CN220052747U

CN220052747U - Injection molding die

Info

Publication number: CN220052747U
Application number: CN202320811539.XU
Authority: CN
Inventors: 赵僧文; 李辉平
Original assignee: Pinghu Bajun Mould Manufacturing Co ltd
Current assignee: Pinghu Bajun Mould Manufacturing Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-11-21
Anticipated expiration: 2033-04-06

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection molding mold, which comprises the following components: the die comprises a male die, a female die and a moving assembly, wherein a plurality of groups of rectangular array die cavities are formed in the male die and the female die, one side of each group of die cavities is communicated with an insert groove, a core bar sliding groove is formed in the upper side of each die cavity, the core bar sliding groove penetrates through each group of insert grooves, the moving assembly comprises a plurality of groups of inserts, core bars and moving blocks, the inserts are arranged in the insert grooves in a sliding mode, protruding rods extending into the die cavities are arranged at one ends of the inserts, the core bars are arranged in the core bar sliding grooves in a sliding mode, the inserts are fixed on the core bars, the moving blocks are connected with the end portions of the core bars, the moving blocks are arranged in the lower die in a sliding mode, a plurality of groups of inserts are driven to serve as a moving assembly to replace sliding blocks which are consistent with the number of products in the prior art, the moving assembly plays a role of the sliding blocks, and the space between the products can be reduced to reduce the size of the die frames, and the die cost is reduced.

Description

Injection molding die

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection molding mold.

Background

In order to improve production efficiency and reduce production cost when the plastic rotating parts are produced by the company, a plurality of plastic rotating parts are synchronously produced on a single die, but the die is smaller because of products, and the products are provided with a back-off structure, so that a slide block is required to loose core in the injection molding process of the back-off structure, if each product is removed to make one slide block, the space between the products is large because of the relation of the slide blocks, and the die carrier is also large, so that the production cost is increased. Therefore, in order to solve the defects in the prior art, an injection molding mold capable of reducing the product space and the size of the mold frame is required to be designed.

Disclosure of Invention

The utility model provides an injection molding die for solving the problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme: an injection molding mold comprising: go up die bedplate, go up mould, lower die bedplate and moving assembly, go up the mould setting in upper die bedplate lower extreme, the lower mould sets up in lower die bedplate upper end, be equipped with the sprue that the mould was gone up in the intercommunication in the upper die bedplate, the terrace die that the mould inside set up is gone up in the sprue lower extreme intercommunication, the die that the lower mould inside set up sets up in the terrace die below, all be equipped with the die cavity of a plurality of rectangular array in terrace die and the die, every group die cavity one side intercommunication has the mold insert groove, the die cavity upside is equipped with the core bar spout, the core bar spout runs through every group mold insert groove setting, moving assembly includes a plurality of groups mold insert, core bar and movable block, the mold insert slides and sets up in the mold insert inslot, mold insert one end is equipped with the protruding pole that extends to in the die cavity, the core bar slides and sets up in the spout, the mold insert is fixed in the core bar, the movable block links to each other with the core bar tip, the movable block slides and sets up in the lower mould.

Further improvement, be equipped with the back-off chamber in the die cavity, be equipped with the semicircle groove with back-off chamber intercommunication in the mold insert inslot, the mold insert front end is equipped with the sliding part that is located the semicircle inslot, the protruding pole sets up in sliding part front end, just the protruding pole sets up in the back-off intracavity.

Further improvements are provided with two sets of said moving assemblies.

According to a further improvement, a positioning block is arranged at the end part of the female die, a limiting groove is formed in the end part of the positioning block, and the core rod is located in the limiting groove.

Further improved, the positioning block is connected with the female die through a second connecting bolt.

According to further improvement, pouring runners are arranged in the male die and the female die, the centers of the pouring runners are communicated with the pouring runners, and two sides of the pouring runners are respectively communicated with each group of die cavities.

Compared with the prior art, the injection molding die has the beneficial effects that:

the core bar is driven to move in the core bar chute by driving the moving block, the core bar drives the plurality of groups of inserts to slide in the insert grooves for a very small distance, so that the convex rod at the front end of each group of inserts is separated from the back-off of the product, a plurality of products are smoothly demoulded, and the injection molded product has a back-off structure; the plurality of groups of inserts are driven by the single movable core rod to serve as a moving component to replace sliding blocks which are consistent with the products in the existing scheme, the moving component plays a role of the sliding blocks, meanwhile, the space between the products can be reduced to reduce the size of the die frame, and the die cost is reduced.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model

FIG. 2 is a schematic view showing the internal view angle of the male die according to the present utility model

FIG. 3 is a schematic view showing the internal view angle of the female die

FIG. 4 is a schematic view of a partial structure of the present utility model

FIG. 5 is a schematic view of a partial enlarged view of the present utility model

In the figure, 1-female die, 11-die cavity, 111-back-off cavity, 12-insert groove, 121-semicircular groove, 13-core bar chute, 2-moving assembly, 21-insert, 211-convex rod, 212-sliding part, 22-core bar, 23-moving block, 3-lower die, 4-positioning block, 41-limit groove, 42-connecting bolt two, 6-upper die seat plate, 61-pouring channel, 611-pouring runner, 62-male die, 7-upper die, 8-lower die and 9-lower die seat plate.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is further described below with reference to the examples and the accompanying figures 1 to 5.

Example 1

An injection molding mold, comprising: the die comprises an upper die holder plate 6, an upper die 7, a lower die 8, a lower die holder plate 9 and a moving assembly 2, wherein the upper die 7 is arranged at the lower end of the upper die holder plate 6, the lower die 8 is arranged at the upper end of the lower die holder plate 9, a pouring channel 61 communicated with the upper die 7 is arranged in the upper die holder plate 6, a male die 62 arranged in the upper die 7 is communicated with the lower end of the pouring channel 61, a female die 1 arranged in the lower die 8 is arranged below the male die 62, a plurality of groups of rectangular array die cavities 11 are respectively arranged in the male die 62 and the female die 1, each group of rectangular array die cavities 11 is communicated with an insert groove 12 at one side of each die cavity 11, a core bar chute 13 is arranged at the upper side of each die cavity 11, each core bar chute 13 penetrates through each group of insert grooves 12, the moving assembly 2 comprises a plurality of groups of inserts 21, a core bar 22 and a moving block 23, each insert 21 is arranged in the insert grooves 12 in a sliding manner, one end of each insert 21 is provided with a male bar 211 extending into the die cavity 11, each core bar 22 is arranged in the core bar 13 in the corresponding core bar chute 13 in the corresponding sliding manner, each insert 21 is fixed on one end of the insert 22, and each core bar 22 is connected with the core bar 22 in the die cavity 11 in the corresponding moving assembly 3. The inside of the die cavity 11 is provided with a back-off cavity 111, the inside of the insert groove 12 is provided with a semicircular groove 122 communicated with the back-off cavity 111, the front end of the insert 21 is provided with a sliding part 212 positioned in the semicircular groove 122, the front end of the sliding part 211 is provided with a convex rod 211, and the convex rod 211 is arranged in the back-off cavity 111.

As shown in fig. 1 to 5, the use principle of the present utility model is as follows: when the mold is required to be demolded after injection molding is completed, the moving block 23 is driven to drive the core rod 22 to move in the core rod chute 13, the core rod 22 drives the plurality of groups of inserts 21 to slide in the insert grooves 12 for a very small distance, so that the convex rods 211 at the front ends of each group of inserts 21 are separated from the back-off of the products, namely the convex rods 211 slide out from the back-off cavity 111, the sliding part 212 moves from the semicircular groove 122 into the insert grooves 12, a plurality of products are smoothly demolded, and the injection molded products have a back-off structure.

The movable assembly 2 is symmetrically arranged in two groups about the center, eight groups of products can be formed in one step in the die, the production efficiency is high, and the cost is effectively reduced.

The plurality of groups of inserts are driven by the single movable core rod to serve as a moving component to replace sliding blocks which are consistent with the products in the existing scheme, the moving component plays a role of the sliding blocks, meanwhile, the space between the products can be reduced to reduce the size of the die frame, and the die cost is reduced.

As a further preferred embodiment, in order to improve the stability of the movement of the core 22, the end of the die 1 is provided with a positioning block 4, the end of the positioning block 4 is provided with a limiting groove 41, the core 22 is located inside the limiting groove 41, and the positioning block 4 is connected with the die 1 through a second connecting bolt 42, so that the core 22 is prevented from jumping in the vertical direction, and the height of the protruding rod 211 on the insert 21 is ensured to be consistent.

As a further preferred embodiment, in order to improve the uniformity of injection molding of the product, the male mold 62 and the female mold 1 are provided with pouring channels 611, the center of each pouring channel 611 is communicated with the pouring channel 61, and two sides of each pouring channel 611 are respectively communicated with each group of mold cavities 11.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. An injection molding die, comprising: go up die bedplate, go up mould, lower die bedplate and moving assembly, go up the mould setting in upper die bedplate lower extreme, the lower mould sets up in lower die bedplate upper end, be equipped with the sprue that the mould was gone up in the intercommunication in the upper die bedplate, the terrace die that the mould inside set up is gone up in the sprue lower extreme intercommunication, the die that the lower mould inside set up sets up in the terrace die below, all be equipped with the die cavity of a plurality of rectangular array in terrace die and the die, every group die cavity one side intercommunication has the mold insert groove, the die cavity upside is equipped with the core bar spout, the core bar spout runs through every group mold insert groove setting, moving assembly includes a plurality of groups mold insert, core bar and movable block, the mold insert slides and sets up in the mold insert inslot, mold insert one end is equipped with the protruding pole that extends to in the die cavity, the core bar slides and sets up in the spout, the mold insert is fixed in the core bar, the movable block links to each other with the core bar tip, the movable block slides and sets up in the lower mould.

2. The injection molding die according to claim 1, wherein an undercut cavity is formed in the die cavity, a semicircular groove communicated with the undercut cavity is formed in the insert groove, a sliding portion located in the semicircular groove is arranged at the front end of the insert, the protruding rod is arranged at the front end of the sliding portion, and the protruding rod is arranged in the undercut cavity.

3. An injection mold as claimed in claim 1 wherein the moving assembly is provided with two sets.

4. The injection molding die of claim 1, wherein a positioning block is arranged at the end of the female die, a limiting groove is arranged at the end of the positioning block, and the core rod is positioned in the limiting groove.

5. The injection molding die of claim 4, wherein the positioning block is connected to the female die by a second connecting bolt.

6. The injection molding die according to claim 1, wherein pouring runners are arranged in the male die and the female die, the centers of the pouring runners are communicated with the pouring runners, and two sides of the pouring runners are respectively communicated with each group of die cavities.