CN210477673U - High-wear-resistance hot runner nozzle tip - Google Patents
High-wear-resistance hot runner nozzle tip Download PDFInfo
- Publication number
- CN210477673U CN210477673U CN201921222051.3U CN201921222051U CN210477673U CN 210477673 U CN210477673 U CN 210477673U CN 201921222051 U CN201921222051 U CN 201921222051U CN 210477673 U CN210477673 U CN 210477673U
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- China
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- tip
- hot runner
- grinding head
- face
- tip body
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Abstract
The utility model relates to a high wear-resisting hot runner mouth point, include the sharp body of mouth of making with the beryllium copper, the bistrique that the useful tungsten steel of terminal surface welding was made before the sharp body of mouth, be provided with the heat-conducting layer that makes with red copper and the heat preservation of making with alloy steel on the sharp body lateral wall of mouth. The device has simple structure, convenient use and low production cost.
Description
Technical Field
The utility model belongs to the mould equipment field especially relates to a high wear-resisting hot runner mouth point.
Background
At present, in order to ensure the temperature of an internal flow passage, a hot runner nozzle tip product is generally made of high-heat-conductivity metal such as copper, but the hot runner nozzle tip product is low in hardness and not wear-resistant; for plastics containing high glass fibers, the materials are easy to erode and wear, the service life is short, the replacement of accessories is expensive, and the efficiency is low. Once the nozzle tip is worn, the gate becomes bigger and higher, and finally the heat cannot be conducted to the front section to cause cold glue, so that the nozzle core needs to be replaced to normally produce. Frequent replacement of the filter core pair brings about a lot of troubles to production. The hot nozzle is generally screwed and screwed, so that the final hot nozzle charge is reported due to glue leakage when the hot nozzle is disassembled and assembled for many times, normal production cannot be carried out, and loss cannot be estimated.
Disclosure of Invention
In view of the above, there is a need for a highly wear resistant hot runner tip with high wear resistance and simple structure.
In order to solve the technical problem, the technical scheme of the utility model is that: a high-wear-resistance hot runner nozzle tip comprises a nozzle tip body made of beryllium copper, a grinding head made of tungsten steel is welded on the front end face of the nozzle tip body, and a heat conduction layer made of red copper and a heat insulation layer made of alloy steel are arranged on the outer side wall of the nozzle tip body.
Furthermore, the front part of the tip body is cylindrical, the middle part of the tip body is conical with a thin front part and a thick rear part, and the outer diameter of the rear part of the tip body is larger than that of the thick end of the middle part.
Furthermore, a conical tip part is arranged on the front end face of the front part of the nozzle tip body, and a groove for accommodating the grinding head is arranged on the front end face of the tip part.
Furthermore, the front end face of the grinding head is conical, and the taper of the grinding head is the same as that of the tip.
Furthermore, the taper angle of the tip part is 30-45 degrees.
Furthermore, the grinding head protrudes out of the front end face of the mouth tip body by 0.5-1 mm.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the beryllium copper with high thermal conductivity ensures that the molten plastic near the gate is not too cold and cannot be solidified to block the gate;
2. the high wear-resistant tungsten steel ensures that the sprue is not easy to wear, and the service life is prolonged.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1-tip body, 11-tip part, 12-front part, 13-middle part, 14-rear part, 2-grinding head, 3-heat conducting layer and 4-heat insulating layer.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, the high-wear-resistance hot runner tip comprises a tip body 1 made of beryllium copper, a grinding head 2 made of tungsten steel is welded on the front end face of the tip body, and a heat conduction layer 3 made of red copper and an insulation layer 4 made of alloy steel are arranged on the outer side wall of the tip body.
In this embodiment, the nozzle tip is provided with a main flow channel communicated with the glue supply device, and the front end of the outer side wall is provided with at least one sub-flow channel communicated with the main flow channel. Not shown in the figures.
In the embodiment, the heat conductivity coefficient 198w/(m.k) of beryllium copper and the heat conductivity coefficient 398w/(m.k) of red copper improve the heat conduction efficiency, the heat conductivity coefficient 60w/(m.k) of alloy steel is one third of that of beryllium copper, a heat insulation layer is formed, the heat loss is reduced, and the heat transfer is effectively ensured.
In this embodiment, the front portion 12 of the tip body is cylindrical, the middle portion 13 of the tip body is conical with a thin front portion and a thick rear portion for providing structural strength to the tip, and the outer diameter of the rear portion 14 of the tip body is larger than that of the thick end of the middle portion, so that the tip can be conveniently installed.
In this embodiment, a conical tip portion 11 is disposed on the front end face of the front portion of the nozzle tip body, and a groove for accommodating the grinding head is disposed on the front end face of the tip portion.
In this embodiment, the front end surface of the grinding head is conical, and the taper of the grinding head is the same as that of the tip. Ensuring the smoothness of the outer flow passage.
In this embodiment, the taper angle of the tip portion is 45 °.
In the embodiment, the grinding head protrudes out of the front end face of the nozzle tip body by 1 mm. And the clearance between the grinding head and the sprue is ensured to be larger than 0.5 mm.
If only beryllium copper is used as the tip, the heat loss is 18 percent when the temperature is 191 ℃; the tip temperature in this application is 196 ℃ and the heat loss is only 15%.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.
Claims (6)
1. A high wear-resisting hot runner tip, its characterized in that: the grinding head is welded to the front end face of the nozzle tip body, a heat conduction layer made of red copper and a heat insulation layer made of alloy steel are arranged on the outer side wall of the nozzle tip body.
2. The highly wear resistant hot runner tip as claimed in claim 1 wherein: the front part of the tip body is cylindrical, the middle part of the tip body is conical with a thin front part and a thick rear part, and the outer diameter of the rear part of the tip body is larger than that of the thick end of the middle part.
3. The highly wear resistant hot runner tip as claimed in claim 2 wherein: the front end face of the front part of the nozzle tip body is provided with a conical tip part, and the front end face of the tip part is provided with a groove for accommodating the grinding head.
4. The highly wear resistant hot runner tip as claimed in claim 3 wherein: the front end face of the grinding head is conical, and the taper of the grinding head is the same as that of the tip.
5. The highly wear resistant hot runner tip as claimed in claim 1 wherein: the taper angle of the tip portion is 30-45 degrees.
6. The highly wear resistant hot runner tip as claimed in any one of claims 1 to 5 wherein: the grinding head protrudes out of the front end face of the nozzle tip body by 0.5-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222051.3U CN210477673U (en) | 2019-07-31 | 2019-07-31 | High-wear-resistance hot runner nozzle tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222051.3U CN210477673U (en) | 2019-07-31 | 2019-07-31 | High-wear-resistance hot runner nozzle tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210477673U true CN210477673U (en) | 2020-05-08 |
Family
ID=70533628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921222051.3U Expired - Fee Related CN210477673U (en) | 2019-07-31 | 2019-07-31 | High-wear-resistance hot runner nozzle tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210477673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590130A (en) * | 2020-11-26 | 2021-04-02 | 江西省科学院应用物理研究所 | Composite structure hot runner nozzle and manufacturing method thereof |
| CN112706374A (en) * | 2020-12-11 | 2021-04-27 | 广州市艾威航空科技有限公司 | Hot runner nozzle and method for manufacturing hot runner nozzle based on 3D grafting printing |
-
2019
- 2019-07-31 CN CN201921222051.3U patent/CN210477673U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590130A (en) * | 2020-11-26 | 2021-04-02 | 江西省科学院应用物理研究所 | Composite structure hot runner nozzle and manufacturing method thereof |
| CN112706374A (en) * | 2020-12-11 | 2021-04-27 | 广州市艾威航空科技有限公司 | Hot runner nozzle and method for manufacturing hot runner nozzle based on 3D grafting printing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 Termination date: 20210731 |