Intermediate sand bucket

Abstract

The invention relates to an intermediate sand bucket, comprising a sand bucket main body, wherein a valve is arranged at the lower part of the sand bucket main body; a cover body is arranged at the upper part of the sand bucket main body; a closed hollow cavity for storing resin sand is formed by the sand bucket main body through the valve and the cover body; and a humidifying device is connected with the inside of the sealed hollow cavity. According to the intermediate sand bucket, one cover body is additionally arranged at the upper part of the sand bucket main body so as to guarantee that when some resin sand which is sensitive to humidity, particularly inorganic resin sand, enters a jetting barrel of a core making machine, the corresponding humidity requirement is guaranteed and is not influenced by external factors including environment, time and the like; and therefore, the requirement of a core making process is met and the core making can be finished at the best state.

Description

technical field [0001] The invention relates to a core-making auxiliary device, in particular to an intermediate sand bucket. Background technique [0002] The middle sand hopper is a transitional storage device for storing the resin sand mixed by the sand mixer before it is added to the core making machine. Every time the sand mixer puts the mixed resin sand into this hopper, when the core making machine needs sand, this The valve at the lower part of the bucket is opened to add the resin sand into the barrel of the core making machine. like figure 1 The shown intermediate sand bucket includes a sand bucket body 1', the upper part of the sand bucket body 1' communicates with the sand outlet 20' of the sand mixer 2', and the lower part of the sand bucket body 1' communicates with the barrel 3'. The inlets are connected, and the lower part of the sand bucket body 1' is provided with a valve 4'. Therefore, the current situation is that the lower part of the middle sand hopp...

AI Technical Summary

Problems solved by technology

Therefore, the current situation is that the lower part of the middle sand hopper is closed by a valve, but the upper part is open from the inlet of the sand mixer, that is, it is in contact with the air; in addition, the resin stored in the middle sand hopper It takes a while for sand to be added to the core making machine barrel, and the sand mixer will continue to add sand to the middle sand bucket according to the needs of the core making machine. If the resin sand (such as inorganic resin sand) stored at this time needs to be Good humidity can ensure the core-making effect, then long-term contact with drier air will take away the moisture of the core-making sand and finally affect the core-making effect; moreover, the opening of the upper part of the middle sand bucket will make the sand A certain humidity-sensitive resin sand in the bucket loses moisture, which affects the execution effect

Images