JPH06182701A - Material cutting device - Google Patents

Abstract

PURPOSE:To provide a material cutting device simple in constitution, enhanced in working efficiency and having high safety during cutting work. CONSTITUTION:A material cutting device is equipped with a receiving stand 1 for a material 6 to be cut, the press member 5 pressing the material 6 to be cut on the receiving stand 1, the circular saw 9 positioned under the receiving stand 1 to cut the material 6 to be cut and the motor 13 for driving the circular saw 9 and constituted so that the circular saw 9 and the motor 13 are attached to a common support stand 10 and the press member 5 is supported in a liftable manner by links 3a, 3b and the press member 5 and the support stand 10 are connected to raise the circular saw 9 after the falling of the press member 5 is completed. Downward pulling force is allowed to act on the press member 5 at the time of the cutting of the material in the rising process of the circular saw and the pressing of the material 6 to be cut due to the press member 5 and the rising of the circular saw 9 can be performed during a series of operations.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material cutting device for cutting a plate made of wood, resin or other material.

[0002]

2. Description of the Related Art Conventionally, when a plate or the like made of a material such as wood or resin is cut, the smaller the size of the material to be cut, the more difficult the cutting work becomes, and the risk increases. That is, when the distance between the hand holding the material to be cut and the blade is short and it is necessary to continuously cut a material of several mm square, a very advanced technique is required.

Therefore, there is known a cutting device which mechanically presses the material to be cut on the pedestal and cuts the material to be cut by raising or lowering the blade in that state. There is a problem that the work efficiency is poor because the operation of mechanically pressing and the operation of raising or lowering the blade are separate. Further, this device has a problem that when a force exceeding the pressing force is applied to the material to be cut from the blade during the cutting work, it does not play the role of the pressing and leads to an accident.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and provides a material cutting device which is easy to operate, improves work efficiency, and is highly safe during cutting work. It is intended.

[0005]

In order to solve this problem, the present invention provides a pedestal for receiving a material to be cut, a pressing member for holding the material to be cut placed on the pedestal, and the pedestal of the pedestal. Equipped with a circular saw that is located below and that cuts the material to be cut and a motor that drives the circular saw, the circular saw and the motor that drives the circular saw are mounted on a common support base, and the pressing member can be moved up and down. And a circular saw supported by a link and connecting the pressing member and the supporting base so that the circular saw rises together with the supporting base after the lowering of the pressing member is completed. The pressing member is configured to exert a downward pulling force.

[0006]

With this construction, the material to be cut can be pressed by the pressing member and the circular saw can be raised in a series of operations, so that the operation is simple and the work efficiency can be improved. In addition, even if a force greater than the pressing force is applied to the material to be cut from the cutting tool during cutting work, the pressing member does not float and the pressing member can continue to press the material to be cut securely, ensuring safety during cutting work. It is possible to provide a high material cutting device.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a pedestal made of aluminum or the like provided on a frame 2. On the pedestal 1, a bracket 4 for pivotally supporting the upper and lower two links 3a, 3b near one end thereof is provided. It is erected.
The other ends of the links 3a, 3b are provided with a central pressing member 5 on the frame 2 so that the links 3a, 3b are always parallel.
Is pivoted to. Reference numeral 6 is a material to be cut, which is placed on the pedestal 1 and pressed by the pressing member 5. Reference numerals 7 and 8 denote a front cover and a rear cover that surround the front and rear of the material 6 to be cut placed on the pedestal 1, and are made of an abrasion resistant material such as aluminum or bakelite. The pressing member 5 is also made of an abrasion resistant material such as aluminum or bakelite.

Reference numeral 9 denotes a circular saw provided in the frame 2 below the receiving table 1, which is rotatably supported by a horizontal shaft 11 on a supporting table 10 provided in the frame 2. One end of the support base 10 is rotatably supported by a horizontal shaft 12 on the frame 2, and a motor 13 for driving the circular saw 9 is attached to the lower side of the support base 10. A belt 17 is hung between a pulley 15 provided on the motor shaft 14 and a pulley 16 provided on the circular saw shaft 11, and the rotation of the motor 13 is transmitted to the circular saw 9. Reference numeral 18 is a motor for raising and lowering operation provided at the upper end of the frame 2.
A chain sprocket 20 is attached to a shaft 19 of the chain, and a chain 21 whose one end is connected to an intermediate part of the lower link 3b is connected to the chain sprocket 20 through a chain sprocket 22 provided at the other end of the support 10. It is in mesh.
23 is one end of the lower link 3b and the bracket 4
A spring provided between the lower end of the circular saw 9 and the lower link 3b for urging the pressing member 5 in a floating direction, and 24 is a guide groove when the circular saw 9 moves up and down around the shaft 12, The tip of the circular saw shaft 11 is fitted. Reference numeral 25 is a stopper attached to the frame 2 to stop the downward movement of the motor 13 descending together with the circular saw 9 at a fixed position.

In the above structure, when the material 6 to be cut is to be cut, the material 6 to be cut is first placed on a fixed position of the pedestal 1, and the motor 18 is driven in the direction of arrow A in FIG. When the chain 21 is wound up by the chain sprocket 20, the lightly lifted pressing member 5 is first lowered in the vertical direction via the links 3a and 3b, and when the chain 21 is further wound up, it is attached to the support base 10 later. The motor 13 and the circular saw 9 provided therein are raised while being rotated around the shaft 12.

At the time of this ascent, the motor 13 is energized and the circular saw 9 is rotationally driven. During the ascending process, the upper end of the circular saw 9 hits the lower surface of the material 6 to be cut, and the material 6 to be cut is cut as the ascending progresses. At the time of this cutting, the circular saw 9 tries to hit the pedestal 1, the front cover 7, the rear cover 8 and the pressing member 5, so that the circular saw is attached to the pedestal 1, the front cover 7, the rear cover 8 and the pressing member 5 from the beginning. It is possible to form a groove through which 9 passes, but this material cutting device forms a cutting groove in the pedestal 1, the front cover 7, the rear cover 8 and the pressing member 5 with the circular saw 9 at the time of the first cutting work. You can

By the way, when the material 6 to be cut is cut, the circular saw 9 is used.
A force to push up the material 6 to be cut and the pressing member 5 acts from the above, but the length of the chain 21 between the lower link 3b and the chain sprocket 22 is shortened and the pressing member 5 and the circular saw 9 are cut.
And the force is applied between the pressing member 5 and the circular saw 9 in the direction of sandwiching the material 6 to be cut, so that the pressing member 5 is not pushed up and the material 6 to be cut can be surely kept pressed. Note that the circular saw 9 receives cutting resistance during cutting.
Tries to escape from the material 6 to be cut, the lower link 3
Since the length of the chain 21 between b and the chain sprocket 22 is short, the pressing member 5 can reliably continue to press the material 6 to be cut. At this time, the more the circular saw 9 tries to escape from the material 6 to be cut, the stronger the pressing force of the pressing member 5 works.

Further, although the cutting powder tends to scatter when the material 6 to be cut is cut, the cutting powder is covered by the pedestal 1 and the pressing member 5 from above and below and by the front cover 7 and the rear cover 8 from the front and back. It is possible to minimize the scattering of
Moreover, there is no risk of fingers touching the circular saw 9, and the work can be performed extremely safely.

After the material 6 to be cut is cut by the circular saw 9 as described above, the chain 21 is loosened by driving the motor 18 in the direction opposite to the direction of arrow A in FIG. 9 and the motor 13 move downward integrally with the support base 10, and the pressing member 5 is lifted by the pulling force of the spring 23, so that the cut material 6 can be taken out from the receiving base 1.

The material 6 to be cut is a plate made of wood, resin, metal or the like, and the circular saw 9 may be replaced depending on the type of the material 6 to be cut. By the way, in the embodiment shown in the drawings, the pressing member 5, the circular saw 9,
Although the raising / lowering operation of the motor 13 is configured to be performed by driving the motor 18, it is also possible to manually perform the raising / lowering operation by the handle without providing the motor 18.

[0015]

As described above, according to the present invention, the material to be cut can be pressed by the pressing member and the circular saw can be raised in a series of operations, and the operation is simple and the working efficiency is improved. be able to. In addition, even if a force greater than the pressing force is applied to the material to be cut from the cutting tool during cutting work, the pressing member does not float and the pressing member can continue to press the material to be cut securely, ensuring safety during cutting work. It is possible to provide a high material cutting device.

[Brief description of drawings]

FIG. 1 is a side view of a material cutting device according to an embodiment of the present invention.

FIG. 2 is a side view of the material cutting device in the use state.

[Explanation of symbols]

 1 Cradle 2 Frame 3a, 3b Link 4 Bracket 5 Holding member 6 Material to be cut 9 Circular saw 10 Support 11 Shaft 12 Shaft 13 Motor 18 Motor 19 Shaft 20 Chain sprocket 21 Chain 22 Chain sprocket

Claims (1)

[Claims] 1. A pedestal for receiving a material to be cut, and a holding member for holding the material to be cut placed on the pedestal,
A circular saw located below the pedestal for cutting the material to be cut and a motor for driving the circular saw, the circular saw and the motor for driving the circular saw are attached to a common support, A member is supported by a link so as to be able to move up and down, the pressing member and the support base are connected to each other, and the circular saw is raised together with the support base after completion of the lowering of the pressing member. The material cutting device is configured such that a downward pulling force acts on the pressing member when the material is cut.