JPS61152318A - Driving wheel in band sawing machine - Google Patents

Abstract

PURPOSE:To certainly transmit a turning moment by discharging the water carried onto the contact part between a driving wheel and a steel endless belt having a number of diamond tips attached, by forming drain grooves onto the tire surface of the driving wheel. CONSTITUTION:Drain grooves 6 are formed onto the tire surface of a driving wheel 2. Though the width, depth, and shape of the drain groove 6 are not specifically restricted, the formation density is determined within a range for developing the frictional resistance sufficient for the cutting work. Since the water supplied onto an endless belt is discharged through the drain grooves 6, the generation of hydroplaning phenomenon is prevented, and the turning moment of the driving wheel 2 can be certainly transmitted to the endless belt.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a band saw using a diamond-tipped saw, and is particularly characterized in that water removal grooves are formed on the tire surface of the drive wheel.

(Prior art) A band saw is a saw machine that uses a diamond tip saw made of a large number of diamond tips attached to an endless band made of steel, and is equipped with a single rotation wheel and a drive wheel, on which the diamond tip saw is suspended. However, with conventional band saw machines, water gets between the endless band of the diamond tip saw and the drive wheel during operation, resulting in a hydroplaning phenomenon that causes the diamond tip saw to become unable to rotate. Ta. This is because band saws use the cutting power of diamond tips to cut hard materials such as steel and stone, so cooling water must be poured into the processing area of the material to be cut. A portion of the diamond chips are due to the rotational force of the diamond chips, and a portion of the diamond chips adhere to the endless band and are inevitably carried between the contact portion of the endless band and the drive wheel.

(Means for Solving the Problems) In view of the fact that cooling water is essential for a bandsaw machine, the present invention accepts the phenomenon that a portion of this water is carried between the contact area between the endless band and the drive wheel. Then, a water removal groove is formed on the tire surface of the drive wheel, and the water carried between the two is released into the water removal groove to prevent water from intervening on the contact surface with the endless belt of the drive wheel. This eliminates the occurrence of hydroplaning.

The present invention will be explained in detail below based on the illustrated embodiment.6 In the figures, reference numeral 1 is a driven wheel, 2 is a driving wheel, and 3 is a diamond-tipped saw. These are similar to those of ordinary band saws of this type except that water removal grooves are formed on the tire surface of the drive wheel 2, and the diamond chip saw 3 has a large number of diamond chips on the front edge of the endless steel band 4. Although not shown, a drive motor is connected to the drive wheel 2. Also, although not shown, the band saw machine is equipped with a material transport wheel, and the diamond tip saw 3
The material to be cut A is fed into the machine, and cooling water is poured onto the processed portion of the material to be cut A. Reference numeral 6 is a water removal groove. This device removes the cooling water carried between the contact portion between the drive wheel 2 and the steel endless band 4 of the diamond tip saw 3 from the contact surface of the two, and makes the water available to completely contact the two. The passage is formed on the tire surface of the drive wheel 2.

There are no particular limitations on the width, depth, shape, etc. of the water removal groove 6. As the width and depth of this material increases and the density of its formation increases, the water removal effect increases and a decrease in frictional resistance due to cooling water is prevented.On the other hand, as the area occupied by this material on the tire surface increases, Since the effective contact surface of the drive wheel 2 becomes smaller accordingly, the frictional resistance with the endless band decreases, so it is important to set it within a range that provides sufficient frictional resistance for cutting work.

(Function) When the cutting operation is performed, cooling water is brought into the contact area between the driving wheel 2 and the steel endless belt 4, but this water is removed by being compressed by the driving wheel 2 and the steel endless belt 4. It will be pushed into the water groove 6. Therefore, the cooling water is
Since it is not taken in between the steel endless belt 4 and the steel endless belt 4, and is removed from between the two, the occurrence of hydroplaning phenomenon is eliminated, and the rotational force of the drive wheel 2 is reliably transmitted to the steel endless belt 4. , and thus the diamond tip saw 3 is rotated.

(Effects of the Invention) As detailed above, the present invention forms water removal grooves 6 on the tire surface of the drive wheel 2, thereby ensuring that cooling water carried between the drive wheel 2 and the steel endless band 4 is removed. Therefore, the cutting work of the material to be cut A can be carried out without any trouble.゛

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing one embodiment of the present invention, and FIG.
The figure is a perspective view showing the state in which the same as above is used. FIG. 3 is a longitudinal sectional view showing the main parts. 1; Driven wheel 2; Driving wheel 3; Diamond chip saw 4; Steel endless band 6; Water removal groove 5; Diamond chip patent application" Agent Masatsuki Ibo Figure 1 Figure 3 Figure No. 0

Claims (1)

[Claims] In a band saw machine that is equipped with a driven wheel and a driving wheel and has a diamond-tipped saw suspended from both shafts, the cooling water that is brought into the tire surface of the driving wheel to the contact area between the driving wheel and the endless band is removed. A drive wheel characterized by forming a water removal groove for water removal.