CN210362287U - Cold runner system for thermosetting plastic development - Google Patents
Cold runner system for thermosetting plastic development Download PDFInfo
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- CN210362287U CN210362287U CN201920326018.9U CN201920326018U CN210362287U CN 210362287 U CN210362287 U CN 210362287U CN 201920326018 U CN201920326018 U CN 201920326018U CN 210362287 U CN210362287 U CN 210362287U
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- nozzle
- cold runner
- cooling water
- runner system
- valve needle
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Abstract
The embodiment of the utility model provides a cold runner system to thermosetting plastic development belongs to liquid heater technical field, the cold runner system includes: a flow distribution plate; a nozzle disposed on the diverter plate; the nozzle includes: an outer body, the outer body being hollow; the inner body is hollow and is arranged in the outer body; the driving cylinder is arranged on the flow distribution plate; the valve needle is connected with the driving cylinder, is arranged in the inner body and controls the opening and closing of the inner body; the cooling water channel is characterized in that grooves are correspondingly formed between the inner body and the outer body, and a cooling water channel is formed by the grooves. The special cold runner system is designed, the forming quality and efficiency are improved, and the waste material cost is saved.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a cold runner system for thermosetting plastic development.
Background
At present, a hot runner is a pouring system applied to an injection mold of thermoplastic materials, and plastic is melted into a molten state after being heated and is injected into a cavity through the pressure of an injection molding machine. Thermoset materials, by contrast, set upon heating and are unable to reform in form repeatedly, are cold runner systems. The thermosetting material injection mold without the cold runner system has the defects that more waste materials are formed, the pressure is high, the product appearance is poor, a stub bar is required to exist, the stub bar cannot be repeatedly converted into a shape or cannot be reused, the material is difficult to clean after being cured, and the material and labor are wasted.
Therefore, the technical problems of the prior art are that the existing injection mold injects thermosetting plastics, the molding is poor, and a stub bar exists.
Disclosure of Invention
The embodiment of the application provides a cold runner system for thermosetting plastic development, and solves the technical problems that the existing injection mold in the prior art is poor in molding and has a stub bar when the thermosetting plastic is injected; the special cold runner system is designed, the forming quality and efficiency are improved, and the waste material cost is saved.
The embodiment of the application provides a cold runner system to thermosetting plastics development, the cold runner system includes: a flow distribution plate; a nozzle disposed on the diverter plate; the nozzle includes: an outer body, the outer body being hollow; the inner body is hollow and is arranged in the outer body; the driving cylinder is arranged on the flow distribution plate; the valve needle is connected with the driving cylinder, is arranged in the inner body and controls the opening and closing of the inner body; the cooling water channel is characterized in that grooves are correspondingly formed between the inner body and the outer body, and a cooling water channel is formed by the grooves.
Preferably, the inner body is provided with a first seal ring and a second seal ring with respect to the cooling water passage, and the first seal ring and the second seal ring are respectively provided at both ends of the cooling water passage.
Preferably, the nozzle is connected to the flow distribution plate by a screw, and the nozzle is provided with an anti-rotation pin with respect to the flow distribution plate.
Preferably, the flow distribution plate is also provided with a cooling water passage, and the cooling water passage on the flow distribution plate is communicated with the cooling water passage on the nozzle.
Preferably, an insulating cap is arranged on the outer side of the nozzle, the insulating cap is sleeved on the valve needle, and the insulating cap is fixedly connected with the nozzle.
Preferably, the nozzle is further provided with a nozzle cap and a nozzle core relative to the valve needle, the nozzle cap is connected with the nozzle, and the nozzle core and the heat insulation cap are arranged between the nozzle cap and the valve needle; and the heat insulation cap is positioned at the outer side of the nozzle core.
Preferably, a valve needle guide sleeve is arranged in the flow distribution plate relative to the valve needle, and the valve needle guide sleeve is sleeved on the valve needle.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
1. in the embodiment of the application, the nozzle is arranged into the inner body and the outer body, and the grooves are processed on the outer side of the inner body and the inner side of the outer body, so that the cooling water path is constructed after the inner body and the outer body are assembled, the thermosetting material can be continuously cooled, and the flowability of the thermosetting material is improved and kept; the opening and closing of the nozzle are realized by utilizing the mode that the driving cylinder drives the valve needle, the valve needle is controlled by the driving cylinder, when the valve needle is opened, the glue is smoothly discharged from the system, when the valve needle is closed, the glue discharging of the system is stopped, and the valve needle needs to be tightly matched with the mold to achieve the glue sealing effect; the occurrence of stub bars is avoided; the technical problems that the existing injection mold in the prior art is poor in molding and has stub bars when thermosetting plastics are injected are solved; the special cold runner system is designed, the forming quality and efficiency are improved, and the waste material cost is saved.
2. In the embodiment of the application, the cold runner system effectively separates the temperature of the system penetrated by the mould by the heat insulation cap, and the solidification of the thermosetting material in the system is avoided.
3. In the embodiment of this application, the cooling water route on the nozzle sets up to the heliciform for body in the cladding that the cooling water route can be comprehensive improves heat exchange efficiency, absorbs the capacity of coming thermosetting material and needle, avoids appearing being stained with the condition of material at the in-process of moulding plastics.
Drawings
FIG. 1 is a schematic top view of a cold runner system developed for thermosetting plastics in an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural view of a nozzle in an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of a nozzle in an embodiment of the present application;
fig. 5 is an enlarged schematic view of the nozzle of fig. 2.
Reference numerals: 1. a flow distribution plate; 2. a cooling water path; 3. an outer body; 4. an anti-rotation pin; 5. an inner body; 51. a first seal ring; 52. a second seal ring; 6. a mouth cap; 7. a mouth core; 8. a valve needle; 9. a heat insulating cap; 10. a valve needle guide sleeve; 11. the cylinder is driven.
Detailed Description
The embodiment of the application provides a cold runner system for development of thermosetting plastics, wherein nozzles are arranged into an inner body 5 and an outer body 3, grooves are processed on the outer side of the inner body 5 and the inner side of the outer body 3, and a cooling water channel 2 is constructed after the inner body 3 and the outer body 3 are assembled, so that the thermosetting materials can be continuously cooled, and the flowability of the thermosetting materials is improved and kept; the opening and closing of the nozzle are realized by utilizing the mode that the driving cylinder 11 drives the valve needle 8, the valve needle 8 is controlled by the driving cylinder 11, when the valve needle 8 is opened, the glue discharging of the system is smooth, when the valve needle 8 is closed, the glue discharging of the system is stopped, and the valve needle 8 needs to be tightly matched with the mold to achieve the glue sealing effect; the occurrence of stub bars is avoided; the technical problems that the existing injection mold in the prior art is poor in molding and has stub bars when thermosetting plastics are injected are solved; the special cold runner system is designed, the forming quality and efficiency are improved, and the waste material cost is saved.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
A cold runner system developed for thermoset plastics, the cold runner system comprising: a flow distribution plate 1; the nozzle is arranged on the flow distribution plate 1; the nozzle includes: an outer body 3, the outer body 3 being hollow; an inner body 5, wherein the inner body 5 is hollow, and the inner body 5 is arranged in the outer body 3; the driving cylinder 11 is arranged on the flow distribution plate 1; the valve needle 8 is connected with the driving cylinder 11, the valve needle 8 is arranged in the inner body 5, and the opening and closing of the inner body 5 are controlled; wherein, the corresponding recess that is provided with between interior body 5 and the outer body 3 to through a cooling water route 2 is established to the recess.
Specifically, a flow channel is arranged in the flow distribution plate 1, and the nozzle and the flow channel are communicated, so that the thermosetting material can flow from the flow distribution plate 1 to the nozzle, and the thermosetting material is gradually output by the cooperation of the nozzle and the valve needle 8.
Specifically, the driving cylinder 11 is a linear telescopic cylinder, wherein a hydraulic driving cylinder is preferred, so that the driving cylinder 11 pushes the valve needle 8 to be stable and not to shake or lose position during injection molding.
The inner body 5 is connected with the outer body 3 without screw thread and only depends on tolerance fit.
The inner body 5 is provided with a first seal ring 51 and a second seal ring 52 with respect to the cooling water passage 2, and the first seal ring 51 and the second seal ring 52 are provided at both ends of the cooling water passage 2, respectively.
Specifically, the first seal ring 51 and the second seal ring 52 are provided to prevent the cooling water passage 2 from leaking to the nozzle, thereby improving the stability of the cooling function and ensuring the stable performance of the injection molding.
The nozzle is connected to the flow distribution plate 1 through a screw, and the nozzle is provided with an anti-rotation pin 4 relative to the flow distribution plate 1.
In particular, the rotation of the nozzle relative to the distributor plate 1 is prevented by the provision of the rotation-preventing pins 4.
The flow distribution plate 1 is also provided with a cooling water path 2, and the cooling water path 2 on the flow distribution plate 1 is communicated with the cooling water path 2 on the nozzle.
Specifically, the cooling water path 2 on the flow distribution plate 1 can maintain the flow channel property of the thermosetting material in order to ensure that the thermosetting material is not cured by heat in the flow channel; the splitter plate 1 can be ensured to be in a stable temperature range, for example, BMC needs about 20 ℃, and cooling water with the temperature of 20 ℃ can be introduced into the splitter plate 1. The cooling water path 2 on the flow distribution plate 1 is communicated with the cooling water path 2 on the nozzle, so that the number of joints of the whole equipment is reduced, the temperature of each part of the whole equipment is kept consistent, and the flowability of the thermosetting material is kept consistent.
The nozzle is provided with a heat insulation cap 9 relative to the valve needle 8, the heat insulation cap 9 is sleeved on the valve needle 8, and the heat insulation cap 9 is fixedly connected with the nozzle.
The nozzle is also provided with a nozzle cap 6 and a nozzle core 7 relative to the valve needle 8, the nozzle cap 6 is connected with the nozzle, and the nozzle core 7 and an insulating cap 9 are arranged between the nozzle cap 6 and the valve needle 8; and the thermal insulation cap 9 is positioned outside the spout core 7.
Specifically, the thermosetting quantity of the mold is required to be heated to more than 150 ℃ so as to cure and mold the material. Therefore, the temperature of the outer end part of the nozzle is higher, so that a heat insulation cap 9 is arranged, the heat insulation cap 9 is made of heat insulation materials, and the heat insulation cap 9 is connected to the nozzle core 7 in a threaded mode or is fixed in the nozzle core 7 through the matching of the nozzle cap 6 and the nozzle core 7.
A valve needle guide sleeve 10 is arranged in the flow distribution plate 1 relative to the valve needle 8, and the valve needle guide sleeve 10 is sleeved on the valve needle 8.
The working principle is as follows:
by arranging the nozzles as the inner body 5 and the outer body 3 and processing grooves on the outer side of the inner body 5 and the inner side of the outer body 3, the cooling water path 2 is constructed after the inner body 3 and the outer body 3 are assembled, the thermosetting material can be continuously cooled, and the flowability of the thermosetting material is improved and maintained; utilize the form that actuating cylinder 11 drove needle 8 to realize the switching of nozzle, needle 8 is controlled by actuating cylinder 11, and when needle 8 opened, the smooth play of system was glued, and when needle 8 closed, the system was glued and is stopped, and needle 8 need closely cooperate with the mould and reach and seal the glue effect.
The technical effects are as follows:
1. in the embodiment of the application, the nozzle is arranged into the inner body and the outer body, and the grooves are processed on the outer side of the inner body and the inner side of the outer body, so that the cooling water path is constructed after the inner body and the outer body are assembled, the thermosetting material can be continuously cooled, and the flowability of the thermosetting material is improved and kept; the opening and closing of the nozzle are realized by utilizing the mode that the driving cylinder drives the valve needle, the valve needle is controlled by the driving cylinder, when the valve needle is opened, the glue is smoothly discharged from the system, when the valve needle is closed, the glue discharging of the system is stopped, and the valve needle needs to be tightly matched with the mold to achieve the glue sealing effect; the occurrence of stub bars is avoided; the technical problems that the existing injection mold in the prior art is poor in molding and has stub bars when thermosetting plastics are injected are solved; the special cold runner system is designed, the forming quality and efficiency are improved, and the waste material cost is saved.
2. In the embodiment of the application, the cold runner system effectively separates the temperature of the system penetrated by the mould by the heat insulation cap, and the solidification of the thermosetting material in the system is avoided.
3. In the embodiment of this application, the cooling water route on the nozzle sets up to the heliciform for body in the cladding that the cooling water route can be comprehensive improves heat exchange efficiency, absorbs the capacity of coming thermosetting material and needle, avoids appearing being stained with the condition of material at the in-process of moulding plastics.
4. In the embodiment of the application, the temperature of the whole system is guaranteed to be constant within the range required by the material, the pressure is given through the injection molding machine, the material flows in the flow channel inside the system, and finally the material is injected into the mold cavity through the glue port, the valve needle of the system is driven by the driving cylinder to be closed to form the sealing glue, the appearance of the product surface is guaranteed to be attractive, the material inside the system is not solidified, the valve needle is opened and can be continuously and circularly injected, waste materials are avoided, the production efficiency is improved, and the product quality.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A cold runner system developed for thermoset plastics, characterized in that it comprises:
a flow distribution plate;
a nozzle disposed on the diverter plate; the nozzle includes:
an outer body, the outer body being hollow;
the inner body is hollow and is arranged in the outer body;
the driving cylinder is arranged on the flow distribution plate;
the valve needle is connected with the driving cylinder, is arranged in the inner body and controls the opening and closing of the inner body;
the cooling water channel is characterized in that grooves are correspondingly formed between the inner body and the outer body, and a cooling water channel is formed by the grooves.
2. The cold runner system of claim 1 wherein said grooves are helically disposed.
3. The cold runner system of claim 1, wherein said inner body is provided with a first and a second sealing ring with respect to said cooling water path, said first and second sealing rings being provided at both ends of said cooling water path, respectively.
4. The cold runner system of claim 1 wherein said nozzle is attached to said diverter plate by screws and said nozzle is provided with anti-rotation pins with respect to said diverter plate.
5. The cold runner system of claim 1 wherein said splitter plate also has cooling water passages provided thereon, and wherein said cooling water passages on said splitter plate are in communication with said cooling water passages on said nozzles.
6. The cold runner system of claim 1 wherein an insulating cap is disposed outside said nozzle, said insulating cap is disposed over said valve needle, and said insulating cap and said nozzle are fixedly connected.
7. The cold runner system of claim 6 wherein said nozzle is further provided with a nozzle cap and a nozzle core relative to said valve needle, said nozzle cap and said nozzle being connected and said nozzle core and a thermal insulation cap being disposed between said nozzle cap and valve needle; and the heat insulation cap is positioned at the outer side of the nozzle core.
8. The cold runner system of claim 1 wherein a needle guide sleeve is disposed within said diverter plate relative to said valve needle, said needle guide sleeve being disposed on said valve needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326018.9U CN210362287U (en) | 2019-03-15 | 2019-03-15 | Cold runner system for thermosetting plastic development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326018.9U CN210362287U (en) | 2019-03-15 | 2019-03-15 | Cold runner system for thermosetting plastic development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210362287U true CN210362287U (en) | 2020-04-21 |
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ID=70245509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920326018.9U Expired - Fee Related CN210362287U (en) | 2019-03-15 | 2019-03-15 | Cold runner system for thermosetting plastic development |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210362287U (en) |
-
2019
- 2019-03-15 CN CN201920326018.9U patent/CN210362287U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 312000 Changfeng Industrial Park, Pingshui Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG HENGDAO TECHNOLOGY Co.,Ltd. Address before: 312000 Changfeng Industrial Park, Pingshan Town, Keqiao District, Shaoxing, Zhejiang, China Patentee before: ZHEJIANG HENGDAO TECHNOLOGY Co.,Ltd. |
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| 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: 20200421 Termination date: 20210315 |