CN217803069U

CN217803069U - Hot runner thin water gap turning structure of injection mold

Info

Publication number: CN217803069U
Application number: CN202221979350.3U
Authority: CN
Inventors: 何海鸥; 宋磊; 颜伟
Original assignee: Shenzhen Sanjing Mould Co ltd
Current assignee: Shenzhen Sanjing Mould Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-15
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses an injection mold's hot runner changes thin mouth of a river structure, include: the hot nozzle, the flow dividing plate, the two nozzles, the two cold runners and the plurality of fine water gaps are sequentially arranged from top to bottom, the hot nozzle is vertically fixed at the top of the flow dividing plate, the two nozzles are vertically fixed at the bottom of the flow dividing plate, and the interiors of the hot nozzle, the flow dividing plate and the nozzles are communicated with one another to form the hot runner of the mold. The two cold runners are respectively connected with the discharge port of the nozzle, a plurality of thin water ports are vertically arranged, the upper end of each thin water port is connected with the corresponding cold runner, and the lower end of each thin water port is communicated with the sprue of the product cavity. The utility model has the advantages that: this hot runner changes thin mouth of a river structure is because thin mouth of a river occupies that mould space is little, and is applicable complicated in the product structure, and the limited injection mold in structure and the space of mould, compare in the flip-chip mould from the inboard structure of advancing gluey, and the cost is lower, and the mould structure is simpler, and product surface gas line also adjusts more easily, and production cycle is shorter, and product shaping quality is better.

Description

Hot runner thin water gap turning structure of injection mold

Technical Field

The utility model relates to an injection mold's technical field, in particular to injection mold's hot runner changes thin mouth of a river structure.

Background

In the mold manufacturing industry, the glue feeding mode of the existing mold generally comprises direct glue feeding of a hot runner and glue feeding of a cold runner after the hot runner is transferred to a cold runner. However, some products have complex structures and are limited by the structure and space of the mold, and the structure adopting two glue feeding modes of the existing hot runner and the existing cold runner cannot meet the molding requirement. If adopt the flip-chip mould to advance gluey structure from the inboard, the cost is high again, and the mould structure can be more complicated, and product surface gas line also is more difficult to transfer, seriously influences production cycle length and quality.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model provides an injection mold's hot runner changes thin mouth of a river structure.

In order to achieve the above object, the utility model provides an injection mold's hot runner changes thin mouth of a river structure, include: the hot nozzle, the flow distribution plate, the two nozzles, the two cold runners and the plurality of fine water gaps are sequentially arranged from top to bottom, the hot nozzle is vertically fixed at the top of the flow distribution plate, the two nozzles are vertically fixed at the bottom of the flow distribution plate, and the interiors of the hot nozzle, the flow distribution plate and the nozzles are mutually communicated to form the hot runner of the mold. The two cold runners are respectively connected with the discharge port of the nozzle, a plurality of thin water ports are vertically arranged, the upper end of each thin water port is connected with the cold runner, and the lower end of each thin water port is communicated with a pouring gate of the product cavity.

Preferably, the top end face and the bottom end face of the flow distribution plate are respectively embedded with a heating ring, and the lower ends of the heating nozzles and the upper ends of the two nozzles are respectively arranged on the inner sides of the heating rings.

Preferably, the cold runner is a cross cold runner formed by intersecting at least two branch runners, the discharge port of the nozzle is connected to the intersection of the two branch runners, and the upper end of the fine nozzle is connected to the end of the branch runner.

Preferably, two runners of the cross-shaped cold runner are both arc-shaped.

Preferably, a convex ring for forming a product surface sink groove is arranged on the inner wall of a product cavity of the mold, and the pouring gate is positioned in the convex ring.

Compared with the prior art, the beneficial effects of the utility model reside in that: this hot runner changes thin mouth of a river structure is because thin mouth of a river occupies that mould space is little, and is applicable complicated in the product structure, and the structure and the limited injection mold in space of mould compare in flip-chip mould from the inboard structure of advancing gluey, and the cost is lower, and the mould structure is simpler, and product surface gas line also adjusts more easily, and production cycle is shorter, and product shaping quality is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of a molded product according to an embodiment of the present invention;

fig. 2 is a cross-sectional structure view of the connection between the fine nozzle and the product gate according to an embodiment of the present invention;

the purpose of the present invention is to provide a portable electronic device, which can be easily and conveniently operated.

Detailed Description

The utility model provides an injection mold's hot runner changes thin mouth of a river structure.

Referring to fig. 1-2, fig. 1 is a structural diagram of the product formed according to an embodiment of the present invention, and fig. 2 is a structural diagram of a cross section of a connection between a fine nozzle and a product gate according to an embodiment of the present invention.

As shown in fig. 1-2, in the embodiment of the present invention, the hot runner-to-thin water gap structure of the injection mold comprises: the hot runner mold comprises a hot nozzle 1, a splitter plate 2, two nozzles 3, two cold runners 4 and a plurality of fine water gaps 5 which are sequentially arranged from top to bottom, wherein the hot nozzle 1 is vertically fixed at the top of the splitter plate 2, the two nozzles 3 are vertically fixed at the bottom of the splitter plate 2, and the interiors of the hot nozzle 1, the splitter plate 2 and a nozzle are mutually communicated to form the hot runner of the mold. The two cold runners 4 are respectively connected with the discharge port of the nozzle 3, the plurality of thin water gaps 5 are vertically arranged, the upper ends of the thin water gaps 5 are connected with the cold runners 4, and the lower ends of the thin water gaps 5 are communicated with a pouring gate of a product cavity.

This hot runner changes 5 structures of thin mouth of a river because thin mouth of a river 5 occupies that the mould space is little, and is applicable complicated in the product structure, and the limited injection mold in structure and the space of mould, compare in the flip-chip mould from the inboard structure of advancing gluey, the cost is lower, and the mould structure is simpler, and product surface gas line also adjusts more easily, and production cycle is shorter, and product shaping quality is better. Because the hot nozzle 1, the nozzle 3 and the fine nozzle 5 are vertically arranged, the flowing direction of the sizing material is consistent with the direction of injection pressure, the overall length of the hot runner can be shortened, the injection pressure of the injection molding machine table can still ensure enough injection pressure without setting large injection pressure, and the adjustment space of the product process is larger. Shortening the overall length of the hot runner can reduce the overall size and weight of the die, and meet the requirements of miniaturization and lightweight design of the die. And a fine water gap 5 is adopted for pouring, and the mark of the pouring gate on the surface of the product is very small, so that the influence on the integral appearance of the product is small.

Further, in this embodiment, as shown in fig. 1, heating rings 6 are embedded on the top end surface and the bottom end surface of the splitter plate 2, the heating rings 6 may be electric heating rings, and the lower end of the hot nozzle 1 and the upper ends of the two nozzles 3 are both disposed inside the heating rings 6, so as to ensure the temperature of the rubber material in the hot nozzle 1 and the nozzles 3, so that the rubber material flows more smoothly in the hot nozzle 1 and the nozzles 3, and the quality of the molded product is better.

Further, in this embodiment, as shown in fig. 1, the cold runner 4 is a cross-shaped cold runner 4 formed by intersecting at least two branch runners 7, the discharge port of the nozzle 3 is connected to the intersection of the two branch runners 7, and the upper end of the thin water port 5 is connected to the end of the branch runner 7, so that the same nozzle 3 can be connected to a plurality of thin water ports 5, thereby realizing the pouring of products in different directions, ensuring the uniformity of each part during the product molding, shortening the molding time, and improving the molding efficiency.

Further, in this embodiment, as shown in fig. 1, the two runners 7 of the cross-shaped cold runner 4 are both arc-shaped, so that the glue at the front end of the cold runner 4 does not suddenly flow toward the thin water gap 5 under the action of the injection pressure to separate from the glue at the rear end, which results in material shortage or poor air bubbles in the injection-molded product.

Further, in this embodiment, as shown in fig. 2, a convex ring for forming a product surface sink groove 8 is arranged on the inner wall of the product cavity of the mold, and the gate 9 is located in the convex ring, so that after the product is formed, the gate 9 is located in the sink groove 8 on the product surface, the gate 9 is effectively shielded, the overall appearance of the product is not affected, and the secondary processing in the production process of the product is reduced.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all be in the utility model discloses a under the design, utilize the equivalent structure transform of what the content of the description and the attached drawing was done, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection is within range.

Claims

1. The utility model provides an injection mold's hot runner changes thin mouth of a river structure which characterized in that includes: the hot nozzle, the flow dividing plate, the two nozzles, the two cold runners and the plurality of fine water gaps are sequentially arranged from top to bottom, the hot nozzle is vertically fixed at the top of the flow dividing plate, the two nozzles are vertically fixed at the bottom of the flow dividing plate, and the interiors of the hot nozzle, the flow dividing plate and the nozzles are mutually communicated to form the hot runner of the mold; the two cold runners are respectively connected with the discharge port of the nozzle, a plurality of thin water gaps are vertically arranged, the upper ends of the thin water gaps are connected with the cold runners, and the lower ends of the thin water gaps are communicated with a pouring gate of a product cavity.

2. The hot runner slender water gap structure of the injection mold as claimed in claim 1, wherein heating rings are embedded on both the top end surface and the bottom end surface of the flow distribution plate, and the lower ends of the hot nozzles and the upper ends of the two nozzles are arranged inside the heating rings.

3. The hot runner slender nozzle structure of injection mold according to claim 1, wherein said cold runner is a cross-shaped cold runner formed by the intersection of at least two branch runners, the discharge port of said nozzle is connected to the intersection of two said branch runners, and the upper end of said slender nozzle is connected to the end of said branch runner.

4. The hot runner slender water gap structure of claim 3, wherein both of said branch runners of said cross-shaped cold runner are arc-shaped.

5. The hot runner nozzle assembly of an injection mold as claimed in any one of claims 1 to 4, wherein the inner wall of the product cavity of the mold is provided with a convex ring for forming a sink on the surface of the product, and the gate is located in the convex ring.