CN205887980U - Casting psammitolite loose piece ejecting device - Google Patents

Abstract

The utility model discloses a casting psammitolite loose piece ejecting device, including last roof, lower roof, go up the roof and be equipped with the loose piece down between the roof, the inside arch in border of roof both sides forms opposite flange down. Use casting psammitolite loose piece ejecting device, can avoid the drop when taking the psammitolite out of smoothly through setting up the flange, reduced the psammitolite rejection rate, improved production efficiency.

Description

Casting sand core loose piece ejecting device

Technical field

This utility model is related to a kind of casting mould, especially a kind of casting sand core loose piece ejecting device.

Background technology

Existing sand core for casting completes on self-control core making machine, and most of product core mold needs to make lives Block, in core production process, because the core loose piece mode of taking out of is to drive by sand mold to release, this mode of taking out of often occurs Drop phenomenon, leads to the high problem of core percent defective, very affects production efficiency.

Content of the invention

The purpose of this utility model is to provide a kind of casting sand core loose piece ejecting device, reduces core percent defective, improves labor Dynamic production efficiency.

In order to solve above-mentioned technical problem, the technical solution of the utility model is as follows: casting sand core loose piece ejecting device, bag Include upper plate, lower roof plate, be provided with loose piece between upper plate and lower roof plate it is characterised in that: the edge of described lower roof plate both sides to Internal projection, forms the flange of opposition.

Improvement to technique scheme: the corner of the inner side of described flange is curved.

Beneficial effect:

Using casting sand core loose piece ejecting device described in the utility model, can be shaked out in smooth band by setting up flange Avoid drop while core, reduce core percent defective, improve production efficiency.The corner of the inner side of flange is curved, in band When going out core, do not result in the problem of drop, improve the yield rate of core further.

Brief description

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the partial enlarged drawing of Fig. 1.

Specific embodiment

This utility model casting sand core loose piece ejecting device as shown in Figure 1 and Figure 2, including upper plate 1, lower roof plate 2, on It is provided with loose piece 3 between top board 1 and lower roof plate 2, the edge of described lower roof plate 2 both sides is inwardly protruding, form the flange 4 of opposition, convex The corner of the inner side of edge 4 is curved.

Finally it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this Utility model, although being described in detail to this utility model with reference to the foregoing embodiments, for those skilled in the art For, it still can be modified to the technical scheme described in foregoing embodiments, or to wherein some technical characteristics Carry out equivalent.All of the present utility model spirit and principle within, any modification, equivalent substitution and improvement made etc., all Should be included within protection domain of the present utility model.

Claims (2)

1. casting sand core loose piece ejecting device, including upper plate, lower roof plate, is provided with loose piece between upper plate and lower roof plate, and it is special Levy and be: the edge of described lower roof plate both sides is inwardly protruding, form the flange of opposition.

2. casting sand core loose piece ejecting device according to claim 1 it is characterised in that: the corner of the inner side of described flange Curved.