JP4450370B2 - Log processing equipment for raw wood - Google Patents

Description

The present invention relates to a log processing apparatus for raw wood, and more particularly to a log processing apparatus for raw wood in a forest business.

  In the conventional log processing, good logs with few bends and knots are brought into the log processing plant and processed into logs. Bending, extreme nodes, and those with a large diameter difference in the length direction are left on site or chipped, and all selection is performed manually.

  Even when processing a log, it is processed into a log with a diameter of 100 to 120 mm by cutting several stages with a large machine, and the amount paid for the raw wood to the producer after subtracting the processing cost etc. is small On the other hand, the profit of the log processor is also small.

  When a producer processes as a chip material, the producer sells the raw wood to a processing plant. In this case, since the cost of transporting to the raw wood processing plant is borne by the producer, the producer's profit is often several thousand yen, and in most cases, the profitability evaluation is low.

  As described above, there are few merits in processing raw wood.

In order to solve the above problems, the present applicant has already proposed Japanese Patent Application No. 2002-362649 “Log processing method and log processing apparatus for raw wood”.
JP 2000-317917 A JP-A-8-300315

  There is a demand for easy processing of raw wood into bare logs and reducing the processing costs. The present applicant has already proposed the Japanese Patent Application No. 2002-362649 “Raw Log Processing Method and Log Processing Device” to process large-diameter logs and to accurately peel the outside of the logs. I found the problem that the centering of the logs of the logs was necessary.

In the present invention, a non-circular cut blade that pushes a raw wood into a non-circular shape and an outer side of the raw wood that has been peeled into a cylindrical shape can be easily processed from the raw wood to a log, and the cost required for the processing can be reduced. It consists of an axial cutting blade that divides in the axial direction and a pressurizing means that pushes the raw wood in the axial direction, and is formed so that no frame is provided outside the axial cutting blade. A log processing device for raw wood provided with a ring device .

The present invention comprises a non-circular cut blade that pushes a raw wood into a non-circular shape, an axial cut blade that divides the outside of the raw wood that has been peeled into a cylindrical shape in the axial direction, and a pressurizing means that pushes the raw wood in the axial direction. Formed so as not to provide a frame on the outside of the axis cutting blade, and with a log processing device with a centering device before and after the log of the log , it is easy to process from log to log This can be done and the cost for processing can be reduced.

  The present invention will be described in detail below based on a specific embodiment shown in the accompanying drawings.

  1 is a front view of a log processing apparatus for raw wood, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a right side view of FIG. Here, an example in which thinned wood is used as raw wood is described.

  In the log processing apparatus of the present raw wood, a stand 2 is provided on a carriage 1 and a thinned wood receiving stand 3 is horizontally installed on the stand 2. A front centering device 21, a rear centering device 22 on the rear end side, and a cutter 5 immediately after the rear centering device 22 are arranged on the front end side of FIG. A hydraulic pusher cylinder 6 for pushing the thinned wood into the left end of the thinned wood receiving pedestal 3 is provided so that it can be folded and stored. A thinning material receiver 7 is also folded at the right end of the thinning material holder 3 so that it can be stored. A belt conveyor 9 for horizontally supplying the thinned material 8 is provided on the side of the thinned material receiving base 3 so as to be folded and retractable.

  FIG. 4 is a side view of the main part of the log processing apparatus of the original wood, and shows the front centering device 21 and the rear centering device 22.

  A front centering device 21 and a rear centering device 22 are shown.

  The front centering device 21 and the rear centering device 22 are provided to accurately peel the outside of the thinned material 8 and complete the centering of the thinned material 8 of the thinned material receiving base 3. The front centering device 21 and the rear centering device 22 include a thinning material support 3 that supports the thinning material 8, a sandwiching cylinder 23 provided on the mount 2, and a pin that adjusts the thinning material 8 to the center position of the cutter 5. The height adjustment bar 24, the lower pedestal 25 for supporting the thinned material 8 from below, the upper presser base 26 for pressing the thinned material 8 from above, and the movement of the piston rod 27 of the sandwiching cylinder 23 in the vertical direction A sandwiching lower link device 28 that transmits to the lower cradle 25, a sandwiching upper link device 29 that sandwiches the upper presser base 26 via the sandwiching height adjustment bar 24, and transmits the movement of the piston rod 27 of the cylinder 23 in the vertical direction. It becomes more.

  In order to facilitate the positioning of the thinned material 8, the thinned material support 3 is formed with an upper surface in a V-groove.

  The proximal end of the sandwiching cylinder 23 and the distal end of the piston rod 27 are pin-coupled, and the output thereof is transmitted to the sandwiching lower link device 28 and the sandwiching height adjusting bar 24 by the vertically swinging motion of the piston rod 27. The sandwiching cylinder 23 swings around the pin 30.

  The sandwiched lower link device 28 includes a drive link 30 and a driven link 31 arranged in parallel to the drive link 30. The left end of the drive link 30 in the drawing and the right end of the lower link base 25 are respectively connected to the pins 32. 33, and the left end of the driven link 31 is pivotally attached to the gantry 2 and the right end is pivotally attached to the lower cradle 25 with pins 34 and 35, respectively, and the pins 32, 33, 34, and 35 are arranged to form a parallelogram. Then, the lower end of the piston rod 27 of the sandwiching cylinder 23 and the lower end of the sandwiching height adjusting bar 24 are pivotally attached by a pin 36.

  The sandwiching upper link device 29 includes a drive link 37 and a driven link 38 arranged in parallel to the drive link 37, and the left end of the drive link 37 is pivotally connected to the frame 2 and the right end is pivotally connected to the upper presser base 26 by pins 39 and 40, respectively. The left end of the driven link 38 is pivotally attached to the gantry 2 and the right end thereof is pivotally attached to the upper presser base 26 by pins 41 and 42, respectively, and the pins 39, 40, 41, and 42 are arranged to form a parallelogram.

  The lower end of the sandwiching height adjusting bar 24 pivotally attached to the left end of the drive link 30 and the lower end of the piston rod 27 of the sandwiching cylinder 23 by a pin 36 is connected to the pin 39 between the pins 39 and 40 of the drive link 37 by a pin 43. Pivot.

  The sandwiching cylinder 23 is driven, the piston rod 27 is extended, the thinning material 8 on the thinning material receiving base 3 is gripped by the lower receiving base 25 and the upper holding base 26, and moved upward to move the outside of the thinning material 8 Position it where it will be split and removed.

  Since the thinned material 8 supplied from the belt conveyor 9 is heavy, it is once supported by the thinned material receiving base 3.

  In order to adjust the height of the pinch height adjusting bar 24 in order to adjust the height of the thinned lumber 8, turnbuckles 43 and 44 and lock nuts 45 and 46 are arranged above and below, respectively.

  The thinned wood 8 is placed on the thinned wood cradle 3 in FIG. 5 and the piston rod 27 of the sandwiching cylinder 23 is contracted, and the piston rod 27 of the sandwiched cylinder 23 extends in FIG. The state where it is gripped by the lower cradle 25 and the upper presser pedestal 26 at the processing position for peeling off is shown.

  Next, adjustment of the processing center position of the thinned material 8 will be described with reference to FIG.

In FIG. 7a, reference numeral 5 denotes a cutter, and FIG. 7a shows a normal state.

  First, the lock nuts 45 and 46 are loosened.

  Next, when the processing center position is shifted upward (FIG. 7b), the turnbuckles 43 and 44 are sandwiched in the tightening direction and the height adjusting bar 24 is rotated to adjust.

  When the processing center position is shifted downward (FIG. 7c), the turnbuckles 43 and 44 are loosened and the height adjusting bar 24 is turned to adjust.

The thinned material 8 is gripped by the lower cradle 25 and the upper presser table 26, and it is confirmed that the center of the thinned material 8 and the center of the cutting blade 47 match.

When the center of the thinned material 8 and the center of the cutter 5 coincide, the lock nuts 45 and 46 are tightened to fix the turnbuckles 43 and 44.

  8 and 9 are perspective views of the rear centering device 22.

  A lower cradle 25 and an upper presser base 26 are provided to sandwich the large and small thinned material 8. Since the front centering device 21 and the rear centering device 22 are separated and independent from each other, the thinning material 8 can be sandwiched regardless of whether it is thick, thin, or slightly bent or warped. Both ends of the material 8 can be firmly held.

  The upper presser base 26 of the front centering device 21 is set to be long and serves to grip the thinned wood 8 pushed out by the pusher cylinder 6 so that it does not fall during log processing. The rear centering device 22 Since it is installed immediately before, it plays the role of gripping the tip of the thinning material 8 and the center of the thinning material 8 and the center of the cutter 5, unlike the lower cradle 25 of the front centering device 21, The lower cradle 25 of the rear centering device 22 need not be long.

  Next, the cutter 5 will be described.

  The processed hexagonal or oval cross-section logs are easy to stack, can be stacked and used as a retaining wall for civil engineering work, and can be used as environmentally friendly civil engineering materials.

  Reference numeral 54 denotes a control panel.

  FIG. 10 is a front view of the cutter 5, and FIG. 11 is a side view showing a part of FIG.

The cutter 5 has a cylinder 51 at the center, and a cutting blade 52 (hexagonal cutting blade 52 ₁ and oval cutting blade 52 ₂ described later in the present invention) is formed at the end of the cylinder 51. In order to divide the thinned wood that has been peeled off into a cylindrical shape in the axial direction, axial cutting blades 53 are provided radially outward from the cylinder 51.

12, 13, a hexagonal cutting blade 52 ₁ in FIG. 14, FIG. 15, FIG. 16 shows a oval cut blade 52 ₂ in FIG. 17.

By attaching the hexagonal cutting blade 52 ₁ or the oval cutting blade 52 ₂ to the cylinder 51, a log having a hexagonal cross section or an oval cross section, which has been conventionally troublesome, can be easily processed.

  Moreover, since the cutter 5 of the present invention was formed so as not to provide a formwork body outside the axis cutting blade 53, it was possible to process the thinning material 8 having a large diameter.

  The cutter 5 can be replaced with one having various diameters according to the diameter of the log.

  Next, the operation of the log processing apparatus of the original wood will be described.

First, the thinned material 8 is placed on the thinned material cradle 3. Subsequently, when the pusher cylinder 6 is driven, the thinned material 8 is pushed in and moves to the right in the drawing to reach the cutter 5. Then, the thinned material 8 is pushed into the hexagonal cut blade 52 ₁ or the oval cut blade 52 _2, and the outer periphery of the thinned material separated into a cylindrical shape is divided into six in the axial direction by the axial cut blade 53.

  In the above-described embodiment, an example in which the cutter has six axial cutting blades has been described, but the present invention is not limited to this and can be set to a suitable number.

  Although the present invention has been described centering on processing of a hexagonal or oval cross-section log from thinned wood, the present invention is not limited to this, and can also be used for processing a hexagonal or oval cross-section log from raw wood other than the thinned lumber.

It is a front view of one specific Example of the log processing apparatus of the raw wood of this invention. It is a top view of FIG. It is a right view of FIG. It is a front view of the principal part of the log processing apparatus of the raw wood of this invention. It is a front view in the state where it was mounted on the thinning material stand of the present invention, and the piston rod of the pinching cylinder was contracted. It is a front view of the state hold | gripped with the lower receiving stand and the upper press stand in the process position which the piston rod of the pinching cylinder of this invention expand | extends and peels the outer side of a thinning material. FIGS. 7A and 7B are diagrams illustrating the adjustment of the machining center position according to the present invention, FIG. 7A is a normal state, FIG. 7B is a diagram in which the machining center position is shifted upward, and FIG. 7C is the machining center position being shifted downward; FIG. It is a perspective view of the rear part centering apparatus of this invention. It is a perspective view of the rear part centering apparatus of this invention. It is a front view of the cutter of the Example of this invention. It is a side view which shows a part of FIG. 10 in a cross section. It is a front view of the hexagonal cut blade of the present invention. It is a longitudinal cross-sectional view of the hexagonal cutting blade of this invention. It is a perspective view of the hexagonal cut blade of the present invention. It is a front view of the oval cut blade of this invention. It is a longitudinal cross-sectional view of the oval cut blade of this invention. It is a perspective view of the oval cut blade of this invention.

8 ... Thinned wood (example of raw wood)
52 ₁ ... Hexagonal cutting blade (example of non-circular cutting blade)
52 ₂ ... Oval cutting blade (example of non-circular cutting blade)
53 ... Axis cut blade 6 ... Pusher cylinder (example of pressurizing means)
21 ... Front centering device (example of centering device)
22 ... Rear centering device (example of centering device)

Claims (1)

The non-circular cutting blade that pushes the raw wood into a non-circular shape, the axial cutting blade that divides the outside of the raw wood that has been peeled into a cylindrical shape in the axial direction, and the pressurizing means that pushes the raw wood in the axial direction. A log processing device for raw wood, which is formed so as not to have a frame on the outside, and is provided with centering devices before and after the raw wood of the raw wood cradle.

Images