JPS62101401A - Method of cutting log in veneer lathe - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for cutting logs in veneer lace.

[Prior art]

Conventionally, as a method to prevent the log from bending due to cutting resistance when cutting the log, a rotary roll (bank-and-roll) that can be freely driven by the log is pressed against the center of the log at a position almost opposite to the cutting tool. Something was being done.

[Problem that the invention seeks to solve]

However, in the method of the prior art, if the pressing force of the rotating roll against the raw wood is large, the raw wood may be bent in the opposite direction, resulting in uneven thickness of the cut veneer, or the end face of the raw wood may be held. There is a problem that the spindle and the end face become misaligned, making cutting impossible, and conversely, if the pressing force is reduced, hending cannot be prevented.

[Means for solving problems]

The present invention is intended to solve the above problem, and its contents will be explained below using FIGS. 1 to 5 corresponding to embodiments.

The method of cutting raw wood for veneer lace of the present invention is to form a hole 2 in at least one end face of the raw wood 1, insert the tip of the spindle 3 of the veneer lace into the nucleation 2, and cut at least one integrally formed hole 2 into the core 2. The pressing member 6, 8, 9, or 10 is configured to cut while being pressed against the outer periphery of the log 1, including the inserted portion corresponding to the spindle 3.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings.

As shown in Figures 1 and 2, a drill (with approximately the same diameter as the spindle 3 of the veneer lace) is drilled into both end faces of the log 1 in advance.
(not shown) to make holes 2, then veneer lace A
At this point, the spindle 3 is inserted into each hole 2 so that its tip comes into contact with the inner end surface.

Further, the veneer lace has a cutter 5 mounted on a normal cutter rest 4, and a rotating roll 6 is provided at a position substantially opposite to the cutter 5 to press against the log 1. The rotating roll 6 has a length substantially equal to the entire length of the log 1, and the vicinity of both ends thereof correspond to the portion of the spindle 3 inserted into the log 1. Further, the rotary roll 6 is rotatably attached to a known movable support member 7 that moves the rotary roll 6 toward the center of the log 1 while being in pressure contact with the log 1 as the log 1 is cut and its diameter becomes smaller. It is equipped.

In the configuration described above, ty+ cutting of log 1 is performed as follows.

By rotationally driving the spindle 3, the log 1 is rotated and the cutting tool rest 4 is advanced toward the log 1, and the movable support member 7 is operated to rotate the rotary roll 6.
It is pressed against the circumferential surface.

Therefore, the raw wood 1 is cut by the cutter 5, but the rotating roll 6 does not cause the above-mentioned problem.

That is, the rotating roll 6 has a shape in which the log 1 is sandwiched between the spindle 3 and the rotating roll 6 near its end.
Even if the rotary roll 6 is pressed against the log 1, the log existing between it and the spindle 3 prevents the rotary roll 6 from approaching the spindle 3 excessively.

Furthermore, since the rotating roll 6 is integrally constructed, this state is also the same at the center of the rotating roll 6.
Since the raw wood 1 is always pressed in parallel by the rotating rolls 6, a veneer of good thickness can be cut without bending. Moreover, the pressing force of the rotating roll 6 is applied to the circumferential surface inserted into the hole 2 rather than the end surface of the spindle 3 via the log I, so the spindle 3
There is no possibility that the wood 1 and the wood 1 will be misaligned and become uncuttable.

In the above embodiment, the rotary roll 6 was constructed as a single roll, but as shown in FIG. Each may be pressed against the outer peripheral surface of the log 1 corresponding to the portion inserted into the hole 2 of the spindle 3.

Further, as shown in FIG. 4, for example, three drive rolls 9 each having a length approximately equal to the total length of the log 1 are provided so as to be able to press against the outer peripheral surface of the log 1 when the spindle 3 is inserted into the hole 2 of the log 1. Similarly, the movable support member 7 may be configured so that the log 1 is rotated and cut by the spindle 3 and the drive roll 9. In this way, it is possible to prevent steering and to supply driving force.

In addition, although the above example shows the case where holes are made on both end faces of the raw wood, it is also possible to make holes on only one side of the end face of the raw wood, insert a spindle in the same way, and use the same rotating roll 6, etc. as described above. It is possible, or conversely, a hole may be made through the raw wood, the spindles may be inserted from both ends, abutting at the center, and cutting may be performed in the same manner using the rotating roll 6 or the like.

On the other hand, instead of the rotating roll, a fixed body 10 that is integrally formed and has a flat pressure contact portion may be provided on the movable support member 7, as shown in FIG.

Furthermore, Japanese Patent Application Laid-Open No. 58-114 filed by the applicant of the present invention
The cutting method of the present invention may be applied to the veneer lace described in the previous No. 9 publication.

Furthermore, the present invention has been developed by adding the configuration shown in FIG. A cutting method may also be implemented.

〔Effect of the invention〕

As described above, according to the present invention, the problem of the hack-up roll in the conventional veneer lace is solved, and when cutting the log with the henier lace, the log is not bent and the cutting is performed well. be.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a side view of another embodiment, and FIG.
The figure is an explanatory side view of another embodiment, and FIG. 5 is an explanatory side view of another embodiment. 1... Log, 2... Hole, 3... Spindle, 5...
...Knife, 6... Rotating roll, 7... Moving support member, 9... Drive roll. Agent Patent Attorney Yusuke Hiraki Figure 1 Figure 2

Claims (1)

[Claims] A hole is formed in at least one end surface of the raw wood, the tip of a spindle of the veneer lace is inserted into the hole, and at least one integrally formed pressure body is applied to a position corresponding to the spindle of the inserted part. A method for cutting logs in veneer lace, which is characterized in that cutting is performed while the logs are in pressure contact with the outer periphery of the log.