CN216182198U

CN216182198U - Mould mechanism for injection moulding

Info

Publication number: CN216182198U
Application number: CN202122535101.7U
Authority: CN
Inventors: 许龙云
Original assignee: Huangyu Precision Technology Suzhou Co ltd
Current assignee: Huangyu Precision Technology Suzhou Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-05
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses a mold mechanism for injection molding, which comprises a male mold core, wherein the male mold core is provided with a groove for placing an embedded terminal, the embedded terminal is in clearance fit with the groove, a fixed insert is arranged on the male mold core, a magnet is arranged in the male mold core, the upper surface of the magnet is connected with the lower surface of the fixed insert, a telescopic PIN which can move in the horizontal direction is arranged in the fixed insert, and the front end of the telescopic PIN extends into the groove to be contacted with the side surface of the embedded terminal. The mold mechanism for injection molding provided by the utility model can conveniently place the terminal into a mold, and can avoid damage of a terminal surface coating, unqualified terminal appearance and unqualified product cleanliness.

Description

Mould mechanism for injection moulding

Technical Field

The utility model relates to a mold mechanism for injection molding, and belongs to the technical field of injection molding.

Background

The processing process of the injection product comprises the steps of stamping, bending and forming the terminal, electroplating the surface of the terminal, placing the terminal into a die, embedding the injection product, and warehousing after the inspection is qualified. The terminal embedded in the injection molding product has unstable position degree of a terminal welding pin due to bending angle deviation; the terminal sealing part has strict dimensional tolerance (+0.02) due to the risk of controlling plastic burrs; the terminal is difficult to manually place in the die, so that the surface coating of the terminal is damaged, the appearance of the terminal is unqualified, and the cleanliness of a product is unqualified.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the injection mold mechanism which can conveniently place the terminal into a mold and can avoid damage of a terminal surface coating, unqualified terminal appearance and unqualified product cleanliness.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a mould mechanism for injection molding, includes the core insert, including the core insert, set up the fluting that is used for placing the buried terminal on the core insert, bury the terminal with fluting clearance fit, install fixed inserting above the core insert, be provided with magnet in the core insert, the upper surface of magnet with the fixed lower surface of inserting is connected, be provided with the flexible PIN of horizontal direction activity in the fixed inserting, the front end of flexible PIN stretches into in the fluting with bury terminal side contact.

The telescopic PIN is sleeved with an elastic body, the front side of the elastic body is in contact with the fixed insert, and the rear side of the elastic body is in contact with the telescopic PIN.

The elastic body is a sealing ring.

The rear end of the telescopic PIN is provided with an inclined plane structure.

The size of a gap between the embedded terminal and the slot is larger than 0.5 mm.

The magnet is cylindrical in shape.

The utility model has the beneficial effects that: according to the mold mechanism for injection molding, the embedded terminal is in clearance fit with the groove, the fixed insert is internally provided with the telescopic PIN which is movable in the horizontal direction, the front end of the telescopic PIN extends into the groove to be in contact with the side face of the embedded terminal, the telescopic PIN retreats before mold closing and advances after mold closing by injection molding, so that the terminal can be manually placed into the mold simply and quickly, surface inserting damage does not exist, production is stable, the yield is high, the surface cleanliness of a product is qualified, and the quality is ensured.

Drawings

FIG. 1 is a schematic perspective view of a mold mechanism for injection molding;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 (before mold closing);

fig. 3 is a schematic cross-sectional view (after clamping) at a-a in fig. 1.

The reference numbers in the figures are as follows: 1-product; 2-a core insert; 3-a magnet; 4-stretch PIN; 5-fixing the insert; 6-an elastomer; 7-buried terminals; and 21-slotting.

Detailed Description

The present invention is further described with reference to the accompanying drawings, and the following examples are only for clearly illustrating the technical solutions of the present invention, and should not be taken as limiting the scope of the present invention.

As shown in fig. 1 to 3, the present invention provides a mold mechanism for injection molding, which comprises a core 2, the core 2 is provided with a slot 21 for placing an embedded terminal 7, the embedded terminal 7 is in clearance fit with the slot 21, and the size of the gap between the embedded terminal 7 and the slot 21 is greater than 0.5 mm.

The fixing insert 5 is installed on the male die core 2, the magnet 3 is arranged in the male die core 2, the upper surface of the magnet 3 is connected with the lower surface of the fixing insert 5, and the magnet 3 is cylindrical and used for fixing the fixing insert 5 on the male die core 2.

The fixed insert 5 is internally provided with a telescopic PIN4 which is movable in the horizontal direction, and the front end of the telescopic PIN4 extends into the slot 21 and is contacted with the side surface of the embedded terminal 7. The elastic body 6 is sleeved on the telescopic PIN4, and the elastic body 6 is a sealing ring. The front side of the elastomer 6 is in contact with the fixed insert 5 and the rear side of the elastomer 6 is in contact with the telescopic PIN 4. Before the die assembly, the elastic body 6 is under the action of elastic force

The rear end of flexible PIN4 contacts with core 2, can conveniently put into to bury terminal 7 this moment on core 2 in fluting 21, and behind the mould compound die, flexible PIN4 inclined plane is under the effect of front mould forward motion, and flexible PIN4 front end is with burying terminal 7 contact, moulds plastics. The rear end of flexible PIN4 is provided with the inclined plane structure, conveniently cooperates with the front mould.

The working process of the utility model is as follows:

step one, assembling a die, sleeving an elastic body 6 into a telescopic PIN4, installing a telescopic PIN4 into a fixed insert 5, assembling the fixed insert 5 into a core insert 2, and magnetically connecting the fixed insert 5 and the core insert 2 by a circular magnet 3;

step two, opening the die, and retreating the telescopic PIN4 to the limit point of the core insert 2 under the action of the elastic body 6 to ensure that a gap larger than 0.5mm is reserved between the telescopic PIN4 and the embedded terminal 7, so as to realize coarse positioning of the terminal;

and step three, manually embedding the terminal into the terminal 7, wherein the terminal is smoothly embedded due to the gap larger than 0.5 mm.

Fourthly, the die is closed, the telescopic PIN4 inclined plane moves forwards to the limit point of the core insert 2 under the action of the front die, no gap is ensured between the telescopic PIN4 inclined plane and the embedded terminal 7, and accurate positioning is realized;

and step five, performing injection molding, injecting the product 1, cooling, ejecting the product 1, and periodically circulating.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.

Claims

1. The utility model provides a mould mechanism for injection moulding which characterized in that: including public mould benevolence (2), offer on public mould benevolence (2) and be used for placing fluting (21) of burying terminal (7), bury terminal (7) with fluting (21) clearance fit, install fixed (5) of inserting above public mould benevolence (2), be provided with magnet (3) in public mould benevolence (2), the upper surface of magnet (3) with the lower surface of fixed (5) of inserting is connected, be provided with flexible PIN (4) of horizontal direction activity in fixed (5) of inserting, the front end of flexible PIN (4) stretches into in fluting (21) with bury terminal (7) side contact.

2. A mold mechanism for injection molding according to claim 1, wherein: the telescopic PIN (4) is sleeved with an elastic body (6), the front side of the elastic body (6) is in contact with the fixed insert (5), and the rear side of the elastic body (6) is in contact with the telescopic PIN (4).

3. A mold mechanism for injection molding according to claim 2, wherein: the elastic body (6) is a sealing ring.

4. A mold mechanism for injection molding according to claim 1, wherein: the rear end of the telescopic PIN (4) is provided with an inclined plane structure.

5. A mold mechanism for injection molding according to claim 1, wherein: the size of a gap between the embedded terminal (7) and the slot (21) is larger than 0.5 mm.

6. A mold mechanism for injection molding according to claim 1, wherein: the magnet (3) is cylindrical.