CN220008654U

CN220008654U - Small-spacing hot runner system

Info

Publication number: CN220008654U
Application number: CN202321255575.9U
Authority: CN
Inventors: 陈永刚
Original assignee: Xujing Precision Mould Dongguan Co ltd
Current assignee: Xujing Precision Mould Dongguan Co ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-11-14
Anticipated expiration: 2033-05-23

Abstract

The utility model discloses a small-spacing hot runner system, which comprises at least one group of air cylinders; the pushing plate is arranged at the output end of the air cylinder, and a plurality of needle valves are connected below the pushing plate; the split plate is provided with at least one group of hot nozzle bodies below, each group of hot nozzle bodies is provided with at least three groups of nozzle cores, and the nozzle cores are adjacently arranged; the top of the positioning ring is fixedly connected with a die of the injection molding machine, a connecting pipe is connected below the positioning ring, and the bottom of the connecting pipe is communicated with the flow distribution plate. The needle valve penetrates through the flow dividing plate, the needle valve and the nozzle core are arranged one by one, and the air cylinder drives the needle valve to move up and down so as to control the opening or closing of the nozzle core. At least three groups of nozzle cores are arranged on each hot nozzle body, and the nozzle cores are adjacently arranged, so that the utility model not only can overcome the defect that a hot nozzle cannot be arranged due to small spacing, but also can improve the injection molding period when a plurality of nozzle cores work together, and save time.

Description

Small-spacing hot runner system

Technical Field

The utility model relates to the technical field of hot runners, in particular to a small-spacing hot runner system.

Background

A hot runner (Hot Runner Systems) is a heating assembly system used in injection molds to inject melted plastic particles into the cavity of the mold. In the prior art, for some specific molds, the molds are provided with a plurality of cavities, the space between the plurality of cavities is smaller, and the distance between each hot nozzle of the hot runner is larger than the distance between the cavities, so that the problem that the hot nozzle cannot be put down to the mold cavity can occur.

Disclosure of Invention

Based on the above, the utility model aims at providing a small-spacing hot runner system, which has small spacing between the nozzle cores, can overcome the defect that the nozzle cannot be opened due to the small spacing, can improve the injection molding period and saves time.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a small-spacing hot runner system, comprising:

at least one group of cylinders;

the pushing plate is arranged at the output end of the air cylinder, and a plurality of needle valves are connected below the pushing plate;

the split plate is provided with at least one group of hot nozzle bodies below, each group of hot nozzle bodies is provided with at least three groups of nozzle cores, and the nozzle cores are adjacently arranged;

the top of the positioning ring is fixedly connected with a die of the injection molding machine, a connecting pipe is connected below the positioning ring, and the bottom of the connecting pipe is communicated with the flow distribution plate.

The needle valve penetrates through the flow dividing plate, the needle valve and the nozzle core are arranged one by one, and the air cylinder drives the needle valve to move up and down so as to control the opening or closing of the nozzle core.

Preferably, a through groove is formed in the center of the push plate, and the connecting pipe penetrates through the through groove.

Preferably, the flow dividing plate is provided with a plurality of through holes, and the needle valve passes through the through holes one by one.

Preferably, the upper surface and the lower surface of the splitter plate are both provided with annular mounting grooves, and heating wires are arranged in the mounting grooves.

Preferably, the upper surface and the lower surface of the flow dividing plate are further provided with cutouts, and the cutouts communicate with the mounting groove.

Preferably, a locating pin is further arranged at the bottom of the flow dividing plate.

Preferably, the cylinders are provided with four groups and are arranged above the push plate in a regular distribution.

Preferably, the hot nozzle body is provided with four groups.

The beneficial effects of the utility model are as follows:

the utility model provides a small-spacing hot runner system, wherein at least three groups of nozzle cores are arranged on each hot nozzle body, and the nozzle cores are adjacently arranged, so that compared with the prior art that one nozzle core is correspondingly arranged on one hot nozzle body, the utility model not only can overcome the defect that the hot nozzle cannot be arranged due to small spacing, but also can improve the injection molding period when a plurality of nozzle cores work together, and saves time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a small-pitch hot runner system according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of another visual structure of a small-pitch hot runner system according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a flow dividing plate according to an embodiment of the present utility model.

In the figure:

1. a cylinder; 2. a push plate; 3. a valve needle; 4. a diverter plate; 41. a via hole; 42. a mounting groove; 43. a notch; 44. a positioning pin; 5. a hot nozzle body; 6. a chewing core; 7. a positioning ring; 8. a connecting pipe; 9. and (5) heating wires.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. 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 fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 and 3, the present utility model provides a small-pitch hot runner system, comprising: at least one group of cylinders 1; in the embodiment of the utility model, the cylinders 1 are provided with four groups, and are arranged above the push plate 2 in a regular distribution manner, so that the regular distribution is beneficial to stability; the pushing plate 2 is arranged at the output end of the air cylinder 1, and a plurality of needle valves are connected below the pushing plate 2; the split plate 4 is provided with at least one group of hot nozzle bodies 5 below, in the embodiment of the utility model, the hot nozzle bodies 5 are provided with four groups, each group of hot nozzle bodies 5 is provided with at least three groups of nozzle cores 6, and the nozzle cores 6 are adjacently arranged; and the top of the positioning ring 7 is fixedly connected with a die of an injection molding machine, a connecting pipe 8 is connected below the positioning ring, and the bottom of the connecting pipe 8 is communicated with the flow distribution plate 4. The needle valve passes through the flow dividing plate 4, the needle valve and the nozzle core 6 are arranged one by one, and the cylinder 1 drives the needle valve 3 to move up and down so as to control the opening or closing of the nozzle core 6. Specifically, in the embodiment of the utility model, the pushing plate 2 is driven to move up and down by driving the air cylinder 1, and the pushing plate 2 drives the valve needle 3 to move up and down, so that the opening or closing of the nozzle core 6 is controlled. At least three groups of nozzle cores 6 are arranged on each hot nozzle body 5, and the nozzle cores 6 are adjacently arranged, so that compared with the prior art that one nozzle core 6 is correspondingly arranged on one hot nozzle body 5 at the position interval between the nozzle cores 6, the hot nozzle has the advantages that the defect that a hot nozzle cannot be arranged due to small interval is overcome, the injection molding cycle can be improved when a plurality of nozzle cores 6 work together, and the time is saved.

As a preferred mode of the embodiment of the present utility model, in order to facilitate the connection pipe 8 to communicate with the diverter plate 4, a through slot (not shown) is provided in the center of the push plate 2, and the connection pipe 8 passes through the through slot.

As a preferred mode of the embodiment of the present utility model, as shown in fig. 1 to 3, in order to enable the needle 3 to pass through the flow dividing plate 4 and to be movable up and down with respect to the flow dividing plate 4, the flow dividing plate 4 is provided with a plurality of through holes 41, and the needle passes through the through holes 41 one by one.

As a preferred mode of the embodiment of the present utility model, as shown in fig. 3, in order to heat the diverter plate 4, annular mounting grooves 42 are provided on both the upper surface and the lower surface of the diverter plate 4, and heating wires 9 are provided in the mounting grooves 42. Preferably, the upper surface and the lower surface of the diverter plate 4 are further provided with a slit 43, and the slit 43 communicates with the mounting groove 42. The position of the notch 43 is arranged, and the heating wire 9 can extend out of the mounting groove 42, so that the heating wire 9 is convenient to be connected with an external power supply.

As a preferred mode of the embodiment of the present utility model, as shown in fig. 1 and 2, in order to facilitate positioning of the diverter plate 4, the bottom of the diverter plate 4 is further provided with a positioning pin 44.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. A small pitch hot runner system, comprising:

at least one group of cylinders;

the top of the positioning ring is fixedly connected with a die of the injection molding machine, a connecting pipe is connected below the positioning ring, and the bottom of the connecting pipe is communicated with the flow dividing plate;

2. The small-pitch hot runner system according to claim 1, wherein the push plate is centrally provided with a through slot through which the connecting tube passes.

3. The small-pitch hot runner system according to claim 1, wherein the splitter plate is provided with a plurality of through holes, and the needle valve passes through the through holes one by one.

4. A small-pitch hot runner system according to any of claims 1 to 3 wherein the upper and lower surfaces of the manifold are each provided with annular mounting grooves in which heater wires are disposed.

5. The small pitch hot runner system according to claim 4, wherein said upper surface and said lower surface of said manifold are further provided with cutouts, said cutouts communicating with said mounting slots.

6. The small pitch hot runner system according to claim 4, wherein the bottom of the manifold is further provided with a locating pin.

7. The small-pitch hot runner system according to claim 1, wherein the cylinders are provided with four groups and are arranged above the push plate in a regular arrangement.

8. The small pitch hot runner system of claim 1, wherein the nozzle body is provided with four sets.