JPS61193801A - Ripping method of wood by multispindle molder - 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 Field of Industrial Application This invention relates to a method for vertical sawing of wood using a multi-axis molder, and more specifically, a saw blade is attached as a rotary cutting means to the multi-axis molder, The saw blade is used to vertically saw the wood, leaving only a required thickness uncut, and the uncut portion of the wood is removed by a rotary cutting means of a planer cap disposed downstream of the saw blade, and the wood is sawed several times. This invention relates to a new method for vertically sawing wood to obtain split pieces.

BACKGROUND OF THE INVENTION Conventionally, woodworking machines such as circular saws and bandsaws have been used as means for sawing wood vertically. This circular saw machine is a chip saw that cuts wood into two vertically sawn pieces with one saw blade, and a plurality of saw blades arranged parallel to each other at required intervals in the axial direction of the rotating shaft to cut a large number of pieces of wood. It is divided into a gigantic saw, which is used to cut vertically sawed books. Vertical sawing of wood can also be carried out using a multi-shaft molder, and in this case, the wood is cut horizontally and at right angles to the wood feeding direction of the multi-shaft molder. Instead, a saw blade of the required diameter is attached, and this saw blade is used to saw the wood vertically. However, in either case, the cutting amount of the saw blade is set to be larger than the thickness of the wood.

Problems to be Solved by the Invention In order to vertically saw wood as described above using a multi-shaft molder, for example, in the multi-shaft molder 10 shown in FIG.
Instead of the upper planer 14, which is disposed perpendicular to the supply direction of the wood to be processed 16, a saw blade 26 is attached to its rotating shaft 15 as shown in FIG. The protrusion height L is set to protrude above the thickness L of the wood 16 to be processed. Then, the saw blade 26 is rotated by a motor (not shown) to vertically saw the wood 16 to be processed into two or more vertically sawn pieces. However, in this case, since the effective cutting height L of the saw blade 26 is set larger than the thickness of the wood 16 to be processed, a large amount of sawdust 22 discharged when cutting the wood 16 to be processed is placed above the wood. This can damage the good environmental conditions by scattering into the wood, and also damage the
When the cutting is finished, the wood cut into multiple pieces is transferred to the saw blade 2.
6, it rebounded and jumped up, making it extremely dangerous to work with. Furthermore, it has been pointed out that the sawn wood vibrates or bounces, causing it to come into contact with the rotating saw blade 26 irregularly, damaging the end of the wood and making the cutting tube defective. .

Purpose of the Invention The present invention has been proposed in order to suitably solve the above-mentioned drawbacks that are pointed out when performing vertical sawing using a multi-shaft molder. It is an object of the present invention to provide a novel vertical sawing method in which good recovery is achieved, there is no repulsion during cutting, and a good cutting surface is obtained.

Means for Solving the Problems In order to achieve the above object, the vertical sawing method using a multi-shaft molder according to the present invention provides a multi-shaft molder in which rotary cutting means are respectively disposed on the upstream side and the downstream side with respect to the wood feeding direction. In the molder, a saw blade is attached as a rotary cutting means on the upstream side, and the saw blade performs vertical sawing by leaving a predetermined thickness of the wood uncut, and then another rotary cutting means disposed downstream of the saw blade The method is characterized in that the wood is vertically sawn into two or more boards by cutting and removing uncut portions of the wood.

EXAMPLE Next, the method of vertical grinding using a multi-screw molder according to the present invention will be described in detail below with reference to the accompanying drawings, using preferred examples. Fig. 1 is a side view of a multi-spindle molder that can carry out the method of the present invention, and Fig. 2 shows a case in which the method of the present invention is carried out by installing a gearing saw consisting of a plurality of saw blades in place of a rotary cutting body such as a top plane. Explanatory longitudinal cross-sectional view, Fig. 3(a) to (
c) is a cross-sectional view of the processed wood at positions corresponding to (a) to (c) of FIG. 2, respectively. Furthermore, FIG. 4 is an explanatory longitudinal cross-sectional view when the method of the present invention is carried out by attaching the above-mentioned gearing saw in place of the upper hook, and FIGS. 5(d) to (L) are respectively (d) to ( FIG. 6 is a cross-sectional view of the processed wood corresponding to f).

In the multi-axis molder 1O shown in FIG. 1, an upper hook 12 and an upper planer 14 are arranged with a predetermined distance between them on the downstream and upstream sides with respect to the feeding direction of the wood to be processed 16.

The upper hook 12 and the upper plane 14 are rotationally driven by a motor (not shown), and are connected to a lifting mechanism (not shown) so that they can vertically move up and down within a predetermined range. Further, reference numeral 18 indicates a side cutter that cuts both vertical side surfaces of the processed wood 16 that is transferred on the table 20 of the multi-axis molder IO.

To carry out the method of the present invention, for example, as shown in FIG. 2, a gearing saw 24 is installed in place of the upper planer 14, which is disposed horizontally and at right angles to the wood feeding direction of the multi-axis molder 10. The gearing saw 24 has a required number of spacers spaced apart from each other by a predetermined distance in the longitudinal direction of the rotating shaft 15.
Multiple saw blades are attached in parallel through the saw blades. As shown in FIG. 2, the gearing saw 24 has a protruding amount (cutting height) L from the table 20 of the multi-axis molder 10 set to be smaller than the thickness L of the wood 16 to be processed. With this setting, as the vertical sawing by the gearing saw 24 progresses, an uncut portion (A-A) will exist in the wood 16 to be processed in its longitudinal direction.

Further, an upper hook 1 disposed on the downstream side of the gigang saw 24
2 is set to be larger than the thickness of the uncut portion, that is, the difference between the thickness L of the wood 16 to be processed and the protrusion amount of the gigang saw 24.

The wood 16 to be processed is vertically sawed by the multi-axis molder IO configured as described above, as shown in the cross sections of FIGS. 3(a) to 3(C). That is, Fig. 2(a)
The workpiece wood 16 shown in FIG. 3(a), which is a cross-sectional view at a position corresponding to
0 is sent in the direction of the arrow while being pressed by the feed roll 30, and is moved by the gearing saw 24 as shown in FIG.
As shown in b), the wood 16 to be processed is vertically sawn with a predetermined thickness 1-A) left uncut at the upper end. Next, the uncut portion of the wood 16 to be processed is removed by an upper hook 12 disposed downstream of the gigang saw 24 and above the table 20. As a result, the wood 16 is divided into a plurality of vertically sawn pieces 28, as shown in the cross section of FIG. 3(c).

FIG. 4 shows another embodiment of the method of the present invention, in which the gearing saw 24 is attached to the rotating shaft 15 for the upper hook 12 of the multi-shaft molder 10. In this case, as shown in FIG. The cutting amount of the upper hook 14 horizontally arranged on the downstream side is determined by the difference (A-
Set larger than u4). In other words, the amount of protrusion of the upper hook 14 from the table 20 is made larger than the difference between the amount of cutting by the gigang saw 24 and the wood 16 to be processed. With this configuration, (d) to (f) in FIG.
As shown in FIGS. 5(d) to 5(f), which correspond to the positions shown in FIG. Next, the wood 16 to be processed with the lower end left slightly uncut is vertically sawed by cutting it to a predetermined thickness using the upper hook 14 disposed on the downstream side. In this case, the chips 22 cut by the upper hook 12 scatter upward, but by providing an appropriate dust collector,
It is possible to prevent the chip 22 from scattering.

In this embodiment, a gigantic saw comprising a plurality of saw blades has been described, but the above-mentioned or whirlpool saw can be suitably implemented in the same manner.

Effects of the Invention As described above, according to the method of the present invention, when the workpiece wood is vertically sawed using a multi-axis molder, the workpiece wood is not yet processed at the stage where the workpiece wood has been vertically sawn by the gigang saw. Since the wood is not completely cut, there is no repulsion or splash caused by the gigang saw, ensuring the safety of the worker, and the cutting end of the wood to be processed is not damaged, resulting in a good cutting surface. It is something.

Note that if a Giang saw is attached instead of the upper hook, the saw chips cut by the Giang saw will hit the uncut portion of the wood to be processed and fall downward, so they will not scatter on the table surface of the multi-axis molder.

[Brief explanation of drawings]

FIG. 1 is a side view showing the schematic structure of a multi-spindle molder that can suitably carry out the method of the present invention, and FIG. 2 is a side view showing the schematic structure of a multi-spindle molder that can suitably carry out the method of the present invention. Explanatory longitudinal sectional view when carrying out the method, FIG. 3(a)
- (c) are cross-sectional views of the processed wood at positions corresponding to (a) to (c) in Fig. 2, respectively, and Fig. 4 shows the method of the present invention being carried out by installing the above-mentioned gigang saw in place of the upper hook. Explanatory longitudinal cross-sectional views of the case, Figures 5 (d) to (f) are respectively (d) of Figure 4.
Fig. 6 is a longitudinal sectional view illustrating a vertical sawing method according to the prior art.

Claims (1)

[Claims] In a multi-spindle molder in which rotary cutting means are arranged on the upstream side and the downstream side with respect to the wood feeding direction, a saw blade is attached as the rotary cutting means on the upstream side, and the saw blade leaves the wood uncut by a predetermined thickness. to grind vertically,
Wood produced by a multi-axis molder, characterized in that the wood is vertically sawn into two or more boards by cutting off the uncut portion of the wood using another rotary cutting means disposed downstream of the saw blade. Vertical grinding method.