JP3604292B2 - Thread sawing machine - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a thread sawing machine capable of collecting chips generated by cutting a material to be cut.
[0002]
Problems to be solved by the prior art and the invention
Registered Utility Model No. 3028076 discloses a dust collecting device for a thread sawing machine. In this dust collecting apparatus, a suction port of a ventilation pipe is disposed near a place where a thread saw penetrates a table on which a material to be cut is mounted vertically, and the end of the ventilation pipe is opened at the rear of the thread sawing machine. By connecting the suction hose of the vacuum cleaner to the end of the ventilation pipe, it is attempted to remove chips generated around the thread saw from the suction port of the ventilation pipe.
[0003]
However, in this dust collector, the suction hose of the electric vacuum cleaner is connected from the rear of the thread sawing machine. It gets in the way. Further, since the ventilation pipe is arranged inside the main body of the thread sawing machine from the vicinity of the thread saw to the rear part of the thread sawing machine, it is troublesome to incorporate the dust collecting device. In addition, not only the chips but also the wood ends are sucked on the lower surface of the table, so the lower ventilation pipe is particularly clogged. Must.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the invention according to claim 1 relates to a thread sawing machine for cutting a material to be cut placed on a table (17) by driving a thread saw (8) up and down. Suction means (20, 20b) for sucking chips on the upper surface side of the table, and a dust collecting adapter (40) having a box-shaped body (40a) attached to the lower surface of the front part of the table (17), The box-shaped main body (40a) of the dust collecting adapter (40) has a suction part (40b) for sucking chips on the lower surface side of the table (17), and a suction means connected to the suction means (20, 20b). A thread sawing machine having a connection portion (40c) and a suction hose connection portion (40d) to which a suction hose (42) of the dust collector can be connected is employed.
[0005]
The invention according to claim 2 employs the thread sawing machine according to claim 1, wherein the suction hose connection part (40d) of the dust collection adapter (40) is located forward of the thread saw (8).
[0006]
According to a third aspect of the present invention, the suction means (20, 20b) is removably provided in a groove (10a) formed on a side surface of an arm (10) for holding an upper part of the thread saw (8) in the thread sawing machine. The thread sawing machine according to claim 1 or claim 2 is adopted.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
As shown in FIG. 1, this thread sawing machine has a base 1 in which a motor 2 for driving the thread saw is arranged. A crankshaft 3 is attached to a tip of an output shaft 2 a of the motor 2, and a crankpin 4 of the crankshaft 3 is connected to a lower slide bar 6 via a connecting rod 5. The crankshaft 3 is formed in a disk shape in which the crankpin 4 and the crank arm are integrated. The lower slide bar 6 is held on the base 1 via a guide tube 7 so as to be slidable in the vertical direction. When the motor 2 starts, the crankshaft 3 rotates together with the output shaft 2 a, and this rotating motion is converted by the connecting rod 5 into a vertical reciprocating sliding motion of the lower sliding rod 6.
[0009]
At a portion of the lower slide bar 6 protruding above the base 1, a thread saw gripping means 9 for detachably gripping a lower portion of the thread saw 8 is provided. Since the thread saw gripping means 9 is a device having a known mechanism, a detailed description thereof will be omitted.
[0010]
A bent fixed arm 10 is attached to the base 1 on the side opposite to the position of the lower slide bar 6, and a horizontal portion of the fixed arm 10 extends directly above the base 1. A movable arm 11 is rotatably connected to a distal end of the horizontal portion via a hinge 12.
[0011]
An upper slide bar 13 facing the lower slide bar 6 is attached to the distal end of the movable arm 11 so as to be slidable in the vertical direction. The upper sliding bar 13 is constantly urged upward by a spring 14 shown in FIG. A thread saw gripping means 15 is provided below the upper slide bar 13. The thread saw gripping means 15 is a known clamp mechanism similar to the lower thread saw gripping means 9 for detachably gripping the upper portion of the thread saw 8.
[0012]
The thread saw 8 held between the upper and lower sliding bars 13 and 6 by the thread saw gripping means 15 and 9 descends against the urging force of the spring 14 when the lower sliding bar 6 slides downward by the activation of the motor 2. When the lower slide bar 6 slides upward, it is pulled by the spring 14 and rises. The thread saw 8 repeats such a vertical reciprocating sliding motion as the motor 2 rotates.
[0013]
A material holder 16 is attached to an intermediate portion of the movable arm 11. The material presser 16 serves to press and fix the material processed by the thread saw 8 on a table 17 described later.
[0014]
Below the upper slide bar 13 and the material presser 16 on the movable arm 11, a table 17 on which a material is placed is arranged. The table 17 is mounted on the base 1 via positioning means (not shown) so that the upper surface thereof is horizontal or inclined. At the approximate center of the table 17, a saw through hole 18 for passing the thread saw 8 is provided.
[0015]
As a dust collecting device for catching and collecting chips, the yarn sawing machine has a suction means for sucking chips on the upper surface side of the table 17, a dust collecting adapter 40 attached to the lower surface of the table 17, and a dust collector (not shown). Are provided.
[0016]
The suction means is specifically constituted by a ventilation tube 20 made of, for example, a flexible tube. As shown in FIG. 1, the ventilation pipe 20 has one end 20 a connected to a dust collection adapter 40. The opening 23 at the other end 20b of the ventilation pipe 20 faces the location where the thread saw 8 penetrates upward through the saw-through hole 18 of the table 17, that is, the location where cutting chips are generated on the upper surface of the table 17. The opening 23 can be formed by attaching a separately formed suction member to the tip of the tube. The other end 20 b of the ventilation pipe 20 is supported by a rod that supports the material retainer 16.
[0017]
The ventilation pipe 20 is piped along the fixed arm 10 on the base 1, is housed in a groove 10 a formed on the side surface of the fixed arm 10, and is integrally formed on the fixed arm 10. 10b. The ventilation tube 20 is pushed into the holder 10b and fixed by elastic deformation.
[0018]
As shown in FIGS. 1 to 3, the dust collecting adapter 40 has a box-shaped main body 40 a fixed to the front lower surface of the table 17 with screws 41, and cuts the box-shaped main body 40 a on the lower surface side of the table 17. It has a suction part 40b for sucking powder, a suction means connection part 40c to which the ventilation pipe 20 of the suction means is connected, and a suction hose connection part 40d to which the suction hose 42 of the dust collector can be connected. The box-shaped main body 40a is elongated in one direction as shown in FIG. 3, and as shown in FIG. It is attached to the bottom surface of the table 17 so as to cover a part reaching one corner.
[0019]
The suction portion 40b covers a portion where the thread saw 8 penetrates the table 17 downward, and receives the chips generated by sawing under the table 17. A sawing hole 43 through which the thread saw 8 penetrates is formed in the suction portion 40b. The suction means connecting portion 40c is provided so as to protrude from a side wall of the box-shaped main body 40a, and one end 20a of the ventilation pipe 20 is connected thereto. The suction hose connecting portion 40d is protruded below the bottom of the box-shaped main body 40a so as to be located forward of the position of the thread saw 8 in the dust collecting adapter 40, and the suction hose 42 of the dust collector is connected thereto. The suction hose connecting portion 40d is more specifically provided at the forefront of the dust collecting adapter 40, and therefore is located at the forefront of the thread sawing machine, as shown in FIGS. It will be connected to the front side of the panel.
[0020]
Although not shown, the dust collector is a device provided with a blower and a dust container, and is installed outside the thread sawing machine. Note that a household vacuum cleaner may be used instead of the dust collector.
[0021]
According to this thread sawing machine, the thread saw 8 cuts a workpiece such as wood on the table 17 while reciprocating up and down linearly by the activation of the motor 2. At the time of cutting, the switch of the dust collector is turned on in advance. When the blower in the dust collector is started, the inside of the ventilation pipe 20 and the dust collecting adapter 40 become negative pressure, and the outside air flows through the opening 23 of the ventilation pipe 20, the saw hole 18 of the table 17, the suction part 40 b, and the like. The dust flows into the box-shaped main body 40a of the dust adapter 40. As a result, chips, wood ends, and the like generated when the thread saw 8 cuts the material to be cut are sucked into the ventilation pipe 20 from the opening 23 at the other end 20b of the ventilation pipe 20, and are cut from the material to be cut and the table 17. Be excluded. Chips sucked into the ventilation pipe 20 pass through the ventilation pipe 20 and flow into the dust collecting adapter 40 from the suction means connecting portion 40c. Further, chips, wood ends, and the like that fall below the table 17 from the saw-through holes 18 and the like of the table 17 are received by the suction unit 40 b of the dust collection adapter 40. Chips, wood ends, and the like that flow into the box-shaped main body 40a of the dust collection adapter 40 are drawn into the suction hose 42 of the dust collector from the suction hose connection portion 40d, and are collected in the dust collection container.
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028]
[0029]
[0030]
[0031]
[0032]
[0033]
[0034]
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
[0042]
[0043]
[0044]
[0045]
[0046]
【The invention's effect】
According to the first and second aspects of the present invention, the chips generated around the thread saw can be reliably removed by sucking the chips from the upper surface and the lower surface of the table. Further, since the suction hose of the dust collector is connected to the dust collecting adapter attached to the lower surface of the table of the thread sawing machine, the suction hose of the dust collector does not become an obstacle even if the thread sawing machine is arranged so as to be in contact with the wall surface. Further, the dust collecting device can be easily incorporated into the main body of the thread sawing machine. Furthermore, since suction is performed from the lower surface side of the table through the box-shaped main body of the dust collecting adapter , the chips and the wood ends are hardly clogged, so that the dust collecting efficiency is not reduced and the cleaning can be easily performed.
[0047]
According to the third aspect of the present invention, since the suction means is detachably disposed in the groove of the arm, the suction means can be easily cleaned.
[Brief description of the drawings]
FIG. 1 is a right side view of a thread saw according to the present invention .
FIG. 2 is a view of the table of the thread sawing machine shown in FIG. 1 as viewed from below.
FIG. 3 is a perspective view of a dust collection adapter.
[Explanation of symbols]
2 ... motor 8 ... thread saw 17 ... table 20 ... ventilation pipe 20a ... one end 20b of ventilation pipe ... other end 40 of ventilation pipe ... dust collecting adapter
40a box-shaped main body 40b suction part 40c suction part connection part 40d suction hose connection part 42 suction hose

Claims (3)

In a thread sawing machine for cutting a material to be cut placed on a table by driving a thread saw up and down, a suction means for sucking chips on an upper surface side of the table, and a box-shaped body attached to a lower surface of a front portion of the table A dust collecting adapter having a dust collecting adapter, wherein the box-shaped main body of the dust collecting adapter has a suction part for sucking chips on the lower surface side of the table, a suction means connecting part to which the suction means is connected, and a dust collector. A yarn sawing machine comprising: a suction hose connection portion to which a suction hose can be connected. 2. The thread sawing machine according to claim 1, wherein the suction hose connection of the dust collecting adapter is located forward of the thread saw. 3. The thread saw machine according to claim 1, wherein the suction means is detachably provided in a groove formed on a side surface of an arm for holding an upper portion of the thread saw in the thread saw machine.

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