Dust collecting cover for electric circular saw and dust collecting method
A technology of dust collection hood and electric circular saw, which is applied in bark area/debris/dust/waste removal, wood processing equipment, manufacturing tools, etc., which can solve dust and dust, inconvenience, work site and surrounding air Pollution and other problems to achieve the effect of improving the dust collection effect and simplifying the dust collection mechanism
Inactive Publication Date: 2016-07-06
张成峰
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Problems solved by technology
[0003] At present, there are some dust covers on the market similar to the functions of the above-mentioned dust collection covers, but this type of dust cover can only play a certain role in inhibiting the dust ejected from the rear teeth of the saw blade, and cannot collect this part of dust Into the dust collection device on the lower side of the cut object
In addition, some dust collection hoods similar to the function of the above-mentioned dust collection hood have also appeared on the market. After bypassing the object to be cut, it is connected to the dust collection equipment, because the hose will block the cutting path of the object to be cut, this kind of vacuum hood with hose is extremely inconvenient when cutting larger objects
[0004] In addition, in wood processing plants with a high usage rate of electric circular saws, people usually set up two dust suction ports with covers to collect the dust generated on the top and bottom of the cut object, and the dust dust on the upper side of the cut object is suspended The dust collection hood above the cut object needs to keep a certain distance from the cut object, which will lead to unsatisfactory dust collection effect
But for some small electric circular saws with strong mobility, it is especially unrealistic to configure such a complicated and huge dust collection device.
[0005] Due to the above reasons, the comprehensive promotion and popularization of electric circular saw dust-free operation has been greatly restricted. In addition, electric circular saws are widely used in people's production process, and the resulting dust and dust are so much that it is difficult to count , causing serious harm to the health of the operator, and causing great pollution to the work site and the surrounding air
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[0024] The present invention will be further described below in conjunction with drawings and embodiments.
[0025] Such as Figure 1 to Figure 3 As shown, what the present invention describes is a dust collection cover for electric circular saw, which includes a dust collection cover body 1 with a cavity structure inside, and the bottom surface of the dust collection cover body 1 is provided with a hole for the saw blade to penetrate. Strip-shaped opening 11, the inside of the cavity 12 of the dust collecting hood body 1 is formed with an airflow passage that communicates with the outside only through the strip-shaped opening 11, and the air inlet and air outlet of the airflow passage are formed in the strip-shaped At the rear end of the mouth 11, wherein the air inlet is formed at the near sawtooth place 111 at the rear end of the bar-shaped mouth, and the air outlet is formed at the far-sawtooth place 112 at the rear end of the bar-shaped mouth; the airflow direction formed...
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The invention relates to a dust collecting cover for an electric circular saw and a dust collecting method. A cavity is formed in a body of the dust collecting cover, a strip-shaped opening which is used for a saw blade to pass through is formed in the bottom surface of the cavity, and other surfaces of the cavity are closed; an airflow passage is automatically formed in the cavity during operation, and the airflow passage starts from the back end, which is close to sawteeth, of the strip-shaped opening, is arced to the front end of the strip-shaped opening along the outer edge of the saw blade, then is bent to the upper back part from the upper wall of the cavity to the back part of the cavity, then is bent downwards and stops at the back end, which is far from the sawteeth, of the strip-shaped opening. According to the dust collecting method, by virtue of the dust collecting cover and airflow generated by the rotation of the saw blade, when dust thrown by back teeth of the saw blade enters the cavity of the body of the dust collecting cover and forms the airflow passage, the dust flows to the lower side of a cut object through the saw kerf of the cut object under the entrainment of airflow in the passage, and the dust is collected by a dust collecting device on the lower side of the cut object. Thus, the structure of the dust collecting device of the electric circular saw is greatly simplified, and the dust collecting effect and the practicability are increased.
Description
technical field [0001] The invention relates to the field of electric tools, in particular to a dust collection cover for an electric circular saw and a dust collection method. Background technique [0002] As we all know, when the electric circular saw is placed on the lower side of the object for cutting, the rear teeth of the saw blade throw a lot of dust to the front and upper side of the saw blade. When the electric circular saw is placed on the upper side of the object for cutting, the saw blade The rear teeth of the blade eject a large amount of dust to the front and rear of the saw blade, and the front teeth of the saw blade eject a large amount of dust at the same time on the lower side of the cut object. In the known dust-free electric circular saw and electric circular saw dust collection equipment, there is no simple and effective mechanism or method that can directly collect the dust that appears on the upper and lower sides of the cut object to the cut object ...
Claims
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IPC IPC(8): B27G3/00
CPCB27G3/00
Inventor张成峰张成玉
Owner张成峰