FI126314B - Firewood Processor - Google Patents

Description

BACKGROUND OF THE INVENTION The present invention relates to a valve machine which cuts both wood and splits it into smaller pieces, the valve.

It is known that wood burning in fireplaces, valves, is produced from pruned wood frames by various types of valve machines for making valves. The wood frame used to make the valves is placed on a wood feed table, from which the wood frame is moved to a certain size to be cut. Cutting is most often done with a chain saw, which cuts the wood in a downward motion. The truncated wood will fall into the lower splitting trough in the longitudinal direction between the splitting cylinder and splitting blade. The wood splits as the splitting cylinder pushes against the splitting blade of the cut wood. In said machine type, the feed table with its trunk and the cutting blade are located above the splitting trough, whereby the truncated wood is transferred by gravity to the lower splitting trough.

A malfunction in the machine is often caused by a tree falling into the splitting trough, which is not supposed to lie longitudinally between the splitting cylinder and blade in the splitting trough. Freely falling wood is quite often oblique and very often transverse to the splitting trough. As the splitting cylinder moves the inclined or transverse wood against the splitting blade, it creates an indistinct flap, and often also when the hydraulic cylinder moves the transverse wood against the splitting blade, its power stops and the wood gets stuck in the splitting blade.

Removing jammed wood from splitting steel is a laborious, time consuming and also a safety hazard in terms of the operation of the flapper. Safety risks are often caused by disabling / disabling protective equipment, removing stalled wood from splitting steel, as well as by circumventing or removing protective mechanisms that increase the safety of the machine, so that the disruptive tree can be removed or repositioned quickly and easily. The malfunctioning of the above-mentioned machine is thus caused by the uncontrolled passage of the truncated wood into the splitting trough by free fall. The object of the present invention is to provide a valve machine which no longer has the problems caused by the incorrect positioning of the trees described above.

The foregoing and other advantages and advantages of the present invention have been achieved as set forth in the appended claims.

The invention will now be described in more detail with reference to the accompanying schematic drawings which illustrate, in principle, a preferred embodiment of the invention.

Figure 1 is a top view of the invention;

Fig. 2 shows the embodiment according to Fig. 1, viewed from the side and from the end in a starting position; and

Fig. 3 shows the embodiment according to Fig. 2 as seen at the end.

Figure 1 thus shows a valve machine 1 according to the invention, seen directly from above. Many details are omitted for clarity and custom. The wood, frame or log that is to be cut and split is indicated in the figures by reference numeral 2. It is fed to a cutting table 3, which usually has suitable means for holding the frame in place. Said means may be of any type. For the longitudinal feed of the body 2 for smooth cutting, the cutting table may be provided, for example, with rollers whose axial direction is generally transverse to the feed direction.

The splitting table is denoted by the reference numeral 6. It is usually trough-shaped, so that the piece of wood moving on it is usually located at its bottom longitudinally. The Hal rake blade 7 is located at the end of the trough. The sawn wood piece 2 'is pushed against the splitting blade by a substantially plate-like part 5, usually provided with a hydraulic cylinder 4. The movement path of the splitting cylinder does not extend all the way to the splitting blade 7 but still far enough to allow space for the next sawing wood piece.

Conventionally, the valve is thus made by feeding the body to the cutting station 3 on the cutting table, the cutting is usually performed with a chain saw 8, whereby the sawed part falls along a suitable wall into a splitting trough 6 where it is halved by movement of the splitting cylinder.

As previously mentioned, the problems are related to the fact that the sawn piece of wood does not agree nicely to the bottom of the splitting trough 6, but causes problems that require repair and are dangerous in the wrong position.

The solution to the problems according to the invention is as follows. Rather than being cut into the splitting trough 6, the sawn piece of wood, log 2 ', would immediately fall into place in place of the extension 9 of the cutting table. The extension 9 consists of two obliquely or directly angled arms 11, 12, the first arm 11 of which is provided at its lower end with a joint 15 pivotally connected to the lower plane of the machine frame. The distal end of the second leg 12 holding the piece of wood sawed with the leg 11 is secured to the body 14 of the machine via a joint 13.

When the extension 9 of the cutting table is moved from bottom to top in Fig. 1, which movement is naturally from left to right in Fig. 2, the arm 17 pivots about the joint 15, but the leg 12 secured to the body through the pivot 13 remains in place 11 as its subsidy rate decreases all the time. Thus, the situation shown in Fig. 3 is reached in which the sawed wood piece 2 'has moved to the splitting table / trough 6. Depending on the diameter of the wooden piece, the displacement takes place either very close to or at a short distance from the trough 6.

According to the procedure described above, the distance of the sawn piece from the support of the cutting table extension 9 to the splitting trough 6 is very short and the probability that the piece of wood is positioned incorrectly for splitting is minimal.

Figures 2 and 3 show one way to achieve a sawing motion by means of the arm 10 and the hinge 16, but it is to be understood that there are numerous ways and examples of other applications are abundant. Thus, the chain saw 8 is substantially upright and moves to the sawing position from left to right in Figure 2 when the handle 10 is pivoted about the pivot point 16 toward the tree to be sawn.

According to the invention, there is provided an alternative way of providing an automatic movement of a sawn piece of wood based on a rotary movement into a splitting trough. There are many other ways, of course. One way of remembering is to use tilting the extension of the cutting table, for example, by supporting it on a longitudinal axis, whereby pushing the extension 9 next to the splitting table would automatically cause the extension forming trough to tilt, whereby the sawed piece would move to the splitting table.

According to a preferred embodiment of the invention, the sawing motion also provides a series of movements resulting in the saw body 2 'automatically moving into the splitting trough 6. Thus, in this embodiment, the roll 18 fixed to the body of sawing tool 8 moves into contact with the surface of the leg 12. By means of pressure exerted on the leg 12, the roller 18 also causes the arm 17 and its extending leg 11 to protrude towards the splitting trough 6. Once sawing has been completed, that is, the log 2 'is only required a relatively small movement to move the log 2' into the splitting trough. Therefore, the whole process is automatic and, due to the simultaneous nature, also fast. It should be noted, however, that the arrangement using the roller 18 is by no means the only way to achieve such movement. For example, sliding surfaces or joints may be used.

Claims (7)

A valve machine (1) for use in cutting and splitting a tree body and comprising sawing means (8) for cutting the body (2) and a splitting table (6) having means (4, 5, 7) for slicing the sawn piece against the splitting blade (7); characterized in that the machine (1) comprises a separate cutting table (3) extending (9) to hold and support the cut wood piece (2 ') and to transfer it to the splitting table. Valve machine according to Claim 1, characterized in that the cutting table extension (9) comprises holding arms (11, 12) and an extension arm (17) which is pivotally hinged (15) at its free end to the frame structures of the machine (1). Valve machine according to Claim 1, characterized in that one of the retaining arms (11, 12) is fixedly fixed to the frame structures of the machine by means of a joint (13), whereby the extension arm (17) pivots towards the splitting table (6). supporting the wood piece (2 ') and moving the piece (2') to the splitting table (6). Valve machine according to Claim 1, characterized in that the sawing means (8) is also attached to the frame structures of the machine by means of a pivot arm (10) pivoting about the joint (16). Valve machine according to Claim 4, characterized in that the sawing means (8) consists of a substantially vertical chain saw which carries out the movement of the pivoting arm (10). Valve machine according to one of the preceding claims, characterized in that the frame structures of the sawing means (8) are provided with a mechanism by which the sawed wood piece (2 ') is displaced by the branches (11, 12) to the splitting gutter (6). Valve machine according to Claim 6, characterized in that the mechanism for moving the legs (11, 12) according to the sawing movement is based on a roller mechanism (18) based on the leg (12). claim