Air bag die and manufacturing method of air bag

Abstract

The invention discloses an air bag die which comprises an upper air bag die and a lower air bag die. The upper air bag die comprises a convex part and a concave part, and a slow bevel is arranged between the convex part and the concave part. A manufacturing method of an air bag comprises the following steps: placing a lower film and an upper film successively on the upper surface of the lower airbag die and then placing the upper air bag die on the upper surface of the upper film; after placing the upper film and the lower film on the air bag die, hot melting and laminating the upper and lower TPU films by means of a high frequency fusion machine to manufacture a basic air bag with an air outlet pipe joint left; embracing a conduit by a hot melt adhesive in two turns, putting the conduitin the air outlet pipe joint of the basic air bag, and then putting the basic air bag and the conduct in the air bag die to be holt-melted and sealed, wherein the slow bevel is arranged between the convex layer and the concave layer of the upper die, so that a wrinkling condition after the upper film and the lower film are connected is reduced effectively.

Description

technical field [0001] The invention relates to the technical field of airbag manufacturing methods, in particular to an airbag mold and an airbag manufacturing method. Background technique [0002] Expandable articles of manufacture or bladders for inflatable articles of manufacture have been known for decades, conventionally heated brass molds are relatively expensive to tool, and RF welding techniques are extremely sensitive, requiring the film to be thick enough to prevent However, this will cause the rupture of the bladder, which will increase the production cost, and when the bladder is produced in the prior art, the upper film and the lower film will wrinkle after being connected, making it complicated to assemble into manufactured items such as footwear . [0003] Therefore, how to provide a relatively low-cost capsule production method in which wrinkling occurs after the upper and lower membranes are connected has become a key point to be solved at present. Conte...

AI Technical Summary

Problems solved by technology

[0002] Expandable articles of manufacture or bladders for inflatable articles of manufacture have been known for decades, the tooling of conventionally heated brass molds is relatively expensive, and the RF welding technique is extremely sensitive requiring the film to be thick enough to prevent However, this will cause breakage of the bladder and increase the production cost, and when the bladder is produced in the prior art, the upper film and the lower film will wrinkle after being connected, complicating its assembly into manufactured items such as footwear

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