KR101072969B1 - Band sawing machine having change of speed control function - Google Patents

Abstract

Band saw machine having a shift control function according to a preferred embodiment of the present invention, the driven wheel installed on the main body; A driving wheel installed inside the main body to drive a band saw mounted on the driven wheel; A driving unit for transmitting power to the driving wheel to enable rotation; And a frequency control unit for adjusting a rotational speed of the driving wheel by applying a frequency change to the driving unit.

According to the band saw machine having a shift control function according to the present invention, the gearbox is directly connected to the drive wheel connected to the band saw, and the speed control range is increased by adjusting the rotation speed of the motor by frequency control in the shift control unit. The configuration can be simplified.

In addition, since the drive wheel connected to the band saw is directly connected to the reducer and the motor, noise is drastically reduced, and since the number of devices used is small, the failure rate can be reduced and the repair work can be easily performed.

Band saw, drive wheel, driven wheel, drive part, frequency control part, shift control

Description

BAND SAWING MACHINE HAVING CHANGE OF SPEED CONTROL FUNCTION}

The present invention relates to a band saw machine, and more particularly, to connect a speed reducer and a motor in a direct connection type to a drive wheel connected to the band saw, and to increase the speed adjusting range by adjusting the rotation speed of the motor by frequency control in the speed adjusting unit. The present invention relates to a band saw machine having a shift control function that simplifies configuration and reduces noise.

In general, a band saw machine installs a band saw between a driving wheel and a driven wheel, and drives the driving wheel through a power transmission means such as a motor, a gear, and a chain, thereby cutting workpieces such as metals such as aluminum, copper, and steel special steel. It is a cutting device.

Looking at the configuration of a conventional band saw machine, a motor for generating power, a speed reducer for reducing the rotational speed of the driving force transmitted through the motor, a drive wheel for transmitting the rotational force of the reducer, and one end is wound around this drive wheel, The other end consists of a band saw wound around the driven wheel to convey the workpiece.

Looking at the action of such a band saw machine, the motor rotates while the power is supplied, the rotation speed is reduced by the belt, chain connected to the pulley or sprocket of the reducer, and the reduced rotational force is transmitted to the driving wheel, and wound on the driving wheel. By rotating the band saw, the driven wheel is rotated to cut a workpiece such as metal placed on a workbench.

By the way, the conventional band saw machine is a method of using a reduction gear connected to the belt, so the structure is complicated, and mechanical shift adjustment is made, but the rotation speed of the drive wheel should be adjusted according to the strength of the workpiece placed on the workbench. The speed control range of the driving wheel is limited and fine adjustment is impossible.

In addition, since the belt saw machine is a belt driving method, there are many connection configurations, so the noise is high and many devices are used, resulting in high failure rate and troublesome repair work.

Thus, there is a need for improvement.

The present invention connects the reducer and the motor in a direct connection type to the drive wheel connected to the band saw, and adjusts the rotational speed of the motor by the frequency control of the frequency control unit to increase the speed adjustment range according to the strength of the workpiece placed on the workbench and fine adjustment is It is an object to improve workability as much as possible.

In addition, since the driving wheel connected with the band saw is directly connected to the reducer and the motor, the noise is drastically reduced, and the number of devices used is so small that the configuration is simplified, the failure rate is reduced, and the repair work is simply performed.

In order to achieve the above object, a band saw machine having a shift control function according to an embodiment of the present invention includes a driven wheel installed at a main body; A driving wheel installed inside the main body to drive a band saw mounted on the driven wheel; A driving unit which transmits power to the driving wheel to enable rotation; And a frequency control unit for adjusting the rotational speed of the driving wheel by applying a frequency change to the driving unit.

In addition, the drive unit is connected to the drive wheel in direct type and reducer for reducing the power transmitted; It is characterized in that it comprises a motor connected to the reducer to generate a driving force to the power supply of the power supply.

In addition, the reducer is characterized in that attached to the diaphragm provided in the vertical direction inside the lower body.

In addition, the side of the diaphragm, characterized in that it further comprises a transformer for changing the voltage flowing into the motor through the power supply to a rated voltage.

In addition, the frequency control unit, according to the input signal of the operation unit provided in the main body is a high speed of the rotational speed of the motor, when the frequency is low to reduce the rotational speed of the motor to adjust the rotational speed of the drive wheel It is characterized by.

In addition, the frequency control unit, characterized in that provided on one side of the motor.

In addition, the driven wheel, characterized in that it further comprises a gap adjusting portion for adjusting the tension of the band saw, and detachable to the band saw.

In addition, the gap adjusting portion, the moving member having a guide portion connected to the bell stone wheel to move up and down along the guide rail; A female screw portion connected to the guide portion and having a female screw formed therein; And a handle installed on the main body to rotate the screw shaft coupled to the female screw part to move the moving member up and down.

According to another embodiment of the present invention, a band saw machine having a shift control function includes: a driving wheel installed inside a main body to drive a band saw mounted on a driven wheel; A speed reducer connected to the driving wheel in a direct type to reduce power transmitted; A driving unit having a motor connected to the speed reducer to generate a driving force with power of a power supply unit; A frequency control unit controlling a rotation speed of the driving wheel by applying a frequency change to the driving unit; And a moving member connected to the rock stone wheel to move the driven wheel up and down. A female screw portion formed on the moving member; Rotation of the screw shaft coupled to the female screw portion characterized in that it comprises a gap adjusting portion for adjusting the detachment and tension of the band saw including a handle installed on the main body to operate the moving member up and down.

As described above, when using a band saw machine having a shift control function according to the present invention, the gear reducer and the motor is directly connected to the drive wheel connected to the band saw, and the speed control unit adjusts the rotational speed of the motor by frequency control. This increases the shifting range and simplifies configuration.

In addition, since the drive wheel connected to the band saw is directly connected to the reducer and the motor, noise is drastically reduced, and since the number of devices used is small, the failure rate can be reduced and the repair work can be easily performed.

Hereinafter, a cylindrical molding apparatus according to an embodiment of the present invention with reference to the accompanying drawings.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view of a band saw machine having a shift adjustment function according to an embodiment of the present invention, Figure 2 is a front view of a band saw machine having a shift adjustment function according to an embodiment of the present invention, of the present invention of Figure 3 FIG. 4 is a right side view of the band saw machine having a shift control function according to an embodiment, and FIG. 4 is a detailed view of the lower structure of FIG. 3, FIG. 5 is a perspective view of an installation state of a driving unit and a frequency control unit of the present invention, and FIG. 6. 3 is a view showing in detail the upper configuration of Figure 3, Figure 7 is a block diagram showing the configuration for driving and controlling the band saw machine according to the present invention.

1 to 7, the configuration of the band saw machine having a shift control function according to an embodiment of the present invention, the driven wheel 100 installed on the main body 10; A driving wheel 300 installed inside the main body 10 to drive the band saw 350 mounted to the driven wheel 100; A driving unit 500 which transmits power to the driving wheel 300 to enable rotation; And a frequency control unit 600 for adjusting the rotational speed of the driving wheel 300 by applying a frequency change to the driving unit 500.

The main body 10 is divided into an upper configuration in which the driven wheel 100 is installed and a lower configuration in which the driving wheel 300 is installed, and the upper and lower configurations are connected to each other through the left connection part.

The front surface of the main body 10 is provided with an operation unit 20 provided with a plurality of buttons and switches for operating the band saw machine in various functions.

Workbench for performing operations such as cutting the workpiece 40 placed in the intermediate space portion of the main body 10 by exposing the band saw 350 connected between the driven wheel 100 and the driving wheel 300 to the outside. 30 is provided.

The driving unit 500 includes a speed reducer 520 which is connected to the driving wheel 300 in a direct type and reduces the power transmitted; It is connected to the reducer 520 includes a motor 510 for generating a driving force to the power of the power supply 400.

The reducer 520 is preferably attached to the diaphragm 530 which is provided in the upper and lower directions, ie, the vertical direction, in the lower side of the main body 10. When the reducer 520 is attached to the diaphragm 530, it is preferable to use fastening means such as a screw or a bolt.

When the reducer 520 rotates 11 turns, the speed decreases by a plurality of gears mounted therein, such as rotating half a turn, but since the reduction gear 520 is a conventional speed reducer for increasing driving force, detailed description of the internal configuration will be omitted.

As shown in FIGS. 3 and 4, the diaphragm 530 may include a first space portion in which the motor 510 and the reducer 520 are installed, and a second space portion in which the driving wheel 300 is installed. It serves to separate the internal space of the lower structure of 10 into two areas.

As shown in FIG. 5, the side of the diaphragm 530 may further include a transformer 450 for changing the voltage flowing into the motor 510 through the power supply unit 400 into a rated voltage. Of course, the transformer 450 is not limited to being installed on the diaphragm 530, but may be installed at any position.

The frequency controller 600 rotates the motor 510 when the frequency is high according to the input signal of the operation unit 20 provided in the main body 10, and when the frequency is low, rotates the motor 501 to be slow. The rotation speed of the wheel 300 is adjusted.

For example, when operating a metal material, the material of low strength, such as aluminum, copper should be a fast rotation speed of the band saw 350, but the cutting is made well, the material of high strength, such as steel, special steel, band saw 350 The speed of rotation should be low, but cutting is well done.

Therefore, when the control unit 20 mounted on the main body 10 is provided with a predetermined operating unit required according to the strength of the metal or other material in advance, the frequency control unit 600 generates a frequency accordingly to rotate the motor 510. Adjust the speed. The selection operation part can select and use any one of a switch part, a button, and a lever.

That is, in the case of a material having low strength such as aluminum or copper, when the selective operation unit is operated accordingly, a high frequency is generated by the frequency control unit 600 via the operation unit 20 that receives the operation signal to generate the motor 510 and the reducer ( 520) to increase the rotational speed of the driving wheel 300 and the band saw 350, and in the case of a material of high strength such as steel or special steel, when the selected operation unit is operated according to the operation unit 20 which receives the operation signal Since the frequency control unit 600 generates a low frequency to lower the rotational speed of the motor 510, the reducer 520, the driving wheel 300, and the band saw 350, it has a significantly improved shift control range compared to the prior art. It is possible to fine tune for.

By improving the conventional analog method to digital method, it is possible to reduce equipment manufacturing period and manufacturing cost.

Meanwhile, the frequency controller 600 further includes an intensity detector configured to detect the strength of the material cut by the band saw 350 without passing through the manipulation unit 20, and based on the signal detected by the intensity detector 600. By generating a frequency control signal according to it can be configured to automatically adjust the rotational speed of the motor 510, reducer 520, drive wheel 300 and the band saw 350.

In addition, the frequency control unit 600 is preferably mounted on one side of the motor 510 by fastening means such as a bolt or a screw. Of course, the installation location is not limited to this.

Follower wheel 100, it is preferable to further provide a gap adjusting portion 200 for adjusting the tension of the band saw 350, and detachable to the band saw 350.

The gap adjusting unit 200 may include a moving member 230 connected to the bell stone wheel 100 and having a guide part 250 to move up and down along the guide rail 260; A female screw part 240 connected to the guide part 250 and having a female screw formed therein; It further includes a handle 210 installed in the main body 10 to move the moving member 230 up and down by rotating the screw shaft 220 coupled to the female screw portion 240.

The guide part 250 is preferably configured to be spread in left and right symmetrical directions with respect to the female screw part 240 of the moving member 230, and guides the guide part 250 to the rod-type guide rail 260. It is preferable that it is a guide slot of a circular cross section.

On the other hand, one side of the main body 10 in which the bell stone wheel 300 is installed may be further provided with a guide adjustment mechanism 700 having a post handle for preventing the strip saw 350 from peeling off.

The guide adjusting mechanism 700 rotates a pair of bevel gears according to the rotation of the handle to prevent the band saw 350 from moving out of the trajectory so that the band saw 350 is peeled off from the longitudinal wheel 300 and the driving wheel 100. It is a configuration to prevent losing.

Or less, on the basis of the accompanying drawings to look at the action of the band saw machine having a shift control function according to an embodiment of the present invention.

As shown in Figure 2 to 6, looks at the state of use of the band saw machine according to the present invention. When the operation unit 20 mounted on the main body 10 is operated to input an operation signal, the power supply unit 400 transmits power to rotate the motor 510, and the rotational force of the motor 510 is applied to the reducer 520. It is transmitted to reduce the rotation and increase the driving force to rotate the drive wheel 300 with a reduced drive force.

As the driving wheel 30 is rotated, the band saw 350 wound thereon is connected to the driven wheel 100 connected to the upper side of the main body 10 to rotate, and the workpiece 40 such as a metal material placed on the work table 30 is rotated. The cutting process is carried out as necessary.

At this time, when operating the metal material, the material of low strength, such as aluminum, copper should be a high rotational speed of the band saw 350, but the cutting is made well, the material of high strength, such as steel, special steel is of the band saw 350 The speed of rotation should be low, but the cutting works well.

Therefore, when the control unit 20 mounted on the main body 10 is provided with a predetermined operating unit required according to the strength of the metal or other material in advance, the frequency control unit 600 generates a frequency accordingly to rotate the motor 510. You can adjust the speed.

For example, in the case of a material having a low strength such as aluminum or copper, when the selective operation unit is operated accordingly, a high frequency is generated by the frequency control unit 600 via the operation unit 20 that receives the operation signal, thereby generating a motor 510, The speed of rotation of the band saw 350 is increased through the speed reducer 520 and the driving wheel 300 so that the saw blade of the band saw 350 cuts aluminum and copper.

In addition, in the case of a material having high strength such as steel or special steel, when the selected operating part is operated accordingly, a low frequency is generated in the frequency control part 600 via the operation part 20 which receives the operation signal, thereby generating the motor 510 and the reducer ( 520, and lowers the rotational speed of the band saw 350 through the driving wheel 300, the saw blade of the band saw 350 is cut steel, special steel.

Therefore, it has a significantly improved speed adjusting range compared to the conventional, it is possible to fine-tune the shift.

Meanwhile, the frequency controller 600 further includes an intensity detector configured to detect the strength of the material that is cut by the band saw 350 without passing through the manipulation unit 20, and thus, based on the signal detected by the strength detector, the frequency controller 600. By generating a frequency control signal according to it can be configured to adjust the rotational speed of the motor 510, the reducer 520, the drive wheel 300 and the band saw 350.

During this operation, if you want to adjust the tension of the band saw 350 or replace the band saw 350, by rotating the handle 210 mounted on the main body 10, the screw shaft is installed rotatably on the handle 210 220 is rotated, the female screw portion 240 screwed to the screw shaft 220 is moved to the lower side.

When the female screw part 240 moves downward, the moving member 230 connected to the female screw part 240 moves downward while being guided by the guide rail 260 coupled to the guide part 250. The bell stone wheel 300 coupled to 230 is also moved downward.

Accordingly, since the band saw 350 wound between the driven wheel 300 and the driven wheel 100 is in a detachable state, the belt saw 350 is detached and then repaired or a new band saw 350 is mounted, and the handle ( Since the moving member 220 is moved upward by rotating 210, it is used in a state in which the tension of the band saw 350 is firmly maintained.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a perspective view of a band saw machine having a shift control function according to an embodiment of the present invention.

Figure 2 is a front view of the band saw machine having a shift control function according to an embodiment of the present invention.

Right side view of the band saw machine having a shift control function according to an embodiment of the present invention of Figure 3;

4 is a view showing in detail the lower configuration of FIG.

5 is a perspective view of an installation state of the driving unit and the frequency control unit of the present invention.

6 is a view showing in detail the upper configuration of FIG.

Figure 7 is a block diagram showing a configuration for driving and controlling the band saw machine according to the present invention.

Explanation of symbols on the main parts of the drawings

10: main body 100: driven wheel

200: gap adjustment section 210: handle

230: moving member 250: guide portion

260: guide rail 300: driving wheel

350: band saw 400: power supply

500: driving unit 510: motor

520: reducer 600: frequency control unit

Claims (9)

Driven wheels installed in the main body; A driving wheel installed inside the main body to drive a band saw mounted on the driven wheel; A driving unit which transmits power to the driving wheel to enable rotation; A frequency control unit controlling a rotation speed of the driving wheel by applying a frequency change to the driving unit; And a gap adjusting part for adjusting the tension of the band saw on the driven wheel and detaching the band saw. The drive unit is connected to the drive wheel in direct type and reducer for reducing the power transmitted; It includes a motor connected to the reducer to generate a driving force to the power supply of the power supply, The frequency control unit adjusts the rotational speed of the driving wheel to make the rotational speed of the motor faster if the frequency is higher according to the input signal of the operation unit provided in the main body, and if the frequency is lower, The frequency control unit may further include an intensity detection unit for detecting the strength of the material cut by the band saw without passing through the operation unit, and generates a frequency control signal according to the signal detected by the intensity detection unit, thereby generating a motor, Band saw machine having a shift control function, characterized in that configured to automatically adjust the rotational speed of the reducer, the drive wheel and the band saw. delete The method of claim 1, The reducer, Band saw machine having a shift adjustment function, characterized in that attached to the diaphragm installed in the vertical direction inside the lower body. The method of claim 3, wherein The side of the diaphragm, the band saw machine having a shift control function, characterized in that it further comprises a transformer for changing the voltage flowing into the motor through the power supply to a rated voltage. delete The method of claim 1, The frequency control unit, Band saw machine having a shift control function, characterized in that provided on one side of the motor. delete The method of claim 1, The gap adjusting unit, A moving member connected to the driven wheel and having a guide part configured to move up and down along a guide rail; A female screw portion connected to the guide portion and having a female screw formed therein; And a handle installed on the main body to move the moving member up and down by rotating the screw shaft coupled to the female screw part. delete

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