CN215849361U - Front grille injection mold - Google Patents

Abstract

The utility model discloses a front grid injection mold which comprises an upper base plate arranged on a front grid injection mold body, wherein a cavity fixing plate is arranged below the upper base plate, a cavity is arranged on the cavity fixing plate, and spark patterns processed by an electrode device are arranged in the cavity. The utility model provides a front grating injection mold which is simple in structure, solves the technical problem of single appearance of a front grating after injection molding, increases the mold space during manufacturing, is easy to control the boundary of high brightness and black and dermatoglyph, and prevents the dermatoglyph from being pasted askew.

Description

Front grille injection mold

Technical Field

The utility model belongs to the technical field of automobile exterior decorative parts, and particularly relates to a front grille injection mold.

Background

The prior spraying-free grille surface treatment mainly comprises the following three forms: 1) no treatment is carried out before and after injection molding: the whole is high-brightness black appearance, and the advantages are low cost and short working hour for single-piece forming; the disadvantage is that the appearance of the product is relatively single, such as CN185M front grid, CN210S low front grid; 2) performing thermoprinting treatment after injection molding: after injection molding, hot stamping treatment is carried out on the highlighted highlight black surface of the product, and the hot stamping device has the advantages that the hot stamping position has a decorating effect, and the appearance texture is good; the defects of the prior art are that a hot stamping procedure is added, the cost is higher, and the single piece forming time is long, such as CN210S high-level front grids, CN220C and CN 202M; 3) performing laser dermatoglyph treatment before injection molding: the laser dermatoglyph treatment has the advantages of uniform dermatoglyph, clear boundary, high processing precision and layering sense when matched with highlight black, and has the defect of high cost of the laser dermatoglyph treatment, such as an outer decorative plate of a CN202M engine hood; 4) common dermatoglyph is made before injection molding: the advantages are that the cost of the common dermatoglyph is relatively low, the front grating can have two effects of high brightness black and dermatoglyph, and the defects are that the die space is small when the common dermatoglyph is manufactured, the high brightness black and the boundary of the dermatoglyph are difficult to control, and the front grating is easy to stick askew.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a front grille injection mold which is simple in structure, solves the technical problem that the appearance of a front grille after injection molding is single, increases the mold space during manufacturing, is easy to control the boundary of high brightness and black and dermatoglyph, and prevents the dermatoglyph from being pasted askew.

The technical scheme provided by the utility model is as follows:

the utility model provides a preceding grid injection mold, is including setting up the upper plate on preceding grid injection mold body, the upper plate below is equipped with the die cavity fixed plate, be provided with the die cavity on the die cavity fixed plate, the die cavity is equipped with the spark pattern that is formed by electrode assembly processing.

Further, the electrode device comprises a spark machine and a plurality of electrodes, and the electrodes are arranged at two ends of the spark machine during operation.

Further, the spark machine is a mirror spark machine and is machined by adopting 1-3A current.

Furthermore, the electrodes are arranged in parallel, and the electrodes on the same side are connected in a linking manner.

Further, the angle of the electrode connection joint on the same side is set as the smallest process fillet.

Further, the electrodes are provided as pure copper or graphite.

Furthermore, the texture depth of the spark pattern is set to be 10-100 mu m.

Further, the cavity fixing plate and the cavity are integrally formed.

Furthermore, the cavity fixing plate is connected and fixed with the cavity in an inlaid mode.

The utility model has the beneficial effects that:

1) the electrode device is adopted in the front grating injection mold for electrode processing, so that black, high and bright lines and spark lines are simultaneously formed on the surface of the front grating in the processing process, and the problem of single appearance of the front grating is solved;

2) a plurality of electrodes are arranged in the electrode device and are processed independently, so that the processing time is shortened, and the accuracy of a processing area is improved;

3) the spark lines in the injection mold are fine and smooth in texture by adopting a low-current mode to process the electrodes;

4) the mode that the electrodes are connected to the non-appearance important surface enables the front grating to have no obvious connecting mark in the injection molding process, and the continuity and consistency of spark patterns are guaranteed;

5) the utility model has the advantages of simple structure, convenient and fast operation, safety, reliability and practicability.

Drawings

FIG. 1 is a schematic structural diagram of an injection mold body in a front grid injection mold according to the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic diagram of the structure A-A of FIG. 2;

FIG. 4 is an enlarged view of detail D of FIG. 3;

FIG. 5 is a schematic view of an arrangement of electrodes in a front grid injection mold according to the present invention;

FIG. 6 is a schematic view of an appearance product of a front grill in the injection mold for a front grill according to the present invention.

In the figure: 1. an upper base plate; 2. a cavity fixing plate; 3. a cavity; 4. an electrode; r, minimum process fillet.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It should be noted that in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 5, the front grid injection mold comprises an upper base plate 1 arranged on a front grid injection mold body, wherein a cavity fixing plate 2 is arranged below the upper base plate 1, a cavity 3 is arranged on the cavity fixing plate 2, and the cavity 3 is provided with spark patterns processed by an electrode device.

Preferably, the electrode device includes a spark machine and a plurality of electrodes 4, and the electrodes 4 are disposed at two ends of the spark machine during operation.

Preferably, the spark machine is a mirror spark machine, the spark machine is processed by adopting 1-3A current, and fine spark texture is processed by adopting a low current mode.

Preferably, the electrodes 4 are parallel to each other, and the electrodes 4 on the same side are connected to each other, so that the spark machine can process the electrodes simultaneously, the processing time is further shortened, and the working efficiency is improved.

Preferably, the angle of the joint of the electrodes 4 on the same side is set as the minimum process fillet R, and the minimum process fillet R is set at a position which is not important to appearance, so that no obvious joint mark exists in the injection molding process of the front grille, and the consistency and consistency of firestain are ensured.

In this embodiment, the electrode 4 is preferably made of pure copper or graphite, so as to improve the machining accuracy of the cavity.

As the optimization of this embodiment, the texture depth of spark pattern sets up to 10 ~ 100, the texture requirement operation of convenient different demands.

Preferably, the cavity fixing plate 2 and the cavity are integrally formed or connected and fixed in an inlaid manner, so that the electrode 4 device can conveniently process spark patterns.

The working principle of electrode device processing is adopted in the utility model: the electrode 4 processing device utilizes the electric corrosion phenomenon during the pulse spark discharge between the electrode 4 and the cavity to erode the cavity material, namely, before the front grid is injected, the electrode 4 device is used for processing the required position of the cavity on the injection mould, thereby obtaining the spark pattern on the surface of the cavity. The surface of the part which is then injection molded also has corresponding texture.

As shown in FIG. 6, the injection mold for the front grille provided with the spark lines of the utility model has two appearances of highlight black and spark lines, wherein black is a highlight black surface B, and white is a spark line surface C formed in the injection mold.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (9)

1. The utility model provides a preceding grid injection mold, is including setting up upper plate (1) on preceding grid injection mold body, its characterized in that, upper plate (1) below is equipped with die cavity fixed plate (2), be provided with die cavity (3) on die cavity fixed plate (2), die cavity (3) are equipped with the spark line who is formed by electrode device processing.

2. A front grid injection mould according to claim 1, characterized in that the electrode means comprise a spark machine and a number of electrodes (4), said electrodes (4) being arranged at both ends of the spark machine during operation.

3. The front grid injection mold according to claim 2, wherein the spark machine is a mirror spark machine and is machined by using a current of 1-3A.

4. A front grid injection mold according to claim 2, characterized in that the electrodes (4) are arranged parallel to each other, and the electrodes (4) on the same side are connected in an abutting manner.

5. A front grid injection mould according to claim 4, characterized in that the angle of the connection of the electrodes (4) on the same side is set to the smallest process radius (R).

6. A front grid injection mould according to claim 1, characterized in that the electrodes (4) are provided as pure copper or graphite.

7. The front grill injection mold according to claim 1, wherein the grain depth of the spark pattern is set to 10 to 100 μm.

8. A front grid injection mold according to claim 1, wherein the cavity fixing plate (2) is integrally formed with the cavity (3).

9. The front grid injection mold according to claim 1, wherein the cavity fixing plate (2) is connected and fixed with the cavity (3) in an inlaid manner.

Images