AT501189A2 - DEVICE AND METHOD FOR SAWING WOOD TO FIREWOOD - Google Patents

Description

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Apparatus and method for sawing wood to firewood

The present invention relates to an apparatus and method for sawing wood as sections of firewood.

A variety of devices and methods for sawing wood into firewood are known in the art. Push table and rocker saws, each having a sawing or cutting device, are widely used. In this case, the supply of the sawn or to be sawn round or firewood in the sawing done manually. However, their efficiency is limited.

Eirie improvement to this is known from the generic device of AT 407 024 B, in which at least two are provided transversely movable to Schnittgutlängsrichtung Bandsägeorganen. This Brennholzscheidmaschine has a forceps-shaped holding device for holding the cuttings, which transversely to the Schnittgutlängsrichtung slidably mounted on rails and thus the clippings in the Bandsägeorgane.

In this device, however, the relatively high mechanical complexity is disadvantageous. Furthermore, the efficiency of the sawing devices and thus of the firewood cutting machine is limited by the successive partial operations.

DE 17 69186 U and Austrian Patent AT 281 396 each disclose devices for sawing wood, but their result is in the form of boards or beams for use in the construction industry. Like. Determined. In addition, each piece of wood to be cut is held in the respective feed device by means of gripper-like clamping devices, which are each mounted as an integral part of the respective feed device therein. The necessary control of the opening and gripping movement of the clamps to hold the wood results in a very high mechanical effort.

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It is therefore the object of the present invention to provide an apparatus and a method for sawing wood into firewood, with the simplest possible mechanical structure and improved efficiency and high throughput.

This object is achieved with the features of claim 1 and the features of claim 9.

Further embodiments of the invention are specified in the subclaims. Some examples thereof are described in more detail below with reference to the drawing. It shows:

1 shows a schematic side view of an embodiment of the device according to the invention,

Figure 2 is a schematic side view of further embodiments of the device according to the invention and

Figure 3 is a schematic plan view of an embodiment of the device according to the invention.

1 shows an embodiment of the inventive device (1) for sawing wood (H) to firewood. It consists of a frame or frame (2) for receiving or carrying at least one cutting device (3) and a feed device (4) and other devices which are described below. The cutting device (s) (3) and the feed device (4) are motor-driven and at least controllable and / or controllable in such a way that they can be switched on and off. The switching on and off of the various devices of the device (1) can be done together by one and / or each individually by a plurality of switches.

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To improve the portability and the stability of the device according to the invention (1), the frame or the frame (2) (hereinafter referred to only with frame (2)) at least one transport and / or adjusting device (21,22) Transport and / or installation of the device (1). On the frame (2) can be provided one or more one or more transport and / or Aufstellinrichtung / -en. Examples of these transport and / or Aufstellinrichtungen are (optionally adjustable) Aufstellfüße (21), wheels (22) (shown in Figure 2), a three-point hitch (not shown) to a tractor and one or more tabs (not shown) for Intervention of a lifting or carrying device, such. B. for the fork of a forklift or front loader or tabs for engaging a chain or rope of a cable or a crane. Further transport and / or setting-up devices are, for example, one or more sliding and / or carrying rods and / or a trailer attachment to a tractor.

Furthermore, various protective covers are attached to the frame (2), which are intended to prevent both manual intervention in moving devices of the device (1) and the propagation of sawdust or wood splinters. In addition, one or more ports may be provided for one or more exhaust devices (not shown).

In addition, the frame (2) carries at least one or more Schneideinrich-tion / -en (3) for Abjängen the wood (H).

In a preferred embodiment, the at least one cutting device (3) is a band saw (31). In this case, the opposing sections of the revolving saw band each form an independent saw member, so that already two spaced cuts can be carried out by the forward and return section of the saw band of the band saw (31). For the usually about 1 m long clippings resulting from a log so that three oven-friendly sections (H '). For adaptation to the log or Section length is the distance between the forward and return section of the saw blade by suitable means, such as other or other, larger or smaller pulleys, adjustable.

SUBSEQUENT

In a further embodiment (shown in FIG. 2), the at least one cutting device (3) is a circular saw (32). To increase the throughput or the efficiency in the device (1) according to the invention two or more circular saw blades are arranged in parallel, in a preferred embodiment, the at least two circular saw blades are mounted on an axle or shaft, wherein the distance between the individual sheets on the Axis or shaft is adjustable. However, the individual circular saw members can also each have a separate storage, which in turn can be parallelverstell- or slidable on the frame or frame (2).

In addition, the at least one cutting device (3) may be a chain saw (33) (shown in FIG. 2). In order to increase throughput or efficiency, one, two or more chainsaw devices can be arranged in parallel in the apparatus (1) according to the invention. In a preferred embodiment, the drive pinions of the at least two chain sawing devices are mounted on an axle or shaft, the distance between the two single chainsaw sword is adjustable on the axle or shaft. However, the individual chainsaw devices can each also have an independent bearing, which in turn can be parallel displaceable or slidable on the frame (2).

The feed device (4) of the device (1) according to the invention about at least one shaft or axis (41) rotatable and approximately perpendicular (at 90 ° angle) to the cutting direction, wherein the wood (H) through the Vorsehubeinrichtung (4) in the at least a cutting device (3) is guided.

In a preferred embodiment, the at least one shaft or axle (41) is integral or continuous. But it can also be interrupted or multipart.

In the further embodiment of the preferred embodiment, the one-piece shaft or axis (41) is tubular or drum-shaped. The at least one shaft or axle (41) can also be made of solid material.

In addition, the cross section of the at least one shaft or axis (41) may be circular or non-circular, such as oval or polygonal.

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To the at least one shaft or axis (41) of the feed device (4) one or more receiving device (s) for the wood (H) are arranged, which preferably have boundaries and thereby one or more receiving compartments / compartments or can form segment / -e (42).

In a preferred embodiment of the feed device (4), the receiving compartments or segments (42) are arranged in a largely star shape around the at least one shaft or axis (41) of the feed device (4).

In the simplest embodiment, the receiving compartments or segments (42) are bounded by sheets (43), grids, bars or rakes mounted on a shaft or axle (41). The receiving compartments or segments (42) can also be limited by console-like drivers (44). Due to the shape of these boundaries, the receiving compartments or segments (42) may have different cross sections, such as an at least approximately circular segment or. arcuate or at least approximately polygonal cross section.

The boundaries of the receiving compartments or segments (42), such as metal sheets (43), grids, rods, rakes or console-like drivers (44), can be fixed directly undetachably on the shaft or axle (41), in particular welded, or for adjustment or adjustment ., To adjust the size of the receiving compartments or segments (42) to the cut material wood (H) be releasably secured there, such as screwed and / or plugged or latched. But it is also possible one or more sheets, grids or the like to deform or bend so that it results in the fan or segment shape thereof.

In another embodiment, not shown, the receiving compartments or segments (42) are rotated about at least two parallel arranged shafts or axes (41), wherein the boundaries, such as plates (43), grids, bars, rake or console-like drivers (44), are mounted on at least one endless chain or one or more bands or straps that are rotated around the plurality of shafts or axes (41).

In addition to the rigid design of the receiving compartments or segments (42)

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It has also proved to be advantageous for fixing the wood (H), in the receiving compartments or segments (42) Domen, hooks, knobs, counter-holders, pins and / or elongated or tooth or wave-shaped elevations or roughnesses bring.

In the manner described so far, the cut wood (H) is guided by means of the feed device (4) into the at least one cutting device (3) in which the sections (H ') are produced by cutting to length. In a preferred embodiment of the device (1) according to the invention, the feed device (4) guides the sections (H ') after the passage or the completely cut through the one or more cutting devices (3) of one Removal device (5) and / or a splitting device (6) (shown in principle in Figure 3).

In the simplest embodiment, the removal device (5) is a sheet-metal, lattice-like or rake-type chute (51).

In a further and / or additional embodiment, the removal device (5) has at least one band (52) or at least one belt or at least one chain. Then the drivers for the sections (H ') may be appropriate.

The Abtransporteinrichtung (5) in belt, belt or chain shape can be driven by a motor and at least to that effect be controlled and / or regulated so that it can be switched on and off.

In a further embodiment, in or on the device (1), in particular within and / or upstream or upstream of the / the cutting device (s) (3), the feed (4), the removal (5) and / or the splitting device (6), further guide means, such as hold-down (23) or steering guides, which may also be movable by motor, may be provided. These guiding devices serve for

FROZEN -7- further fixation of the wood (H) in the device (1), in particular the / -n cutting device (s) (3).

In the simplest embodiment, the downholder (s) (23) is / are one or more guide rails (s) attached to the frame (2). It is advantageous if the guide rail / -n is movable and / or flexible and / or resilient / are. For this purpose, an embodiment of the at least one guide rail is at least partially made of spring metal or another spring-elastic material. In addition, at least one guide rail in a further or additional form each have at least one joint portion, wherein advantageously the at least one guide rail is loaded with a force and at least one joint portion, for example, a bearing, a pivot point, a flexible, resilient material or a resilient (eg, spiral) section, etc.

Suitable hold-downs are also directly or indirectly on the frame (2) attached chains, ropes, belts or straps, which may be loaded with force and / or dragging and / or in or against.

In another embodiment, at least one hold-down may be brush-shaped or made of an elastic material.

In a particular embodiment, the guiding and hold-down function can be performed or supported by at least one cutting device (3) in which its bearing is designed such that it resiliently, rocking and / or force loaded against the wood (H) in the feed device (4 ) presses

Further advantageous is a guide device in the at least one cutting device (3) in the form of a band saw (31) which guides the saw band: in the simplest embodiment, it is a slotted block with the saw band running through the slot. However, other embodiments are also possible, wherein the holder of this guide device takes place on the frame (2).

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In addition, guide means in the form of wipers or wiper means are advantageous which guide the sections (FT) out of the receiving compartments or segments (42).

In one embodiment, the device (1) according to the invention may have a common motor drive for the motor-driven devices, such as the at least one cutting device (3), the feed device (4) and the Abtransporteinrichtung (5) and / or the splitting device (6) ,

However, the device (1) can also have a plurality of motor drives for the motor-driven devices, such as the at least one cutting device (3), the feed device (4) and the removal device (5) and / or the splitting device (6).

One or more motor drives can be attached directly to the frame (2) or indirectly provided to the device (1) or arranged there.

The one or more motor drive (s) may be electrical and at least carried out by an electric motor.

In addition, at least one motor drive by an internal combustion engine, a bevel gear, via the PTO of a tractor or a tractor and / or hydraulically done.

In a preferred embodiment, at least one motor drive of the device (1) can be controlled and / or regulated at least to the extent that its or their speed, in particular individually, is variable, wherein the drive of the feed device (4) can also be designed to be tactile. In this case, the intermittent release of the feed movement may be sensor-initiated time-dependent or manually or on the presence of wood (H).

In addition, at least one motor drive of the device (1) can be reversible in its direction of rotation, in particular for eliminating disturbances, such as

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Clamp or block. In a preferred embodiment, the respective reversing device can be tilted or actuated in each case only by a toggle switch.

In an embodiment of the device according to the invention, at least one motor drive takes place directly. Preferably, at least one motor drive takes place indirectly, in particular via at least one belt drive, a torsion element or a flywheel.

Furthermore, the device (1) according to the invention, in addition to the above-mentioned protective covers and Tippschaltem and Riementrieben or Torsionselementen further protection devices. For this purpose, the device (1) comprises electrical or electronic and / or mechanical protective devices, such as at least one overload safety device, a slip clutch and / or at least one emergency stop device. For the practical use of the device, it has proved to be particularly advantageous if the device (1) is rotatable, for example, when the frame (2) is mounted on a turntable. Furthermore, a device for adjusting the height of the device (1) allows the alignment of the device (1) on the feed of wood (H) and / or the derivation of the sections (H-).

In addition to FIGS. 1 and 2, FIG. 3 illustrates the method according to the invention for sawing wood (H), in particular firewood, using the previously described apparatus (1) according to the invention.

For this purpose, the cutting material or wood (H) to be cut off, whose longitudinal axis is approximately parallel to the longitudinal direction of the at least one shaft öder axis (41) of the feed device (4), the inventive device (1) in the direction perpendicular to the cutting direction or parallel to the cutting direction fed or inserted or pushed. This feeding and introduction of the wood (H) into the receiving compartments or segments (42) can be done manually or by machine or directly or indirectly via an auxiliary device such as a chute, a storage and / or a drivable feed. The feed device (4) guides the wood

With its longitudinal axis approximately perpendicular to the cutting direction in continuous or tactile movement into the at least one cutting device (3). In particular, so many cutting devices (3) are arranged so that the desired number or the desired length of the sections (H ') is generated by a sawing process. These generated sections (H ') are passed or passed by the feed device (4) to the removal device (5) and / or the splitting device (6) after passing through the cutting device (s) (3).

In one embodiment, the splitting device (6) can be attached to the device (1) in such a way that the sections (H ') are passed on to the latter by means of the feed device (4) and optionally additionally via a chute (51). A hydraulic ram (61) then presses or splits the sections (H ') with or through at least one splitting member (62), for example in wedge, cross or gate form. Simultaneously with the splitting process or subsequently, the sections (H ') split into two or more parts are fed to the removal device (5), in particular to a belt (52). In this case, the or the Spattorgan / -e can be operated in the forward and reverse of the press ram.

However, a splitting device can also be arranged upstream of or arranged there according to the device (1) or the feed device (3) according to the invention.

Further embodiments will also become apparent from the wording of the claims.

With the device according to the invention and with the method according to the invention an efficient sawing of wood, in particular for use as firewood or for use in wood gasification or other energetic use, with high throughput is possible by a simple mechanical construction.

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LIST OF REFERENCES: (1) Device for sawing wood, in particular firewood (2) frame or frame (3) cutting device (s) (4) feed device (5) removal device (6) splitting device (21) installation foot (22) wheel (23) hold-down device (31) Band Saw (32) Circular Saw (33) Chainsaw (41) Shaft (s) or shaft (s) (42) Shelf or segment (43) Plate (44) Bracket (51) Slide (52) Strap (61 ) Pressing punch (62) Cutting element (H) Wood or cut material (H ') Section (s) of the wood or firewood.

SUBSEQUENT

Claims (1)

Claims 1 to 9: Claim 1: device (1) for sawing wood (H ) In sections (H ') as firewood, consisting of a frame or frame (2), at least one cutting device (3), the motor driven and at least to control and / or is controllable that they can be switched on and off / are, and a feed device (4) which is rotatable about at least one shaft or axis (41) and the at least one shaft or axis (41) is approximately perpendicular to the cutting direction of the at least one cutting device (3) is arranged, wherein the feed device (4) is motor-driven and at least controllable and that it is switched on and off, and wherein the feed device (4) the wood (H) through the one or more cutting device (s) (3) leads , Claim 2: Device according to claim 1, characterized in that the frame (2) has at least one transport and / or adjusting device for transporting and / or setting up the device (1) and / or the at least one transport and / or Auf Adjustment device of the frame (2) Aufstellfüße (21) and / or FOLLOWED -14- 14- • · • · * · • · • wheels are (22) and / or a three-point hitch to a tractor and / or one or more Tabs is / are and / or one or more sliding and / or support rod / -n is / are and / or at least one transport and / or Aufstellinrichtung the frame (2) is a hitch. Claim 3: Device according to one of the preceding claims, characterized in that on the frame (2) protective covers for the device (1) are mounted and / or at least one hold-down (23) carries the / the wood (H) at least within the / one of the cutting device (s) (3) leads. Claim 4: Device according to one of the preceding claims, characterized in that the at least one cutting device (3) is a band saw (31) and / or a circular saw (32) and / or a chain saw (33). Claim 5: 'Device according to one of the preceding claims, characterized in that the at least one shaft or axis (41) is integral or continuous or multi-part or interrupted, wherein the at least one shaft or axis (41) of solid material and / or pipe - or drum-shaped, wherein at least one shaft or axis (41) of the feed device (4) one or more receiving device (s) are arranged for the wood (H), wherein the one or more Aufnahmeinrichtüng and for the wood (H) one or more receiving compartments / compartments or segment (s) (42) and the receiving compartments or segments (42) around the at least one shaft or axis (41) of the advancing device (4) are arranged stem-shaped , wherein the receiving compartments or segments (42) by sheets (43), grid, bars or rake and / or by console-like drivers (44) are limited and / or at least an approximately circular segment-shaped cross-section or to have an approximately polygonal cross section. Claim 6: Device according to one of the preceding claims, characterized in that the device (1) a Abtransporteinrichtung (5) and / or a splitting device (6) for the resulting sections (H '), wherein the Abtransporteinrichtung (5) driven by a motor and at least to the effect that it can be controlled and / or regulated so that it can be switched on and off, and the removal device (5) preferably has at least one belt or belt and / or at least one chain and / or driver. Claim ?: Performance according to one of the preceding claims, characterized in that & the device (1) has a common motor drive for the at least one cutting device (3), the feed device (4) as well as the Abtranspo ^ eirrrtchtung FOLLOWING -16- • ···· t I ♦ ·· · · · · · · And / or a plurality of motor drives for the at least one cutting device (3), the feed device (4) and the removal device (5) ) and / or the splitting device (6), wherein at least one motor drive is an electric and takes place by at least one electric motor and / or an internal combustion engine and / or an angular gear and / or the PTO of a tractor or a tractor and / or or hydraulically, wherein at least one motor drive takes place directly and / or at least one motor drive indirectly, in particular via at least one belt drive or a torsion element takes place, vorzugsw preferably At least one motor drive can at least be controlled and / or regulated such that its speed can be changed. Claims: Device according to one of the preceding claims, characterized in that the device (1) comprises protective devices, wherein the protective devices preferably comprise one or more over-jaw locks and / or slip clutches and / or at least one emergency stop device. Claim 9: A method for sawing wood (H) into sections (H ') as firewood using a device (1) according to any one of claims 1 to 8. SUBSEQUENT