CN218227648U

CN218227648U - Forming die of rotary ejection structure

Info

Publication number: CN218227648U
Application number: CN202221888555.0U
Authority: CN
Inventors: 王权兵
Original assignee: Guangdong Galanz Enterprises Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-01-06
Anticipated expiration: 2032-07-21

Abstract

A forming die with a rotary ejection structure comprises a first insert, a second insert, a supporting ejector pin and a rotatable inclined hexagonal ejector pin, wherein the rear die assembly further comprises a rear die insert which is arranged on a rear die core; when the mold is ejected, the first mold insert on the surface needle plate moves axially along the inclined hexagonal ejector rod, the supporting ejector pin fixed on the first mold insert in the ejection process ejects the injection molded product, when the inclined hexagonal ejector rod rotates, the inclined hexagonal ejector rod drives the first mold insert to rotate, the supporting ejector pin drives the molded injection molded product to rotate and eject out the molding mold cavity, the traditional core pulling structure is cancelled, and automatic demolding is realized. The utility model has the characteristics of simple structure, good reliability, simple part assembly, low manufacturing cost and the like.

Description

Forming die of rotary ejection structure

Technical Field

The utility model relates to an injection mold technical field especially relates to a rotating forming die of ejecting structure.

Background

As shown in fig. 4-5, reference numeral 3 is an injection molding product, reference numeral 301 is a blade, and in the conventional injection mold design, the basic consideration is how to loose the core and release the mold, and during the ejection process, the injection molding product is usually moved along the ejection direction of the injection molding machine, and the other direction is moved by a core-pulling mechanism.

Chinese patent document No. CN209478823U discloses in 2018 an injection mold for processing a dual-layer wind wheel of a fresh air exchanger, which specifically discloses an injection mold comprising a cavity compound plate and a core compound plate, wherein a cavity frame is installed below the cavity compound plate, two mold pins are respectively installed on two sides of the core compound plate, an ejection mechanism is arranged between the two mold pins, a core fixing plate is installed on the two mold pins, a core plate is installed on the core fixing plate, a boss is arranged in the middle of the core plate, a lower wind wheel insert and an upper wind wheel insert are arranged on the boss, a shaft hole and a shaft hole core rod are arranged in the centers of the lower wind wheel insert and the upper wind wheel insert, two slit outer slide blocks are arranged on the core plate on two sides of the boss, a mold cavity is formed between the inner walls of the two slit outer slide blocks, the outer walls of the lower wind wheel insert and the upper wind wheel insert, and the top surfaces of the inner walls of the cavity frame, a dual-layer wind wheel is injection molded in the mold cavity, oblique guide blocks are respectively arranged on the outer walls of the two slit outer slide blocks, and oblique guide slide grooves are respectively arranged on two sides of the cavity frame. However, the structure adopts a traditional core-pulling structure, manual demolding is needed by workers, and labor force of the workers is increased.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a forming die who rotates ejecting structure is in order to overcome the weak point among the prior art, cancels traditional structure of loosing core, realizes the automatic drawing of patterns of injection moulding through rotating ejecting structure, its simple structure, good reliability, part assembly are simple and manufacturing cost.

The forming die of the rotary ejection structure comprises a front die assembly and a rear die assembly, wherein the front die assembly comprises a front die frame and a front die core arranged on the front die frame, the rear die assembly comprises a rear die frame and a rear die core arranged on the rear die frame, the front die core and the rear die core are assembled to form a forming die cavity of an injection molding product, the rotary ejection structure comprises a first insert, a second insert, a supporting ejector pin and a rotatable inclined hexagonal ejector rod, the rear die assembly further comprises a rear die insert, the rear die insert is arranged on the rear die core, the forming die further comprises a surface needle plate, the first insert is arranged on the surface needle plate, the supporting ejector pin is fixed on the first insert, one end of the inclined hexagonal ejector rod is connected with the first insert, and the other end of the inclined hexagonal ejector rod sequentially penetrates through the rear die insert and the rear die core and then is connected with the second insert; when the mold is opened, the surface needle plate is pushed to move towards the molding mold cavity, the first mold insert axially moves along the inclined hexagonal ejector rod, the injection molding product is ejected by the ejector pin, and when the inclined hexagonal ejector rod rotates, the inclined hexagonal ejector rod drives the first mold insert to rotate, so that the injection molding product which is molded by the ejector pin is driven to rotate and eject out of the molding mold cavity.

The rotary ejection structure further comprises a guide block, the forming die further comprises a backing plate, and the guide block is sleeved on the inclined hexagonal ejector rod and is installed on the backing plate.

And a fastener is arranged between the rear mold insert and the rear mold core, and the rear mold insert is fixedly arranged on the rear mold core through the fastener.

The fastener comprises a screw and a pin, and the rear mold insert is fixedly installed on the rear mold core through the screw and the pin.

And the rear mold insert is provided with a blind hole, and the blind hole is matched with the bottom of the blade on the injection molding product.

The inclination of the inclined hexagonal ejector rod is larger than or equal to that of the blade.

The first insert is fixed on one end of the inclined hexagonal ejector rod through a screw.

The face needle plate is provided with a groove for mounting the second insert, and the second insert is rotatably arranged on the groove through the inclined hexagonal ejector rod.

The utility model discloses a forming die who rotates ejecting structure, when the mould is ejecting, the first mold insert on the faller along oblique hexagonal ejector pin axial displacement, the support thimble that fixes on first mold insert in ejecting process is pushing up injection moulding, when hexagonal ejector pin rotates to one side, hexagonal ejector pin drives first mold insert rotation to one side, and the support thimble drives fashioned injection moulding rotates and ejecting shaping die cavity, realizes slowly rotating the demolding on one side ejecting. And a traditional core pulling structure is cancelled, and automatic demolding is realized. The device has the characteristics of simple structure, strong reliability, simple part assembly, low manufacturing cost and the like.

Drawings

Fig. 1 is a schematic view (cross-sectional view) of an assembly structure of an integral forming die according to an embodiment of the present invention.

Fig. 2 is an exploded schematic view of the rear mold assembly and the rotational ejection structure according to an embodiment of the present invention.

Fig. 3 to 5 are schematic structural diagrams of injection molded products according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

1-front mold assembly, 101-front mold base, 102-front mold core, 2-rear mold assembly, 201-rear mold base, 202-rear mold core, 3-injection molding product, 301-blade, 4-molding cavity, 5-first mold insert, 6-second mold insert, 7-ejector pin, 8-inclined hexagonal ejector pin, 9-rear mold insert, 10-face pin plate, 1001-groove, 11-guide block, 12-backing plate and 13-pin.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 5, in one embodiment, a forming mold with a rotational ejection structure is provided, the forming mold includes a front mold assembly 1 and a rear mold assembly 2, the front mold assembly 1 includes a front mold frame 101 and a front mold core 102 mounted on the front mold frame 101, the rear mold assembly 2 includes a rear mold frame 201 and a rear mold core 202 mounted on the rear mold frame 201, the front mold core 102 and the rear mold core 202 are assembled to form a forming mold cavity 4 of an injection molded product 3, the rotational ejection structure includes a first insert 5, a second insert 6, a supporting pin 7 and a rotatable canted hexagonal ejector pin 8, the rear mold assembly 2 further includes a rear mold insert 9, the rear mold insert 9 is disposed on the rear mold core 202, the forming mold further includes a face pin plate 10, the first insert 5 is disposed on the face pin plate 10, the supporting pin 7 is fixed on the first insert 5, one end of the canted hexagonal ejector pin 8 is connected to the first insert 5, and the other end of the canted hexagonal ejector pin 8 sequentially passes through the rear mold insert 9 and the rear mold core 202 and then is connected to the second insert 6; when the mold is opened, when the thimble plate 10 is pushed to move towards the molding cavity 4, the first mold insert 5 moves axially along the inclined hexagonal ejector rod 8, the ejector pin 7 pushes the injection molded product 3, and when the inclined hexagonal ejector rod 8 rotates, the inclined hexagonal ejector rod 8 drives the first mold insert 5 to rotate, so that the ejector pin 7 is supported to drive the molded injection molded product 3 to rotate and eject the molding cavity 4.

Specifically, when the mold is ejected, the first insert 5 on the needle plate 10 moves axially along the inclined hexagonal ejector rod 8, the support ejector pin 7 fixed on the first insert 5 ejects the injection molded product 3 in the ejection process, when the inclined hexagonal ejector rod 8 rotates, the inclined hexagonal ejector rod 8 drives the first insert 5 to rotate, the support ejector pin 7 drives the molded injection molded product 3 to rotate and eject the molding cavity 4, and ejection and mold ejection are realized while mold ejection is slowly rotated. The traditional core pulling structure is cancelled, automatic demolding is realized, and the automatic demolding device has the advantages of simple structure, strong reliability, simple part assembly and low manufacturing cost.

It should be noted that a motor, a rotating cylinder or a rotating oil cylinder can be adopted to drive the inclined hexagonal ejector rod 8 to rotate; in order to ensure the concentricity of the injection molded article 3, the front core 102 and the rear core 202 are designed to have a positioning structure in the form of a round key.

Referring to fig. 1 and 2, in order to ensure smooth ejection of the injection molded product 3, the rotational ejection structure further includes a guide block 11, the forming mold further includes a backing plate 12, and the guide block 11 is sleeved on the hexagonal ejector rod 8 and is mounted on the backing plate 12.

A fastener is arranged between the rear mold insert 9 and the rear mold core 202, and the rear mold insert 9 is fixedly arranged on the rear mold core 202 through the fastener.

The fasteners comprise screws and pins 13, and the rear mold insert 9 is fixedly mounted on the rear mold core 202 through the screws and pins 13.

Referring to fig. 1 and 2, the rear mold insert 9 is provided with a blind hole 901, and the blind hole 901 is matched with the bottom of the blade 301 on the injection molded product 3.

Specifically, the rear mold insert 9 is provided with a blind hole 901, which is designed to the bottom of the glue position of the blade 301 of the injection molded product 3 in a blind insert forming manner, the rear mold insert 9 is fixed with the rear mold core 202 by screws, and two pins 13 are added for positioning.

Further, the slope of the hexagonal socket head 8 is greater than or equal to the slope of the blade 301.

Further, the first insert 5 is fixed to one end of the hexagonal socket head 8 by a screw.

Further, the face pin plate 10 is provided with a groove 1001 for mounting the second insert 6, and the second insert 6 is rotatable on the groove 1001 by the hexagonal socket 8.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a forming die of ejecting structure rotates, forming die includes preceding mould subassembly (1) and back mould subassembly (2), preceding mould subassembly (1) includes preceding die carrier (101) and installs front mould benevolence (102) on preceding die carrier (101), back mould subassembly (2) include back die carrier (201) and install back mould benevolence (202) on back die carrier (201), front mould benevolence (102) with back mould benevolence (202) compound die forms the shaping die cavity (4) of injection moulding article (3), its characterized in that: the rotary ejection structure comprises a first insert (5), a second insert (6), a supporting thimble (7) and a rotatable bevel hexagonal ejector rod (8), the rear die assembly (2) further comprises a rear die insert (9), the rear die insert (9) is arranged on the rear die core (202), the forming die further comprises a face pin plate (10), the first insert (5) is arranged on the face pin plate (10), the supporting thimble (7) is fixed on the first insert (5), one end of the bevel hexagonal ejector rod (8) is connected with the first insert (5), and the other end of the bevel hexagonal ejector rod (8) sequentially penetrates through the rear die insert (9) and the rear die core (202) and then is connected with the second insert (6); when the mold is opened, the surface needle plate (10) is pushed to move towards the molding mold cavity (4), the first mold insert (5) moves axially along the inclined hexagonal ejector rod (8), the support ejector pin (7) pushes against the injection molding product (3), and when the inclined hexagonal ejector rod (8) rotates, the inclined hexagonal ejector rod (8) drives the first mold insert (5) to rotate so as to realize that the support ejector pin (7) drives the molded injection molding product (3) to rotate and eject out the molding mold cavity (4).

2. The molding die of the rotary ejection structure according to claim 1, wherein: the rotary ejection structure further comprises a guide block (11), the forming die further comprises a base plate (12), and the guide block (11) is sleeved on the inclined hexagonal ejector rod (8) and is installed on the base plate (12).

3. The molding die of the rotary ejection structure according to claim 1, wherein: and a fastening piece is arranged between the rear mold insert (9) and the rear mold core (202), and the rear mold insert (9) is fixedly installed on the rear mold core (202) through the fastening piece.

4. The molding die of the rotary ejection structure according to claim 3, wherein: the fastener comprises a screw and a pin (13), and the rear mold insert (9) is fixedly installed on the rear mold core (202) through the screw and the pin (13).

5. The forming die of the rotary ejection structure according to claim 1, wherein: the rear mold insert (9) is provided with a blind hole (901), and the blind hole (901) is matched with the bottom of the blade (301) on the injection molding product (3).

6. The molding die of the rotary ejection structure according to claim 5, wherein: the inclination of the inclined hexagonal mandril (8) is greater than or equal to the inclination of the blade (301).

7. The forming die of the rotary ejection structure according to claim 1, wherein: the first insert (5) is fixed on one end of the inclined hexagonal ejector rod (8) through a screw.

8. The forming die of the rotary ejection structure according to claim 1, wherein: the needle board (10) is provided with a groove (1001) for mounting the second insert (6), and the second insert (6) can rotate on the groove (1001) through the inclined hexagonal ejector rod (8).