Screw pump screw rod lining die and using method thereof
A screw pump and screw technology, which is applied in the field of screw lining molds of screw pumps, can solve the problems of reducing work efficiency, increasing leakage flow, and screw stuck, and achieving the effects of reducing processing costs, avoiding gaps, and improving accuracy.
Active Publication Date: 2018-12-21
SHENGZHOU BODA PUMP IND CO LTD
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Problems solved by technology
In this way, the gap between the screw and the screw, and between the screw and the inner wall of the pump will gradually increase with the gradual wear of the two, which increases the leakage flow when the transported material advances. At the same time, when the screw pump transports impurities When the content of the liquid is high, some hard impurities will easily block the screw, thus reducing the working efficiency
Method used
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Embodiment
[0033] Embodiment: a kind of screw pump screw rubber lining mold, such as Figure 1-Figure 14As shown, it includes an upper mold, a middle mold assembly, a bottom mold and a mold core. The center of the lower surface of the bottom mold is provided with a mold core groove, and the bottom of the mold core groove is provided with a mold core that runs through the bottom mold. Through holes, the upper surface of the bottom mold is provided with bottom mold positioning pins and colloid flow grooves respectively, and the mold core is stepped, including a mold core substrate, a supporting cylinder and a working cylinder. The mold core substrate, supporting cylinder and The working cylinders are connected sequentially from left to right to form a whole. The core base plate and the core groove match, and the core base plate and the core groove are fixed by screws. The support cylinder and the core through hole are connected. matching, the side wall of the working cylinder is provided w...
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The invention relates to a screw pump screw rod lining die and a using method thereof, and belongs to the technical field of screw pump screw lining glue. The screw pump screw rod lining die comprisesan upper mold assembly, a middle mold assembly, a bottom mold and a mold core, the middle mold assembly comprises a first middle mold, a plurality of second middle molds and a third middle mold; a first cavity is formed in the center of the first middle mold, second cavities are formed in the center of the second middle molds, and a third cavity is formed in the center of the third middle mold. The middle mold assembly is divided into a first middle mold, a plurality of second middle molds and a third middle mold, the machining of the middle mold assemblies by a machine tool is facilitated, the machining cost of the middle mold assembly is reduced, and the precision of the middle mold assembly is improved. When a pressure head of a pressure injection machine is pressed on the upper mold,the vertical pressure of the pressure injection machine can be fully utilized to enable all parts of the mold to be more tightly connected; when the mold is heated or injected, so that the gap betweenthe parts of the mold can be increased, the parts of the mold can be tightly attached to each other all the time through the vertical pressure of the pressure injection machine, so that the occurrence of a gap is avoided.
Description
technical field [0001] The invention belongs to the technical field of screw pump rubber lining, and in particular relates to a screw pump rubber lining mold and a use method thereof. Background technique [0002] The screw pump works by the rotating movement of the screws that mesh with each other. During the rotation of the screws, the material will have a certain friction with the screw and the inner wall of the pump, so that the working surface between the screw and the inner wall of the pump and the screw will gradually wear. , the diameter of the screw gradually decreases, and the diameter of the inner hole of the pump body gradually increases. In this way, the gap between the screw and the screw, and between the screw and the inner wall of the pump will gradually increase with the gradual wear of the two, which increases the leakage flow when the transported material advances. At the same time, when the screw pump transports impurities When the content of the liquid ...
Claims
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IPC IPC(8): B29C45/26B29C45/14B29L1/00
CPCB29C45/14549B29C45/2618B29L2001/00
Inventor 杨志程魏陈科魏本荣吴震寰
Owner SHENGZHOU BODA PUMP IND CO LTD