CN220808341U

CN220808341U - Drainage sheet for injection mold of bicolor headlamp lampshade

Info

Publication number: CN220808341U
Application number: CN202321799401.9U
Authority: CN
Inventors: 薛蓓; 谢军
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-04-19
Anticipated expiration: 2033-07-10

Abstract

The utility model relates to the technical field of injection molds, in particular to a drainage sheet for a double-color headlamp lampshade injection mold, which comprises a drainage sheet body, wherein the drainage sheet body comprises a first end, a second end and a middle part, and the first end is of a rectangular structure. The utility model makes the horn-shaped thin wall area flat, so that the front end of the drainage sheet becomes a rectangular structure, and after the material flow passes through the pouring gate, the front end of the drainage sheet is of a rectangular structure, so that the material flow can uniformly pass through both sides and the middle of the drainage sheet when passing through the drainage sheet, the difference of the flowing states of both sides and the middle material is reduced, the plasticized plastic material can smoothly and uniformly pass through the drainage sheet to enter the product cavity, and the generation of middle clamping lines is avoided.

Description

Drainage sheet for injection mold of bicolor headlamp lampshade

Technical Field

The utility model relates to the technical field of injection molds, in particular to a drainage sheet for an injection mold of a lampshade of a bicolor headlamp.

Background

In order to enable the material to smoothly enter the product and reduce product defects, a drainage sheet structure needs to be added at the gate position. As shown in fig. 1, the front end of the drainage sheet is in a horn-shaped structure, the wall thicknesses of the two sides are consistent with those of the middle area (both are 3 mm), and in the drainage process, the material flows preferentially from the two sides to the middle to form a clamping line.

Disclosure of utility model

The utility model solves the problem that clamping lines are easy to form in the related technology, and provides the drainage sheet for the injection mold of the lampshade of the bicolor headlamp, wherein the horn-shaped thin-wall area is internally flattened, so that the front end of the drainage sheet is changed into a rectangular structure, after a material flow passes through a pouring gate, the front end of the drainage sheet is of a rectangular structure, the material flow can uniformly pass through both sides and the middle of the drainage sheet when passing through the drainage sheet, the difference of the flowing states of both sides and the middle material is reduced, the plasticized plastic material can smoothly and uniformly pass through the drainage sheet to enter a product cavity, and the generation of the middle clamping lines is avoided.

In order to solve the technical problems, the utility model is realized by the following technical scheme: the utility model provides a drainage piece for bicolor head-light lamp shade injection mold, includes the drainage piece body, the drainage piece body includes first end, second end and middle part, first end is rectangular structure.

Preferably, the first end and the second end are connected into a step-shaped structure through the middle part.

Preferably, the second end is rectangular in structure.

Preferably, the middle part is of an arc-shaped structure.

Preferably, the thickness of the first end is 3.5mm.

Compared with the prior art, the utility model has the beneficial effects that: the utility model makes the horn-shaped thin wall area flat, so that the front end of the drainage sheet becomes a rectangular structure, and after the material flow passes through the pouring gate, the front end of the drainage sheet is of a rectangular structure, so that the material flow can uniformly pass through both sides and the middle of the drainage sheet when passing through the drainage sheet, the difference of the flowing states of both sides and the middle material is reduced, the plasticized plastic material can smoothly and uniformly pass through the drainage sheet to enter the product cavity, and the generation of middle clamping lines is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of a prior art drainage sheet (arrows indicate flow direction);

FIG. 2 is a schematic structural view of a drainage sheet of the present utility model;

FIG. 3 is a top view of a drainage sheet of the present utility model (arrows indicate flow direction).

In the figure:

1. the drainage piece body, 11, first end, 12, second end, 13, mid portion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 2 to 3, a drainage piece for a double-colored headlamp lamp shade injection mold, including drainage piece body 1, drainage piece body 1 includes first end 11, second end 12 and middle part 13, receive the thin wall region of loudspeaker shape and make the flat for the first end 11 (front end) of drainage piece becomes rectangular structure, and the material flows behind the runner, because drainage piece first end 11 (front end) is rectangular structure, both sides and centre homoenergetic at the uniform velocity are passed through when the drainage piece in the material flows, reduce both sides and middle material flow state's difference, can let the plastics material that has plasticize get into the product die cavity through the drainage piece gently evenly, avoided the production of centre clamp line.

In one embodiment, the first end 11 and the second end 12 are connected in a stepped structure through the middle portion 13 to adapt to the shape of the product, wherein the second end 12 is also in a rectangular structure, and the middle portion 13 is in an arc-shaped structure.

In one embodiment, the thickness of the first end 11 is 3.5mm.

The above is a preferred embodiment of the present utility model, and a person skilled in the art can also make alterations and modifications to the above embodiment, therefore, the present utility model is not limited to the above specific embodiment, and any obvious improvements, substitutions or modifications made by the person skilled in the art on the basis of the present utility model are all within the scope of the present utility model.

Claims

1. A drainage piece for bicolor head-light lamp shade injection mold, its characterized in that: including drainage piece body (1), drainage piece body (1) include first end (11), second end (12) and intermediate part (13), first end (11) are rectangular structure, first end (11) are connected into step-like structure through intermediate part (13) with second end (12), second end (12) are rectangular structure, intermediate part (13) are arc structure.

2. The drainage sheet for a two-color headlamp housing injection mold according to claim 1, wherein: the first end (11) has a thickness of 3.5mm.