CN214726128U

CN214726128U - Hot runner micro needle valve hot nozzle structure

Info

Publication number: CN214726128U
Application number: CN202120319926.2U
Authority: CN
Inventors: 祝理铭
Original assignee: Chongqing Kaishengming Mould Technology Co ltd
Current assignee: Chongqing Kaishengming Mould Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-11-16
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a hot runner micro needle valve hot nozzle structure, which comprises a hot nozzle heating main body and a mould, wherein the hot nozzle heating main body and the mould are arranged in a bottle shape, the front end of the hot nozzle heating main body is fixedly connected with a steel ring, the hot nozzle heating main body is embedded with a fixedly connected valve needle, the valve needle penetrates through the mould, and the hot nozzle heating main body is not contacted with the mould; the outer radius of the die is less than 16mm, and the concentric circles of the heating main body of the hot nozzle and the valve needle are within 0.008 mm. The utility model integrates the hot nozzle and the valve needle structure, and cancels the common hot nozzle head and valve needle separation structure, so that the hot nozzle can be smaller, and the die arrangement position is reduced; meanwhile, the front end sealing position adopts a steel ring to be tightly sleeved on the hot nozzle heating main body, so that heat is reduced to be transferred to the die, and the energy waste is reduced.

Description

Hot runner micro needle valve hot nozzle structure

Technical Field

The utility model relates to a hot mouth field of needle valve especially relates to the miniature needle valve hot mouth structure of hot runner.

Background

The valve needle type hot nozzle has good color changing performance, is suitable for most plastics, and has good flowing performance, extremely fine gate marks and the like. The valve gated hot runner system plastic mold is the most complex in structure. The plastic mold has the same structure as a common multi-head hot runner system plastic mold, and a set of valve needle transmission device is additionally arranged to control the opening and closing movement of the valve needle. The transmission device is equivalent to a hydraulic oil cylinder, and a hydraulic device of an injection machine is connected with a mould to form a hydraulic loop, so that the opening and closing movement of a valve needle is realized, and molten plastic is controlled to be injected into a cavity.

The existing needle valve hot nozzle is mostly arranged by separating the hot nozzle and the valve needle, so that the hot nozzle and the valve needle are easy to replace and maintain, but the volume of the device is increased; meanwhile, the conventional hot nozzle is generally in direct contact with a mold, a large amount of heat energy is transferred to the mold, and a large amount of energy is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hot nozzle structure of a hot runner micro needle valve.

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

the hot mouth structure of the miniature needle valve of hot runner, including hot main part and the mould of generating heat of chewing, hot main part and the mould of generating heat of chewing are the setting of bottle form, hot main part front end fixedly connected with steel ring of generating heat of chewing, hot main part of generating heat of chewing, the heat is chewed and is generated heat the embedded fixed connection needle of main part, and the needle runs through the mould.

As a further description of the above technical solution:

the heating main body of the hot nozzle is not contacted with the die.

As a further description of the above technical solution:

the outer radius of the mould is less than 16 mm.

As a further description of the above technical solution:

the concentric circles of the heating main body of the hot nozzle and the valve needle are within 0.008 mm.

The utility model discloses following beneficial effect has:

1. the utility model provides a hot nozzle structure of a hot runner micro needle valve, which integrates a hot nozzle and a valve needle structure, and cancels a common hot nozzle head and valve needle separation structure, so that the hot nozzle can be smaller, and the die arrangement is reduced; meanwhile, the front end sealing position adopts a steel ring to be tightly sleeved on the hot nozzle heating main body, so that heat is reduced to be transferred to the die, and the energy waste is reduced.

2. The utility model provides a miniature needle valve hot nozzle structure of hot runner, it seals glue position steel ring and sheathes thick disposable machine-shaping once more, and the hot concentric circles of chewing the main part of generating heat and needle makes the location of needle more accurate within 0.008mm, avoids the needle to rock the scotch mould and goes out the jiao kou, guarantees the life of mould.

Drawings

Fig. 1 is a schematic structural view of a hot nozzle structure of a hot runner micro needle valve provided by the present invention.

Illustration of the drawings:

1. a hot nozzle heating body; 2. steel rings; 3. a mold; 4. the valve needle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present invention provides an embodiment:

the hot nozzle structure of the micro needle valve of the hot runner comprises a hot nozzle heating main body 1 and a mold 3, wherein the hot nozzle heating main body 1 and the mold 3 are arranged in a bottle shape, a steel ring 2 is fixedly connected to the front end of the hot nozzle heating main body 1, a valve needle 4 is fixedly connected to the hot nozzle heating main body 1 in an embedded mode, and the valve needle 4 penetrates through the mold 3; the structure of the heating main body 1 of the hot nozzle and the structure of the valve needle 4 are integrated, and a common structure for separating the nozzle head of the hot nozzle from the valve needle 4 is cancelled, so that the hot nozzle can be smaller, and the arrangement position of the mould 3 is reduced; simultaneously, the front end sealing position adopts a steel ring 2 to be tightly sleeved on the hot nozzle heating main body 1, so that the heat is reduced and transferred to the die 3, and the energy waste is reduced.

The hot nozzle heating body 1 and the die 3 are not contacted. The outer radius of the mould 3 is less than 16 mm. The concentric circles of the heating main body 1 of the hot nozzle and the valve needle 4 are within 0.008 mm; it is thick once only machine-shaping once more to seal glue position steel ring 2 and sheathe in, and the hot concentric circles that chews main part 1 and needle 4 that generates heat are within 0.008mm, make needle 4's location more accurate, avoid needle 4 to rock 3 glue outlets of scotch mould, guarantee mould 3's life.

The working principle is as follows: the structure of the heating main body 1 of the hot nozzle and the structure of the valve needle 4 are integrated, and a common structure for separating the nozzle head of the hot nozzle from the valve needle 4 is cancelled, so that the hot nozzle can be smaller, and the arrangement position of the mould 3 is reduced; simultaneously the front end seals gluey position and adopts steel ring 2 tight cover to chew the main part 1 that generates heat in the heat, reduces the heat and passes to mould 3, reduces the waste of the energy, seals gluey position steel ring 2 and sheathes thick disposable machine-shaping once more, and the heat is chewed the concentric circles of the main part 1 that generates heat and needle 4 and is within 0.008mm, makes the location of needle 4 more accurate, avoids needle 4 to rock 3 glue outlets of scotch mould, guarantees mould 3's life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Hot mouth structure of miniature needle valve of hot runner, including hot main part (1) and mould (3) of chewing, its characterized in that: the hot main part (1) and the mould (3) of generating heat of chewing are the bottle setting, hot main part (1) front end fixedly connected with steel ring (2) of generating heat of chewing, hot main part (1) of generating heat of chewing, the heat is chewed and is generated heat embedded fixed connection needle (4) in main part (1), and needle (4) run through mould (3).

2. The hot runner micro needle valve hot nozzle structure of claim 1, wherein: the hot nozzle heating main body (1) is not contacted with the die (3).

3. The hot runner micro needle valve hot nozzle structure of claim 1, wherein: the outer radius of the die (3) is less than 16 mm.

4. The hot runner micro needle valve hot nozzle structure of claim 1, wherein: the concentric circles of the heating main body (1) and the valve needle (4) of the hot nozzle are within 0.008 mm.