Air bag die and method for machining air bag by adopting same

Abstract

The invention belongs to the technical field of dies, and in particular relates to an air bag die and a method for machining an air bag by adopting the air bag die. The invention provides an air bag die and method for machining the air bag, which not only can ensure air bag forming rate, and prolong the service life of the air bag, but also can improve the air bag production efficiency. The air bag die consists of a lower die, a middle die and an upper die, wherein a cone frustum-shaped bump is arranged in the middle of the lower die, and an air bag iron core adaptive to the shape of a depressed center at the top of the cone frustum-shaped bump is arranged at the center of the lower die; a middle core is arranged above the lower die, a cylindrical cavity with an upward opening is arranged in the middle of the middle core, and a through hole is arranged at the bottom of the cavity and internally provided with a connecting bolt; the middle die is positioned above the middle core, the upper part of the middle core penetrates through the center of the middle die, and a glue flowing channel is arranged on the outer edge of the lower die corresponding to the bottom of an outer arc surface of the middle core; and the upper die is positioned above the middle die, and a middle jacket is arranged between the inner side wall of the hollow center of the upper die and an annular bushing part at the upper part of the middle core.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a mold for processing an airbag and a method for processing an airbag by using the mold. Background technique [0002] Diaphragm pump is the core equipment for long-distance pipeline transportation of solid-liquid two-phase medium. Its main components include: power transmission system, power end, hydraulic end, hydraulic control system, feed pressure compensation system, discharge pressure compensation system, and electric control system. The pressure compensation system is divided into two forms: pressure compensation tank and nitrogen bag. [0003] Diaphragm pump adopts spherical preloaded nitrogen bag. Its main role is to stabilize pressure and flow. The nitrogen bag is an auxiliary device that uses the compression and expansion of the gas to store or release a part of the liquid to reduce the vibration of the pipeline system and the unevenness of the flow ...

AI Technical Summary

Problems solved by technology

[0012] The mold disadvantages of this structure are: (1) The mold manufacturing is complicated

[0013] (2) The molding process is cumbersome

[0014] (3) Rubber burrs are easily formed at the part of the mold split core, which affects the appearance and quality of the product

And during the vulcanization process, the airtightness of the airbag mold is reduced, and the vulcanization pressure is reduced by dividing the core, so that the density of the airbag is reduced

[0015] (4) Airbag molding effects are uneven

Because the airbag mold has been used for a long time, assembled repeatedly, and after repeated thermal expansion and contraction, the assembly surface of the split core component and other assembly surfaces may not fit as required. At this time, the operator still uses the same amount of rubber Casting; after the rubber is heated by the vulcanizer into glue, the glue will flow into each deformed assembly surface, resulting in insufficient airbag glue volume and uneven wall thickness, which directly affects the inner quality of the airbag and reduces the service life of the airbag

[0016] (5) Unable to detect the inner quality of the airbag

Manufacturing defects such as uneven wall thickness, shrinkage cavities, and shrinkage porosity generated during the production process of the airbag cannot be detected

[0017] (6) The production efficiency of the product is low, and the labor intensity of the mold user is relatively high

Since the split core assembly needs to be disassembled repeatedly during the airbag manufacturing process, the operator needs to tighten and loosen the same bolt 40 times when making an airbag, and each solid split core itself has a weight of about 40kg , all of which increase the labor intensity of the operator invisibly, thus reducing the efficiency of airbag production

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