CN218803641U - Special-shaped needle valve type nozzle - Google Patents
Special-shaped needle valve type nozzle Download PDFInfo
- Publication number
- CN218803641U CN218803641U CN202223286579.1U CN202223286579U CN218803641U CN 218803641 U CN218803641 U CN 218803641U CN 202223286579 U CN202223286579 U CN 202223286579U CN 218803641 U CN218803641 U CN 218803641U
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- China
- Prior art keywords
- nozzle body
- nozzle
- insert
- needle valve
- hot runner
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- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 206010066054 Dysmorphism Diseases 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The special-shaped needle valve type nozzle comprises a first insert and a nozzle body connected in the first insert, wherein the outer side surface of the nozzle body positioned below the first insert comprises a first side surface and a second side surface, and the distance from the first side surface to the middle position of the nozzle body is greater than the distance from the second side surface to the middle position of the nozzle body; a heater is arranged on the outer side surface of the nozzle body; the nozzle body is internally provided with a hot runner which is arranged at one side close to the second side surface, a valve needle is arranged in the hot runner, and the valve needle is driven to move up and down in the hot runner. Compared with the prior art, the utility model discloses a dysmorphism needle valve formula nozzle can be suitable for the strand position height, runner from the moulding plastics of strand position nearly product.
Description
Technical Field
The utility model belongs to the technical field of the runner mould, concretely relates to dysmorphism needle valve formula nozzle.
Background
Currently, the existing needle valve type nozzle has a cylindrical structure in most parts, and a hot runner in the nozzle is located in the middle of the nozzle. However, for some products with a higher strand position (for example, a cup is injection molded, the sidewall of the cup is the strand position) and a gate closer to the strand position, when the nozzle extends downward into the cavity of the mold, the outer sidewall of the nozzle interferes with the inner wall of the cavity of the mold, and the discharge hole at the bottom of the nozzle is difficult to align with the gate, so that the product cannot be injection molded.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough among the prior art, provide one kind can be suitable for the strand position height, runner from the special-shaped needle valve formula nozzle of the nearly product of strand position.
In order to achieve the above purpose, the technical scheme of the utility model is as follows.
A special-shaped needle valve type nozzle comprises a first insert and a nozzle body connected in the first insert, wherein the outer side surface of the nozzle body positioned below the first insert comprises a first side surface and a second side surface, and the distance from the first side surface to the middle position of the nozzle body is greater than the distance from the second side surface to the middle position of the nozzle body;
a heater is arranged on the outer side surface of the nozzle body;
the nozzle body is internally provided with a hot runner which is arranged at one side close to the second side surface, a valve needle is arranged in the hot runner, and the valve needle is driven to move up and down in the hot runner.
Furthermore, in the direction of the top projection, the outer side surface of the nozzle body positioned below the first insert is rectangular.
Furthermore, the outer side surface of the nozzle body is provided with reinforced steel.
Further, a heat insulation layer is arranged at the bottom of the nozzle body.
Further, a second insert used for being in contact with the gate is arranged at the bottom of the nozzle body, and the second insert is made of a low-thermal-conductivity material.
The heater is a heating wire, and the heating wire is wound on the outer side surface of the nozzle body in an abnormal shape.
And a support lug is horizontally and outwards arranged at the bottom of the first insert.
And a side pressing block is arranged at the bottom of the first insert and close to the nozzle body.
Compared with the prior art, the beneficial effects of the utility model are that: the second side is arranged at the middle position close to the nozzle body, the hot runner is arranged at one side close to the second side, namely the discharge hole at the bottom of the nozzle is close to the second side, the distance between the discharge hole at the bottom of the nozzle and the second side is shortened, even if the sprue is close to a strand position of a product, the discharge hole of the nozzle can be aligned to the sprue to perform injection molding, and the problem that injection molding is difficult to perform due to the fact that the sprue is close to the strand position in the prior art is solved. In addition, because the strand position of the product of moulding plastics is higher, this makes the nozzle body that is located first mold insert bottom also need have longer length, with the intermediate position that first side is kept away from the nozzle body relatively enable to have bigger thickness between first side and the hot runner to guaranteed the intensity and the rigidity of nozzle body, also made the compact structure of nozzle body simultaneously.
Drawings
FIG. 1 is a front view of the special-shaped needle valve type nozzle of the present invention;
FIG. 2 is a top view of a contoured needle valve nozzle;
a first insert 1; a support ear 11; a side pressing block 12;
a nozzle body 2; a first side surface 21; a second side 22; a hot runner 23; a valve needle 24; a second insert 25;
and a heater 3.
Detailed Description
In the description of the present invention, it is to be understood that the terms "inside", "outside", 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 simplicity of description, and 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.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The technical solution of the present invention will be further explained with reference to the accompanying drawings 1-2.
A special-shaped needle valve type nozzle is shown in figures 1-2 and comprises a first insert 1 and a nozzle body 2, wherein the first insert 1 is cylindrical, the nozzle body 2 is detachably connected into the first insert 1, the outer side surface of the nozzle body 2 positioned below the first insert 1 comprises a first side surface 21 and a second side surface 22, and the distance from the first side surface 21 to the middle position of the nozzle body 2 is greater than the distance from the second side surface 22 to the middle position of the nozzle body 2. And a heater 3 is arranged on the outer side surface of the nozzle body 2. A hot runner 23 is provided in the nozzle body 2, the hot runner 23 is provided on a side close to the second side surface 22, a valve needle 24 is provided in the hot runner 23, and the valve needle 24 is driven to move up and down in the hot runner 23. When the special needle valve type nozzle is used, the existing connection mode can be adopted for the connection mode of the special needle valve type nozzle and the valve needle, for example, the nozzle is connected below the flow distribution plate, the valve needle and the corresponding driving structure are connected above the flow distribution plate, and the valve needle penetrates through the flow distribution plate to enter a hot runner. Above dysmorphism needle valve formula nozzle sets up second side 22 in the intermediate position department that is close to nozzle body 2, and hot runner 23 is located and is close to second side 22 one side, and the discharge gate of nozzle body 2 bottom is close to second side 22 promptly, and this has shortened the distance between the discharge gate of nozzle bottom and the second side 22, even the runner is nearer apart from the strand position of product, the discharge gate of nozzle also can aim at the runner and mould plastics, has solved among the prior art because of the runner is close to strand position and is difficult to the problem of moulding plastics. In addition, because the strand position of the injection-molded product is higher, the nozzle body 2 at the bottom of the first insert 1 also has a longer length, and the first side surface 21 is arranged at the middle position relatively far away from the nozzle body 2, so that the thickness between the first side surface 21 and the hot runner 23 is larger, the strength and the rigidity of the nozzle body 2 are ensured, and the structure of the nozzle body 2 is compact.
As a modification, the outer side surface of the nozzle body 2 located below the first insert 1 is rectangular in a top projection direction. The left side surface of the rectangle is the second side surface 22, the hot runner is arranged at the middle position close to the left side surface of the rectangle and in the front-back direction, and the front side surface, the back side surface and the right side surface of the rectangle are the first side surfaces. The side surfaces can be connected through arc surfaces. The outer side face of the nozzle body is rectangular, and the thickness from the hot runner 23 to the front side face, the rear side face and the right side face of the nozzle body is large, so that the strength and the rigidity of the nozzle body 2 are guaranteed, the use stability and the service life of the nozzle body 2 are improved, and the nozzle body 2 is effectively prevented from being damaged due to insufficient strength and rigidity. As a further improvement scheme, the outer side surface of the nozzle body is provided with reinforced steel, the reinforced steel further improves the strength of the nozzle body 2, and the service stability and the service life of the nozzle body are improved.
As an improvement scheme, 2 bottoms of nozzle body and the week side that is close to the discharge gate are equipped with the insulating layer, and at the in-process of moulding plastics, insulating layer and runner contact because the heat conduction effect of insulating layer is poor, and the temperature of discharge gate department is also difficult for running off, has avoided leading to the temperature to hang down excessively because of discharge gate department temperature loss, and then has made the temperature that the melting was glued be less than the required temperature of moulding plastics to the quality of product has been reduced. Preferably, a second insert 25 is fixedly connected to the bottom of the nozzle body 2, the second insert 25 is made of a material with low thermal conductivity, and the second insert 25 is a thermal insulation layer. The structure is simple, and the assembly is convenient. It should be noted that the type of the above low thermal conductive material can be selected according to the requirement, and will not be described in detail here.
As an improvement scheme, heater 3 is the heater strip, the heater strip dysmorphism is twined in the lateral surface of nozzle body, from last to setting up down from a side of nozzle body 2 if the heater strip, rotate afterwards to another side from supreme winding down, it has the heater strip to twine until a plurality of sides of nozzle body, in order to guarantee heating temperature, above twine the heater strip through dysmorphism, the heating temperature of nozzle body has been guaranteed promptly, also make the discharge gate of 2 bottoms of nozzle body have sufficient temperature simultaneously, make the melting glue can flow with certain temperature, guarantee the product quality who makes.
As a modification, the bottom of the first insert 1 is horizontally provided with a support lug 11 outward, a support structure matched with the support lug 11 can be arranged in the injection mold, and the support lug 11 is matched with the support structure in the mold cavity, so that the first insert 1 is connected in the mold cavity. In addition, the bottom of the first insert 1 and the position close to the nozzle body are provided with the side pressing blocks 12, and after the nozzle is arranged in the mold cavity, the side pressing blocks 12 can be matched with the side wall of the supporting structure, so that the movement of the nozzle along the side direction is limited, and the installation stability of the nozzle is favorably ensured.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A profiled needle valve nozzle, characterized by: the nozzle comprises a first insert and a nozzle body connected in the first insert, wherein the outer side surface of the nozzle body positioned below the first insert comprises a first side surface and a second side surface, and the distance from the first side surface to the middle position of the nozzle body is greater than the distance from the second side surface to the middle position of the nozzle body;
a heater is arranged on the outer side surface of the nozzle body;
the nozzle body is internally provided with a hot runner which is arranged at one side close to the second side surface, a valve needle is arranged in the hot runner, and the valve needle is driven to move up and down in the hot runner.
2. The contoured needle valve nozzle of claim 1, wherein: in the overlooking projection direction, the outer side surface of the nozzle body positioned below the first insert is rectangular.
3. The contoured needle valve nozzle of claim 1, wherein: and the outer side surface of the nozzle body is provided with reinforced steel.
4. The contoured needle valve nozzle of claim 1, wherein: and a heat insulation layer is arranged at the bottom of the nozzle body.
5. The contoured needle valve nozzle of claim 4, wherein: the bottom of the nozzle body is provided with a second insert which is used for being in contact with the sprue, and the second insert is made of a low-thermal-conductivity material.
6. A profiled needle valve nozzle as claimed in any one of claims 1 to 5 wherein: the heater is a heating wire, and the heating wire is wound on the outer side surface of the nozzle body in an abnormal shape.
7. A profiled needle valve nozzle as claimed in any one of claims 1 to 5 wherein: and a support lug is horizontally and outwards arranged at the bottom of the first insert.
8. A profiled needle valve nozzle as claimed in any one of claims 1 to 5, wherein: and a side pressing block is arranged at the bottom of the first insert and close to the nozzle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223286579.1U CN218803641U (en) | 2022-12-07 | 2022-12-07 | Special-shaped needle valve type nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223286579.1U CN218803641U (en) | 2022-12-07 | 2022-12-07 | Special-shaped needle valve type nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218803641U true CN218803641U (en) | 2023-04-07 |
Family
ID=87257211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223286579.1U Active CN218803641U (en) | 2022-12-07 | 2022-12-07 | Special-shaped needle valve type nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218803641U (en) |
-
2022
- 2022-12-07 CN CN202223286579.1U patent/CN218803641U/en active Active
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