JPH031205Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a sawing device used for sawing various materials for construction, woodworking, etc. Specifically, the present invention relates to a sawing device that increases the buckling strength of a band saw by lowering the load position during sawing.

(Prior Art) A sawing device conventionally used for sawing various materials for construction, woodworking, etc., has upper and lower saw wheels 27 on the top and bottom of a machine body 26, as shown in Figure 3 of the drawing.
28, a band saw 29 is suspended between these saw wheels 27 and 28, and the lower surface of the installation part 30 of the machine body 26 is positioned above the horizontal center line s of the lower saw wheel 28. On the other hand, the lumber transport wheel 31 is arranged such that the upper surface of the sliding table 33 of the lumber support case 32 is located above the upper peripheral surface of the lower saw wheel 28.

(Problems to be Solved by the Invention) As shown in FIG. lower saw wheel 28 in
Since it is located higher than the upper peripheral surface, when sawing material with the band saw 29, the load position a applied to the band saw 29 is higher than the radius r of the lower saw wheel 28, and the required thickness of the sawn material is cut onto this point. In this case, the distance between the axes of the upper and lower saw wheels 27 and 28 becomes longer, which reduces the buckling strength of the band saw 30, making it extremely difficult to saw with a thin saw of 20 gauge or less.

The present invention was made in order to solve the above-mentioned conventional problems.The body of the band saw machine was improved so that the load position applied to the band saw was lowered, and the buckling strength of the band saw was increased. The purpose of the present invention is to provide a sawing device that can easily saw wood using the following thin saw.

(Means for Solving the Problems) The lumber sawing device according to the present invention supports upper and lower saw wheels 2 and 3 above and below the machine body 1, as shown in the embodiment shown in FIGS. 1 and 2. A band saw machine A has a band saw 4 suspended between these saw wheels 2 and 3, and the lower surface of the installation part 8 of the machine body 1 is set lower than the conventional one with respect to the lower saw wheel 3, and this band saw machine. A wood support case 2 is placed below the upper peripheral surface of the lower saw wheel 3 at A.
The material transport vehicle 1 with the top surface of the slide table 23 of No. 4 positioned
7.

(Function) In the device of the present invention configured as described above, as shown in FIG. That is, since it is set near the horizontal center of the lower saw wheel 3 or lower than this,
It is possible to arrange the material transport wheel 17 so that the upper surface of the sliding base 23 of the wood support case 24 is located below the upper circumferential surface of the lower saw wheel 3, as shown in the figure.
For this reason, when sawing material, the height of the load position a applied to the bandsaw 4 is at a low place within the radius r of the lower saw wheel 3, and even if the required sawn material thickness is obtained on top of this, the upper and lower saw wheels 2,
Since the distance between the axes of 3 is significantly reduced compared to the conventional sawing device described above, the buckling strength of the band saw 4 is increased, making it easy to saw wood even when using a thin saw of 20 gauge or less. This will enable you to do this.

(Example) An example of implementation of an apparatus related to the present invention will be described below based on the drawings.

In Figures 1 and 2 of the drawings, 1 is the body of a band saw machine A, and above and below it are an upper saw wheel 2 and a lower saw wheel 3.
A band saw 4 is suspended between these saw wheels 2 and 3, and the band saw 4 is tensioned by a tensioning means comprising a lever 5, a knife edge 6, and a push-up rod 7. As shown in FIG. 1, the installation part 8 is provided so that its lower surface is at a lower position relative to the lower saw wheel 3 than before, that is, at a position near or lower than the horizontal center s of the lower saw wheel 3. The machine body 1 is installed on the foundation 9 using the installation part 8, and bearing mounting parts 10 and 11 are provided at the front and rear of the lower part of the machine body 1, respectively, to support the shaft 12 of the lower saw wheel 3. Bearings 13 and 14 are attached to the housing 15 of the lower saw wheel 3 in the machine body 1, and the part where the material contacts is cut out as shown in FIG. A cover 16 is attached.

Reference numeral 17 denotes a material transport vehicle, and a plurality of sets of wheels 18 and 19 are supported on a shaft 20 at the bottom thereof, and these wheels 18 and 19 are mounted on a rail 21 laid parallel to the extension line of the sawing path of the band saw 4 described above.
22 and rotated forward and backward by a known forward/backward means (not shown) to advance and retreat. These slide tables 2
A lumber support case 24 is separately supported on each of the lumber support cases 24 on each of the lumber support cases 24, and these lumber support cases 24 are moved forward and backward by known stepping and advancing/retreating means (both figures omitted). Sliding table 2 in
The upper surface of the lower saw wheel 3 is positioned lower than the upper peripheral surface of the lower saw wheel 3 due to the improvement of the body 1 of the band saw machine A as described above.
When sawing material by supporting the bandsaw 5, the load position a applied to the band saw 4 is at a low place within the radius r of the lower saw wheel 3, and the upper and lower saw wheels 2 , 3 can be made smaller than before.

The lumber sawing device shown in the embodiment supplies the material 25 onto the sliding table 23 and supports it on the lumber support casing 24, moves the material 25 toward the bandsaw 4 as desired, and then moves the material 25 to the material transport vehicle 17. , the material 25 is transferred to the band saw 4.
At this time, the load position a applied to the bandsaw 4 is at a low place within the radius r of the lower saw wheel 3, as shown in Figure 1 of the drawing, and the required sawn material is placed on top of it. The distance between the axes of the upper and lower saw wheels 2 and 3 is much smaller than that of conventional sawing machines.

Therefore, with this device, sawn material can be produced even with a thin saw of 20 gauge or less, so using a thin saw not only reduces the amount of material lost and improves product yield. When using a thick saw, the sawing speed can be increased to improve sawing efficiency.

(Effects of the invention) The sawing device of the invention increases the buckling strength of the band saw by modifying the body of the band saw machine and lowering the load position of the band saw, allowing the use of thin saws that could not be used in the past. This makes it possible to reduce material waste and greatly improve product yield.

If you use the same thick saw as before, you can increase sawing speed and greatly improve sawing efficiency.

Even when using a thin saw, the saw passes through easily, reducing power consumption and allowing highly accurate sawn wood.

It has the following unique effects.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a sawing device according to the present invention, FIG. 2 is a side view of the same band saw with the upper part omitted, and FIG. 3 is a front view showing a conventional sawing device. . In the figure, A is a band saw machine, 1 is the machine body, 2 and 3 are upper and lower saw wheels, 4 is a band saw, 8 is an installation part, 17
23 is a sliding table, and 24 is a wood support case.

Claims (1)

[Scope of utility model registration request] A band saw machine in which upper and lower saw wheels are supported on the upper and lower sides of the machine body, the band saw is suspended from these saw wheels, and the lower surface of the installation part of the machine body is set lower than before with respect to the lower saw wheel; A lumber sawing device characterized in that the lumber sawing device is equipped with a lumber transport wheel in which the upper surface of the sliding table of the lumber support case is positioned below the upper peripheral surface of the lower saw wheel in this band saw machine.