CN215550580U - Non-nozzle core through nozzle structure - Google Patents
Non-nozzle core through nozzle structure Download PDFInfo
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- CN215550580U CN215550580U CN202121772327.2U CN202121772327U CN215550580U CN 215550580 U CN215550580 U CN 215550580U CN 202121772327 U CN202121772327 U CN 202121772327U CN 215550580 U CN215550580 U CN 215550580U
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- nozzle body
- runner
- nozzle
- sprue
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Abstract
The utility model relates to the technical field of hot runners, in particular to a through nozzle structure without a nozzle core, which comprises a hot nozzle body and a nozzle sleeve embedded at the bottom of the hot nozzle body, wherein the nozzle sleeve is in threaded connection with the hot nozzle body, a main runner is arranged in the hot nozzle body, the hot runner communicated with the main runner is arranged in the nozzle sleeve, a glue outlet communicated with the hot runner is arranged at the bottom of the nozzle sleeve, the glue outlet is gradually enlarged along the glue outlet direction, and a copper sleeve heater is sleeved on the peripheral side surface of the hot nozzle body. Compared with the prior art, the plastic melt directly flows through the hot runner of the sprue bush from the main runner of the hot nozzle body and flows out, so that the plastic pressure loss is reduced, and the working efficiency is improved; the sprue bushing has the advantages that a sprue core is not required to be arranged, heat loss is reduced, the temperature of the sprue bushing is guaranteed, the sprue cannot be blocked by solid generated by decomposition and carbonization of the plastic material, the sprue position of the sprue bushing is not provided with the sprue core inserted in the middle, the plastic flowing shearing force is small, and the material is not easy to decompose.
Description
Technical Field
The utility model relates to the technical field of hot runners, in particular to a through nozzle structure without a nozzle core.
Background
High-end electronic products, medical products, cosmetics, daily necessities and the like in the market are all prepared by color changing molding of amorphous or crystalline plastics, and the injection molding of the products is carried out by a hot runner which is suitable for high-temperature fiber engineering plastic materials or corrosive plastic materials. In practical applications, injection molding of these products requires a hot runner structure capable of precisely controlling temperature and a corrosion-resistant hot runner structure, and thus can be applied to mass production of products.
Referring to fig. 1, the traditional through nozzle structure comprises a hot nozzle body 1, a nozzle core 2 arranged at the bottom of the hot nozzle body 1 and a nozzle sleeve 3 arranged at the bottom of the nozzle core 2, wherein the hot nozzle body 1 is kept at a certain temperature, sol can be kept in a molten state when flowing through the hot nozzle body 1, the nozzle core 2 is made of a material with high heat conduction and is used for heat conduction, so that a melt cannot be cooled when passing through, the melt passes through the nozzle core 2 when in a plastic molten state, and the melt enters a product die cavity through an inclined hole 21 of the nozzle core. The prior through nozzle structure has the following problems: the core 2 of chewing adopts the point to chew the structure, and the fuse-element is at the inclined hole 21 reentrant runner cover 3 of chewing core 2, then flows into the die cavity again, and the difficult wire drawing of outlet 31 of runner cover 3 when the shaping to pressure is moulded plastics greatly, and runner cover 3 easily blocks up gluey, chews the easy wearing and tearing of point position, chews core 2 and has the dead angle, and the plastic is detained easily, is difficult for trading the look, and work efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a through nozzle structure without a nozzle core, which can solve the problem of low working efficiency.
The purpose of the utility model is realized by the following technical scheme: the utility model provides a core leads to and chews structure is chewed to nothing, chew the body and imbed the runner cover that chews body bottom at heat including heat, runner cover and heat chew body threaded connection, and the heat is chewed and is seted up the sprue in the body, offers the hot runner that is linked together with the sprue in the runner cover, and the bottom of runner cover is equipped with the mouth of gluing with the play of hot runner intercommunication, goes out the mouth of gluing and enlarges gradually along the direction of gluing, and the periphery side face cover that the body was chewed to heat is equipped with the copper sheathing heater.
Wherein, the hot runner narrows gradually along the direction of glue outlet.
Wherein, the peripheral side surface of the hot nozzle body is fixedly provided with a snap ring; in the assembled state, the top end face of the clamping ring is abutted against the bottom face of the copper sleeve heater.
Wherein, the upper end of the hot nozzle body is provided with a transverse clamping pin hole, and an anti-rotation pin is arranged in the clamping pin hole.
Wherein, the sprue bush is of a middle-shaped structure.
Wherein, the sprue bush is made of steel materials.
The utility model has the beneficial effects that: compared with the prior art, the non-nozzle-core through nozzle structure has the advantages that the plastic melt directly flows through the hot runner of the nozzle sleeve from the main runner of the hot nozzle body and flows out, so that the pressure loss of the plastic is reduced, and the working efficiency is improved; need not to set up the core of chewing, reduce thermal scattering and disappearing, the temperature of runner cover is guaranteed, can not plug the runner because the plastic material decomposes the solid that the carbonization becomes, and the runner position of runner cover does not have the core of chewing and inserts in the centre, and the plastic shearing force that flows is little, and the material is difficult for decomposing, does not have the core of chewing and cuts off the runner position, need not consider the wearing and tearing of chewing the core, improves the life of runner cover.
Drawings
The utility model is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the utility model, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a through mouth structure in the prior art.
Fig. 2 is a schematic structural view of the structure of the non-chewing through mouth in this embodiment.
Reference numerals: the hot nozzle body 1, chew core 2, inclined hole 21, sprue bush 3, go out jiao kou 31, copper sheathing heater 4, snap ring 41, prevent changeing pin 5, sprue 11, hot runner 32.
Detailed Description
An embodiment of the utility model of a non-nozzle-core through-nozzle structure, please see fig. 2, comprises a hot nozzle body 1 and a sprue bush 3 embedded in the bottom of the hot nozzle body 1. Specifically, the mounting groove has been seted up to the bottom of body 1 is chewed to heat, and the cell wall of mounting groove is equipped with the internal thread, and the periphery side of runner cover 3 is equipped with the external screw thread that carries out threaded connection with the internal thread, and under the assembled state, body 1 is chewed to heat and runner cover 3 is fixed through threaded connection.
As the improvement, set up sprue 11 in the body 1 is chewed to the heat, set up the hot runner 32 that is linked together with sprue 11 in the runner cover 3, the bottom of runner cover 3 is equipped with the play jiao kou 31 with hot runner 32 intercommunication, goes out jiao kou 31 and enlarges along the direction of glue of play gradually, is more convenient for like this improve the speed of moulding plastics to improve production efficiency, the periphery side cover that the body 1 was chewed to the heat is equipped with copper sheathing heater 4, guarantees the injection temperature of plastic melt, guarantees the stability of work.
In this embodiment, the hot runner 32 is gradually narrowed along the glue discharging direction, so that the injection pressure can be increased, and the dead angle in the sprue bush 3 can be reduced, thereby prolonging the service life of the sprue bush 3 and facilitating the color changing operation.
In the embodiment, in order to further limit the position of the copper sleeve heater 4 and prevent the copper sleeve heater 4 from falling off, a clamping ring 41 is fixedly arranged on the outer peripheral side surface of the hot nozzle body 1; in the assembled state, the top end face of the snap ring 41 abuts against the bottom face of the copper sheathed heater 4.
In this embodiment, in order to prevent the hot nozzle body 1 from rotating in the production process, the upper end of the hot nozzle body 1 is provided with a transverse clamping pin hole, and an anti-rotation pin 5 is arranged in the clamping pin hole.
In this embodiment, the sprue bush 3 has a middle-shaped structure in order to facilitate mounting and limiting of the sprue bush 3. In addition, the sprue bush 3 is made of steel materials, and the structure is good in heat conducting performance, low in manufacturing cost and easy to obtain manufacturing materials.
Compared with the prior art, the non-nozzle-core through nozzle structure has the advantages that the plastic melt directly flows through the hot runner 32 of the nozzle sleeve 3 from the main runner 11 of the hot nozzle body 1 and flows out, so that the plastic pressure loss is reduced, and the working efficiency is improved; need not to set up the core of chewing, reduce thermal scattering and disappearing, the temperature of runner cover 3 is guaranteed, can not plug the runner because the plastic material decomposes the solid that the carbonization becomes, and the runner position of runner cover 3 does not have the core of chewing and inserts in the centre, and the plastic shearing force that flows is little, and the material is difficult for decomposing, does not have the core of chewing and cuts off the runner position, need not consider the wearing and tearing of chewing the core, improves the life of runner cover 3. No dead angle exists between the sprue bush 3 and the hot nozzle body 1, the plastic is not detained, the color is easy to change, and the sprue is not easy to block due to the cold cutting of the plastic.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A structure is chewed to no core of chewing, its characterized in that: the hot runner type hot runner injection molding machine comprises a hot nozzle body and a sprue bush embedded into the bottom of the hot nozzle body, wherein the sprue bush is in threaded connection with the hot nozzle body, a main runner is formed in the hot nozzle body, a hot runner communicated with the main runner is formed in the sprue bush, a glue outlet communicated with the hot runner is formed in the bottom of the sprue bush, the glue outlet is gradually enlarged along the glue outlet direction, and a copper bush heater is sleeved on the peripheral side face of the hot nozzle body.
2. The structure of claim 1, wherein: the hot runner narrows gradually along the glue outlet direction.
3. The structure of claim 1, wherein: the side surface of the periphery of the hot nozzle body is fixedly provided with a clamping ring;
and in an assembling state, the top end surface of the clamping ring is abutted against the bottom surface of the copper sleeve heater.
4. The structure of claim 1, wherein: the upper end of the hot nozzle body is provided with a transverse clamping pin hole, and an anti-rotation pin is arranged in the clamping pin hole.
5. The structure of claim 1, wherein: the sprue bush is of a middle-shaped structure.
6. The structure of claim 1, wherein: the sprue bush is made of steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121772327.2U CN215550580U (en) | 2021-07-30 | 2021-07-30 | Non-nozzle core through nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121772327.2U CN215550580U (en) | 2021-07-30 | 2021-07-30 | Non-nozzle core through nozzle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215550580U true CN215550580U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121772327.2U Active CN215550580U (en) | 2021-07-30 | 2021-07-30 | Non-nozzle core through nozzle structure |
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| CN (1) | CN215550580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116922701A (en) * | 2023-09-18 | 2023-10-24 | 珠海格力精密模具有限公司 | Hot nozzle structure and hot runner system |
-
2021
- 2021-07-30 CN CN202121772327.2U patent/CN215550580U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116922701A (en) * | 2023-09-18 | 2023-10-24 | 珠海格力精密模具有限公司 | Hot nozzle structure and hot runner system |
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