CN218660258U

CN218660258U - Injection molding insert for preventing injection molding product from generating burrs

Info

Publication number: CN218660258U
Application number: CN202223102284.4U
Authority: CN
Inventors: 幸东; 黄忠国; 贺海彪; 刘俊明
Original assignee: Sunway Industrial Zhuhai Co ltd
Current assignee: Sunway Industrial Zhuhai Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-21
Anticipated expiration: 2032-11-22

Abstract

The utility model belongs to the technical field of injection mold, concretely relates to an injection mold insert for avoiding injection molding product to produce and drape over one's shoulders cutting edge of a knife or a sword has solved and has had the problem that easily produces and drape over one's sword among the prior art, including mould and the product through the mould shaping, the mould comprises front mould and back mould, and the inside fixed mounting of front mould has front mould benevolence, and the inside of back mould has the mount pad through countersunk screw fixed, and the fixed mold insert that is provided with in top of mount pad, mold insert and product are formed with the parting line with the junction of front mould benevolence, the fixed extension that is provided with in top of mold insert through the setting of extension and pit isotructure, adds the extension on the top of mold insert, adds the pit at the lower surface of front mould benevolence, utilizes cooperation between them for bicolor injection mold has the pit to fix a position when moulding plastics for the first time, avoids producing and sways, and the yields promotes by a wide margin.

Description

Injection molding insert for preventing injection molding product from generating burrs

Technical Field

The utility model relates to an injection mold technical field specifically is a mold insert of moulding plastics for avoiding injection moulding product to produce and drape over one's shoulders cutting edge of a knife or a sword.

Background

At present, injection molding is also called injection molding, and is a molding method combining injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

An injection mold in the prior art is shown in fig. 6, wherein a conventional mold insert 300 is fixedly installed inside a front mold, and cooperates with a stationary mold core in a rear mold to form a cavity for molding a product 100, wherein an old mold insert 200 is fixedly installed in the stationary mold insert and occupies the cavity space, so that a hole having the same shape as the old mold insert 200 is formed after the product 100 is molded, and at this time, a plane is formed at the top of a parting line formed between the conventional mold insert 300 and the product 100, and the old mold insert 200 abuts against the conventional mold insert 300, which is not easy to match a mold, and as the product is worn after being put into production, a gap is formed between the old mold insert 200 and the parting line, and as the top swings under the action of injection pressure, the product 100 has burrs, and a defective product is produced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a mold insert of moulding plastics for avoiding injection moulding product to produce and drape over one's shoulders cutting edge of a knife or a sword, solved the easy problem that drapes over one's shoulders cutting edge of a knife or a sword that produces.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides an injection mold insert for avoiding injection moulding product to produce and drape over one's shoulders cutting edge of a knife or a sword, includes the mould and through the fashioned product of mould, and the mould comprises front mould and back mould, and the inside fixed mounting of front mould has front mould benevolence, and the inside of back mould is fixed with the mount pad through countersunk screw, and the top of mount pad is fixed and is provided with the mold insert, and the mold insert is formed with the parting line with the junction of front mould benevolence with the product, the top of mold insert is fixed and is provided with the extension, the lower surface of front mould benevolence be provided with the corresponding pit of extension, the extension is embedded into the inside of pit behind the compound die and is makeed the parting line is stable.

Preferably, the mold is a double-color injection mold, and the front mold and the rear mold are both provided with two.

Preferably, the insert and the extension are of an integrally formed structure.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a setting of extension and pit isotructure adds the extension on the top of mold insert, adds the pit at the lower surface of front mould benevolence, utilizes cooperation between them for double-colored injection mold has the pit to fix a position when moulding plastics for the first time, avoids producing and sways, and the yields promotes by a wide margin.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the front mold insert and the insert of the present invention;

FIG. 3 is a schematic structural view of the convex mold insert of the present invention;

FIG. 4 is a partial cross-sectional view of the insert and the front core of the present invention;

FIG. 5 is a partial cross-sectional view of the insert and the front core of the present invention;

fig. 6 is a schematic diagram of an old insert and a conventional mold insert in the prior art.

Reference numbers in the figures:

1. a mold; 11. a mounting seat; 12. an insert; 121. an extension portion; 13. a front mold core; 131. a pit; 100. producing a product; 200. old mold inserts; 300. a traditional mold core; 400. a parting line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, an injection mold insert for preventing an injection molded product from generating burrs comprises a mold 1 and a product 100 molded by the mold 1, wherein the mold 1 comprises a front mold and a rear mold, a front mold core 13 is fixedly installed inside the front mold, a mounting seat 11 is fixed inside the rear mold through a countersunk head screw, an insert 12 is fixedly arranged at the top of the mounting seat 11, a parting line 400 is formed at the joint of the insert 12, the product 100 and the front mold core 13, an extension portion 121 is fixedly arranged at the top end of the insert 12, a pit 131 corresponding to the extension portion 121 is arranged on the lower surface of the front mold core 13, the extension portion 121 is embedded into the pit 131 after mold closing so that the parting line 400 is stable, the extension portion 121 is additionally arranged at the top end of the insert 12 through the arrangement of the extension portion 121 and the pit 131, the pit 131 is additionally arranged on the lower surface of the front mold core 13, and the pit 131 is matched with each other to enable the two-color injection mold 1 to be positioned when injection molding is performed for the first time, thereby preventing generation of products and greatly improving the swing yield.

Referring to fig. 1, a mold 1 is a two-color injection mold 1, and two front molds and two rear molds are provided.

Referring to fig. 3, the insert 12 and the extension 121 are integrally formed.

The utility model discloses the concrete implementation process as follows: during primary injection molding, the front mold moves downwards along the guide post and is closed with the rear mold, the extending part 121 at the top end of the insert 12 is embedded into the pit 131 for positioning, swinging caused by abrasion is avoided, the product 100 is stably molded after the injection molding machine injects rubber materials, the front mold and the rear mold are replaced during secondary injection molding, the rear mold is identical in structure, the front mold is replaced, the product 100 which is molded in one step is continuously placed into the second rear mold, and the front mold and the rear mold are closed again for molding to obtain a final finished product.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides an injection mold insert for avoiding injection molding processing product to produce and drape over one's shoulders cutting edge of a knife or a sword, include mould (1) and through the fashioned product (100) of mould (1), mould (1) comprises front mould and back mould, the inside fixed mounting of front mould has front mould benevolence (13), the inside of back mould is fixed with mount pad (11) through countersunk screw, the fixed mold insert (12) that is provided with in top of mount pad (11), mold insert (12) and product (100) are formed with parting line (400) with the junction of front mould benevolence (13), its characterized in that: an extension part (121) is fixedly arranged at the top end of the insert (12), a pit (131) corresponding to the extension part (121) is arranged on the lower surface of the front mold core (13), and the extension part (121) is embedded into the pit (131) after mold closing so that the parting line (400) is stable.

2. The injection molding insert of claim 1, wherein the insert is configured to prevent flash from occurring on an injection molded product, and further comprises: the mold (1) is a double-color injection mold (1), and the front mold and the rear mold are both provided with two.

3. The injection molding insert of claim 1, wherein the insert is configured to prevent flash from occurring on an injection molded product, and further comprises: the insert (12) and the extension (121) are of an integrally formed structure.