DE102017127249B4 - Wood cutter - Google Patents

Abstract

Wood cutter for a tree trunk section with a cutting cassette (1) comprising a cutting table (3) a first vertical cutter (7) and a further vertical cutter (20) and a slide disk (11), the slide disk (11) comprising a slide hydraulic system (10), wherein the first vertical cutter (7) and the further vertical cutter (20) are arranged offset parallel to one another, characterized in that the slide disc (11) has a guide finger (4), the guide finger (4) in a finger receptacle (19) between the first vertical cutter (7) and the further vertical cutter (20) can be retracted in one end position, the vertical cutters (7, 20) being arranged in a fan-shaped offset, with one half of the vertical cutters (7, 20) with their cutting edge leading to a first lateral guide (8) and the other half of the vertical cutters are oriented towards a second lateral guide (13), the first vertical cutter (7) and the other Vertical cutter (20) each have a cover plate (16), the support table (2) having a horizontal cutter (5) on the edge facing the cutting table (3).

Description

Technical area

The invention relates to a wood cutter according to the preamble of claim 1.

State of the art

Such wood cutters are already known and used in a variety of forms and designs. For example, in the DE 20 2016 005 673 U1 a wood cutter with a cutting table is revealed.

In this context, the DE 60 2004 003 821 T2 pointed out. There is shown a machine for splitting elongated blocks of wood, the knives of the first row of knives and the knives of the second row of knives having variable distances.

In addition, the EP 0 334 741 A2 pointed out, which also shows a wood cutting system in which wood blocks are pressed by punches through a cutting grid to break the wood blocks into smaller pieces.

Object of the invention

The object of the present invention is to provide a wood cutter available which cuts different types of wood in the same quality and with the same effort as cleanly as possible into stackable logs, without force peaks during the cutting process, which is a special quality requirement the equipment of the wood cutter provides. On the one hand, good quality should be achieved with little energy and, on the other hand, energy-intensive force peaks, for example in the hydraulic system, should be prevented.

Solution of the task

The features according to claim 1 lead to the solution of the problem.

Advantageous refinements are described in the subclaims.

A wood cutter according to the invention is used to cut a section of a tree trunk. The cylindrical tree trunk section regularly has a length of 30 or 60 cm. This is a given length that is easy to stack. The wood cutter has a cutting cassette for this purpose. The cutting cartridge includes a cutting table and a first vertical cutter. For this purpose, the tree trunk section is pushed towards the first vertical cutter and another vertical cutter via a slide disk. The slide disk is moved over the cutting table by a sliding hydraulic system. It pushes the tree trunk section towards the first vertical cutter and the further vertical cutter and splits the tree trunk section into individual pieces of wood. The first vertical cutter and the further vertical cutter are arranged offset parallel to one another. Each vertical cutter also has a cutting edge which is directed towards the slide disk and which is slightly quenched and at the end of which the respective vertical cutter has the greatest width in order to subsequently taper.

In the wood cutter according to the invention, the slide disk is designed in such a way that the slide disk has a guide finger. The guide finger, in turn, is designed in such a way that it moves in between the first vertical cutter and the further vertical cutter in order to remove the cut pieces of wood between the two vertical cutters. This happens in the end position.

The cutting cassette has a support table and a cut support. This means that after the tree trunk section has been cut, the parts that have been cut into logs are carried away via the cut tray to a storage or collection point provided. For this purpose, the cut tray has a slope towards a subsurface in order to use the gravity of the logs.

The purpose of the support table is to ensure that the part of the tree trunk section which has not been cut into logs by the first vertical cutter and the further vertical cutter can be placed on the support table above the cut support.

In order to accelerate or facilitate this process, the support table has a horizontal cutter on the edge facing the cutting table. This horizontal cutter is used to make it easier to separate the part of the tree trunk section that should not be cut into logs.

The slide disc is connected to a back slide via a cross strut. The back pusher in turn has a back pusher roller which rests on the storage table.

In addition, a loading device is attached to the cutting table, the loading device being connected to the cutting table in the case of a device holder. The loading device is used this means that the tree trunk section does not have to be laboriously lifted onto the cutting table. As a rule, it is an approximately L-shaped receptacle onto which the tree trunk section can be rolled. The loading device can then be operated hydraulically so that the tree trunk section is lifted until it rolls onto the cutting table under the force of gravity.

In the starting position, the slide disk is approached or received in a slide mount of the cutting cassette. In a working position, the slide disk is hydraulically shifted by the sliding hydraulics over the cutting table to the first vertical cutter and the further vertical cutter. To do this, the slide disk is pushed over the cutting table between the first side guide and the second side guide. The two side guides are arranged at a right angle at each end to the horizontal cutter and run parallel to one another. Furthermore, each vertical cutter has its own cover plate, which is intended to facilitate the replacement of worn vertical cutters.

Figure list

• 1 einen erfindungsgemässen Holzschneider in Ausgangslage;
• 2 einen erfindungsgemässen Holzschneider in Arbeitslage;
• 3 einen erfindungsgemässen Holzschneider in Endlage;
• 4 eine Ansicht von schräg oben auf einen erfindungsgemässe Schneidekassette; 5 eine vergrösserte Teilansicht der Schneidkassette 1.

Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and with reference to the drawings; these show in:

• 1 a wood cutter according to the invention in the starting position;
• 2 a wood cutter according to the invention in the working position;
• 3 a wood cutter according to the invention in the end position;
• 4th a view obliquely from above of a cutting cassette according to the invention; 5 an enlarged partial view of the cutting cartridge 1 .

In 1 a wood cutter can be seen, the wood cutter in the 1 has no substructure. Various options can be considered as a substructure. For example, the substructure can be static in the form of a table or mobile in the form of a trailer.

The cutting cartridge 1 is arranged approximately in the middle. To the cutting cassette 1 is a loading device 9 via a fixture holder 18th appropriate. In addition, the cutting cartridge 1 on the other side of the sliding hydraulics 10 a storage table 2 on. Below the storage table 2 is a cutting tray 15th shown, which runs beveled from the storage table. The cutting cartridge 1 further has a cutting table three.

1 shows the wood cutter in its starting position. The starting position is a valve disc 11th near a slide mount 17th arranged.

The valve disc 11th turn is via a cross brace 12th with a back slide 6th connected. The backslider 6th has a push back roller 14th on which ones on the storage table 2 located. On the one hand, the cutting table is in the starting position 3 on the valve disc 11th a guide finger 4th shown which on the other hand of the cutting table 3 towards the first vertical cutter 7th indicates. The cutting table 3 is also through a first side guide 8th and a second side guide 13th flanked, with the first side guide and the second side guide 13th roughly at right angles to the horizontal cutter 5 arrange and run parallel to each other.

In 2 the wood cutter according to the invention is shown in the working position. In the working position, the valve disc has 11th the area of the slide mount 17th and is about halfway over the cutting table 3 moved to the first vertical cutter 7th or the horizontal cutter 5 .

Those already in the 1 The features described are not unnecessarily repeated here. However, it should be noted that in the 1 the back slide 6th partly over the storage table 2 is shown pushed. There is also a cover plate 16 to see which one is above the first vertical cutter 7th is arranged. the cover plate 16 can be easily loosened with screws so that the vertical cutter below can also be accessed for easier replacement.

In the 3 is the wood cutter according to the invention 1 shown in end position. There is now the valve disc 11th almost to the horizontal cutter 5 postponed. It is also shown how the back slide 6th now over the entire storage table 2 was moved. In the 1 until 3 no log section is shown. If a tree trunk section were shown, the part of the tree trunk section that was not cut into pieces of wood would now be placed over the cut tray 15th were removed on the storage table 2 lying off. If now the hydraulic shift 10 the valve disc 11th back to the slide mount 17th the backslider would pick up 6th the rest of the log section over the storage table 2 back towards the cutting table 3 move it back to the cutting table 3 to start the next cutting process.

In 4th Figure 3 is an enlarged schematic view of the cutting cartridge 1 to recognize. There you can also see how between the first vertical cutter 7th and the other vertical cutter 20th a finger pickup 19th is available. The finger recording 19th serves to ensure that the guide finger in the end position 4th moves into the free space and pushes the remnants of the log out in the direction of the cutting tray 15th .

In 5 is again an enlarged partial view of FIG 4th shown, which also shows the fan-shaped staggered arrangement of the vertical cutter. In addition, the 5 It is easy to see that a plurality of vertical cutters is arranged in such a way that one half of the vertical cutters with their cutting edge to the first lateral guide 8th and the other half of the vertical cutter 20th to the second side guide 13th are oriented towards.

List of reference symbols

1

Cutting cartridge

2

Filing table

3

Cutting table

4th

Guide finger

5

Horizontal cutter

6th

Backslider

7th

First vertical cutter

8th

First side guide

9

Loading device

10

Sliding hydraulics

11th

Valve disc

12th

Cross brace

13th

Second side guide

14th

Backslider role

15th

Cutting tray

16

Cover plate

17th

Slide mount

18th

Fixture holder

19th

Finger pickup

20th

Another vertical cutter

Claims (8)

Wood cutter for a tree trunk section with a cutting cassette (1) comprising a cutting table (3) a first vertical cutter (7) and a further vertical cutter (20) and a slide disk (11), the slide disk (11) comprising a slide hydraulic system (10), wherein the first vertical cutter (7) and the further vertical cutter (20) are arranged offset parallel to one another, characterized in that the slide disc (11) has a guide finger (4), the guide finger (4) in a finger receptacle (19) between the first Vertical cutter (7) and the further vertical cutter (20) can be retracted in one end position, the vertical cutters (7, 20) being arranged in a fan-shaped offset, with one half of the vertical cutters (7, 20) with their cutting edge leading to a first lateral guide (8 ) and the other half of the vertical cutter are oriented towards a second side guide (13), the first vertical cutter (7) and the wide ere vertical cutter (20) each have a cover plate (16), the support table (2) having a horizontal cutter (5) on the edge facing the cutting table (3). Wood cutter after Claim 1 , characterized in that the cutting cassette (1) comprises a storage table (2) and a cut storage (15). Wood cutter after Claim 1 or 2 , characterized in that the slide disk (11) is connected to a back slide (6) via a cross strut (12). Wood cutter after Claim 3 , characterized in that the back slide (6) has a back slide roller (14). Wooden slide according to one of the preceding claims, characterized in that a loading device (9) is attached to the cutting table (3), the loading device (9) being connected to the cutting table (3) via a device holder (18). Wood cutter according to one of the preceding claims, characterized in that the slide disc (11) in the working position is hydraulically displaceable over the cutting table (3) to the first vertical cutter (20) and the further vertical cutter (20). Wood cutter according to one of the preceding claims, characterized in that the cutting table (3) has a first side guide (8) and a second side guide (13), the two side guides (8, 13) each at right angles to the end of the horizontal cutter ( 5) are arranged, the two side guides (8, 13) being arranged parallel to one another. Wood cutter according to one of the preceding claims, characterized in that the cutting cassette (1) has a slide receptacle (17) for Has recording of the slide disc (11) in the starting position.

Images