CN215151410U

CN215151410U - High-precision positioning structure of needle valve hot nozzle

Info

Publication number: CN215151410U
Application number: CN202120319617.5U
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: 2021-12-14
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a high accuracy location structure of needle valve hot nozzle, which comprises a die, be provided with heat in the mould and chew the main part that generates heat, heat is chewed and is provided with in the main part that generates heat and chew first main part, chew the embedded fixedly connected with needle of first main part, and needle output and mould fixed connection, it has cup jointed and has sealed a glue position steel ring to chew first main part terminal surface position, and seals glue position steel ring and be located and chew between first main part and the mould, heat is chewed the main part that generates heat and is adopted beryllium copper material, the needle lateral wall is within 0.008mm with the concentric circle that seals glue position steel ring lateral wall and form. The utility model discloses the heat is chewed the main part material that generates heat and is used beryllium copper, chews the head and seals the glue position and use the steel ring, with chew the tight cover of first main part together, ensures that the concentricity of valve needle lateral wall and two circles that seal glue position steel ring lateral wall formed is within 0.008mm, makes the location of valve needle more accurate, avoids the valve needle to rock the scotch mould and goes out the jiao kou, guarantees the mould life-span.

Description

High-precision positioning structure of needle valve hot nozzle

Technical Field

The utility model relates to a hot mouth field of needle valve especially relates to high accuracy location structure of hot mouth of needle valve.

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.

Most of the existing needle valve hot nozzles are used in large-scale industry, and the needle valve hot nozzles do not have too high requirement on positioning precision, so that a high-precision positioning structure of the needle valve hot nozzles is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-precision positioning structure of a needle valve hot nozzle.

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

high accuracy location structure of needle valve hot mouth, which comprises a die, be provided with the hot main part that generates heat of chewing in the mould, the heat is chewed and is provided with in the main part that generates heat and chew first main part, chew the embedded fixedly connected with needle of first main part, and needle output and mould fixed connection, it has cup jointed and has sealed a glue position steel ring to chew first main part terminal surface position, and seals a glue position steel ring and be located and chew between first main part and the mould.

As a further description of the above technical solution:

the heating main body of the heat nozzle is made of beryllium copper.

As a further description of the above technical solution:

the concentric circles formed by the outer side wall of the valve needle and the outer side wall of the sealing glue position steel ring are within 0.008 mm.

The utility model discloses following beneficial effect has:

the utility model provides a high accuracy location structure of needle valve hot nozzle, its heat are chewed the main part material that generates heat and are used beryllium copper, chew the head and seal the glue position and use the steel ring, with chew the head main part tightly overlap together, ensure that the needle lateral wall is within 0.008mm with the concentricity of sealing two circles that the glue position steel ring lateral wall formed, make the location of needle more accurate, avoid the needle to rock the scotch mould and go out the jiao kou, guarantee the mould life-span.

Drawings

Fig. 1 is a schematic structural diagram of a high-precision positioning structure of a needle valve hot nozzle provided by the present invention;

fig. 2 is the utility model provides a high accuracy location structure's of needle valve hot nozzle glue a position steel ring structure sketch map.

Illustration of the drawings:

1. a hot nozzle heating body; 2. a mouthpiece main body; 3. sealing a glue position steel ring; 4. a mold; 5. 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. 1-2, the present invention provides an embodiment:

high accuracy location structure of needle valve hot mouth, including mould 4, be provided with in the mould 4 that heat is chewed main part 1 that generates heat, heat is chewed and is provided with in the main part 1 that generates heat and chew first main part 2, chews the embedded fixedly connected with needle 5 of first main part 2, and needle 5 output and mould 4 fixed connection, chews 2 terminal surface positions of first main part and has cup jointed and seal a glue position steel ring 3, and seals a glue position steel ring 3 and be located and chew between first main part 2 and the mould 4.

Heat is chewed main part 1 and is adopted the beryllium copper material, ensure that heat is chewed the intensity of main part 1 that generates heat, it uses the steel ring to chew the first position of gluing, play the effect that reduces the heat transfer, prevent that a large amount of heat energy transfer from giving 4 shells of mould, reduce the waste of the energy, tightly overlap together with chewing first main part 2, ensure that the concentricity of 5 lateral walls of needle and two circles that 3 lateral walls of gluing position steel ring formed is within 0.008mm, make the location of needle 5 more accurate, avoid needle 5 to rock 4 glue outlets of scotch mould, guarantee 4 life-spans of mould. The concentric circles formed by the outer side wall of the valve needle 5 and the outer side wall of the sealing glue position steel ring 3 are within 0.008 mm.

The working principle is as follows: the heat is chewed main part 1 and is adopted the beryllium copper material, chews the first position of gluing and uses the steel ring, with chew first main part 2 and tightly overlap together, ensures that the concentricity of 5 lateral walls of needle and 3 lateral walls of gluing position steel ring forms two circles within 0.008mm, promotes the location of needle 5 more accurately greatly, avoids needle 5 to rock 4 glue outlets of scotch mould, guarantees 4 life-spans of mould.

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. High accuracy location structure of hot mouth of needle valve, including mould (4), its characterized in that: be provided with heat in mould (4) and chew main part (1) that generates heat, heat is chewed and is provided with in the main part (1) that generates heat and chew first main part (2), chew embedded fixedly connected with needle (5) of first main part (2), and needle (5) output and mould (4) fixed connection, it has cup jointed and has sealed gluey position steel ring (3) to chew first main part (2) terminal surface position, and seals gluey position steel ring (3) and be located and chew between first main part (2) and mould (4).

2. The high-precision positioning structure of the needle valve hot nozzle according to claim 1, characterized in that: the heat nozzle heating main body (1) is made of beryllium copper.

3. The high-precision positioning structure of the needle valve hot nozzle according to claim 1, characterized in that: the concentric circles formed by the outer side wall of the valve needle (5) and the outer side wall of the glue sealing position steel ring (3) are within 0.008 mm.