Fine polishing machine for planks

Abstract

The invention relates to the field of polishing devices and discloses a fine polishing machine for planks. The fine polishing machine comprises a rack, a motor, a coarse polishing roller and a fine polishing roller. The coarse polishing roller is connected with a first gear, the fine polishing roller is connected with a second gear, and a third gear is engaged between the first gear and the second gear. A suction hood is arranged below the coarse polishing roller, a nozzle is arranged on the suction hood, an impeller is arranged on the bottom of the suction hood and connected with a first bevel gear, the first bevel gear is engaged with a second bevel gear, the second bevel gear is connected with a first belt wheel, and the motor is provided with a second belt wheel. The end portion of the fine polishing roller is fixedly connected with a cylindrical cam, the cylindrical cam abuts against a mandrel, the mandrel penetrates a polishing cylinder, springs are connected between the mandrel and the rack, a piston plate is fixedly connected to the mandrel, the piston cylinder is provided with a one-way liquid inlet valve and a one-way liquid outlet valve, the one-way liquid inlet valve communicates with a water tank, and the one-way liquid outlet valve communicates with the nozzle. Compared with the prior art, the fine polishing machine has the beneficial effects of being high in polishing efficiency, and the equipment cost is lower.

Description

technical field [0001] The invention relates to the field of grinding devices, in particular to a wood fine grinding machine. Background technique [0002] During the smoothing process of wooden boards, a sander is required. However, because a large amount of dust is generally generated when the surface of the wood is ground with a grinder, the dust is all wood chips, and the ignition point of the wood chips is very low. If the dust is not sprayed in time after the dust is generated, it will Sometimes the dust may cause a dust explosion or cause a fire. In this way, it will cause great economic losses to the wood processing enterprise, and may also pose a threat to the life of the wood processing personnel. [0003] For this reason, the patent document that the application number is CN201410458838.5 discloses a kind of wood grinding and dust-absorbing device, comprises grinding mechanism, dust-absorbing mechanism, humidifier and pendulum mechanism, and grinding mechanism co...

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Problems solved by technology

[0004] Although this solution has a humidifier installed in front of the dust collection mechanism, it avoids the occurrence of dust explosion; but this solution still has the following problems: the dust collection mechanism and humidifier of this solution need to be driven by separate power equipment, making the whole A large number of devices are used, resulting in an increase in the manufacturing cost of the entire device

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