Table type dust collection saw

Abstract

The invention discloses a table type dust collection saw which comprises a workbench, a table type saw mounted on the workbench and a lower dust blocking cover arranged below the workbench and surrounding a saw blade of the table type saw, wherein a dust outlet is formed in the lower dust blocking cover, and the table type dust collection saw is characterized in that a drum machine dust collection device synchronously rotating with the saw blade to collect dust is arranged on one side of a motor driving the saw blade to rotate in the table type saw; the drum machine dust collection device is provided with a first dust collection opening and a dust collection opening, the first dust collection opening is connected with the dust outlet through a connecting tube so as to collect saw dust generated during wood sawing, and the saw dust is discharged into a corresponding dust collection bag or a specified container through the dust collection opening. According to the dust collection saw, only one motor is used for achieving combination of two necessary functions of driving the saw blade to cut and collecting dust, the number of the motors is reduced, the weight, the size and the cost of the dust collection saw are obviously optimized, and the corresponding cost of later maintenance is also reduced.

Description

technical field [0001] The invention belongs to the technical field of wood cutting, and in particular relates to a desktop dust collection saw. Background technique [0002] In the woodworking workshop, the table saw for cutting wood is an essential equipment. Using the table saw to cut wood usually produces a large amount of wood dust. In the current existing technology, the design of the dust removal device and the dust-free table saw There have been many developments, and the typical ones are as follows: the Chinese invention patent with the notification number CN 107150378 B has announced a dust-free table saw. The saw blade cavity housing the saw blade is then provided with a suction channel to connect the connecting pipe for collection. Since the saw dust is driven by the saw blade to move along the tangential direction during cutting, that is, more than 90% of the saw dust will enter the lower part of the cutting table. A better dust removal effect can be produced b...

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Problems solved by technology

[0003] However, the dust collection of this technical solution needs to be driven by a separate motor. Therefore, the dust-free table saw needs to be equipped with two motors, which makes the original need to move The table saw used increases the weight of a motor and the corresponding accessories. On the other hand, the corresponding volume also becomes larger, which makes it very inconvenient to move and change the site, and increases the cost of the motor and increases the number of steps in the operation. reduced maintenance costs and energy consumption

[0004] On the other hand, when the table saw cuts wood, about 10% of the sawdust is projected outward from the saw blade on the upper part of the exposed workbench. Therefore, some table saws are also equipped with corresponding devices to collect the sawdust on the upper part of the workbench. The specific method of collection is to install a three-way connection on the connecting pipe of the lower collecting device to connect to the collecting pipe of the upper collecting device, so that a dust suction blower motor can be shared, but we found that this connection without air volume distribution The method is not stable for the air volume of the two suction ports. This is because the pipe connecting the upper part is longer and the pipe diameter is smaller. When the upper and lower ports are completely unblocked, the lower suction port has a large The path is short, so the wind power is mainly concentrated in the lower part, and the air suction volume of the upper dust suction port is very small. When working, due to the instantaneous inhalation of a large amount of sawdust, the pipeline will be blocked instantaneously, and the suction volume of the dust suction blower will be transferred to the upper part. At this time, the suction force of the upper and lower suction ports is unstable.

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