CN101668607B - Mobile manual cutting machine having movable cutter - Google Patents

Abstract

Provided is a mobile manual cutting machine in which a rotatable circular cutter is moved toward a work piece manually, to cut the work piece straightly or obliquely. The cutting machine includes : a left and right movable unit which can be slid selectively left and right; a motor installation body which is moved and rotated left and right; and an elastic body which makes a motor and a cutter rotated in the direction seceding from a work piece, if external force is removed from a turning handle, to thereby enable a worker to cut a cutting portion of the work piece alone relatively accurately and very easily.

Description

Mobile manual cutting machine with movable blade

technical field

The present invention relates to a mobile manual cutting machine in which, among various types of cutting machines for cutting objects to be cut, a rotating circular blade can be manually moved toward the object to be cut straight or obliquely. A mobile manual cutting machine that cuts objects to be cut accurately. the

Background technique

Various types of cutters have been disclosed. Among them, a mobile manual cutter widely known as a cutting machine is a system in which a rotating circular blade is manually moved to an object to be cut to cut the object to be cut. the

These manual cutters cannot precisely cut the item to be cut. However, since the manual cutting machine has the advantages of easy movement and easy cutting operation, it is currently widely used. the

These mobile manual cutters include a table for placing a part of an object to be cut and a jig for fixing the object to be cut placed on the table. Therefore, in a state where the object to be cut is fixed with the jig, the blade rotated by the motor is moved toward and rotated toward the object to be cut, thereby performing a cutting operation. the

Also, if the external force applied to the rotary handle is removed after the cutting operation is completed, the blade rotates in the opposite direction due to the presence of the spring, so that other objects to be cut can be cut. the

However, in existing cutting machines, the blade cannot move in the left and right directions. Therefore, it is difficult to cut along the marked positions to be avoided. the

That is, use a marker or a piece of chalk to mark the part that will be cut. In order to cut the marked portion of the object to be cut more accurately, the marked portion should be more correctly located on the rotation path of the blade, ie, the path of the blade rotation. the

However, when a mobile manual cutting machine is used for the cutting operation, in most cases, one worker performs the cutting operation alone. Also, since most things to cut are long and heavy, it can be difficult to get the marker-marked section to be more correctly on the rotational path of the blade. the

On the other hand, the clamps of the existing mobile manual cutting machine can be rotated left and right. Therefore, if the object to be cut is fixed obliquely, the object to be cut can be cut obliquely. the

However, since a worker operates alone, it is difficult to tilt and fix a long object to be cut at a desired angle. Therefore, it is difficult to cut the object obliquely at a prescribed angle. And, when the worker performs the oblique cutting of the object to be cut, the worker often runs into the problem of being limited by space. the

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a mobile manual cutting machine with a blade that moves left and right, so that the cutting operator can independently cut long and heavy objects more accurately. the

Another object of the present invention is to provide a mobile manual cutting machine in which the blade moves left and right and rotates left and right, so that the cutting operator can tilt and fix long and heavy objects to be cut, and easily Cut the cut by yourself. the

In order to achieve the above object of the present invention, according to one aspect of the present invention, a mobile manual cutting machine with a movable blade is provided. the

According to the mobile manual cutting machine of the present invention, in the state where the object to be cut is fixed, the motor and the blade can move left and right along the body of the object to be cut, so that the cutting operator can align the object to be cut more correctly. The cutting position of the object to be cut and the blade rotation path. the

Also, since the motor and the blade can move left and right, if the cutting operation worker desires to cut the object obliquely, the motor and the blade are inclined with respect to the object, thereby allowing the worker to easily perform oblique cutting operation of the object. the

The mobile manual cutting machine according to the present invention includes: a main body having a table for placing a part of a long object to be cut and placed on the ground. the

In addition, the mobile manual cutting machine according to the present invention includes: a clamp arranged in front of the above-mentioned main body, so as to press and fix the object to be cut placed on the workbench. the

In addition, the mobile manual cutting machine according to the present invention includes: a left and right movable unit, which is arranged behind the above-mentioned main body, and can selectively slide left and right along the body. the

In addition, the manual cutting machine while moving according to the present invention includes: a circular blade cutting an object to be cut; and a motor rotating the circular blade so that the blade cuts the object to be cut. the

In addition, the mobile manual cutting machine according to the present invention includes: a motor mounting body mounted on the above-mentioned left and right movable units so as to move left and right together with the left and right movable elements, and provided with a motor, the above-mentioned motor mounting body can be rotated, Thereby the motor and the blade rotate to the object to be cut fixed on the workbench. the

In addition, the mobile manual cutting machine according to the present invention includes: rotating the handle to rotate the above-mentioned motor installation body, so that the above-mentioned motor and the blade rotate toward the object to be cut fixed on the workbench. the

In addition, the mobile manual cutter according to the present invention includes: an elastic body that makes the motor and the blade rotate if the external force is removed from the rotation handle in the case that the motor and the blade have rotated toward the object to be cut by applying an external force to the rotation handle. Rotate away from the object to be cut. the

Description of drawings

The above-mentioned and other purposes of the present invention will become clear by the following detailed description of preferred embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic oblique view showing a movable manual cutting machine with a screw shaft and a guide rod according to an embodiment of the present invention;

Fig. 2 is a schematic oblique view showing a movable manual cutter without a screw shaft and a guide rod according to another exemplary embodiment of the present invention;

3A is a schematic sectional view for explaining a structure for controlling the movement of the left and right movable units and a structure for controlling the rotation of the motor mounting body, and showing a state where the left and right movable units are movable and the motor mounting body is rotatable;

3B is a schematic sectional view for explaining a structure for controlling the movement of the left and right movable units and a structure for controlling the rotation of the motor mounting body, and showing a state where the left and right movable units are immovable and the motor mounting body is non-rotatable;

Figure 4A is a schematic diagram for explaining the movement of the left and right movable units, wherein the left and right movable units move to the right;

Figure 4B is a schematic diagram for explaining the movement of the left and right movable units, wherein the left and right movable units move to the left;

5A is a schematic diagram for explaining the rotation of the motor-mounted body on which the motor and the blade have been installed, wherein the motor-mounted body does not rotate;

Figure 5B is a schematic diagram for explaining the rotation of the motor mounting body on which the motor and the blade have been installed, wherein the motor mounting body rotates;

Figure 6A is a schematic plan view for explaining the structure of controlling the rotation of the motor installation body through the guide groove and the connecting nut;

6B is a schematic cross-sectional view for explaining the structure of controlling the rotation of the motor mounting body through the guide groove and the coupling nut. the

Detailed ways

The above and/or other objects and/advantages of the present invention will become more apparent from the following description. the

However, since the accompanying drawings are only examples for specifically illustrating the technical ideas and concepts of the present invention, those skilled in the art should understand that the technical ideas and concepts of the present invention are not limited to the accompanying drawings. the

The invention provides a mobile manual cutting machine with movable blades. the

The mobile manual cutter according to the present invention is the same as the prior art, comprising: a main body 10 having a workbench 11 for placing a part of a long object to be cut and placed on the ground. the

In addition, the mobile manual cutting machine according to the present invention includes: a clamp 20 , which is arranged in front of the machine body 10 , and presses and fixes the object to be cut placed on the workbench 11 . the

In addition, the mobile manual cutter according to the present invention includes: a circular blade 30 for cutting an object to be cut and a motor that rotates the blade 30 so that the blade 30 cuts the object to be cut. the

In addition, the mobile manual cutting machine according to the present invention includes: a motor installation body 50 provided with a motor 40, the motor installation body 50 can rotate, so that the motor 40 and the blade 30 are arranged to rotate to the object to be cut fixed on the workbench 11 . the

In addition, the mobile manual cutting machine according to the present invention includes: rotating the handle 60 to rotate the motor installation body 50 so that the motor 40 and the blade 30 rotate toward the object to be cut fixed on the workbench 11 . the

In addition, the mobile manual cutting machine according to the present invention includes: an elastic body (not shown), when an external force is applied to the rotary handle 60 so that the motor 40 and the blade 30 rotate in the direction of the object to be cut, if the external force is removed, the The elastic body can make the motor 40 and the blade 30 rotate in a direction away from the object to be cut, that is, return to the original position. the

Here, the object of the present invention is to enable the worker to cut the long and heavy objects to be cut more accurately by himself. the

The reason why long or long and heavy objects to be cut cannot be cut more accurately with the existing mobile manual cutting machine is that it is difficult for a worker to move these objects to be cut more accurately. the

For these reasons, the present invention allows the worker to move the blade 30 of the mobile hand cutter to the left and right. (Refer to Figure 4A and Figure 4B)

To this end, the mobile manual cutter according to the present invention includes a left and right movable unit 70 located at the rear of the main body 10 and selectively slid left and right along the main body 10 . the

In addition, the motor mounting body 50 is designed to be mounted on the left and right movable units 70 so as to move to the left and right of the body 10 together with the left and right movable units 70 . the

The blade 30 moves to the left and right of the main body 10 . This means that, from the characteristics of the mobile manual cutting machine, the blade 30 moves left and right along the object to be cut. the

The manner in which the left and right movable units 70 selectively slide as described above can be designed in various forms. the

As shown in Figure 1, since the screw shaft 72 that is rotated by the operation of the handle 71 is connected to the left and right movable units 70, the left and right movable units 70 move left and right by the operation of the handle 71, and are passed through the guide rod 73. guide it to move. In this manner, the left and right movable units 70 may be realized as a slidable structure. the

In addition, a method using a ball screw or a method using an LM (Linear Motion) guide, which has been used in various industrial fields, may be applied to realize the left and right movable unit 70 . the

Here, the method according to the present invention or the ball screw method (not shown) shown in FIG. The ball screw selectively controls the movement of the left and right movable units 70 . the

However, the method using the LM (Linear Motion) guide 74 requires another part that can selectively control the movement of the left and right movable units 70 . the

As shown in Fig. 2, Fig. 3A and Fig. 3B, the left and right movable unit 70 of the mobile manual cutting machine according to the embodiment of the present invention includes a clinging plate 81, a wire 82, and an operating rod 83 to selectively control the left and right movement. The left and right movement of the mobile unit 70. the

The left and right movable units 70 of Fig. 3A and Fig. 3B comprise abutment plate 81, if external force is not applied to abutment plate 81, then because spring 84 abutment plate 81 is separated from object (LM guide rail: 74), thereby not to object (LM guide: 74) pressurizes, and if an external force is applied to the left and right movable units 70, the spring 84 is contracted to press the object (LM guide: 74), thereby adhering to the plate 81 to prevent the left and right movable units 70 from moving . the

Here, the abutment plate 81 is connected to a wire 82 . the

Here, the operating rod 83 applies an external force to the close contact plate 81 or removes the external force from the close contact plate 81 by pulling the wire 82 . the

Therefore, the left and right movement of the left and right movable units 70 can be selectively controlled by the operation of the operating lever 83 . the

The reason why the left and right movement of the left and right movable units 70 should be selectively controlled is that looseness should not occur during the cutting of the object to be cut by the blade 30 . the

Considerable chipping occurs during the cutting of the object by the blade 30 . At this time, it is necessary to prevent these chips from falling on the moving path of the left and right movable units 70 so that the movement of the left and right movable members 70 is not affected by the chips. the

Therefore, when the mobile manual cutting machine according to the embodiment of the present invention is implemented as shown in FIGS. 1 and 2 , it is expected that the moving paths of the left and right movable units 70 should not be exposed. Such a mechanism of not exposing the movement paths of the left and right movable units 70 can be implemented in various forms, such as a folded manner. the

These techniques for not exposing the movement paths of the left and right movable units 70 are applied to various operating machines and the like, and are widely known. Therefore, a detailed description thereof will be omitted. the

At the same time, it is necessary to cut the object to be cut obliquely by a mobile manual cutter. the

As described above, in order to cut the object obliquely in the prior art, it is desirable to tilt the object to be cut in the cutting direction and fix it. Then, operate the rotating handle to make the motor 40 and the blade 30 rotate toward the object to be cut. the

However, this oblique cutting method has the problems that it is difficult to set the angle and it is difficult to move and fix the object to be cut as explained above. Therefore, the mobile manual cutter according to the present invention provides a structure in which the blade 30 is obliquely fixed at a desired angle with respect to the object to be cut. the

That is, in the present invention, when the object to be cut is obliquely cut, the object to be cut is not moved but the blade 30 is moved. Therefore, as shown in FIGS. 5A and 5B , the present invention provides a structure for selectively maintaining the state of inclination of the blade 30 with respect to the object to be cut. the

In detail, the present invention provides a structure in which the motor installation body 50 can selectively rotate left and right around the left and right movable units 70 . the

A structure in which the motor mounting body 50 can selectively rotate left and right around the left and right movable units 70 can be realized using various known techniques capable of selectively controlling the rotation of the rotating body. the

In detail, as shown in FIGS. 6A and 6B , guide grooves 51 are provided on the motor mounting body 50 , and fixing bolts 75 are inserted into the guide grooves 51 . Here, the fixing bolt 75 is mounted immovably, and the coupling nut 52 is tightened on the fixing bolt 75 . Therefore, the movement of the motor mounting body 50 is controlled by connecting the nut 52 and the fixing bolt 75 . the

As shown in Fig. 2 and Fig. 3A, 3B, in order to control the motor installation body 50 to rotate left and right around the left and right movable units 70 selectively, the mobile manual cutting machine according to the embodiment of the present invention includes a clinging plate 91, a metal Wire 92, the form of operating rod 93. the

If the abutting plate 91 of FIGS. 3A and 3B is not subjected to external force, the abutting plate 91 is kept away from the motor installation body 50 by the spring 94 . Therefore, the motor mounting body 50 is not pressurized. If an external force is applied to the abutment plate 91, the spring 94 is contracted and the abutment plate is pressed. Thus, the abutting plate 91 prevents the motor mounting body 50 from rotating. the

Here, the abutment plate 91 is connected to a wire 92 . the

Here, the operating rod 93 pulls the wire 92 , and external force can be applied to or removed from the close contact plate 91 . the

Therefore, the left and right rotational movement of the rotating body 51 in FIGS. 6A and 6B can be selectively controlled by the operation of the operating lever 93 . the

Optionally, the motor installation body 50 can rotate around the left and right movable units 70 , and a plurality of pin holes are provided on the motor installation body 50 and the left and right movable units 70 . Although not shown in the drawings, when the motor mounting body 50 corresponds to a rotating body, the motor mounting body 50 may be selectively restricted by inserting a pin into a pin hole. the

Preferably, the mobile manual cutting machine according to the present invention includes a ruler 100 marked with a length along the length direction of the left and right movable units 70, so that workers can measure the length of the object to be cut through the ruler 100 before cutting. the

Preferably the length of the ruler 100 can be controlled so as not to interfere with the cutting operation. the

In addition, the mobile manual cutter according to the present invention includes a protractor 110 enabling a worker to observe the rotation angle of the motor mounting body 50 . Therefore, the blade 30 can be tilted at a relatively correct angle relative to the object to be cut, so that the object to be cut can be cut obliquely. the

As described above, the mobile manual cutting machine according to the present invention enables the cutting operator to move the blade to the left and right, so that the cutting operator can perform not only small but also heavy objects by himself. Cut more accurately. Therefore, for cutting operators, the cutting operation is very easy. the

In addition, the mobile manual cutting machine according to the present invention enables the cutting operator to rotate the blade in left and right directions, thereby allowing the cutting operator to tilt and fix long and heavy objects to be cut, and to easily tilt the objects to be cut individually ground cut. the

Industrial Usability

As described above, the present invention can be applied to a mobile manual cutter in which, among various types of cutters for cutting objects to be cut, the rotating circular blade can be manually moved toward the object to be cut straightly. Or a mobile manual cutting machine that cuts objects obliquely. the

Claims (4)

1. A mobile manual cutting machine, comprising a main body with a workbench for placing a part of the long object to be cut and placed on the ground, a circular blade for cutting the object to be cut, and a rotary blade A motor for cutting the object to be cut with the blade, a motor mounting body provided with the motor, and a rotary handle for rotating the motor mounting body so that the motor and the blade rotate toward the object to be cut fixed on the workbench, the motor mounting body can The rotation makes the motor and the blade rotate towards the object to be cut fixed on the workbench, and it is characterized in that it also includes: The clamp is arranged in front of the main body, so as to press and fix the object to be cut placed on the workbench; The left and right movable units are arranged behind the main body so as to selectively slide left and right along the main body; The elastic body rotates the motor and the blade in a direction away from the object to be cut when the external force is removed from the rotation handle when the motor and the blade are rotated toward the object to be cut by applying an external force to the rotary handle, Wherein, the motor installation body is installed on the left and right movable units and moves together with the left and right movable units, Wherein, the left and right movable units include: a linear motion guide rail for guiding the sliding of the left and right movable units; A snug plate that separates from the linear motion rail due to the spring if no external force is applied to the abutment plate so that the linear motion rail is not pressed, and that contracts the spring if an external force is applied And exert pressure on the linear motion guide rail, thereby preventing the left and right movable units from moving; Metal wire, connected to the snug plate; The operation lever pulls the wire to apply external force to or remove the external force from the abutment plate, so that the selective left and right movement of the left and right movable units is realized by operating the operation lever. 2. The mobile manual cutting machine according to claim 1, wherein the motor mounting body selectively rotates left and right around the left and right movable units. 3. The mobile manual cutting machine according to claim 1, characterized in that it comprises: a ruler, along the length of the left and right movable units, the length is marked, so that the length of the object to be cut can be measured by the ruler for cutting. 4. The mobile manual cutting machine according to claim 2, further comprising: a protractor capable of measuring the rotation angle of the motor installation body.