CN215969875U - Quick color changing injection nozzle - Google Patents
Quick color changing injection nozzle Download PDFInfo
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- CN215969875U CN215969875U CN202121769963.XU CN202121769963U CN215969875U CN 215969875 U CN215969875 U CN 215969875U CN 202121769963 U CN202121769963 U CN 202121769963U CN 215969875 U CN215969875 U CN 215969875U
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- injection nozzle
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- chewed
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Abstract
The utility model relates to the technical field of hot runners, in particular to a quick color changing injection nozzle, which comprises an injection nozzle body with a main runner, wherein the injection nozzle body is provided with a countersunk hole communicated with the main runner; the heater is fixedly sleeved on the peripheral side surface of the injection nozzle body; the bottom of injection nozzle body extends the collar outwards, and at least one mounting hole has been seted up to the collar, all is equipped with the fixed screw in each mounting hole, and the circumference of collar extends the boss upwards. Compared with the prior art, the injection is chewed for the split structure, even the injection is chewed the mold insert and is damaged by the striking back, only need to be changed the injection chew the mold insert can, it is swiftly convenient to maintain to overhaul, the mold insert of injection group sinks in the injection is chewed the body, hides the sizing material few, the material is difficult for decomposing, the heater is installed to the injection is chewed the body, guarantees that the injection is chewed temperature and injection and is chewed temperature balance, improves because of the temperature low lead to the injection pressure problem on the high side excessively.
Description
Technical Field
The utility model relates to the technical field of hot runners, in particular to a quick color changing injection nozzle.
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 structure of a conventional injection mold comprises an injection nozzle body 1, an upper mold plate 2, a splitter plate 3 and a flange 4, wherein a glue inlet 11 is formed in the middle of the injection nozzle body 1, the injection nozzle body 1 is fixedly connected with the splitter plate 3 through a screw, the upper mold plate 3 is not in contact with the injection nozzle body 1, the flange 4 is fixedly connected with the upper mold plate 2 through a screw, and the injection nozzle body 1 is limited by the flange 4. Such a conventional injection nozzle structure has the following problems: firstly, the temperature of the injection nozzle body 1 is taken to the injection nozzle body 1 by the splitter plate 3 through heat conduction, so that the temperature obtained by the glue inlet 11 is lower, and the problems of cold glue and the like are easily caused; secondly, if the temperature of the rubber material in the injection nozzle body 1 is lower, the injection pressure born by the injection nozzle body 1 is higher, so that the screw is easy to loosen or break, and the plastic rubber material leaks out from the contact surface of the splitter plate 3 and the injection nozzle body 1; thirdly, when the mold is produced, the position of the glue inlet 11 is easy to be damaged by long-term collision with a barrel of an injection molding machine, and after the mold is damaged, the whole injection nozzle body 1 needs to be replaced, so that the replacement consumes long time and is difficult, and the production efficiency is influenced to a certain extent; fourthly, performing secondary filtration; the nozzle body 1 is easily corroded and needs to be replaced frequently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quick color changing injection nozzle aiming at the defects in the prior art, and the injection nozzle can solve the problem that an injection nozzle body is easy to loosen.
The purpose of the utility model is realized by the following technical scheme: the application provides a quick color changing injection nozzle, which comprises an injection nozzle body with a main flow channel, wherein the injection nozzle body is provided with a countersunk hole communicated with the main flow channel, an injection nozzle insert is fixedly installed in the countersunk hole, and the injection nozzle insert is provided with a glue inlet communicated with the main flow channel; the heater is fixedly sleeved on the peripheral side surface of the injection nozzle body; the bottom of injection nozzle body extends the collar outwards, and at least one mounting hole has been seted up to the collar, all is equipped with the fixed screw in each mounting hole, and the circumference of collar extends the boss upwards.
Wherein, the heater is a copper sleeve heater.
Wherein, the cell wall of counter sink is formed with the internal thread, and the periphery side of injection chew mold insert is formed with the external screw thread of being connected the complex with the internal thread, and the counter sink is chewed mold insert threaded connection with the injection.
The injection nozzle body is fixedly connected with the flow distribution plate through a fixing screw, and the upper template is positioned above the flow distribution plate and fixedly connected with the flow distribution plate;
in the assembled state, the upper die plate abuts against the boss of the mounting ring.
The injection nozzle comprises an injection nozzle body, and is characterized by further comprising a flange, wherein the flange is fixedly connected with the upper template, and the flange is sleeved on the outer peripheral side of the injection nozzle body.
Wherein, the injection nozzle insert is of a steel structure.
Wherein, the glue inlet of the injection nozzle insert is an SR glue inlet.
The utility model has the beneficial effects that: the utility model provides a look injection nozzle is traded fast, compared with the prior art, the injection is chewed to have the injection to chew the body and the injection is chewed the mold insert and is constituteed, even the injection is chewed the mold insert and is damaged after receiving the striking, only need to be changed the injection chew the mold insert can, it is swift convenient to maintain, the mold insert of injection group sinks to inject and chews in the body, it is few to hide the sizing material, the material is difficult for decomposing, the heater is installed to the injection nozzle body, guarantee that the injection is chewed temperature and injection and chew temperature balance, it leads to the pressure of moulding plastics high problem to improve the injection and chews the department because of the temperature is low excessively.
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 view of a rapid color-changing injection nozzle in the prior art.
Fig. 2 is a schematic structural view of the quick color-changing injection nozzle in the embodiment.
Description of the drawings: the injection nozzle comprises an injection nozzle body 1, a glue inlet 11, an injection nozzle insert 12, a mounting ring 13, a boss 14, an upper template 2, a flow distribution plate 3, a flange 4, a heater 5 and a fixing screw 6.
Detailed Description
The utility model is further described with reference to the following examples.
According to the specific embodiment of the quick color changing injection nozzle, please refer to fig. 2, the injection nozzle is installed in a mold, and the mold comprises a flange 4, an upper mold plate 2 and a splitter plate 3. The injection is chewed including the injection that has the sprue and is chewed body 1, and the injection is chewed body 1 and is seted up the counter bore that communicates with the sprue, and the fixed mounting in the counter bore has injection to chew insert 12, and injection is chewed insert 12 and is seted up the mouth of advancing jiao kou 11 that communicates with the sprue. The injection nozzle body 1 is fixedly connected with the splitter plate 3 through a fixing screw 6, the upper template 2 is positioned above the splitter plate 3 and fixedly connected with the splitter plate 3, the flange 4 is fixedly connected with the upper template 2, and the flange 4 is sleeved on the periphery side of the injection nozzle body 1.
Preferably, an internal thread is formed on a groove wall of the counter bore, an external thread which is connected and matched with the internal thread is formed on the outer peripheral side surface of the injection nozzle insert 12, and the counter bore is connected with the injection nozzle insert 12 in a threaded manner. In addition, the injection nozzle insert 12 is of a steel structure, and the glue inlet 11 of the injection nozzle insert 12 is an SR glue inlet 11. Compared with the prior art, the injection nozzle is composed of the injection nozzle body 1 and the injection nozzle insert 12, even if the injection nozzle insert 12 is damaged after being impacted, only the injection nozzle insert 12 needs to be replaced, the maintenance is fast and convenient, and the injection nozzle insert 12 can be processed and prepared by adopting other steel materials such as die leftover materials, waste dies and the like, so that the utilization rate of resources can be improved, the resources are saved, and the production cost is reduced.
As an improvement, in order to enable the temperature of the injection nozzle to be freely controlled, the outer peripheral side surface of the injection nozzle body 1 is fixedly sleeved with a heater 5, in the embodiment, the heater 5 is a copper sleeve heater, and the copper sleeve heater has good heat transfer performance, can ensure the temperature of the injection nozzle and reduce energy loss. The temperature of the injection nozzle and the temperature balance of the injection nozzle are ensured, and the problem of high injection pressure caused by over-low temperature at the injection nozzle is solved.
In this embodiment, the bottom end of the injection nozzle body 1 extends outwards to form a mounting ring 13, the mounting ring 13 is provided with at least one mounting hole, each mounting hole is provided with a fixing screw 6, and a boss 14 extends upwards from the periphery of the mounting ring 13. In the assembled state, the upper plate 2 abuts against the boss 14 of the mounting ring 13. The injection nozzle body 1 is positioned between the flow distribution plate 3 and the upper die plate 2, and the boss 14 is pressed by the die plate to be limited and fixed, so that the problem of leakage glue on the contact surface of the injection nozzle body 1 and the flow distribution plate 3 caused by large injection pressure is solved.
It should be noted that, in this embodiment, injection nozzle body 1 is relatively short, so that injection nozzle insert 12 sinks into injection nozzle body 1, and the hidden rubber material is less, and the material is not easily decomposed, thereby ensuring the stability of the mold operation.
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 quick color-changing injection nozzle is characterized in that: the injection nozzle comprises an injection nozzle body with a main flow passage, wherein the injection nozzle body is provided with a countersunk hole communicated with the main flow passage, an injection nozzle insert is fixedly installed in the countersunk hole, and the injection nozzle insert is provided with a glue inlet communicated with the main flow passage;
the heater is fixedly sleeved on the peripheral side surface of the injection nozzle body;
the bottom of the injection nozzle body extends outwards to form a mounting ring, the mounting ring is provided with at least one mounting hole, each mounting hole is internally provided with a fixing screw, and the periphery of the mounting ring extends upwards to form a boss.
2. The quick color-changing injection nozzle according to claim 1, characterized in that: the heater is a copper sleeve heater.
3. The quick color-changing injection nozzle according to claim 1, characterized in that: the wall of the counter sink is provided with an internal thread, the peripheral side surface of the injection nozzle insert is provided with an external thread which is connected and matched with the internal thread, and the counter sink is connected with the injection nozzle insert in a threaded manner.
4. The quick color-changing injection nozzle according to claim 1, characterized in that: the injection nozzle body is fixedly connected with the flow distribution plate through the fixing screws, and the upper template is positioned above the flow distribution plate and fixedly connected with the flow distribution plate;
in an assembling state, the upper template abuts against the boss of the mounting ring.
5. The quick color-changing injection nozzle according to claim 4, characterized in that: the injection nozzle further comprises a flange, wherein the flange is fixedly connected with the upper template, and the flange is sleeved on the peripheral side of the injection nozzle body.
6. The quick color-changing injection nozzle according to claim 1, characterized in that: the injection nozzle insert is of a steel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121769963.XU CN215969875U (en) | 2021-07-30 | 2021-07-30 | Quick color changing injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121769963.XU CN215969875U (en) | 2021-07-30 | 2021-07-30 | Quick color changing injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215969875U true CN215969875U (en) | 2022-03-08 |
Family
ID=80515410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121769963.XU Active CN215969875U (en) | 2021-07-30 | 2021-07-30 | Quick color changing injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215969875U (en) |
-
2021
- 2021-07-30 CN CN202121769963.XU patent/CN215969875U/en active Active
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