CN206374146U - Automatic cutting nozzle mechanism in mobile phone mold - Google Patents

Abstract

The utility model discloses an automatic water gap cutting mechanism in a mobile phone mold, which comprises a micro oil cylinder and a cutter arranged on a piston rod of the micro oil cylinder, wherein the cutter comprises a sleeve joint part, a reducing part and a cutter bar part which are sequentially connected from top to bottom, a sleeve joint hole matched with the piston rod is arranged on the upper end face of the sleeve joint part, the outline of the cross section of the cutter bar part is square, and the lower end of the cutter bar part is provided with an inclined plane with an inclination angle of 43-48 degrees to form a cutter head; the utility model has the advantages of ingenious and reasonable structural design, simple structure, small volume, small occupied space and easy installation in the die, and realizes the purpose of cutting the water gap by directly driving the cutter to stretch by the micro oil cylinder; and the cutter bar part is square, so that the action of the water cutting opening is smoother, the motion balance is good, the reliability is high, in addition, the overall structure is simple, the mold structure is effectively simplified, the size is reduced, the mold cost is reduced, the production efficiency is improved, and the wide popularization and the use are facilitated.

Description

Automatic cutting nozzle mechanism in mobile phone mold

technical field

The utility model relates to the technical field of moulds, in particular to a mobile phone in-mold automatic nozzle removal mechanism applied in the mould.

Background technique

Mold is an indispensable and important equipment in injection molding. Injection molding is a method of injecting hot-melt plastic material into a closed molding space with the desired shape in the mold at high speed, and after the plastic material cools and solidifies, the mold is opened to eject the solidified plastic processed product to obtain a molded product. . Since the injection molding method has the characteristics of low molding cost, short molding cycle, simple molding process, and easy molding of plastic products with complex shapes, it is widely used in the field of plastic product manufacturing.

In injection molding, plastic parts have a gating system, for example: the large nozzle is directly into the water, so after the product is formed, it is inevitable to remove the nozzle. According to the traditional method, after molding, the nozzle must be removed. The traditional technology is to manually remove or add a water cut device directly in the mold. If manual is used, it will consume more time and labor, which not only greatly prolongs the production cycle, but also has low efficiency and high labor intensity, which makes employees easy to fatigue; A water cutting device is added to the mold. The structure of the existing water cutting device is relatively complicated, and most of them use the inclined block linkage mechanism to realize the purpose of automatic water cutting. , high manufacturing cost.

Utility model content

In view of the above deficiencies, the purpose of this utility model is to provide a mobile phone in-mold automatic nozzle removal mechanism with simple and reliable structural design, small volume, easy installation in the mold, and quick removal of the nozzle.

In order to achieve the above purpose, the technical solution provided by the utility model is: a mobile phone in-mold automatic cutting nozzle mechanism, which includes a miniature oil cylinder and a cutting knife arranged on the piston rod of the miniature oil cylinder, the cutting knife includes pressing from the top The socket part, the narrowing part and the knife rod part are connected successively in the bottom order. The upper end surface of the socket part is provided with a socket hole matching the piston rod. The cross section of the knife rod part The outline is square, and the lower end of the cutter bar is provided with an inclined surface with an inclination angle of 43-48 degrees to form a cutter head.

As an improvement of the utility model, the cross-sectional profile of the socket part is circular.

As an improvement of the utility model, the inclination angle of the inclined surface is 45 degrees.

The beneficial effects of the utility model are as follows: the utility model has an ingenious and reasonable structural design, and realizes the purpose of cutting the water outlet by directly driving the cutter to expand and contract through the miniature oil cylinder. The rod part is square, which makes the movement of the nozzle smoother, the movement balance is good, and the reliability is high. In addition, the overall structure is simple, which effectively simplifies the mold structure, reduces the volume, reduces the cost of the mold, and improves the production efficiency, which is conducive to widespread use.

Below in conjunction with accompanying drawing and embodiment, the utility model is further described.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of the structure of the tool bar in the utility model.

Fig. 3 is a schematic structural view of the utility model when in use.

detailed description

Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of mobile phone mold in-mold automatic cutting nozzle mechanism provided by the present embodiment comprises a miniature oil cylinder 1 and a cutter 2 arranged on the piston rod of the miniature oil cylinder 1, and the cutter 2 It includes a socket part 21, a narrowing part 22 and a knife rod part 23 which are sequentially connected from top to bottom, and the upper end surface of the socket part 21 is provided with a socket hole suitable for the piston rod, Preferably, the cross-sectional profile of the socket portion 21 is preferably circular, and has high structural strength.

The cross-sectional profile of the cutter bar portion 23 is square, which makes the movement of the water incision more smooth, with good movement balance and high reliability. The lower end of the cutter bar 23 is provided with an inclined surface 231 with an inclination angle a of 43-48 degrees to form a cutter head. Preferably, the inclination angle of the inclined surface 231 is 45 degrees, which has a good cutting effect. Preferably, a plane 232 with a width of 0.15 mm is provided at the end of the cutter head, so that the nozzle 3 is separated from the injection molded product 4 .

When in use, the mobile phone in-mold automatic nozzle removal mechanism of the present invention is installed on the mould, corresponding to the position of the junction of the nozzle 3 and the injection molded product 4. When the nozzle 3 needs to be cut, the miniature oil cylinder 1 directly drives the cutter 2 to stretch out to realize automatic cutting. The purpose of the water cutting port is easy to operate, good working stability, and greatly improve production efficiency.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model. As described in the above embodiments of the present invention, other molds obtained by adopting the same or similar structure are within the protection scope of the present invention.

Claims (3)

1. A mobile phone mould-in-mold automatic cutting spout mechanism, it is characterized in that it comprises a miniature oil cylinder and a cutting knife arranged on the piston rod of the miniature oil cylinder, and the cutting knife comprises socket joints connected sequentially from top to bottom part, a narrowing part and a knife rod part, the upper end surface of the socket part is provided with a socket hole matching with the piston rod, the cross-sectional profile of the knife rod part is square, and the knife rod part The lower end of the blade is provided with an inclined surface with an inclination angle of 43-48 degrees to form a cutter head. 2. The mobile phone in-mold automatic nozzle removal mechanism according to claim 1, characterized in that: the cross-sectional profile of the socket part is circular. 3. The mobile phone in-mold automatic nozzle removal mechanism according to claim 1 or 2, characterized in that: the inclination angle of the inclined surface is 45 degrees.