Decorating part exhaust structure capable of avoiding vacuum plating defects

Abstract

The utility model relates to the technical field of decorative part injection molding, in particular to an exhaust structure for a decorative part capable of avoiding vacuum plating defects, which comprises a rear mold core, an insert is embedded in the rear mold core, a left product through groove is formed in one side of the surface of the insert, an exhaust hole is formed in the surface of the left product through groove, and the exhaust hole is used for exhaust work; a right product through groove is formed in the surface of the insert and located on one side of the left product through groove, the surface of the right product through groove is connected with an exhaust port, and the exhaust port is matched with the exhaust hole to be used for exhaust work. According to the utility model, the exhaust is improved and designed as a rear mold, a large insert is made at the peripheral position of a product, exhaust is processed at the peripheral position of the insert, and exhaust on parting is canceled, so that air trapping and burrs caused by parting are avoided, and no defect exists when the product is subjected to vacuum plating.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of decoration piece injection moulding, in particular to an exhaust structure for decoration piece to avoid vacuum plating defects. BACKGROUND

[0002] The decoration piece is a kind of accessory for decoration, and the decoration piece needs to be injection moulded during production, injection moulding is the main forming equipment for making various shape plastic products by thermoplastic plastic or thermosetting material using plastic forming mould, and the existing decoration piece product is designed as parting surface exhaust structure, the product parting surface exhaust of injection moulding production has tiny burr, and the good product and the defective product cannot be basically distinguished, and the tiny burr of product parting surface exhaust after vacuum plating is very obvious. UTILITY MODEL CONTENT

[0003] The utility model aims at providing an exhaust structure for decoration piece to avoid vacuum plating defects to solve the problem that the existing decoration piece is parting surface exhaust structure, and the tiny burr of exhaust position is very obvious.

[0004] To achieve the above object, the utility model provides the following technical scheme: an exhaust structure for decoration piece to avoid vacuum plating defects, including rear mould, the inside of rear mould is inlaid with insert, one side of insert surface is provided with left product through slot, and the surface of left product through slot is provided with exhaust hole, and the exhaust hole is used for exhaust work;The surface of insert and located at one side of left product through slot is provided with right product through slot, and the surface of right product through slot is connected with exhaust port, and the exhaust port is used for exhaust work in cooperation with exhaust hole.

[0005] Preferably, the side of the surface of the rear mould is provided with a mounting hole, and the mounting hole is used for the mounting work of the rear mould.

[0006] Preferably, the edge position of the surface of the insert is integrally injection moulded with a convex strip, and the convex strip is used to increase the structural strength of the left product through slot.

[0007] Preferably, the surface of the rear mould and located at one side of the right product through slot is provided with a lower product through slot.

[0008] Preferably, the surface of the rear mould is connected with a plurality of exhaust channels, and the exhaust channels facilitate the exhaust work during injection moulding.

[0009] Preferably, the surface of the rear mould and located at one side of the lower product through slot is provided with a bottom product through slot.

[0010] Compared with the prior art, the beneficial effect of the decorative part exhaust structure for avoiding vacuum plating defects is that: the decorative part exhaust structure for avoiding vacuum plating defects is provided with an exhaust hole, an exhaust port and an exhaust channel, the product circle position of the rear mold is enlarged by improving the design of the exhaust, and the exhaust of the insert is processed, so that the exhaust of the parting is cancelled, thus solving the problem of gas accumulation and the burr of the parting, and the product will not have defects during vacuum plating. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a three-dimensional appearance structure schematic diagram of the utility model;

[0012] Fig. 2 It is an insert front view structure schematic diagram of the utility model;

[0013] Fig. 3 It is an insert rear view structure schematic diagram of the utility model.

[0014] In the figure: 1, rear mold core; 11, mounting hole; 2, insert; 21, convex strip; 3, left product through slot; 31, exhaust hole; 4, right product through slot; 41, exhaust port; 5, lower product through slot; 6, exhaust channel; 7, bottom product through slot. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, in addition, the terms "first", "second", "third", "up, down, left, right" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Meanwhile, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0016] The structure of the decorative part exhaust structure for avoiding vacuum plating defects provided by the utility model is as shown in Figs. 1 to 3As shown, including the back die 1, the side of the back die 1 surface is provided with mounting hole 11, the mounting hole 11 is used for the installation of the back die 1, the inside of the back die 1 is embedded with insert 2, the surface of the insert 2 is provided with left product through slot 3 on one side, and the surface of the left product through slot 3 is provided with exhaust hole 31, the exhaust hole 31 is used for exhaust work, the edge position of the surface of the insert 2 is integrally injection molded with convex strip 21, the convex strip 21 is used to increase the structural strength of the left product through slot 3; the surface of the insert 2 and located at the left product through slot 3 one side is provided with right product through slot 4, and the surface of the right product through slot 4 is connected with exhaust port 41, the exhaust port 41 is used for exhaust work in cooperation with the exhaust hole 31, the surface of the back die 1 and located at the right product through slot 4 one side is provided with lower product through slot 5, the surface of the back die 1 is connected with a plurality of exhaust channels 6, the exhaust channel 6 is convenient for exhaust work during injection molding, and the surface of the back die 1 and located at the lower product through slot 5 one side is provided with bottom product through slot 7.

[0017] At present, the product design is a parting surface exhaust structure, and the product produced by injection molding has a small burr at the parting surface exhaust position, and the good and bad of the material cannot be basically distinguished, and the small burr at the exhaust position of the product parting surface after vacuum plating is very obvious; and the utility model improves the design exhaust for the back die, makes a large insert at the product circumference position, processes the exhaust around the insert, cancels the exhaust on the parting surface, solves the difficult gas and the burr on the parting surface, and the product will not have defects when vacuum plating.

[0018] Working principle: the utility model improves the design exhaust for the back die, makes a large insert at the product circumference position, processes the exhaust around the insert, cancels the exhaust on the parting surface, solves the difficult gas and the burr on the parting surface, and the product will not have defects when vacuum plating.

[0019] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A decoration part exhaust structure for avoiding vacuum plating defects, comprising a back mold core (1), characterized in that: The inside of the back mould core (1) is inlaid with an inlay piece (2), one side of the surface of the inlay piece (2) is provided with a left product through groove (3), and the surface of the left product through groove (3) is provided with an exhaust hole (31) for exhaust work.

2. The exhaust structure for a decorative member according to claim 1, wherein: The side of the surface of the back mould core (1) is provided with a mounting hole (11) for the mounting work of the back mould core (1).

3. The exhaust structure for a decorative member according to claim 1, wherein: The edge position of the surface of the inlay piece (2) is integrally injection molded with a convex strip (21) for increasing the structural strength of the left product through groove (3).

4. The exhaust structure for a decorative member according to claim 1, wherein: The surface of the back mould core (1) and one side of the right product through groove (4) are provided with a lower product through groove (5).

5. The exhaust structure for a decorative member according to claim 1, wherein: The surface of the back mould core (1) is connected with a plurality of exhaust channels (6) for facilitating the exhaust work during injection molding.

6. The exhaust structure for a decorative member according to claim 1, wherein: The surface of the back mould core (1) and one side of the lower product through groove (5) are provided with a bottom product through groove (7).

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