

CS 272 618 Bl