CN220075454U

CN220075454U - Double-cavity injection mold insert demolding structure

Info

Publication number: CN220075454U
Application number: CN202321567050.9U
Authority: CN
Inventors: 彭运松; 张营国; 占伟; 谢甫俊
Original assignee: Kunshan Nuohe Electronics Co ltd
Current assignee: Kunshan Nuohe Electronics Co ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-11-24
Anticipated expiration: 2033-06-20

Abstract

The utility model relates to an insert demolding structure of a dual-cavity injection mold, which comprises a lower mold core and an injection runner, wherein two groups of mold cavities are arranged on the lower mold core, each group of mold cavities is provided with an A cavity and a B cavity with two different structures, the injection runner is arranged between the two groups of mold cavities, a B1 insert, a B2 insert, a B3 insert and a B4 insert are respectively arranged in the mold cavities, and the lower end of the lower mold core is respectively provided with a first round ejector rod, a second round ejector rod, a third round ejector rod, a first flat ejector rod and a plurality of second flat ejector rods. The beneficial effects of the utility model are as follows: the injection molding machine has the advantages that the structure cooperation of the inserts, the ejector rods and the ejector pins which are arranged at fixed points is adopted, the injection molding machine is demoulded in a twice ejection mode according to different structures of insertion, embedding and ejection according to the structural characteristics of the injection molding product, and smooth taking out of the injection molding product is ensured.

Description

Double-cavity injection mold insert demolding structure

Technical Field

The utility model relates to the technical field of mold manufacturing, in particular to a demolding structure of an insert of a dual-cavity 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 accurate dimensions, the injection molding is a processing method used when producing parts with complex shapes in batches, specifically, the injection mold is used for injecting heated and melted plastics into a mold cavity at high pressure by an injection molding machine, and cooling and solidifying are carried out to obtain a formed product;

the injection mold consists of a movable mold and a fixed mold, wherein the movable mold is arranged on a movable mold plate of the injection molding machine, the fixed mold is arranged on a fixed mold plate of the injection molding machine, the movable mold and the fixed mold are closed to form a pouring system and a cavity during injection molding, and the movable mold and the fixed mold are separated during mold opening so as to take out plastic products;

some mass production and shape complicacy parts, especially two matched products, adopt the design of dual mold chamber generally, but current dual mold chamber mould is generally suitable for radial great product of volume, adopts the side to loose core the structure and can take out relatively easier when the drawing of patterns, but to the product of lamellar type and area barb, the side to loose core the structure and can not play fine effect, still can increase the complexity of mould design.

Disclosure of Invention

The purpose of the utility model is that: an insert demolding structure of a dual-cavity injection mold is provided to solve the problems set forth in the background art.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a bimodulus chamber injection mold inserts drawing of patterns structure, includes the lower mould benevolence and annotates the runner, be equipped with two sets of die cavities on the lower mould benevolence, two sets of the die cavity all has a cavity A and a cavity B of two different structures, annotate the runner setting in two sets of in the middle of the die cavity, be provided with B1 inserts, B2 inserts, B3 inserts and B4 inserts in the die cavity respectively, lower mould benevolence lower extreme is provided with first round ejector pin, second round ejector pin, third round ejector pin, first flat ejector pin and a plurality of second flat ejector pin respectively.

Preferably, injection molding grooves matched with the mold cavities are formed in two sides of the B1 insert and the B2 insert, and the B1 insert and the B2 insert are identical in structure.

Preferably, injection molding grooves matched with the mold cavities are formed in the upper end faces of the B3 insert and the B4 insert.

Preferably, the first dome rod and the second dome rod penetrate through the B1 insert and the B2 insert respectively.

Preferably, the third round ejector rod is embedded in the B4 insert, and the first flat ejector rod is embedded in the B3 insert.

Preferably, the B1 insert, the B2 insert, the B3 insert, and the B4 insert are all positioned in the B cavity.

Preferably, the lower end of the die cavity is also provided with a plurality of ejector pins.

The beneficial effects of the utility model are as follows: the utility model provides a double-cavity injection mold inserts drawing of patterns structure, adopts the structural fit of inserts, ejector pin, thimble that a plurality of fixed points set up, with alternate, embedding, the different structures of lower top according to injection molding product structural feature, carries out the drawing of patterns through the mode of secondary ejecting, guarantees that injection molding product takes out smoothly.

Drawings

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

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

FIG. 3 is a schematic diagram of the product of the present utility model.

In the figure: the mold comprises a lower mold core, a 2-pouring runner, a 3-mold cavity, a 31-A cavity, a 32-B cavity, a 4-B1 insert, a 5-B2 insert, a 6-B3 insert, a 7-B4 insert, an 8-first round ejector rod, a 9-second round ejector rod, a 10-third round ejector rod, an 11-first flat ejector rod, a 12-second flat ejector rod and a 13-ejector pin.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-3, an insert demolding structure of a dual-cavity injection mold comprises a lower mold core 1 and an injection runner 2, wherein two groups of mold cavities 3 are arranged on the lower mold core 1, each of the two groups of mold cavities 3 is provided with an A cavity 31 and a B cavity 32 with two different structures, the two groups of mold cavities are of a four-out mold cavity structure, the injection runner 2 is arranged between the two groups of mold cavities 3, the injection runner corresponds to four glue outlets, a B1 insert 4, a B2 insert 5, a B3 insert 6 and a B4 insert 7 are respectively arranged in the mold cavities 3, and a first round ejector rod 8, a second round ejector rod 9, a third round ejector rod 10, a first flat ejector rod 11 and a plurality of second flat ejector rods 12 are respectively arranged at the lower end of the lower mold core 1.

Injection molding grooves matched with the mold cavity 3 are formed in two sides of the B1 insert 4 and the B2 insert 5, the structures of the B1 insert 4 and the B2 insert 5 are the same, injection molding grooves matched with the mold cavity 3 are formed in the upper end faces of the B3 insert 6 and the B4 insert 7, and the injection molding grooves are matched with the mold cavity 3.

The first round ejector rod 8 and the second round ejector rod 9 respectively penetrate through the B1 insert 4 and the B2 insert 5, and when in demolding, the first round ejector rod 8 and the second round ejector rod 9 jack up the B1 insert 4 and the B2 insert 5 at the same time.

The third round ejector rod 10 is embedded in the B4 insert 7, the first flat ejector rod 11 is embedded in the B3 insert 6, and when demolding is carried out, the third round ejector rod 10 and the first flat ejector rod 11 jack up the B4 insert 7 and the B3 insert 6 at the same time.

The B1 insert 4, the B2 insert 5, the B3 insert 6, and the B4 insert 7 are all located within the B cavity 32.

The lower end of the die cavity 3 is also provided with a plurality of ejector pins 13.

During demolding, the injection molding product is firstly jacked by the structure through the B1 insert 4, the B2 insert 5, the B3 insert 6 and the B4 insert 7 to form a part, and then is jacked by the plurality of ejector pins 13 to be separated from the B1 insert 4, the B2 insert 5, the B3 insert 6 and the B4 insert 7.

The above examples are provided to further illustrate the utility model and do not limit the utility model to these specific embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be construed as being within the protection scope of the present utility model.

Claims

1. The utility model provides a bimodulus chamber injection mold inserts drawing of patterns structure, includes lower mould benevolence (1) and annotates runner (2), its characterized in that: be equipped with two sets of die cavities (3) on lower mould benevolence (1), two sets of die cavity (3) all have a chamber (31) and a chamber (32) of two different structures, annotate runner (2) set up in two sets of in the middle of die cavity (3), be provided with B1 inserts (4), B2 inserts (5), B3 inserts (6) and B4 inserts (7) in die cavity (3) respectively, lower mould benevolence (1) lower extreme is provided with first round ejector pin (8), second round ejector pin (9), third round ejector pin (10), first flat ejector pin (11) and a plurality of second flat ejector pin (12) respectively.

2. The dual cavity injection mold insert ejection structure of claim 1, wherein: injection molding grooves matched with the mold cavities (3) are formed in two sides of the B1 insert (4) and the B2 insert (5), and the B1 insert (4) and the B2 insert (5) are identical in structure.

3. The dual cavity injection mold insert ejection structure of claim 1, wherein: injection molding grooves matched with the mold cavity (3) are formed in the upper end faces of the B3 insert (6) and the B4 insert (7).

4. The dual cavity injection mold insert ejection structure of claim 1, wherein: the first round ejector rod (8) and the second round ejector rod (9) respectively penetrate through the B1 insert (4) and the B2 insert (5).

5. The dual cavity injection mold insert ejection structure of claim 1, wherein: the third round ejector rod (10) is embedded in the B4 insert (7), and the first flat ejector rod (11) is embedded in the B3 insert (6).

6. The dual cavity injection mold insert ejection structure of claim 1, wherein: the B1 insert (4), the B2 insert (5), the B3 insert (6) and the B4 insert (7) are all located in the B cavity (32).

7. The dual cavity injection mold insert ejection structure of claim 1, wherein: the lower end of the die cavity (3) is also provided with a plurality of ejector pins (13).