A combined sand box structure
A combined type and sand box technology, which is applied in the direction of mold boxes, casting molding equipment, metal processing equipment, etc., can solve the problems of increasing casting costs, high cost of no-setting resin sand, waste of no-setting resin sand, etc., to reduce casting costs , The effect of reducing the amount of sand used
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[0015] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0016] Such as figure 1 and figure 2 A combined sand box structure shown includes several shrouds 1, and each shroud is connected end to end to form a complete sand box cavity wall, such as image 3 As shown, the two connecting ends of one of the two adjacent coaming plates are provided with pin holes 2 and connecting grooves 3 passing through the pin holes, and the two connecting ends of the other coaming plate are provided with connecting bosses 4, Through the connecting hole 5 of the connecting boss, the connecting boss snaps into the connecting groove and is connected by the positioning pin 6. The connecting end of the coaming is also provided with a threaded hole 7 communicating with the pin hole and the connecting hole, and the side of the positioning pin is provided with A number of through holes 8, the through holes are long slotted holes,...
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