Injection mold for flange of large rubber strip

Abstract

The invention discloses an injection mold for a flange of a large rubber strip. The injection mold comprises an upper die (1) and a lower die (2). The upper die adopted by the injection mold is provided with a C-shaped wedge block, a D-shaped wedge block, a sprue and an upper die cavity; the lower die consists of a support plate, an end positioning block, a connecting rod, a cross bar, a blank core, a side sliding block, a spring, an end sliding block, an oil cylinder and a substrate; the upper die is positioned above the lower die; when the upper die and the lower die are closed, a blank sleeves the blank core; the C-shaped wedge block and the D-shaped wedge block of the upper die are correspondingly inserted into a C-shaped wedge slot and a D-shaped wedge slot for splicing and pushing the side sliding block and the end sliding block to the outer wall of the blank and locking; the upper die cavity of the upper die, a side die cavity of the side sliding block, an end core of the end sliding block and the outer wall of the blank define a die cavity for injection connected molding of the flange; and during application, by adopting the technical scheme of injection connected molding of the flange at the side wall of the blank by adopting a vertical injection molding machine, the production of the large rubber strip achieves the aims of improving the efficiency, reducing the cost, improving working conditions and eliminating the hazard to health and pollution to the environment.

Description

technical field [0001] The invention relates to an injection mold, in particular to an injection mold for sealing end joints of large rubber strips used for injection molding, connecting and forming end joint corners of large rubber strips of auto parts. Background technique [0002] instructions, see Figure 10 , Figure 11 , the large rubber strip is a kind of auto parts, the large rubber strip is a hollow, strip-shaped tubular, thin-walled soft rubber-plastic product, and the side wall of the large rubber strip is provided with a flange for application connection called End-sealing angle; the blank of the large rubber strip is an extruded and cut rubber-plastic product, hereinafter referred to as the blank; the end-sealing angle is an injection-molded rubber-plastic product; [0003] The prior art adopts the gluing method, that is, an adhesive is used to glue and connect the sealing corner and the blank to form a large rubber strip; the gluing method has the high cost of...

AI Technical Summary

Problems solved by technology

[0003] The prior art adopts the gluing method, that is, an adhesive is used to glue and connect the sealing corner and the blank to form a large rubber strip; the gluing method has the high cost of the adhesive, and requires glue coating, Pre-drying, pressing, and drying processes have low efficiency, solvent volatilization and diffusion pollute the environment, and poor working conditions are harmful to the health of employees. Therefore, the existing technology has problems and deficiencies such as high cost, low efficiency, harmful health, and polluting the environment.

Images