CN212472222U - Nozzle core mechanism with valve needle guiding function - Google Patents
Nozzle core mechanism with valve needle guiding function Download PDFInfo
- Publication number
- CN212472222U CN212472222U CN202021179285.7U CN202021179285U CN212472222U CN 212472222 U CN212472222 U CN 212472222U CN 202021179285 U CN202021179285 U CN 202021179285U CN 212472222 U CN212472222 U CN 212472222U
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- Prior art keywords
- mouth
- wall
- core
- hot
- nozzle
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- 230000007246 mechanism Effects 0.000 title claims abstract description 10
- 239000000155 melt Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a mouth core mechanism with needle direction function, including hot mouth body, part stretch into the mouth core, the cover of hot mouth body lower part inner chamber establish at mouth core middle part outer wall and with the mouth core fix at the mouth cap of hot mouth body lower part inner chamber, pass the needle of hot mouth body and mouth core, hot mouth body lower part inner chamber is equipped with step portion, install the direction mold insert between step portion and mouth core upper end, the direction mold insert includes the guide block of circumference equipartition at its annular inner wall, the needle passes direction mold insert and needle outer wall and the laminating of guide block inner wall slip. The utility model discloses guaranteed that needle and fuse-element runner remain throughout to set up with one heart, ensured product quality.
Description
Technical Field
The utility model relates to a hot runner technical field especially relates to a mouth core mechanism with needle direction function.
Background
The hot runner nozzle is divided into a needle valve type hot runner nozzle and an open type hot runner nozzle, a valve needle for closing a pouring gate is arranged in the needle valve type hot runner nozzle, the valve needle provides reciprocating motion power by an air cylinder or an oil cylinder, when injection molding is started, the valve needle retreats to open the pouring gate, and after the injection molding is finished, the valve needle moves forwards to close the pouring gate. In the actual injection molding process, the influence of factors such as processing precision and injection pressure fluctuation is limited, the movement of the valve needle in the nozzle cannot be ensured to be vertical all the time, even if the front end of the valve needle is perfectly matched with a nozzle cap sprue, the concentricity of the valve needle with a nozzle core and a flow channel of the nozzle body cannot be ensured, in the injection molding process, the material coming out of the nozzle cannot reach complete balance, and the product defect is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a nozzle core mechanism with needle direction function, guaranteed that needle and fuse-element runner remain throughout to set up with one heart, ensure product quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the nozzle core mechanism with the valve needle guiding function comprises a hot nozzle body, a nozzle core, a nozzle cap and a valve needle, wherein the part of the nozzle core extends into an inner cavity at the lower part of the hot nozzle body, the nozzle cap is sleeved on the outer wall at the middle part of the nozzle core and fixes the nozzle core in the inner cavity at the lower part of the hot nozzle body, the valve needle penetrates through the hot nozzle body and the nozzle core, a step part is arranged in the inner cavity at the lower part of the hot nozzle body, a guiding insert is installed between the step part and the upper end of the nozzle core and comprises a guiding block, the circumference of the guiding insert is uniformly distributed on the annular inner wall of the.
The guide insert further comprises an annular side sleeve part, the annular inner wall of the side sleeve part protrudes to form a guide block, the annular outer wall of the side sleeve part is attached to the annular inner wall of the step part, and the side sleeve part is abutted between the bottom surface of the step part and the upper end surface of the nozzle core.
The inner cavity of the hot nozzle body, the gap between the adjacent guide blocks and the inner cavity of the nozzle core form a melt flow channel.
The utility model has the advantages that: the guide insert is fixed in the inner cavity of the lower part of the hot nozzle body through the nozzle cap and the nozzle core, the guide insert is ensured to be concentric with the inner cavity of the hot nozzle body, the valve needle penetrates through the guide insert through the arrangement of the guide block, and then the valve needle and the inner cavity of the hot nozzle body are kept concentric, so that the valve needle and a melt flow channel are always kept concentrically, and the product quality is ensured.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a perspective view of the guiding insert of the present invention.
In the figure: the hot nozzle comprises a hot nozzle body 1, a step part 11, a guide insert 2, a side sleeve part 21, a guide block 22, a nozzle core 3, a nozzle cap 4, a valve needle 5, a mold core cavity seat 6, a pouring gate 61 and a heating ring 7.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 2, a nozzle core mechanism with a valve needle guiding function includes a hot nozzle body 1, a nozzle core 3 partially extending into a lower inner cavity of the hot nozzle body 1, a nozzle cap 4 sleeved on an outer wall of a middle portion of the nozzle core 3 and fixing the nozzle core 3 in the lower inner cavity of the hot nozzle body 1, and a valve needle 5 penetrating through the hot nozzle body 1 and the nozzle core 3, wherein an outer wall of an upper portion of the nozzle core 3 is attached to an annular inner wall of a lower portion of the hot nozzle body 1, and the nozzle cap 4 fixes the nozzle core 3 in the prior art, which is not described in detail herein.
The inner cavity of the lower part of the hot nozzle body 1 is provided with a step part 11, a guide insert 2 is arranged between the step part 11 and the upper end of the nozzle core 3, the guide insert 2 comprises a guide block 22 uniformly distributed on the annular inner wall of the guide insert 2 in the circumference, the valve needle 5 penetrates through the guide insert 2, the outer wall of the valve needle 5 is in sliding fit with the inner wall of the guide block 22, the valve needle 5 is always concentric with the guide insert 2 in the up-and-down movement process through the structural design, and the valve needle 5 is further concentric with a melt flow channel.
The guiding insert 2 further comprises an annular side sleeve portion 21, the annular inner wall of the side sleeve portion 21 protrudes to form a guiding block 22, the annular outer wall of the side sleeve portion 21 is attached to the annular inner wall of the step portion 11, the side sleeve portion 21 abuts between the bottom surface of the step portion 11 and the upper end face of the nozzle core 3, and the guiding insert 2 and the inner cavity of the hot nozzle body 1 are arranged concentrically through structural matching.
The inner cavity of the hot nozzle body 1, the gap between the adjacent guide blocks 22 and the inner cavity of the nozzle core 3 form a melt flow channel.
The utility model discloses a 1 upper end of hot mouth body is fixed at flow distribution plate (not drawn in the picture), hot mouth body 1 stretches into in the mould benevolence type chamber seat 6 and mouth core 3, mouth cap 4 all locates in the mould benevolence type chamber seat 6, be equipped with between hot mouth body 1 and the mould benevolence type chamber seat 6 and make the fuse-element keep homothermal heating ring 7, 6 bottoms of mould benevolence type chamber seat are equipped with runner 61, 5 lower extremes of needle pass mould benevolence type chamber seat 6 and with the laminating of runner 61 and close runner 61, when beginning moulding plastics, needle 5 shifts up along guide block 22 inner walls and makes runner 61 open, and then make the fuse-element evenly spout from runner 61 and mould plastics.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. The utility model provides a mouth core mechanism with needle direction function, includes hot mouth body (1), the part stretches into mouth core (3) of hot mouth body (1) lower part inner chamber, overlaps to establish at mouth core (3) middle part outer wall and fixes mouth cap (4) at hot mouth body (1) lower part inner chamber with mouth core (3), passes needle (5) of hot mouth body (1) and mouth core (3), its characterized in that: the hot nozzle is characterized in that a step portion (11) is arranged in an inner cavity of the lower portion of the hot nozzle body (1), a guide insert (2) is installed between the step portion (11) and the upper end of the nozzle core (3), the guide insert (2) comprises guide blocks (22) which are uniformly distributed on the annular inner wall of the guide insert, and the valve needle (5) penetrates through the guide insert (2) and the outer wall of the valve needle (5) to be in sliding fit with the inner wall of the guide blocks (22).
2. A nozzle core mechanism with valve needle guiding function as claimed in claim 1, wherein: the guide insert (2) further comprises an annular side sleeve portion (21), the annular inner wall of the side sleeve portion (21) protrudes to form a guide block (22), the annular outer wall of the side sleeve portion (21) is attached to the annular inner wall of the step portion (11), and the side sleeve portion (21) is abutted between the bottom surface of the step portion (11) and the upper end face of the nozzle core (3).
3. A nozzle core mechanism with valve needle guiding function as claimed in claim 1, wherein: the inner cavity of the hot nozzle body (1), the gap between the adjacent guide blocks (22) and the inner cavity of the nozzle core (3) form a melt flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021179285.7U CN212472222U (en) | 2020-06-23 | 2020-06-23 | Nozzle core mechanism with valve needle guiding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021179285.7U CN212472222U (en) | 2020-06-23 | 2020-06-23 | Nozzle core mechanism with valve needle guiding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212472222U true CN212472222U (en) | 2021-02-05 |
Family
ID=74412574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021179285.7U Active CN212472222U (en) | 2020-06-23 | 2020-06-23 | Nozzle core mechanism with valve needle guiding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212472222U (en) |
-
2020
- 2020-06-23 CN CN202021179285.7U patent/CN212472222U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312030 Changfeng Industrial Park, Pingshui Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Hengdao Technology Co.,Ltd. Address before: 312030 Changfeng Industrial Park, Pingshui Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG HENGDAO TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |