EP2014602A1 - Dispositif et procédé pour la saisie mécanique de bûches de bois - Google Patents

Dispositif et procédé pour la saisie mécanique de bûches de bois Download PDF

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Publication number
EP2014602A1
EP2014602A1 EP08009341A EP08009341A EP2014602A1 EP 2014602 A1 EP2014602 A1 EP 2014602A1 EP 08009341 A EP08009341 A EP 08009341A EP 08009341 A EP08009341 A EP 08009341A EP 2014602 A1 EP2014602 A1 EP 2014602A1
Authority
EP
European Patent Office
Prior art keywords
log
holding part
gripping device
tip
holding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08009341A
Other languages
German (de)
English (en)
Inventor
Alfred Märzinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AT8062007A external-priority patent/AT505365B1/de
Application filed by Individual filed Critical Individual
Publication of EP2014602A1 publication Critical patent/EP2014602A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/58—Gripping members engaging only the external or internal surfaces of the articles and deforming the articles, e.g. by using gripping members such as tongs or grapples
    • B66C1/585—Log grapples

Definitions

  • the invention relates to a device and a method for the mechanical grasping of logs.
  • the invention is advantageously applicable particularly to the automated feeding of logs from a disordered bed thereof to a furnace.
  • a very common gripping device for the mechanical grasping of wood parts from a bed of wood pieces is the so-called wood grapple, as he is well known, especially from forestry.
  • This gripping device is not usable even in small variants for the present task, as it can not be ensured that it automatically detects exactly one log in individual gripping operations from a bed of logs with high security.
  • the DE 1 481 870 A and the DE 43 30 498 A1 show grippers for picking bales arranged in stacks.
  • the gripping devices have a mechanically movable holding part, which penetrates for the purpose of recording with a tip in the bale and pull out the top to loosen it again.
  • the bales are a light, porous, loose assembly of small, soft items, such as straws typically hay or straw.
  • An applicability of the gripper for monolithic Body in which the tips of a gripper so can not drive between individual parts of an assembly of parts, but impale the part itself is not considered.
  • the object underlying the invention is to provide a gripping device, with the aid of which automatically a single log can be transported away from a disordered bed of logs and stored defined at a definable location.
  • the gripping device to be created should have less space and be associated with lower costs.
  • a gripping device with each other, mechanically driven, controllable moving parts used, at least one - further referred to as “holding part” - part of the gripping device is provided with at least one tip, which penetrates when grasping a wooden log in this.
  • the gripping device does not comprise the material to be gripped, but only skewered, the size of the gripped product is largely insignificant for the function of the gripping device.
  • - transport of logs intended for firing the change in the collected material caused by the penetration of one or more points of the gripper does not constitute a disadvantage.
  • the gripping device is attached to a serving as a manipulating device portal device and moved by this.
  • the portal device is arranged above the bed of logs.
  • At the movable in two horizontal, normally co-ordinate coordinate trolley of the portal device is vertically adjustable gripping device arranged. It is advantageous on a gantry device that in the light embodiment which is sufficient for the present purpose, it is really mountable in every room, that it is very inexpensive and robust compared to pivoting robot arms and that it is not in the danger zone when delivering the logs ,
  • gantry 1 is in principle a very light gantry crane.
  • the aligned in the X direction rails 1.2 are fixed.
  • a total of four rollers 1.3, to which the frame 1.4 is fixed, which in turn in the Y direction (in Fig. 1 normal to the image plane) aligned running rails 1.5 carries.
  • the trolley 1.7 runs on rollers 1.6, the trolley 1.7.
  • Mechanical design, power supply and position control of gantry devices are so well known in the art from other applications, so it need not be discussed in detail here.
  • the gripping device according to the invention can also be usefully used on other transport devices as a portal device, for example on a robot arm.
  • the framework 2.1 of in Fig. 1 and Fig. 2 sketched gripping device 2 is attached via a mounted on its top tab on the belt 1.9 of the gantry device hanging. From its lower end face protrudes as pointed expiring self-tapping screw thread formed holding part 2.2.
  • the shape of the thread crest of the holding part can, for example, be taken over by conventional chipboard screws or by traditional wood splitting tools.
  • the holding part 2.2 is rotatably controlled by a arranged on the frame 2.1 drive device 2.3 about its longitudinal axis.
  • Logs can be made with a plant according to Fig. 1 to which a gripping device according to the invention is applied, simply a fully automatic controlled firing for fixed Fuels are supplied. It only needs the dropping or depositing place to usual, feedable from above feed openings or feeders for individual solid pieces of fuel to firings are placed.
  • the stop pins can be made linearly displaceable or pivotable.
  • the holding part 2.2 can be performed linearly displaceable.
  • FIG. 3 a second variant of a gripping device is shown.
  • a provided with a tip holding part 12.2 and a support member 12.3 are pivotally mounted on the housing 12.1 of the gripping device 12 as the pair of jaws of a pair of pliers. If the gripping device has been lowered so far that it bears against the lowest end region of holding part 12.2 and / or support part 12.3 on one or more logs, holding part and support part are pivoted toward each other like the jaws of a pair of pliers. At this pivotal movement on the holding part at the front lying tip stings on one side in the adjacent log. The log can not slip away and the gripping device can not swing away because on the other side of the log the support member 12.3 abuts this.
  • the support member Since the support member is not provided with a tip, it can not penetrate into the log. As a result, only a single log is caught even if support part and holding part abut different logs. As soon as the tip of the holding part has penetrated sufficiently deep into the log - the measurement is easiest by the applied force - holding part 12.2 and support member are slightly pivoted away from each other, so that no log more clamped between them can be.
  • the gripper is raised, it is only the wooden log, in which the tip of the holding part has penetrated, lifted with.
  • the holding part After the gripping device has been moved over the unloading point, the holding part is pivoted into the open position next to a housing part 12.1 immovable stop member 12.4. At this stop part 12.4 the log is prevented from further movement with the holding part, whereby the tip of the holding part slides out of the log and the log falls off the gripping device.
  • Fig. 4 is outlined a third variant of a gripping device.
  • a voltage applied to the underside of the gripper timber log two arranged on the bottom of the gripping device, each provided with a plurality of tips holding parts 22.2 gegenussi moved towards each other.
  • This movement is a rotatory, wherein the axis of rotation is eccentric to the Zahnan glovessstoffachse.
  • the two holding parts 22.2, 122.2 are thereby more and more under the cover parts 22.4, 122.4 out and against each other moves towards each other with pointing towards each other peaks.
  • the tips eat themselves in the log.
  • the two holding parts 22.2 and 122.2 must be arranged so close to each other that the likelihood is high that their tips only come to rest on a single, common log and not on two different logs. Nevertheless, if they occasionally come into contact with two different logs, there is still a much higher probability that no log or just a log will be caught than two logs will be caught. Because then at least one log join in the movement of the tips attached to it can not, the required relative movement between the log and tip, which is required for the penetration of a tip into a log, not to do.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
EP08009341A 2007-05-23 2008-05-21 Dispositif et procédé pour la saisie mécanique de bûches de bois Withdrawn EP2014602A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT8052007 2007-05-23
AT8062007A AT505365B1 (de) 2007-05-23 2007-05-23 Greifgerät für das maschinelle fassen von teilen aus einer ungeordneten schüttung

Publications (1)

Publication Number Publication Date
EP2014602A1 true EP2014602A1 (fr) 2009-01-14

Family

ID=40040065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08009341A Withdrawn EP2014602A1 (fr) 2007-05-23 2008-05-21 Dispositif et procédé pour la saisie mécanique de bûches de bois

Country Status (1)

Country Link
EP (1) EP2014602A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363370A1 (fr) 2010-03-02 2011-09-07 Feiba Engineering & Plants GmbH Dispositif de prise
DE102011103914A1 (de) * 2011-06-10 2012-12-13 HET HEIZ- UND ENERGIETECHNIK ENTWICKLUNGS GmbH Holztransportvorrichtung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082031A (en) * 1958-08-25 1963-03-19 Isaacson Iron Works Two point log grapple
DE1481870A1 (de) 1967-03-11 1969-06-04 Karl Wenker Maschinen Und Form Hebevorrichtung fuer Materialien in Ballenform
DE1531205A1 (de) * 1967-12-23 1969-10-30 Holm Dr Ing Otto Abdrueckvorrichtung fuer Rundholzzangengreifer
US4444538A (en) 1982-07-12 1984-04-24 Jerry Manley Automatic log feeder
DE3537841A1 (de) 1985-10-24 1987-04-30 Edmund Wagner Beschickungsanlage fuer festbrennstoffe
US4688544A (en) 1986-06-16 1987-08-25 Estevan Gonzales Self loading wood burning stove
US4740023A (en) * 1987-02-24 1988-04-26 Robert Miller Article engaging and holding device
DE4330498A1 (de) 1993-09-09 1995-03-16 Siegfried Schuster Verfahren und Vorrichtung zum automatischen Versetzen von Ballen mit Greifern
CA2313584A1 (fr) * 2000-07-07 2002-01-07 Jacques Pedneault Pince de prehension

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082031A (en) * 1958-08-25 1963-03-19 Isaacson Iron Works Two point log grapple
DE1481870A1 (de) 1967-03-11 1969-06-04 Karl Wenker Maschinen Und Form Hebevorrichtung fuer Materialien in Ballenform
DE1531205A1 (de) * 1967-12-23 1969-10-30 Holm Dr Ing Otto Abdrueckvorrichtung fuer Rundholzzangengreifer
US4444538A (en) 1982-07-12 1984-04-24 Jerry Manley Automatic log feeder
DE3537841A1 (de) 1985-10-24 1987-04-30 Edmund Wagner Beschickungsanlage fuer festbrennstoffe
US4688544A (en) 1986-06-16 1987-08-25 Estevan Gonzales Self loading wood burning stove
US4740023A (en) * 1987-02-24 1988-04-26 Robert Miller Article engaging and holding device
DE4330498A1 (de) 1993-09-09 1995-03-16 Siegfried Schuster Verfahren und Vorrichtung zum automatischen Versetzen von Ballen mit Greifern
CA2313584A1 (fr) * 2000-07-07 2002-01-07 Jacques Pedneault Pince de prehension

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363370A1 (fr) 2010-03-02 2011-09-07 Feiba Engineering & Plants GmbH Dispositif de prise
DE102011103914A1 (de) * 2011-06-10 2012-12-13 HET HEIZ- UND ENERGIETECHNIK ENTWICKLUNGS GmbH Holztransportvorrichtung
DE102011103914B4 (de) * 2011-06-10 2017-07-13 HET HEIZ- UND ENERGIETECHNIK ENTWICKLUNGS GmbH Holztransportvorrichtung

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