CN-224210447-U - Injection mold for secondarily ejecting injection molding product

CN224210447UCN 224210447 UCN224210447 UCN 224210447UCN-224210447-U

Abstract

The utility model discloses an injection mold for secondarily ejecting an injection product, which comprises a lower mold plate, wherein a lower mold core is arranged in the lower mold plate, a lower mold insert is arranged in the lower mold core, a notch part is arranged at the lower part of the lower mold core, a step part is arranged at the lower part of the lower mold insert, the step part is positioned in the notch part, a gap is reserved between the upper surface of the step part and the upper surface of the notch part, an upper ejector plate is arranged below the lower mold plate, a lower ejector plate is arranged below the upper ejector plate, a first T-shaped groove is arranged on the lower ejector plate, a limit pull rod is vertically arranged on the lower mold insert, a first protruding part at the lower end of the limit pull rod is positioned in the first T-shaped groove, an ejector pin is vertically arranged on the upper ejector plate, a second T-shaped groove is arranged on the upper ejector plate, a second protruding part at the lower end of the ejector pin is positioned in the second T-shaped groove, and the upper end of the ejector pin penetrates through the lower mold plate, the lower mold core and the lower mold insert. The injection mold product of the secondary ejection injection product is less in stress during mold opening ejection, and the product is not damaged during ejection.

Inventors

GE JINMING
GE JINSHAN

Assignees

苏州和瑞机械科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250603

Claims (4)

1. The utility model provides an injection mold of ejecting injection product of secondary, includes the lower bolster, be provided with the lower mould benevolence in the lower bolster, its characterized in that, be provided with the lower mould mold insert that can float from top to bottom in the lower mould benevolence, one side that the lower part of lower mould benevolence is close to the lower mould mold insert is provided with the notch, one side that the lower part of lower mould mold insert is close to the lower mould benevolence is provided with horizontal convex step portion, the step portion is located the notch, have the clearance between the upper surface of step portion and the upper surface of notch, the below of lower bolster is provided with the thimble board, the below of going up the thimble board is provided with down the thimble board, be provided with first T type groove on the thimble board, vertical being provided with the gag lever post on the lower mould mold insert, gag lever post runs through last thimble board and thimble board, the lower extreme of gag lever post is provided with the radial convex first bulge of level, first bulge portion is located first T type inslot, the upper end and lower mould mold insert fixed connection of gag lever post, the second top is provided with the radial bulge of second thimble board, the second thimble is located the radial top of second thimble board.
2. The injection mold for the secondary ejection of an injection molded product according to claim 1, wherein an external thread is provided on an outer circumferential surface of an upper end of the limit pull rod, a threaded hole is provided on the lower mold insert, and an upper end of the limit pull rod is connected with the lower mold insert through threads.
3. The injection mold of claim 2, wherein the upper end face of the ejector pin is flush with the top surfaces of the lower mold insert and the lower mold insert when the lower mold insert is at the lowest position in the lower mold plate.
4. An injection mold for a two-shot injection molded product according to claim 3, wherein a gap between an upper surface of the step portion and an upper surface of the notched portion is 3-8mm.

Description

Injection mold for secondarily ejecting injection molding product Technical Field The utility model relates to an injection mold for secondarily ejecting an injection product, and belongs to the technical field of injection product production molds. Background Many plastic products's production adopts injection mold to produce, carries out the product shaping through injection mold, needs the mould opening to take out the product after product injection molding, but to some products that structural feature is more, the product receives the great holding power of mould when the mould opening is ejecting that finishes the product injection molding, can't normally drawing of patterns or force the drawing of patterns to damage the product easily, consequently need consider reasonable design mould structure to the convenience is ejecting of injection molding product, can not destroy the product. Disclosure of utility model The utility model mainly solves the technical problem of providing an injection mold for secondarily ejecting an injection product, wherein the injection mold is small in stress when the product is ejected during mold opening and ejection, and the product is not damaged during ejection. In order to solve the technical problems, the injection mold for secondarily ejecting an injection product comprises a lower mold plate, a lower mold core is arranged in the lower mold plate, a lower mold insert capable of floating up and down is arranged in the lower mold core, a notch is arranged at one side, close to the lower mold insert, of the lower mold core, a horizontally protruding step is arranged at one side, close to the lower mold core, of the lower mold insert, a gap is formed between the upper surface of the step and the upper surface of the notch, an upper ejector pin plate is arranged below the lower mold plate, a lower ejector pin plate is arranged below the upper ejector pin plate, a first T-shaped groove is arranged on the lower ejector pin plate, a limit pull rod is vertically arranged on the lower mold insert, the limit pull rod penetrates through the upper ejector pin plate and the lower ejector pin plate, a first horizontally protruding portion is arranged at the lower end of the limit pull rod, the first protruding portion is positioned in the first T-shaped groove, the upper end of the first ejector pin plate is fixedly connected with the upper ejector pin plate and the lower mold insert, a second ejector pin plate is arranged at the upper end of the second ejector pin plate, and the upper end of the second ejector pin plate is vertically arranged in the T-shaped groove. Preferably, an external thread is arranged on the peripheral surface of the upper end of the limiting pull rod, a threaded hole is arranged on the lower die insert, and the upper end of the limiting pull rod is connected with the lower die insert through threads. Preferably, when the lower die insert is at the lowest position in the lower die plate, the upper end face of the ejector pin is flush with the top faces of the lower die core and the lower die insert. Preferably, the gap between the upper surface of the step portion and the upper surface of the notched portion is 3-8mm. The injection mold for the secondary ejection injection product has the beneficial effects that after the injection molding of the product, a small amount of the primary product is ejected, part of holding force on the injection product is released, and then the product is ejected, so that the product cannot be subjected to large holding force in the whole ejection process, the product can be prevented from being damaged due to large direct ejection force, the injection molded product meets the appearance requirement and the product function requirement, and the mold ejection structure is of a mechanical structure, is simple and stable, can meet long-time production, is not easy to damage, has low production cost, is simple to process and is easy to maintain in the later stage. Drawings For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein: Fig. 1 is a schematic structural view of an injection mold for a two-shot injection molding product according to the present utility model. Detailed Description The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the