JPS5922962Y2 - sawdust dust collector - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a sawdust dust collector.

When cutting a long piece of veneer or plywood with a length of 2m to 10m using a circular saw, there is a way to cut the long piece by moving the circular saw.

A conventional device implementing this method is shown in FIG.
A guide rail 1 and a drive chain 2 are arranged side by side, and a dust collection hood 4 equipped with a circular saw 3 and a motor (not shown) is movably guided along the guide rail 1, and connected to the drive chain 2 for movement. , a dust collection duct 5 using a flexible hose is connected to the discharge port of the hood 4, a dust collector (not shown) is connected to the dust collection duct 5, and sawdust is collected and removed without moving the dust collection hood 4; A duct winder (not shown) adjusts the duct length according to the distance traveled.

However, the sawdust dust collector for this long object cutting device requires a large duct length and winder, which increases the equipment space and equipment costs, and the air resistance during dust collection is enormous, resulting in large losses. The disadvantage is that the duct system becomes larger and the cost becomes higher.

Therefore, an object of this invention is to provide a saw dust collection device that reduces equipment space and equipment cost.

A cutting device to which an embodiment of this invention is applied is shown in FIGS. 2 to 4.

That is, in this cutting device, a guide rail 7 and a belt conveyor 8 are arranged in parallel to a workpiece fixing table 6, a dust collection port 8a is provided on the upper belt 8' of the belt conveyor 8, and a dust collection port 8a is provided on the upper belt 8' of the belt conveyor 8. A vacuum chamber 9 having approximately the length of the conveyor is fixedly installed inside the vacuum chamber 9, and its upper end opening is closed by the upper bells 1 to 8' as a sliding lid, so that it is in close contact with the slide guard, and the upper belt 8' is closed by the upper belt 8'. Attach the lower end of the heat collection foot O to communicate the discharge port 11 and the dust collection port 8a, and let the front and rear of the dust collection foot 0 be slidably guided to the guide rail 7 by the support member 12 to collect the dust. A circular saw 13 and its drive motor (not shown) are installed in the hood 10 so that the upper part of the saw blade of the circular saw 13 projects above the fixed base 5.

Further, a duct 14 is connected to the side surface of the vacuum chamber 9, and connected to a dust collector (not shown).

Further, a forward/reverse rotation motor (not shown) is connected to the drive pulley 15 of the belt conveyor 8, and a dust collection port 8a of the upper belt 8' is connected to the drive pulley 15 of the belt conveyor 8.
The forward and reverse rotation motor is controlled by a limit switch (not shown) so that the motor reciprocates from one end of the vacuum chamber 9 to the other end.

Now, in this cutting device, the object to be cut A is placed on the fixed table 5, the cutting line is aligned with the movement line of the circular saw 13, and the object is positioned and fixed.
When the circular saw drive motor and the forward/reverse rotation motor are driven, cutting starts, and when the dust collector is activated, saw dust is collected and removed from the hood 10.

That is, the circular saw 13 rotates to cut the object A that comes into contact with the saw blade.
While sawing, cut the L side bells I and 8 of belt conveyor 8.
By the movement of ', the force idle rail 7 is guided and driven.

In addition, the sawdust falls inside the dust collection hood 10 without scattering, and is collected at the discharge port 11 and dust by the suction force of the dust collector.
The dust is sucked into the vacuum chamber 9 through the duct 14 and collected into the dust collection bag of the dust collector.

In this case, one end of the vacuum chamber 9 is hermetically closed by the upper belt 8', leaving only the dust collection port 8a open, so that dust is always suctioned and collected no matter where the circular saw 13 is located.
The suction force is constant and the duct 14 does not move.

As described above, the sawdust dust collection device of this invention has a hood connected to the dust collection port formed on the moving belt, a chamber with the belt as a sliding lid under the belt, and suction and collection from the non-moving chamber. Because it collects dust, the structure of the duct system can be simplified compared to the conventional one, reducing equipment space and equipment costs, and reducing pressure loss, making the dust collector smaller, saving energy, and improving dust collection efficiency. This has the effect that it is possible to achieve the following.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of a cutting device to which a conventional saw dust collector is applied, Fig. 2 is a side view of a cutting device to which an embodiment of the present invention is applied, and Fig. 3 is a perspective view of its main parts. FIG. 4 is a partial perspective view showing the state of movement of the upper belt. 8...Belt conveyor, 8'...-Upper belt, 9...Vacuum chamber, 10.
...Dust collection hood, 11 ...Exhaust port, 13
...Circular saw, 14...Dust collection duct.

Claims (1)

[Scope of utility model registration request] a dust collection hood that is attached to a circular saw and moves with the circular saw;
A sawdust collector equipped with a moving belt to which the exhaust port of the dust collecting hood is attached and communicates with its own dust collecting port, a vacuum chamber that opens using the moving belt as a sliding lid, and a dust collector connected to the vacuum chamber. dust equipment.