JPS6067101A - Three-surface sawing machine - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, small-diameter wood such as raft lumber has been sawn into squares, or even smaller diameter wood has been sawn into rafters, slats, small lN11 boards, etc.

One of the products is obtained by two-sided sawing twice.

However, for products such as rafters and narrow boards, which are made into IJ, board material and then divided into small pieces, the diameter of the small diameter wood is large. After that, in the third step, the width of the product is cut sequentially from one side, which results in high costs even though it is a low-priced product, and the cutting area may be remote, or the diameter may be relatively small and the quality may be poor. Small diameter trees with poor quality could not be used economically and were abandoned.

The present invention is a sawmill that can saw in one plane in addition to the two parallel planes in the first step, omitting the conventional second step, thereby significantly reducing the cost of sawing small-diameter wood. The log support device is made up of a support rod that engages and holds both ends of the log, and a support body that supports the middle portion, and on both sides of the log support device, A pair of saws whose plate surfaces are parallel are arranged opposite each other at an interval corresponding to the width of the product obtained from the log, and a saw whose plate surfaces are orthogonal to the pair of saws is arranged on the opposite side of the log support device, The present invention is characterized in that the relative positions of the log support device and the orthogonal saw are adjustable.

The embodiment shown in the drawings will be explained below.+41
+ lHd A-1-'-A=ni8 M --+ J
-Top-YJ-A-M A pair of left and right circular saws 5, 5, which are parallel and driven by separate motors, are mounted so that they can both move outward or inward toward the core of the log, which will be described later, and can move forward and backward. A horizontal circular saw 6, whose plate surface is perpendicular to the pair of circular saws 5.5, is attached to the front part along with a motor 7.

8 is an I-shaped beam installed directly under the circular saws 5, 5,
A spiked movable support rod 1o is erected on a pedestal 9 provided at the upper part of its front end, and the pedestal 9 is moved back and forth by an air cylinder 11.

In addition, a fixed support rod 1 with spikes is attached to the rear of the construction beam 8.
2 is standing.

A plurality of supports 13 are supported at intervals in the intermediate portion of the ■-shaped beam 8 via air cylinders 14 so as to be movable up and down.

In the above-mentioned apparatus, a small-diameter tree A such as a raft lumber is fed onto the support 13, and depending on its diameter, the base and the end are higher than the horizontal circular saw 6 by the thickness h of the back plate. As shown in Fig. 4, push up the base a little and push up the rear part more by using the air cylinder 14@-, and then move the movable support rod lO.
When the air cylinder 11 is moved to the right in FIGS. 1 and 4, the spikes of the movable support rod IO and the fixed support rod 12 penetrate into the end of the log A and are securely clamped.

As shown in Fig. 3, the amount of pushing up of the support 13 is increased when the diameter of the small diameter tree is small, and decreased when the diameter is large. to zoom in and out.

In this state, when each of the circular saws 5, 5.6 is rotated and the carriage 1 is moved to the left in Fig. 11, the horizontal circular saw 6
cuts the upper part of the small-diameter wood A, and the paired circular saws 5 and 5 saw both sides parallel to each other, so one sawing process saw three pieces at the same time.
Can perform surface sawing.

In addition, when the small diameter tree A is bent, the bending direction is in the vertical direction and the middle part is lowered, and after setting both ends with the movable support rod lO and the fixed support rod 12, the middle part is supported. body 13.13 and air cylinder 14
In the embodiment described above, positioning was carried out by pushing up the small-diameter wood, but the small-diameter wood is supplied to a support that does not move up and down.
Both ends are held between a movable support rod 10 and a fixed support rod 12, and the motor 7 of the horizontal circular saw 6 is attached to a sliding table that moves up and down with respect to the running table 1, and the horizontal circular saw 6 is cut into a small diameter tree A. On the other hand, even if it is raised and lowered, the same effects as in the above-mentioned embodiment can be obtained.

Further, the circular saws 5, 5, the horizontal circular saw 6, and their accompanying devices are mounted on a frame at a certain position, and a support 13 is unloaded by a fixed support rod 10, a movable support rod 12, and a hydraulic cylinder 14. may be mounted on a narrow traveling carriage, and the traveling carriage may be supported on the ■-shaped beam 8 so as to be movable.

Then, the material whose three sides have been sawn in step 1 is supplied to a roller table or a sawing machine equipped with multiple saws, and when the parallel sawing surfaces are made horizontal, the sawing surfaces perpendicular to the sawing surfaces are made vertical. Therefore, split sawing can be performed immediately without using this saw.

Next, another embodiment of the present invention will be explained with reference to FIGS.
A single circular saw is used to saw the surface, but if this single surface is sawed with a pair of circular saws on the left and right sides, approximately equal cutting force will be applied to the small diameter wood A from the left and right sides, resulting in more stable sawing. can be done.

In other words, the set small diameter tree A has both ends fixed to the support rod l.
O and the movable support rod 12, and the middle lower part is supported by the support 13, so the small diameter tree A maintains a stable state against the force applied from above to downward. When a force is applied from the lateral direction, it is likely to cause twisting, and not only is an unreasonable force applied to the horizontal circular saw 6, but also a lateral force is applied to the vertical circular saw 5.5, causing the saw to become twisted. There is a risk of the sawing surface being bent or the circular saw 5.5 being damaged.

The example shown in Figs. 5 and 6 improves this drawback by running a pair of left and right horizontal circular saws 6.6. Sea, -1--
/-1,-Kouhachi-n-AI-1 When it rolls, a horizontal circular saw6.
The cutting force of No. 6 acts equally on the left and right sides of the small-diameter wood A, eliminating all of the above-mentioned drawbacks.

In any of the embodiments, the horizontal circular saw 6 is mounted on a traveling base l.
It may also be provided at the rear (on the opposite side of the position shown in FIG. 1).

As described above, the present invention comprises a log support device consisting of a support rod that locks and holds both ends of a log, and a support body that supports an intermediate portion, and the plate surfaces are parallel to each other on both sides of the log support device. A pair of saws are arranged oppositely at an interval corresponding to the width of the product obtained from the log, and a saw whose plate surface is orthogonal to the pair of saws is arranged on the opposite side of the log support device, and the log support device Since the construction allows for relative positioning of the saw and the orthogonal saw, even if the diameters of the small-diameter wood differ, the position of the saw whose plate surface intersects the pair of saws by 1μ and the small-diameter wood can be determined by 1ξ. By sawing the small-diameter wood while holding both ends of the small-diameter wood, the diameter of the small-diameter wood differs between the base and the end. Two sides and one side perpendicular to it can be sawed simultaneously in one process, and when sawing board materials obtained from small diameter wood into rafters, sills, packaging materials, and other small width boards, it is suitable for sawing in the selving process. It is possible to omit the sawing machine used and the workers required for this process, significantly reducing the cost of sawing small-diameter wood, and it is possible to reduce the cost of sawing small-diameter wood. It is also possible to utilize raft material with a relatively small diameter.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention. Fig. 1 is a side view, Fig. 2 is a cross-sectional view of the carriage track, Fig. 3 is a front view of the main part showing a partial cross section, Fig. 4 is a side view showing the operation, and Fig. 5 is a cross-sectional view of the carriage track. A front view of the embodiment, and FIG. 6 is a plan view of the same. lΦ・Traveling stand 5#・Working beam 6・Circular saw 7・Horizontal circular saw

Claims (1)

[Claims] A log support device is composed of a support rod that locks and holds both ends of the log, and a support body that supports the middle portion, and a pair of saws with parallel plate surfaces are installed on both sides of the log support device to cut the log from the log. A saw that is arranged oppositely at an interval corresponding to the width of the product to be obtained, and whose plate surfaces are orthogonal to the pair of saws, is arranged on the opposite side of the log support device,
Relative position adjustment U of the log support device zt and the orthogonal saw
(Three-sided sawmill 6 characterized by its unique configuration)