Polishing head with dustproof function and polishing machine

Abstract

The invention discloses a polishing head with a dustproof function. The polishing head comprises a spindle box and a sealing device, wherein a sliding sleeve capable of moving up and down is arranged in the spindle box; and the sealing device is arranged in a sealing cavity in the front end of the spindle box. The sealing device comprises a body, an upper elastic body, a lower elastic body, a sealing part and a pair of annular bodies, wherein an upper annular part abuts against the upper wall of the sealing cavity, and an upper conical part abuts against the upper conical surface of the body; a lower annular part abuts against the upper surface of an end cover, and a lower conical part abuts against the lower conical surface of the body; the sealing part is arranged on the periphery of the sliding sleeve in a sleeving mode, embedded in the body and located between the upper elastic body and the lower elastic body; and one of the annular bodies is arranged on a second upper annular groove of the sealing part in a sleeving mode, and the other of the annular bodies is arranged on a second lower annular groove of the sealing part in a sleeving mode. The polishing head is reliable in sealing and has a great dustproof effect.

Description

technical field [0001] The invention relates to stone processing equipment, in particular to a dust-proof grinding head and a polishing machine. Background technique [0002] As a high-grade building decoration material, stone is widely used in various public places. Generally, the ore is cut to form a plate. To meet the actual decoration requirements, the stone must be refined again. In actual production, the outer surface of the plate needs to be polished. It can only be accepted for use. At present, the polishing machine is used in the production of stone slabs for polishing. The polishing machine in the stone machinery is to grind the rough stone surface to make it smooth, smooth and eliminate the appropriate thickness. The grinding machine in the existing polishing machine The motor drives the transmission mechanism to rotate the grinding head to process the plate. However, during processing, there is a lot of dust, and the dust easily enters the bearing and the grindin...

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Problems solved by technology

[0002] As a high-grade building decoration material, stone is widely used in various public places. Generally, the ore is cut to form a plate. To meet the actual decoration requirements, the stone must be refined again. In actual production, the outer surface of the plate needs to be polished. It can only be accepted for use. At present, the polishing machine is used in the production of stone slabs for polishing. The polishing machine in the stone machinery is to grind the rough stone surface to make it smooth, smooth and eliminate the appropriate thickness. The grinding machine in the existing polishing machine The motor drives the transmission mechanism to make the grinding head rotate, so as to process the plate, but during processing, there is a lot of dust, and the dust is easy to enter the bearing and grinding head, causing early damage to the bearing and grinding head

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