SE428554B

SE428554B - Device for transporting whole trunks, whole trees or lumber from a storage place to a length transporter

Info

Publication number: SE428554B
Application number: SE8102991A
Authority: SE
Inventors: S Lundqvist
Original assignee: Hammars Mekaniska Verkstad Ab
Priority date: 1981-05-13
Filing date: 1981-05-13
Publication date: 1983-07-11
Also published as: SE8102991L

Abstract

A device to transport whole trunks 8 or entire trees from a storage space for them to a length transporter 3 has a cross- transporter 2 between the storage place 1 and the length transporter 3 and one swing crane 9 standing at the side of the cross-transporter, with a crane arm 10 which can be swung horizontally over the cross-transporter's 2 area and which has a gripping device 11 at its outer end. The cross- transporter 3 can be operated intermittently or stepwise and is provided with U-shaped frames formed by framework walls 6, the frames being intended for receiving only one whole trunk 8 (or a whole tree) in each frame. The gripping device 11 can be turned to a sufficiently large angle around a vertical axis so that one whole trunk gripped by the gripping device 11 can be turned 180 degrees in the horizontal plane where the whole trunk is in the right direction with each thick or root end pointed forward in relation to the length-transporter's transport direction 13 before the whole trunk is placed in an empty frame 7. <IMAGE>

Description

s1@2991-o som nedledningsplan därstädes, såsom fig. 1 visar till vänster vid längdtransportören. s1 @ 2991-o as a descent plane there, as Fig. 1 shows to the left of the longitudinal conveyor.

En svängkran 9 är uppstäild vid sidan av tvärtransportören 2 och har en ledad och längdinställbar kranarm 10, som på sin ytterände bär ett griporgan 11 med gripklor 12. Kranarmen 10 är dels svängbar omkring svängkranens 9 vertikala centrumaxel dels höj- och sänkbar, så att griporganet ll med sina klor 12 kan gripa en helstam 8 Üelträd eller stock på upplagsplatsen f och lyfta samt svänga helstammen 8 där- ifrån och till det tomma fack 7, som befinner sig närmast längd- transportören 3. Griporganet 11 är vridbart omkring en horisontell axel ( icke visad) relativt kranarmens 10 ytterände och därtill i ' sådan grad, att en av griporganet 11 gripen helstam kan svängas 180°.A pivot crane 9 is arranged next to the transverse conveyor 2 and has an articulated and length-adjustable crane arm 10, which carries at its outer end a gripping member 11 with gripping claws 12. The crane arm 10 is pivotable about the vertical center axis of the pivot crane 9 and can be raised and lowered. ll with its claws 12 can grip a whole trunk 8 Üel tree or log at the storage place f and lift and swing the whole trunk 8 therefrom and to the empty compartment 7, which is closest to the longitudinal conveyor 3. The gripping member 11 is rotatable about a horizontal axis ( not shown) relative to the outer end of the crane arm 10 and to it to such an extent that a whole stem gripped by the gripping member 11 can be pivoted 180 °.

Lämpliga manöver- och drivorgan eventuellt datorstyrda för rörelserna hos svängkran9Fdningen_ f 9-12 förefinnes av känt slag och därför ej närmare beskrivna.Suitable operating and driving means, possibly computer-controlled for the movements of the swivel crane 9-12, are of a known type and are therefore not described in more detail.

Den beskrivna anordningens tjänstgöring och fördelar är som följer.The service and benefits of the described device are as follows.

De helstammar 8 eller helträd, som avlägges på upplagsplatsen 1 kan ha sin tjock- eller rotända riktad åt vilket håll som helst, men de måste med hänsyn till kommande vidarebehandling vid sin avlämning till längdtransportören 3 ha sin tjock- eller rotända framåtriktad i längd- transportörens transportriktning enligt pilen 13. Därför fungerar an- ordningen enligt uppfinningen på sådant sätt, att för vidare transport av på upplagsplatsen 1 upplagda helstammar 8 ( eller helträd) manöv- reras svängkranen 9 manuellt eller datorstyrt, så att griporganet 11 griper en helstam 8, som förutsättes ha sin tjock- eller rotända fram- åtriktad relativt längdtransportörens 3 transportriktning, och för- flyttar denna under kranarmens 10 horisontalsvängning från upplags- platsen till det närmast tvärtransportörens utmatningsände befintliga tomma facket 7, i linje med vilket helstammen 8 inställes och av- lämnas av griporganet ll. Om däremot en helstam 8 på upplagsplatsen 1 har sin tjock- eller rotända bakåtriktad, bringas griporganet 11 att under sin passage över tvärtransportören 3 svänga helstammen 1800, så att helstammen har sin tjock- eller rotända framåtriktad, när hel- stammen nedlägges i facket 7. Griporganet 11 kan vid helstamavlämning gå ned i utrymmet mellan väggorganen 6 och skadar ej dessa. 8102991-0 Tvärtransportören 2 är som nämnt intermittent eller stegvis drivbar i den av pilen 14 angivna riktningen och längdtransportörens 3 mot- tagningsplats vid tvärtransportören övervakas lämpligen av en foto- cellanordning, som reglerar tvärtransportörens 2 drift, så att tvär- transportören tillåtas att avlämna en helstam till längdtransport- ören, blott när dennas mottagningsplats är fri, varvid en sluttande fackvägg 6 tjänar som nedledningsplan till längdtransportören 3.The whole trunks 8 or whole trees which are deposited at the storage site 1 may have their thick or root end directed in any direction, but they must have their thick or root end forward in the longitudinal conveyor with regard to future further processing when delivered to the longitudinal conveyor 3. transport direction according to the arrow 13. Therefore, the device according to the invention functions in such a way that for further transport of whole trunks 8 (or whole trees) placed on the storage site 1, the swing crane 9 is operated manually or computer-controlled, so that the gripping means 11 grips a whole stem 8, is assumed to have its thick or root end forward relative to the conveying direction of the longitudinal conveyor 3, and moves it during the horizontal swing of the crane arm 10 from the storage location to the existing empty compartment 7 located closest to the discharge end of the transverse conveyor, in line with which the whole stem 8 is adjusted and delivered by the gripping means ll. On the other hand, if a whole stem 8 at the storage location 1 has its thick or root end facing backwards, the gripping member 11 is caused to pivot the whole stem 1800 during its passage over the transverse conveyor 3, so that the whole stem has its thick or root end forwards when the whole stem is laid down in the compartment 7. In the case of whole-stem delivery, the gripping member 11 can go down into the space between the wall members 6 and does not damage them. As mentioned, the cross conveyor 2 is intermittently or stepwise drivable in the direction indicated by the arrow 14 and the receiving position of the length conveyor 3 at the cross conveyor is suitably monitored by a photocell device which regulates the operation of the cross conveyor 2, so that the cross conveyor is allowed to whole trunk to the longitudinal conveyor, only when its receiving place is free, whereby a sloping compartment wall 6 serves as a descent plane to the longitudinal conveyor 3.

Eftersom svängkranen 9 och dess griporgan 11 fyller facken 7 i följd från tvärtransportörens utmatningsände räknat, erhålles ett buffert- lager av separat liggande helstammar 8 på tvärtransportören 2, från vilken helstammarna nedmatas till längdtransportören 3 i takt med att denna bortforslar den ena helstammen efter den andra. Härigenom undvikes störningar av längdtransportörens helstamtransport, även om det inträffar temporärt avbrott i svängkrananordningens 9-12 verksam- het. Genom att den beskrivna anordningen är icke blott relativt enkel, utan även har ett buffertlager av helstammar och dessa avlämnas all- tid rättvända till längdtransportören 3 är anordningen synnerligen lämplig för virkesbehandlingsanläggningar, av vilka ej så hög kapa- citet fordras.Since the pivot crane 9 and its gripping means 11 fill the compartments 7 in succession from the discharge end of the cross conveyor, a buffer layer of separately lying integral trunks 8 is obtained on the transverse conveyor 2, from which the integral stems are fed to the longitudinal conveyor 3 . In this way, disturbances of the longitudinal conveyor's entire trunk transport are avoided, even if there is a temporary interruption in the swing crane device's 9-12 operation. Because the described device is not only relatively simple, but also has a buffer layer of whole trunks and these are always delivered straight to the length conveyor 3, the device is particularly suitable for timber treatment plants, of which not so high capacity is required.

Uppfinningen skall ej anses begränsad till blott det beskrivna och på ritningen visade utförandet, enär detta kan modifieras inom uppfinning- ens ram. Exempelvis kan fackväggarna vara i ett stycke över tvär- transportören och svängkrananordningens utförande kan modifieras.The invention should not be construed as limited to the embodiment described and shown in the drawing, since this can be modified within the scope of the invention. For example, the compartment walls can be in one piece over the cross conveyor and the design of the swing crane device can be modified.

Claims

8102991-0 Patent claims

Device for conveying these from a storage place (1) for whole trunks (8), whole trees or logs to a longitudinal conveyor (3), a transverse conveyor (2) being arranged between the storage place and the longitudinal conveyor and a the pivot crane (9) is arranged next to the transverse conveyor (2), which pivot crane has a crane arm (10) which is horizontally pivotable over the area of the transverse conveyor and at its outer end carries a gripping member (li) rotatable about a vertical axis, which transverse conveyor ( 2) is provided with compartment walls (6) extending across it, which between them form U-shaped compartments (7) for receiving only one whole trunk (8) or a whole tree in each compartment and which cross-conveyor is intermittent or stepwise drivable, characterized in that the compartment walls (6) are wedge-shaped in cross section with outwardly directed tip, whereby the compartments (7) are widening outwards and in that the wedge-shaped compartment walls (6) form a sloping descent plane to longitudinal transport (3) when passing it.

2. Anordning_enl. claim 1, characterized in that said gripping means (li) is rotatable a sufficient angle about said vertical axis for horizontal turning of a whole trunk or whole tree 1800 supported by the gripping means during its or its movement from the storage place (i) to a compartment ( 7).