Double-color injection mold and injection molding method

Abstract

The invention provides a double-color injection mold and an injection molding method. The double-color injection mold comprises a first color front mold, a second color front mold and a rear mold, wherein the rear mold is provided with a positioning base, a rear positioning sleeve piece and a positioning ring, the positioning base protrudes out of the surface of the middle of the rear positioning sleeve piece, the positioning ring is arranged on the positioning base in a sleeving mode, and the outer side of the positioning ring is sleeved with annular screen cloth; the first color front mold is provided with a first color front positioning piece and four first color slide assemblies, the first color front positioning piece is connected with the positioning base, each first color slide assembly comprises a first color main slide block, a first color slide piece and a first color inclined guide rod, each first color inclined guide rod drives the corresponding first color main slide block to move in the direction perpendicular to the mold opening direction, the first color main slide blocks are fixedly connected with the first color slide pieces, the four first color slide pieces surround the periphery of the positioning ring, two first color mold cavities which are not communicated with each other are formed among the rear positioning sleeve piece, the positioning ring, the first color front positioning piece and the four first color slide pieces, and the end of the annular screen cloth extends into the first color mold cavities. The double-color injection mold is used for producing the screen cloth filter assembly and has the advantage of high production efficiency.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a two-color injection mold and an injection molding method. Background technique [0002] The vacuum cleaner contains a mesh filter assembly such as figure 1 and figure 2 As shown, the mesh filter assembly includes an annular mesh cloth, a first plastic ring, a second plastic ring, a third plastic ring and two magnet parts. Wherein, the annular mesh cloth is cotton cloth with filter holes, its texture is soft, the first plastic ring and the second plastic ring are respectively arranged at the upper and lower ends of the annular mesh cloth axial direction, and the materials of the first plastic ring and the second plastic ring and the same color, the third plastic ring is arranged on the inner side of the first plastic ring and is fixedly connected with the first plastic ring. Two installation holes are arranged on the inner side of the first plastic ring, and the tw...

AI Technical Summary

Problems solved by technology

Due to the soft material of the annular mesh, it is difficult to ensure that the annular mesh does not wrinkle during bonding. Once wrinkled, it is difficult to firmly connect the annular mesh with the entire surrounding wall of the plastic ring, resulting in a gap between the annular mesh and the plastic ring. Perforation, causing the product to fail

Therefore, the existing method relies on manual production, which has the disadvantages of low production efficiency and high product failure rate

Images