JPS6377701A - Multiple sawing circular saw 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] <<Object of the Invention>> Industrial Application Field> The present invention relates to a lumber sawing device, and particularly relates to a multi-grinding circular saw machine that can perform multiple sawing operations at once. be.

<Prior art> Conventionally, multiple drive shafts with a common axis are driven integrally by a motor, etc., and each drive shaft is provided with a separate circular saw blade, thereby cutting multiple pieces of material at once. Sawmilling equipment is used that forms streaks to enable efficient sawing and splitting. By the way, this type of multi-grinding circular saw machine performs the desired sawing by adjusting the distance between each circular saw blade or the distance between these blades and a ruler depending on the sawing size of the material, but in most cases The circular saw blade at the most proximal end is fixedly installed, while the circular saw blade and the ruler on the shaft end side are movable to enable the above-mentioned adjustment. However, when it comes to setting the circular saw blades and rulers according to the sawing size, it is far more convenient to work and use the blades if the positions of all the circular saw blades are adjustable. Regarding the ruler, it is a reality that the circular saw blade at the base end of the drive shaft and the ruler are often used while maintaining their relative set positions. For this reason, in most conventional products, at least one circular saw blade is fixed and cannot be set at any desired position. Moreover, the various operations related to this, such as setting the ruler board, were not always satisfactory.

The present invention was made in view of the problems of the prior art as described above, and it aims to efficiently carry out various tasks such as dimension setting work when sawing and splitting wood, feeding work of wood, etc. The present invention is intended to provide a circular saw machine capable of performing multiple sawing operations.

(Structure of the invention) Means for achieving the object> That is, the multi-grinding circular saw machine of the present invention has a plurality of circular saw blades that rotate integrally with a common axis and that move separately from each other in the thrust direction. In the sawmilling machine, all of the circular saw blades are attached to be movable relative to the base frame of the machine, and so as to cooperate with the circular saw blade provided at the most proximal end of the drive shaft of the circular saw blades. This is characterized in that a ruler plate is provided on the holder, thereby achieving the above object.

<Examples> The present invention will be specifically described below based on illustrated examples. Reference numeral 1 denotes a multi-grinding circular saw machine according to the present invention, which is equipped with, for example, four circular saw blades, and is configured to be able to form four sawing lines at a time. That is, the base frame 2 in the multi-grind circular saw machine 1 is the circular saw machine unit 3 which directly carries out the sawing action.
are supported on both sides, and a material feeding device 4 is supported in the center.

First, the circular saw unit 3 is such that a movable frame 5, which is a part thereof, is slidably attached to the base frame 2 via a slide guide 6. With such a configuration, the movable frame 5 is configured to be able to slide in a direction perpendicular to the center of the sawing path of the material. The shift structure for this movable frame 5 is achieved by fixing a screw nut 7 to the lower surface of the movable frame 5, and attaching a screw shaft 8 to the base frame 2 to be engaged with the screw nut 7, which is rotated by a shift motor M. Take the configuration to do it. Furthermore, a bearing 10 is fixed within this movable frame 5, and this bearing 10 rotatably supports a drive shaft 11. A pulley 12 is fixed to one end of the drive shaft 11, and this pulley 12 is connected to the bearing 1.
It faces the output pulley 14 of the drive motor M2 mounted on the movable frame 5 substantially above the movable frame 5, is connected therebetween by a belt 15, and is driven by the rotation of the drive motor M2. As an example, the drive shaft 11 has a double structure on the working end side, and is composed of an outer shaft 16 and an inner shaft 17. These outer shaft 16 and inner shaft 17 are spline-fitted to each other, and are configured to rotate integrally and to be able to move separately from each other in the thrust direction. A circular saw blade 18 on the base end side is fixed to the outer shaft 16, and a circular saw blade 19 on the shaft end side is fixed to the inner shaft 17. The inner shaft 17 is formed to extend toward the pulley 12, and is moved in the thrust direction by an appropriate shifter device 20 to adjust its set position. Since these mechanisms are already known, further detailed explanation will be omitted. A ruler device 22, which is a characteristic feature of the present invention, is integrally attached to such a circular saw unit 3. That is, a subframe 23 is formed to protrude from the side surface of the movable frame 5 of the circular saw unit 3 so as to extend toward the supply side of the material A, and the ruler plate 24 is supported by the subframe 23.

Specifically, for example, two rods 25 are made to protrude from the rear part of the ruler plate 24, and these rods 25 are attached to the subframe 23.
It is designed to be supported by a bearing 26 in.

Incidentally, the position of the ruler plate 24 itself must be made variable, and its operation is performed by contraction of the shift cylinder 27. Incidentally, since the subframe 23 is sufficiently overhanging the movable frame 5, it is expected that the rigidity at the tip thereof will be insufficient. It is designed to roll on the side support rails 29, and the sub-float 1. - The structure is such that the tip side of the arm 23 is supported. In this embodiment, circular saw units 3 having the same structure as described above are provided oppositely. In this case, one circular saw unit 3 does not necessarily need to be provided with the ruler device 22. Of course, it may be provided on both sides.

The present invention has the specific structure as described above, and takes the following cutting form as an example. For example, it can be used to saw both ears a of material A, which is made by splitting a log into a plate. In this case, after sufficiently retracting the ruler plate 24 in the ruler device 22, set it at a predetermined position on each circular saw blade 18, 19 as shown in FIG. 5(a), and remove both ears a. do it like this. For example, in the case of material A in which one of the ears a has been removed, the ruler plate 24 is attached to the drive shaft 11 as shown in FIG. 5(b).
The circular saw blade 18 on the proximal end side is brought close to the circular saw blade 18, and the other circular saw blades 18, 19 are set at predetermined positions, and then sawing is performed. In this case, the ruler plate 24 feeds the material A while guiding its position along the end surface where the edge portion a of the material A has been cut off. At this time, in reality, if you look at the surface that touches the ruler, it is not necessarily finished smooth enough to be used as a final product as it is, so use the circular saw blade 18 of the base example to scrape off that part. I try to grind it out slightly. In this way, when a large number of pieces of material A with ears a on one side are processed, the relative position of the ruler plate 24 and the circular saw blade 18 on the most proximal end side is determined even if the sawing dimensions are different. Since it is always set in a constant state, the cutting size can be changed extremely easily. Incidentally, conventionally in such a case, the ruler plate 24 and the circular saw blade 1 in the base example
Since there was no organic relationship with 8, it was necessary to position it here, which was one of the factors that hindered the improvement of work efficiency.

(Effects of the Invention) The present invention has the configuration as described above, and in the multi-image circular saw machine 1, the circular saw blade 18 at the most proximal end of the drive shaft 11 and the ruler plate 24 are organically arranged. Since they are in a connected state, lumber work can be carried out more efficiently.

In addition, as defined in claim 2, when the circular saw Iwa Uniso I-3 is set facing each other, it is always possible to set sawing dimensions or cut the material A with the center of gravity of the device as a reference during lumber work.
It is possible to determine the supply position, etc., and in this respect, it provides excellent workability, and it also makes it easier to control etc. when automating.

[Brief Description of the Drawings] Fig. 1 is a perspective view showing a multi-image circular saw according to the present invention, Fig. 2 is a longitudinal sectional front view of the same, Fig. 3 is a plan view of the same, and Fig. 4 is a longitudinal sectional view showing a ruler device. The side view and FIG. 5 are front views schematically showing the state of sawing work. 1; Multi-image circular saw machine 2; Base frame 3; Circular saw machine Uniso i-4; Material feeding device 5; Movable frame 6; Slide guide 7; Screw nut 8; Screw shaft 10; Bearing 11; Drive shaft 12; Pulley 14; output pulley 15; belt 16; outer shaft 17; inner shaft 18, 19; circular saw blade 20; shifter device 22; ruler device 23; subframe 24; ruler plate 25; loft 26; bearing 27; shift cylinder 28; Roller 29; Support rail A; Material a; Ledge Ml? Shift motor M2i drive motor

Claims (2)

[Claims] (1) In a sawmilling machine equipped with a plurality of circular saw blades that share a common axis and rotate integrally and move separately from each other in the thrust direction, all of the circular saw blades are relative to the base frame of the machine. A multi-grinding circular saw machine, characterized in that it is provided with a ruler plate which is movably mounted and which operates together with a circular saw blade provided at the most proximal end of a drive shaft of the circular saw blade. (2) The multi-grinding circular saw machine according to claim 1, wherein a plurality of circular saw blades having the same structure are attached oppositely to the circular saw blade in the device.