From the structural point of view, the semi-closed filling die combines the advantages of an open filling die and a closed filling die.
Enclosed-rubber-mould
From the structural point of view, the semi-closed filling die combines the advantages of an open filling die and a closed filling die.
The figure above shows a semi-closed V-ring seal. It can be seen that the inner ring of the V-ring die is closed first, similar to the closed type, while the other side (outer ring) is open and open, until The stamper is closed when it is completely closed. This structure, which has both a closed portion and an open portion, is called a semi-closed type.
The continuation of the mold cavity is larger than the cavity. At this time, the pressure of the press is pressed on the rubber, and a part of it acts on the enlarged pressure belt. The compactness of the obtained product is between closed and open pressure. Between the products of the mold, the structure is therefore semi-closed.
When the product is complicated, the semi-closed stamper (compared with the closed stamper) is easy to process, the filler and the take-up product are also convenient, and the feeding amount does not have to be as precise as the closed stamper, but in the pressure belt There is a rubber edge. If the fluidity of the rubber is poor, the rubber edge is thicker, which affects the appearance and dimensional accuracy.
The semi-closed filling mold structure has better exhaust performance, and the density of the product parts is also relatively high, the rubber material loss is small, the utilization rate is high, and the mold opening is convenient. This type of mold is suitable for the molded production of rubber molded parts of the inner fabric.
The mold manufacturing process is better, and the surface roughness of the cavity is easily reduced, which is very advantageous for improving the apparent quality of the product parts.
What are the characteristics of the semi-closed filling die?
2019年3月3日
Rubber Molds FAQs
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Editor
From the structural point of view, the semi-closed filling die combines the advantages of an open filling die and a closed filling die.
From the structural point of view, the semi-closed filling die combines the advantages of an open filling die and a closed filling die.
The figure above shows a semi-closed V-ring seal. It can be seen that the inner ring of the V-ring die is closed first, similar to the closed type, while the other side (outer ring) is open and open, until The stamper is closed when it is completely closed. This structure, which has both a closed portion and an open portion, is called a semi-closed type.
The continuation of the mold cavity is larger than the cavity. At this time, the pressure of the press is pressed on the rubber, and a part of it acts on the enlarged pressure belt. The compactness of the obtained product is between closed and open pressure. Between the products of the mold, the structure is therefore semi-closed.
When the product is complicated, the semi-closed stamper (compared with the closed stamper) is easy to process, the filler and the take-up product are also convenient, and the feeding amount does not have to be as precise as the closed stamper, but in the pressure belt There is a rubber edge. If the fluidity of the rubber is poor, the rubber edge is thicker, which affects the appearance and dimensional accuracy.
The semi-closed filling mold structure has better exhaust performance, and the density of the product parts is also relatively high, the rubber material loss is small, the utilization rate is high, and the mold opening is convenient. This type of mold is suitable for the molded production of rubber molded parts of the inner fabric.
The mold manufacturing process is better, and the surface roughness of the cavity is easily reduced, which is very advantageous for improving the apparent quality of the product parts.