CN220163104U

CN220163104U - Forming structure of plastic part with deep cavity

Info

Publication number: CN220163104U
Application number: CN202321515947.7U
Authority: CN
Inventors: 林东海; 吴宝才
Original assignee: Zhongshan Jianfeng Electronic Technology Co ltd
Current assignee: Zhongshan Jianfeng Electronic Technology Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-12-12
Anticipated expiration: 2033-06-14

Abstract

The utility model provides a molding structure of a plastic part with a deep cavity, which comprises a rear mold assembly, wherein a molding seat is arranged on the rear mold assembly, and two first sliding blocks and two second sliding blocks which are oppositely arranged are arranged around the molding seat; the molding seat is provided with a molding cavity, the periphery of the bottom of the molding cavity is arc-shaped, the bottom of the molding cavity is provided with a plurality of ejector pins used for ejecting plastic parts, and the inside of the molding cavity is also embedded with a molding rod. The plastic part forming device is provided with the forming seat and the forming cavity, so that plastic parts with deep cavities can be conveniently formed, meanwhile, as the periphery of the bottom of the forming cavity is arc-shaped, the adhesive force between the plastic parts and the forming seat can be reduced due to the arc-shaped design, the plastic parts are not easy to adhere in the forming cavity after being formed, the ejector pins can conveniently eject the plastic parts out of the forming cavity, and the forming quality of the plastic parts is ensured.

Description

Forming structure of plastic part with deep cavity

Technical Field

The utility model relates to the field of dies, in particular to a molding structure of a plastic part with a deep cavity.

Background

The mould is an important tool for producing plastic parts. The deep cavity is arranged on part of the plastic parts, and after injection molding of the plastic parts is completed, the deep cavity is not easy to eject and easy to stick to the mold, so that the molding quality of the plastic parts is affected. In view of this, a molding structure of a plastic part with a deep cavity is developed.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art.

The utility model provides a molding structure of a plastic part with a deep cavity, which comprises a rear mold assembly, wherein a molding seat is arranged on the rear mold assembly, and two first sliding blocks and two second sliding blocks which are oppositely arranged are arranged around the molding seat; the plastic forming device is characterized in that a forming cavity is formed in the forming seat, the periphery of the bottom of the forming cavity is arc-shaped, a plurality of ejector pins used for ejecting plastic parts are arranged at the bottom of the forming cavity, and forming rods are embedded in the forming cavity.

According to some embodiments of the utility model, the forming seat is provided with a mounting groove, and the bottom of the forming rod is fixed in the mounting groove.

According to some embodiments of the utility model, the forming seat is provided with a round hole forming part.

According to some embodiments of the utility model, an arc-shaped molding part is arranged around the top of the molding cavity.

According to some embodiments of the utility model, the first slider is provided with a protruding portion on both sides, and the protruding portion is provided with an oblique guide hole.

According to some embodiments of the utility model, the rear die assembly is provided with a limiting protrusion for limiting the limit position of the first slider.

According to some embodiments of the utility model, the bottom of the first slider is provided with a guiding groove.

According to some embodiments of the utility model, the first slider is provided with wear blocks on the side that contacts the front module.

The utility model has at least the following technical effects:

1. the molding structure of the plastic part with the deep cavity is provided with the molding seat, the molding cavity is formed in the molding seat, the plastic part with the deep cavity is conveniently molded, meanwhile, as the periphery of the bottom of the molding cavity is arc-shaped, the adhesive force between the plastic part and the molding seat can be reduced due to the arc-shaped design, the plastic part is not easy to adhere in the molding cavity after being molded, the ejector pin can conveniently eject the plastic part out of the molding cavity, and the molding quality of the plastic part is ensured.

2. According to the molding structure of the plastic part with the deep cavity, disclosed by the embodiment of the utility model, the arc-shaped molding part is arranged at the periphery of the top of the molding cavity. The arc-shaped forming part can further reduce the adhesive force between the plastic part and the forming seat, and the ejector pin can conveniently eject the plastic part.

Drawings

FIG. 1 is an overall schematic of an embodiment of the present utility model;

FIG. 2 is a schematic view of a molding seat according to an embodiment of the present utility model;

fig. 3 is a schematic view of a first slider according to an embodiment of the present utility model.

Reference numerals: the rear mold assembly 100, the limit protrusion 110, the molding seat 200, the molding cavity 210, the ejector pin 220, the molding rod 230, the mounting groove 240, the round hole molding part 250, the arc molding part 260, the first slider 300, the protruding part 310, the inclined guide hole 311, the guide groove 320, the second slider 400 and the wear-resistant block 500.

Detailed Description

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the disclosure as defined in the claims and their equivalents. The description includes various specific details to aid in understanding, but these details should be regarded as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to literal meanings, but are only used by the inventors to enable a clear and consistent understanding of the disclosure. Thus, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It is to be understood that the singular form "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more such surfaces.

The terms "having," "can have," "including," or "can include" as used in various embodiments of the present disclosure indicate the presence of a corresponding function, operation, element or the like disclosed, but are not limited to additional one or more functions, operations, elements or the like.

Furthermore, it should be understood that the terms "comprises" or "comprising," when used in various embodiments of the present disclosure, are intended to specify the presence of stated features, integers, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof.

As shown in fig. 1 to 3, the present utility model provides a molding structure of a plastic part with a deep cavity, comprising a rear mold assembly 100, wherein a molding seat 200 is provided on the rear mold assembly 100, and two first sliders 300 and two second sliders 400 are provided around the molding seat 200; the molding seat 200 is provided with a molding cavity 210, the periphery of the bottom of the molding cavity 210 is arc-shaped, the bottom of the molding cavity 210 is provided with a plurality of ejector pins 220 for ejecting plastic parts, and a molding rod 230 is embedded in the molding cavity 210. The plastic part with the deep cavity is conveniently molded by arranging the molding seat 200 and arranging the molding cavity 210 on the molding seat 200, meanwhile, as the periphery of the bottom of the molding cavity 210 is arc-shaped, the arc-shaped design can reduce the adhesion force between the plastic part and the molding seat 200, so that the plastic part is not easy to adhere in the molding cavity 210 after being molded, and the ejector pins 220 are convenient to eject the plastic part out of the molding cavity 210, so that the molding quality of the plastic part is ensured. The molding rod 230 is a through hole formed in the deep cavity, so that the molded plastic part can meet the predetermined shape.

In some embodiments, to facilitate stable installation of the molding base 200, the molding base 200 is provided with an installation groove 240, and the bottom of the molding rod 230 is fixed in the installation groove 240.

In some embodiments, in order to form a circular through hole in the plastic part, a circular hole forming portion 250 is provided on the forming seat 200.

In some embodiments, an arcuate molding portion 260 is provided around the top of the molding cavity 210. The arc-shaped forming part 260 can further reduce the adhesion force between the plastic part and the forming seat 200, so that the ejector pin 220 can eject the plastic part conveniently.

In some embodiments, the first slider 300 is provided with a protruding portion 310 on both sides, and the protruding portion 310 is provided with an inclined guide hole 311. The first slider 300 drives the demolding through the inclined guide rod, and as the size of the first slider 300 is larger, the two sides are provided with the protruding parts 310 and the inclined guide holes 311, so that the demolding forces on the two sides of the first slider 300 are uniform, and the demolding quality is ensured.

In some embodiments, a limiting protrusion 110 for limiting the limit position of the first slider 300 is provided on the rear module 100. When the notch between the two protruding parts 310 of the first slider 300 abuts against the limit protrusion 110 during the demolding process, it means that the first slider 300 has moved to the limit position, i.e. the first slider 300 has completed demolding.

In some embodiments, in order to secure the stability of the demolding of the first slider 300, the bottom of the first slider 300 is provided with a guide groove 320. The rear mold assembly 100 is provided with a guide block, which is matched with the guide groove 320 to define the position of the first slider 300, so that the stability of demolding of the first slider 300 is ensured, and the molding quality of the plastic member is ensured.

In some embodiments, the wear block 500 is provided on the side of the first slider 300 that contacts the front module. The wear-resistant block 500 is beneficial to improving the wear resistance of the first slider 300 and prolonging the service life of the first slider 300.

The foregoing is a further detailed description of the utility model in connection with specific embodiments, and it is not intended that the utility model be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the spirit of the utility model.

Claims

1. Shaping structure of plastic part with dark chamber, its characterized in that: the novel plastic molding machine comprises a rear mold assembly (100), wherein a molding seat (200) is arranged on the rear mold assembly (100), and two first sliding blocks (300) and two second sliding blocks (400) which are oppositely arranged are arranged around the molding seat (200); the forming seat (200) is provided with a forming cavity (210), the periphery of the bottom of the forming cavity (210) is arc-shaped, the bottom of the forming cavity (210) is provided with a plurality of ejector pins (220) used for ejecting plastic parts, and forming rods (230) are embedded in the forming cavity (210).

2. The molding structure of a plastic part with a deep cavity according to claim 1, wherein: the forming seat (200) is provided with a mounting groove (240), and the bottom of the forming rod (230) is fixed in the mounting groove (240).

3. The molding structure of a plastic part with a deep cavity according to claim 1, wherein: a round hole forming part (250) is arranged on the forming seat (200).

4. The molding structure of a plastic part with a deep cavity according to claim 1, wherein: arc-shaped forming parts (260) are arranged around the top of the forming cavity (210).

5. The molding structure of a plastic part with a deep cavity according to claim 1, wherein: both sides of the first sliding block (300) are provided with protruding parts (310), and inclined guide holes (311) are formed in the protruding parts (310).

6. The molding structure of the plastic part with the deep cavity according to claim 5, wherein: and a limiting protrusion (110) for limiting the limit position of the first sliding block (300) is arranged on the rear module assembly (100).

7. The molding structure of the plastic part with the deep cavity according to claim 6, wherein: the bottom of the first sliding block (300) is provided with a guide groove (320).

8. The molding structure of a plastic part with a deep cavity according to claim 1, wherein: the side surface of the first sliding block (300) contacted with the front module component is provided with a wear-resisting block (500).