JPS5941004Y2 - Woodworking belt sander with dust collector - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a belt sander for woodworking with a dust collector.

Various belt sanders have traditionally been used to achieve high finishing grinding power on wood, but none of these conventional sanders are equipped with a dust collection device, so in order to prevent pollution, it is necessary to use a separate structure. Currently, it is used in conjunction with a dedicated dust collector.

However, it is of course economically expensive to purchase a sander and a dedicated dust collector separately and use them together.
In particular, this poses a major problem in terms of installation space in factories.

Furthermore, in conventional use, even if a dedicated dust collector is used in conjunction with the sander to suck out grinding dust, the suction port of the dedicated dust collector is fixed near the reversal point of the abrasive belt, which is hung endlessly through a pulley, for example. Therefore, it is impossible to completely suck up the grinding dust with only such a fixed suction port, and it has not been possible to effectively solve the problem of fine dust pollution.

In particular, wood sanders perform surface grinding and curved surface grinding work on almost the entire circumference of the abrasive belt, so the conventional structure with a single suction port and a fixed type naturally makes it difficult to avoid grinding dust. It is clear that this will lead to complete dust collection.

Therefore, the present invention incorporates a dust collector in the sander itself, and adopts a structure that enables the conventional fixed type suction and the new movable type suction with the dust collector. The aim is to effectively solve problems.

Hereinafter, the present invention will be described in detail based on one embodiment illustrating the present invention.
As shown in the figure, a driving pulley 3 driven by a motor 2 and a driven pulley 4 whose tension can be adjusted are disposed on the upper part of the main body 1, and both the pulleys 1 and 2 are connected to each other. An endless abrasive belt 5 is hung between 7 and 3.4, and a material is applied to the rotating abrasive belt 5 via a lifting-adjustable table 6.7 attached to the front and side parts of the main body 1, for example. It has a configuration that allows grinding of flat or curved surfaces for 6 hours by pressing the surface.

Further, an electric blower 8 is provided in the internal upper chamber 1a of the main body 1, and a bag filter 9 is provided in the lower chamber 1b communicating with the upper chamber 1a.
are suspended in a meandering manner, and air containing grinding dust is sucked into the lower chamber 1b from a connection port (described later) by the suction action of the electric blower 8, and the dust and air are separated by a bag filter 9 in the lower chamber 1b. The structure is such that only clean air is exhausted to the outside from an exhaust port 25 provided at the back of the main body 1.

In addition, it is separated by the bag filter 9 and the bag filter 9
The fine dust adhering to the main body 1 is collected in a dust collector 10 provided at the bottom of the lower chamber 1b of the main body 1 using a falling structure shown in FIG.

As shown in the figure, the dropping structure includes a plurality of dropping rods 11 that are inserted through each meandering interval of the bag filter 9, and each of the dropping rods 11.
The front and rear support plates 12a support the bag filter over the hanging width thereof.

12b, and both support plates 12 are pivoted at appropriate positions in the lower chamber 1b.
an actuating plate 13 that supports one end of the support plates 12a and 12b, and a handle 4 that protrudes to the outside of the main body 1 and has a base fixed to a drop bar 11 that is supported at the othermost end of both support plates 12a and 12b. By moving the operation handle 14 in and out of the main body 1, the dropping rod 11f within each meandering interval of the bag filter 9 is moved in the left and right directions in the figure, and the fine dust adhering to the bag filter 9 is effectively removed. The dust is dropped into the dust collector 10.

Furthermore, the present invention has a large-diameter connecting port 1 in the lower chamber 1b of the main body 1 at an appropriate location.
5 and a small diameter connection port 16 are formed respectively, and a large diameter connection port 15 is formed.
There is a large diameter bellows-shaped suction hose 1 whose one end is connected to a fixed suction port 18 formed near the reversal of the abrasive belt 5 of a safety cover 11 that covers almost the entire drive pulley 3.
9 is connected to the other end of the fixed suction port 18, and the air containing fine dust sucked from the fixed suction port 18 is guided into the lower chamber 1b from the connection port 15 via the suction hose 19. The other end of a small diameter bellows-shaped suction hose 21 having a suction port 20 is connected to the movable free end of the suction hose 2.
Air containing fine dust sucked from one movable suction port 20 is guided into the lower chamber 1b from the connection port 16 via the suction hose 21.

The fixed suction port 18 to which one end of the large-diameter suction hose 19 is connected is provided with a shielding plate 22, and the shielding plate 22 closes the suction port 1.
8 can be appropriately closed, and the suction hose 2 has a small diameter.
The movable suction port 20 of 1 is provided with a cap body 23, and the suction port 20 can be appropriately closed with the cap body 23, and a magnet 24 is provided on the free end side of the small diameter suction hose 21. The action of the suction port 20 of the suction hose 21 is
The structure is such that it can be freely moved and installed at any location.

Therefore, in the woodworking belt sangu according to the present invention having the above structure, when surface grinding of wood is performed using the table 6 provided at the front part of the main body 1, for example, the movable The suction port 20 is closed with the cap body 23 and dust is collected by the fixed suction port 18.
As described above, the safety cover 17 that covers almost the entire drive pulley 3 is formed near the reversal of the abrasive belt 5, so that the grinding dust adhering to the belt 5 is covered by the centrifugal force caused by the reversal of the belt 5. 17 and is immediately sucked through the fixed suction port 18, making it possible to improve the dust collection effect more than before.

In addition, since fine dust is likely to be scattered especially when the polishing pel 150 is reversed, the fixed suction port 18 near the drive pulley 3 is
In addition to the main suction, the movable suction port 20 of the /J niece suction hose 21 can be freely moved and installed near the driven pulley 4 via the magnet 24, and the suction port 20 can also perform supplementary suction. , more complete dust collection becomes possible.

For example, when grinding a curved surface of wood using the table 7 provided on the side of the main body 1, the fixed suction port 18 may be closed with a shielding plate 22, or an open case may be used.
The movable suction port 20 of the Ji suction hose 21 is freely moved and installed at an appropriate position on the table γ via the magnet 24 as shown in FIG. By doing so, it becomes possible to reliably collect fine dust that is scattered due to curved surface grinding.

Moreover, since the suction hose 21 having the movable suction port 20 at its free end has a small diameter, a strong suction force can be obtained by closing the fixed suction ports 1 and 8, which is extremely effective for partial dust collection. It is true.

Therefore, after finishing the grinding work, it is possible to hold the suction port 20 of the small-diameter suction hose 21 in your hand and clean the main body 1 or the table 6/1 surface.

Although the drawings show an embodiment for a vertical type belt sander, the present invention is not limited to the vertical type, but can be applied to horizontal type and other various types of belt sanders! not.

Further, in the above embodiment, one small-diameter suction hose 21 having a movable suction port 20 is connected to the lower chamber 1b of the main body 1, but a plurality of small-diameter suction hoses 21 may be connected depending on the implementation. This is also optional.

As mentioned above, the present invention is characterized by having a dust collector built into the main body of the belt sander itself, so it is possible to combine a conventional sander with a dedicated dust collector, which not only contributes significantly to the economy, but also improves the efficiency of conventional belt sanders. This also solved the problem of factory installation space.

Moreover, the present invention is equipped with a small-diameter suction hose having a suction port at its movable free end, and the suction port can be moved to any location via a magnet provided at the free end of the small-diameter suction hose. Since it is characterized by being movable, if the flexible suction by the movable suction port is used together with the fixed position suction by the fixed suction port,
The movable suction port can supplementally suction fine dust that cannot be collected by the fixed suction port, resulting in a complete dust collection effect.

In addition, by selecting an appropriate installation location for such a movable suction port and using it alone, it is possible not only to effectively collect fine dust from curved surface grinding, but also to freely collect dust from any other location. In addition to this, it can also be used for cleaning after work is completed, so its practicality and usefulness are extremely high.
There will be no pollution problems associated with the use of sanders.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view of a woodworking belt with a dust collector according to the present invention, and Figure 2 is a perspective view of the same belt. FIG. 3 is a plan view of the same, and FIG. 4 is a perspective view showing an aspect of freely suctioning with a movable suction port of a small-diameter suction hose. 1... Sander main body, 3... Drive pulley, 4... Driven pulley 5... Polishing belt, 8... Electric blower, 9... ...Bug film, 18...Fixed suction port, 19...
...Large diameter suction hose, 20...Movable suction port, 21...Small diameter suction hose, 24...
····magnet.

Claims (1)

[Scope of utility model registration request] This is a woodworking belt sander that performs surface and curved surface grinding of wood by rotating an abrasive belt that is hung endlessly between a driving pulley and a driven pulley. A blower and a filter are provided, and a fixed suction port is formed near the reversal point of one force of the abrasive belt, and the fixed suction port and the inside of the main body are connected with a large diameter 0 suction hose, and the fixed suction port is used to maintain a fixed position. In addition to being configured to perform suction, a small-diameter suction hose having a suction port at its movable free end is also connected to the inside of the main body, and the movable suction port of the small-diameter suction hose performs free suction. Components: A belt sander for woodworking with a distinctive dust collector.