| 摘要 |
A mold making machine the production of flaskless molds is made up of a sand supply container, with a blowing and squeezing grid at its lower, that is able to be moved vertically, a hollow pattern plate mount, valve and duct means connected with the said mount, and drag and cope flasks that are fitted around said sand container for vertical motion in relation thereto. At the start of a mold producing operation the drag flask is placed under the cope flask on the container. This design of the molding machine enables it to be used for the alternate production of flaskless drags and copes which are made into block molds.
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