CN222571473U

CN222571473U - Combined injection mold

Info

Publication number: CN222571473U
Application number: CN202420518062.0U
Authority: CN
Inventors: 周浪
Original assignee: Suzhou Yu'anjun Precision Technology Co ltd
Current assignee: Suzhou Yu'anjun Precision Technology Co ltd
Priority date: 2024-03-18
Filing date: 2024-03-18
Publication date: 2025-03-07
Anticipated expiration: 2034-03-18

Abstract

The utility model discloses a combined injection mold, which is characterized in that a first spiral lug is formed after a first profiling block, a second profiling block, a first side swab and a second side swab are assembled, a second spiral lug is formed after a third profiling block, a fourth profiling block, a third side swab and a fourth side swab are assembled, spiral rotating cavities of products can be filled with the first spiral lug and the second spiral lug which are in central symmetry, and after injection molding is completed, the first side swab, the second side swab, the third side swab and the fourth side swab are respectively demolded.

Description

Combined injection mold

Technical Field

The utility model belongs to the technical field of molds, and particularly relates to a combined injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.

For some products with simple appearance, the existing injection molding production line is very efficient, but for some special-shaped products, such as products with spiral grooves on the outer surfaces, the spiral grooves also have back-off angles, and when the products are produced by injection molding, the products after injection molding cannot be demolded due to the back-off angles of the spiral grooves when the products are produced by injection molding by using a single mold core.

Disclosure of utility model

The utility model mainly solves the technical problem of providing a combined injection mold, the device forms a first spiral lug after the first profiling block, the second profiling block, the first side swab and the second side swab are assembled, forms a second spiral lug after the third profiling block, the fourth profiling block, the third side swab and the fourth side swab are assembled, the first spiral lug and the second spiral lug which are in central symmetry can fill a spiral rotating cavity of a product, and after injection molding is completed, the first side swab, the second side swab, the third side swab and the fourth side swab are respectively demolded.

In order to solve the technical problems, the utility model adopts a technical scheme that a combined injection mold comprises:

go up mould benevolence, lower mould benevolence, first side and take out unit, second side and take out unit and third side and take out the unit, first side take out unit with the unit is taken out to the second side is set up respectively go up the both sides of mould benevolence, the unit is taken out to the third side sets up the front side at last mould benevolence, goes up the mould benevolence and inlays and be equipped with mould mold insert group, lower mould benevolence inlays and is equipped with lower mould mold insert group, go up mould mold insert group lower mould mold insert group, first side take out unit, second side take out unit and third side take out the unit and can form the cavity of moulding plastics after module benevolence and lower mould benevolence are assembled, go up mould benevolence and lower mould benevolence are provided with the runner, the runner with the cavity of moulding plastics communicates with each other.

Preferably, the upper die insert set comprises a first upper die insert and a second upper die insert, the lower die insert set comprises a first lower die insert and a second lower die insert, the first upper die insert is provided with a first profiling block, the second upper die insert is provided with a second profiling block, the first lower die insert is provided with a third profiling block, and the second lower die insert is provided with a fourth profiling block.

Preferably, the first side drawing unit comprises a first side drawing piece and a second side drawing piece, and the second side drawing unit comprises a third side drawing piece and a fourth side drawing piece;

The first side drawing piece comprises a first side drawing block and a first side drawing piece, the second side drawing piece comprises a second side drawing block and a second side drawing piece, the third side drawing piece comprises a third side drawing block and a third side drawing piece, and the fourth side drawing piece comprises a fourth side drawing block and a fourth side drawing piece.

Preferably, the first profiling block, the second profiling block, the first side swab and the second side swab can form a first spiral lug after being assembled;

The third profiling block, the fourth profiling block, the third side swab and the fourth side swab can form a second spiral lug after being assembled;

the first spiral protruding block and the second spiral protruding block are arranged in a central symmetry mode.

Preferably, a first limit groove is formed in one side, far away from the second upper die insert, of the first upper die insert, and the first limit groove is used for limiting displacement of the first side drawing piece;

and a second limiting groove is formed in one side, far away from the fourth upper die insert, of the third upper die insert, and is used for limiting displacement of the third side drawing piece.

Preferably, the first side swab, the second side swab, the third side swab and the fourth side swab are all side swabs made of rigid materials.

The beneficial effects of the utility model are as follows:

The first spiral lug and the second spiral lug which are in central symmetry can fill a spiral rotating cavity of a product, and after injection molding is completed, the first side puller, the second side puller, the third side puller and the fourth side puller are respectively subjected to demolding, so that the mold is simple and compact in structure, reliable in product demolding and high in speed, and the injection molding problem that the outer surface of the product is provided with spiral rising spiral grooves can be solved.

Drawings

FIG. 1 is a schematic illustration of the overall structure of the present utility model;

FIG. 2 is a schematic illustration of a partial structure of the present utility model;

FIG. 3 is a schematic view of the first side draw unit, second side draw unit, upper die insert set and lower die insert set of the present utility model;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a schematic diagram of a first side draw unit, a second side draw unit, an upper die insert set and a lower die insert set according to the present utility model;

FIG. 6 is an enlarged partial schematic view of FIG. 5;

Fig. 7 is a schematic diagram of a first side draw unit and a second side draw unit of the present utility model.

The parts in the drawings are marked as follows:

100. The upper die core, an upper die insert group, 1011, a first upper die insert, 10111, a first profiling block, 10112, a first limit groove, 1012, a second upper die insert, 10121, a second profiling block;

200. The lower die comprises a lower die core, a lower die insert group, 2011, a first lower die insert, 20111, a third profiling block, 20112, a second limiting groove, 2012, a second lower die insert, 20121 and a fourth profiling block;

300. The device comprises a first side drawing unit, a first side drawing piece, 3011, a first side drawing block, 3012, a first side drawing piece, 302, a second side drawing piece, 3021, a second side drawing block and 3022, and a second side drawing piece;

400. the device comprises a second side drawing unit, a third side drawing piece, 4011, a third side drawing block, 4012, a third side drawing piece, 402, a fourth side drawing piece, 4021, a fourth side drawing block, 4022 and a fourth side drawing piece;

500. A third side pumping unit;

600. an injection cavity;

700. A flow passage;

800. A first helical bump;

900. And a second spiral bump.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Examples: referring to fig. 1 to 7, a combination injection mold includes:

The upper die core 100, the lower die core 200, the first side drawing unit 300, the second side drawing unit 400 and the third side drawing unit 500, wherein the first side drawing unit 300 and the second side drawing unit 400 are respectively arranged at two sides of the upper die core 100, the third side drawing unit 500 is arranged at the front side of the upper die core 100, the upper die core 100 is embedded with an upper die insert group 101, the lower die core 200 is embedded with a lower die insert group 201, and the upper die insert group 101, the lower die insert group 201, the first side drawing unit 300, the second side drawing unit 400 and the third side drawing unit 500 can form an injection cavity 600 after being assembled with the upper die core 100 and the lower die core 200, the upper die core 100 and the lower die core 200 are provided with a runner 700, and the runner 700 is communicated with the injection cavity 600.

Further, the upper die insert set 101 includes a first upper die insert 1011 and a second upper die insert 1012, the lower die insert set 201 includes a first lower die insert 2011 and a second lower die insert 2012, the first upper die insert 1011 is provided with a first profiling block 10111, the second upper die insert 1012 is provided with a second profiling block 10121, the first lower die insert 2011 is provided with a third profiling block 20111, and the second lower die insert 2012 is provided with a fourth profiling block 20121.

The first side drawer unit 300 includes a first side drawer 301 and a second side drawer 302, and the second side drawer unit 400 includes a third side drawer 401 and a fourth side drawer 402;

The first side drawer 301 includes a first side drawer block 3011 and a first side drawer 3012, the second side drawer 302 includes a second side drawer block 3021 and a second side drawer 3022, the third side drawer 401 includes a third side drawer block 4011 and a third side drawer 4012, and the fourth side drawer 402 includes a fourth side drawer block 4021 and a fourth side drawer 4022.

Wherein, the first profiling block 10111, the second profiling block 10121, the first side pump 3012 and the second side pump 3022 can form a first spiral bump 800 after being assembled;

The third profile block 20111, the fourth profile block 20121, the third side draw 4012 and the fourth side draw 4022 are assembled to form a second spiral protrusion 900;

The first spiral protrusion 800 and the second spiral protrusion 900 are arranged in a central symmetry manner.

The first spiral lug 800 is formed after the first profiling block 10111, the second profiling block 10121, the first side drawer 3012 and the second side drawer 3022 are assembled, the second spiral lug 900 is formed after the third profiling block 20111, the fourth profiling block 20121, the third side drawer 4012 and the fourth side drawer 4022 are assembled, spiral rotating cavities of products can be filled with the first spiral lug 800 and the second spiral lug 900 which are in central symmetry, and after injection molding is completed, the first side drawer 3012, the second side drawer 3022, the third side drawer 4012 and the fourth side drawer 4022 are respectively demoulded.

In addition, a first limit groove 10112 is formed on a side of the first upper die insert 1011 away from the second upper die insert 1012, and the first limit groove 10112 is used for limiting displacement of the first side drawer 301;

A second limiting groove 20112 is disposed on a side of the third upper die insert away from the fourth upper die insert, and the second limiting groove 20112 is used for limiting displacement of the third side drawer 401.

The first side swab 3012, the second side swab 3022, the third side swab 4012, and the fourth side swab 4022 are all made of a rigid material. The side swab made of rigid materials can prolong the service life of the side swab.

The working principle of the utility model is as follows:

1. after the upper mold core 100, the lower mold core 200, the first side pumping unit 300, the second side pumping unit 400, and the third side pumping unit 500 are assembled, injection molding is performed into the injection cavity 600 through the runner 700.

2. After injection molding is completed, the first side drawing block 3011 drives the first side drawing block 3012 to perform demolding, the second side drawing block 3021 drives the second side drawing block 3022 to perform demolding, the third side drawing block 4011 drives the third side drawing block 4012 to perform demolding, the fourth side drawing block 4021 drives the fourth side drawing block 4022 to perform demolding, finally the upper die insert 100 drives the first upper die insert 1011 and the second upper die insert 1012, and the lower die insert 200 drives the third upper die insert and the fourth upper die insert to perform demolding.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims

1. A combined injection mold, characterized in that the combined injection mold comprises:

An upper mold core, a lower mold core, a first side drawer unit, a second side drawer unit and a third side drawer unit, wherein the first side drawer unit and the second side drawer unit are respectively arranged on both sides of the upper mold core, and the third side drawer unit is arranged on the front side of the upper mold core, an upper mold insert group is embedded in the upper mold core, and a lower mold insert group is embedded in the lower mold core, and the upper mold insert group, the lower mold insert group, the first side drawer unit, the second side drawer unit and the third side drawer unit can form an injection cavity after being assembled with the upper mold core and the lower mold core, and the upper mold core and the lower mold core are provided with a flow channel, and the flow channel is communicated with the injection cavity;

The upper mold insert group includes a first upper mold insert and a second upper mold insert, and the lower mold insert group includes a first lower mold insert and a second lower mold insert, the first upper mold insert is provided with a first profiling block, the second upper mold insert is provided with a second profiling block, the first lower mold insert is provided with a third profiling block, and the second lower mold insert is provided with a fourth profiling block;

The first side drawer unit includes a first side drawer member and a second side drawer member, and the second side drawer unit includes a third side drawer member and a fourth side drawer member;

The first side drawer comprises a first side drawer block and a first side drawer, the second side drawer comprises a second side drawer block and a second side drawer, the third side drawer comprises a third side drawer block and a third side drawer, and the fourth side drawer comprises a fourth side drawer block and a fourth side drawer;

The first profiling block, the second profiling block, the first side drawer and the second side drawer can form a first spiral protrusion after being assembled;

The third profiling block, the fourth profiling block, the third side drawer and the fourth side drawer can form a second spiral convex block after being assembled;

The first spiral protrusion and the second spiral protrusion are centrally symmetrically arranged.

2. A combined injection mold according to claim 1, characterized in that: a first limiting groove is provided on a side of the first upper mold insert away from the second upper mold insert, and the first limiting groove is used to limit the displacement of the first side drawer;

A second limiting groove is provided on a side of the third upper mold insert away from the fourth upper mold insert, and the second limiting groove is used to limit the displacement of the third side drawer.

3. A combined injection mold according to claim 2, characterized in that the first side drawer, the second side drawer, the third side drawer and the fourth side drawer are all configured as side drawers made of rigid material.