An improved internal core-pulling structure

Abstract

This utility model discloses an improved internal core-pulling structure, including a mold core, three slanted ejectors that slide evenly along the circumference of the mold core, and a base. The top surface of the base has mating holes, and the bottom surface of the mold core has positioning pins that match the mating holes. The positioning pins fit into the mating holes, and the mold core and base are detachably connected. This utility model can minimize the length of the mold core, thereby shortening the length of the slanted ejectors, reducing the risk of deformation during processing, improving the yield rate, and saving processing time and costs.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to an improved internal core-pulling structure. Background Technology

[0002] When using molds to form liquor bottle caps, the three-section internal snap-fit ​​mechanism requires an internal core-pulling structure for molding. For example... Figure 1 As shown, the internal core-pulling structure includes a mold core 1, with three angled ejectors 2 slidingly fitted evenly along the circumference of the mold core 1. The problem with this internal core-pulling structure is that when the molded product is too tall, the length of the mold core and the angled ejectors will be too long, while the thickness of the angled ejectors is relatively thin. During the processing of the angled ejectors, heat treatment, wire cutting, and other processes are very easy to deform, resulting in poor fit between the mold core and the angled ejectors, which can easily cause jamming or defects such as burrs on the molded product.

[0003] Therefore, addressing the shortcomings of the existing technologies has become the focus of efforts for those skilled in the field. Utility Model Content

[0004] The purpose of this invention is to provide a fishing device that can completely solve the shortcomings of the prior art.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An improved internal core-pulling structure includes a mold core, three inclined tops that slide evenly along the circumference of the mold core, and a base. The top surface of the base has a mating hole, and the bottom surface of the mold core has a positioning post that matches the mating hole. The positioning post is fitted into the mating hole, and the mold core and the base are detachably connected.

[0007] Furthermore, the positioning post has a sealing groove along its circumference, and a sealing ring is installed in the sealing groove.

[0008] Furthermore, screw holes are provided on the bottom surface of the base and the bottom surface of the mold core, and the two are connected by screws.

[0009] Compared with the prior art, the beneficial effects of this utility model are: it can shorten the length of the mold core to the maximum extent, thereby shortening the length of the inclined ejector, thus reducing the risk of deformation of the inclined ejector during processing, improving the pass rate, and saving processing time and processing costs. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0011] Figure 2 This is an exploded structural diagram of the present invention;

[0012] Figure 3 This is a cross-sectional view of the present invention. Detailed Implementation

[0013] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0014] like Figures 1 to 3 As shown, an improved internal core-pulling structure includes a mold core 1 and a base 2. Three inclined tops 3 are evenly slidably fitted along the circumference of the mold core 1. The top surface of the base 2 has a fitting hole 4. The bottom surface of the mold core 1 is provided with a positioning post 5 that matches the fitting hole 4. The positioning post 5 fits in the fitting hole 4. The mold core 1 and the base 2 are detachably connected.

[0015] In this embodiment, the positioning post 5 has a sealing groove along its circumference, and a sealing ring 6 is installed in the sealing groove. The sealing ring 6 is used for water channel sealing.

[0016] In this embodiment, screw holes 7 are provided on the bottom surface of the base 2 and the bottom surface of the mold core 1 respectively, and the two are connected by screws.

[0017] This invention adds a base 2, which can shorten the length of the mold core 1 to the maximum extent, thereby shortening the length of the inclined ejector 3. This reduces the risk of deformation of the inclined ejector 3 during processing, improves the pass rate, and saves processing time and processing costs.

[0018] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspect lies in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0019] Those skilled in the art will understand that modules in the device of the embodiments can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components. Except where at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or device so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that serves the same, equivalent, or similar purpose.

[0020] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this invention and form different embodiments.

[0021] It should be noted that the above embodiments are illustrative of the present invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved internal core-pulling structure, comprising a mold core, and three inclined ejectors that slide uniformly along the circumference of the mold core, characterized in that: It also includes a base, with a mating hole on the top surface of the base, and a positioning post on the bottom surface of the mold core that matches the mating hole. The positioning post fits into the mating hole, and the mold core and the base are detachably connected.

2. The improved internal core-pulling structure according to claim 1, characterized in that: The positioning post has a sealing groove along its circumference, and a sealing ring is installed in the sealing groove.

3. The improved internal core-pulling structure according to claim 1, characterized in that: Screw holes are provided on the bottom surface of the base and the bottom surface of the mold core, and the two are connected by screws.

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