Mushroom head assembly of water mist sand blasting device

Abstract

The invention relates to the technical field of sand blasting equipment, and discloses a mushroom head assembly of a water mist sand blasting device. The mushroom head assembly comprises a flange anda mushroom-shaped top head, wherein the flange is provided with a sand inlet in the middle, the mushroom-shaped top head is positioned below the sand inlet hole of the flange and is used for opening and closing a sand inlet hole, and the lower end of the flange is connected with a support; the support comprises a positioning ring and a guide rod, wherein the positioning ring is connected with theflange, the guide rod is vertically arranged below the positioning ring, a plurality of rib plates which are distributed at intervals in the circumferential direction are connected between the positioning ring and the guide rod, the mushroom-shaped top head sleeves the guide rod and can move up and down along the guide rod, an outer conical surface is arranged at the upper part of the mushroom-shaped top head, the sand inlet hole is an inner conical hole, and when the mushroom-shaped top head moves upwards and abuts against the inner conical hole of the flange, the outer conical surface is matched with the inner conical hole. According to the mushroom head assembly, the installation precision of a mushroom top valve on the sand blasting device is improved, and the service reliability of sand blasting equipment is improved.

Description

technical field [0001] The invention relates to the technical field of sandblasting equipment, in particular to a mushroom head assembly of a water mist sandblasting device. Background technique [0002] The surface of steel structural parts usually needs to be blasted with sand blasting equipment before painting to remove rust and other attachments on the surface. There are three main types of blasting equipment: [0003] The first is dry sandblasting equipment, which uses compressed air as the power source to spray sand onto the surface of the workpiece for rust removal. When dry sandblasting equipment is used for sandblasting, the dust pollution is relatively large, which will have a relatively large negative impact on the surrounding environment. [0004] The second type is wet sand blasting equipment, which uses the negative pressure siphon effect of the water jet ejected from the high-pressure water cleaning machine (compressed air positive pressure can also be used)...

AI Technical Summary

Problems solved by technology

[0007] But above-mentioned water mist abrasive blasting machine is not perfect enough yet, and its main problem is:

However, the assembly requirements of the mushroom head are relatively high, and it needs to be completely concentric with the middle flange of the conical head. The structure of the above-mentioned guide device cannot guarantee its high concentricity requirements, and with the long-time switch of the mushroom head, it is easy to cause the bending of the transverse tube Deformation, which in turn prevents the abrasive mixing cylinder from being completely sealed

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