CN204658845U - A kind of injection moulding hot runner gate core modified node method - Google Patents
A kind of injection moulding hot runner gate core modified node method Download PDFInfo
- Publication number
- CN204658845U CN204658845U CN201520242381.4U CN201520242381U CN204658845U CN 204658845 U CN204658845 U CN 204658845U CN 201520242381 U CN201520242381 U CN 201520242381U CN 204658845 U CN204658845 U CN 204658845U
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- injection moulding
- core
- hot runner
- node method
- modified node
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Abstract
A kind of injection moulding hot runner gate core modified node method, comprise the mouth core (1) being arranged at cast gate place, tubulose, it is characterized in that: described mouth core (1) outer setting have be socketed on mouth core (1) outward, play the lining (2) of fixation; The gate part end face of described mouth core (1) coordinates with the lower end surface of described lining (2) and is formed by the edge cambered surface outstanding to center.According to the utility model, cast gate can be made to adapt to the larger situation of nozzle and product face normal direction angle, and maintenance thermal insulating layer on surface is thinner simultaneously, not easily goes out with injection moulding, prevent product surface because the temperature difference produces silver-colored chevilled silk.
Description
Technical field
The utility model relates to injection mold field, more particularly, relates to a kind of modified node method of hot runner gate core.
Background technology
Hot flow path ensures that the plastics of runner and cast gate keep molten condition by the way of heating.Due near runner or center be provided with heating rod and heating collar; the whole runner exporting to cast gate from injection molding machine nozzle is all in the condition of high temperature; make the plastics in runner keep melting, generally do not need to open runner after shutting down and take out solidifying material, then it is temperature required only to need heating flow channel to arrive when starting shooting.Therefore, hot flow path technique is sometimes referred to as hot manifold system, or is called that runnerless mould is moulded.
Excellent, the shortcoming of Hot runner Technology
Hot runner Technology has following benefit compared with the cold runner of routine:
1, save material, be lowered into.
2, shorten molding cycle, improve machine efficiency
3, products surface quality and mechanical property is improved.
4, namely spot pouring mouth can need not be used with shree plates mold.
5, can economically with the shaping single goods of side gate.
6, automaticity is improved.
7, available needle valve cast gate control cast gate is freeze-up.
8, the moulding uniform quality of multi-cavity mold.
9, injection-molded item surface aesthetics is improved.
But each technology all can have the shortcoming of self to exist, and Hot runner Technology is no exception, the characteristic of cast gate affects larger on product quality and manufacturing schedule.
Current hot flow path head has 2 kinds of forms:
1. bulb
The shape of bulb is spherical, nozzle direction and the larger situation of product face normal direction angle can be adapted to and do not come in contact with product face, but the heat insulation injection molding material of one deck formed due to surface is thicker, easily go out with injection moulding, injection molding material in the heat insulation injection molding material gone out and hot flow path has the temperature difference, can form silver-colored chevilled silk on product.
2. tack
The shape of tack is mesa-shaped, and thermal insulation layer is thinner, not easily goes out with injection moulding, but can only adapt to the less situation in nozzle direction and angular separation, product face, if product face normal direction angle is excessive, then can come in contact with product face.If adopt with product basis to less design, processing there will be two angle, and difficulty expense has increase.
Utility model content
For solving the problem, the utility model provides a kind of injection moulding hot runner gate core modified node method, and scheme is as follows
A kind of injection moulding hot runner gate core modified node method, comprises the mouth core being arranged at cast gate place, tubulose, it is characterized in that: described mouth core outer setting has and is socketed on the lining that mouth core is outer, play fixation; The gate part end face of described mouth core coordinates with the lower end surface of described lining and is formed by the edge cambered surface outstanding to center.
Thus, nozzle and the larger angle of product face normal direction can be adapted to.
According to a kind of injection moulding hot runner gate core modified node method described in the utility model, it is characterized in that: the angle of inclination of described cambered surface is 15 °-30 °.
According to a kind of injection moulding hot runner gate core modified node method described in the utility model, it is characterized in that: described cambered surface surface is formed with thermal insulation layer.
According to a kind of injection moulding hot runner gate core modified node method described in the utility model, it is characterized in that: be formed with gap between described mouth core and lining, in described gap, be formed with thermal insulation layer.
According to a kind of injection moulding hot runner gate core modified node method described in the utility model, it is characterized in that: the thickness of described thermal insulation layer is 0.3-0.5mm.
Thus, product surface can be protected not to be temperatures involved in hot flow path, and to ensure the thermal insulation layer that mouth core outer wrap is thinner, not easily go out with injection moulding.
According to the utility model, cast gate can be made to adapt to the larger situation of nozzle and product face normal direction angle, and maintenance thermal insulating layer on surface is thinner simultaneously, not easily goes out with injection moulding, prevent product surface because the temperature difference produces silver-colored chevilled silk.
Accompanying drawing explanation
Fig. 1 is the mouth cored structure of bulb
Fig. 2 is the mouth cored structure of tack
Fig. 3 is mouth cored structure of the present utility model
Wherein 1 be mouth core 2 is lining, and 3 is product face, and 4 is thermal insulation layer
Detailed description of the invention
Embodiment 1
A kind of injection moulding hot runner gate core modified node method, comprises the mouth core being arranged at cast gate place, tubulose, is socketed on the lining that mouth core is outer, play fixation.
The gate part end face of mouth core coordinates with the lower end surface of lining and is formed by the edge cambered surface outstanding to center, and the angle of inclination of cambered surface is 18 °-28 °.
Cambered surface surface is formed with thermal insulation layer, is formed with gap, is formed with thermal insulation layer in gap between mouth core and lining.The thickness of thermal insulation layer is 0.3-0.5mm.
According to the utility model, cast gate can be made to adapt to the larger situation of nozzle and product face normal direction angle, and maintenance thermal insulating layer on surface is thinner simultaneously, not easily goes out with injection moulding, prevent product surface because the temperature difference produces silver-colored chevilled silk.
Claims (5)
1. an injection moulding hot runner gate core modified node method, comprise the mouth core (1) being arranged at cast gate place, tubulose, it is characterized in that: described mouth core (1) outer setting have be socketed on mouth core (1) outward, play the lining (2) of fixation; The gate part end face of described mouth core (1) coordinates with the lower end surface of described lining (2) and is formed by the edge cambered surface outstanding to center.
2. a kind of injection moulding hot runner gate core modified node method according to claim 1, is characterized in that: the angle of inclination of described cambered surface is 15 °-30 °.
3. a kind of injection moulding hot runner gate core modified node method according to claim 1, is characterized in that: described cambered surface surface is formed with thermal insulation layer (4).
4. a kind of injection moulding hot runner gate core modified node method according to claim 1, is characterized in that: be formed with gap between described mouth core and lining, is formed with thermal insulation layer (4) in described gap.
5. a kind of injection moulding hot runner gate core modified node method according to claim 3, is characterized in that: the thickness of described thermal insulation layer (4) is 0.3-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520242381.4U CN204658845U (en) | 2015-04-20 | 2015-04-20 | A kind of injection moulding hot runner gate core modified node method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520242381.4U CN204658845U (en) | 2015-04-20 | 2015-04-20 | A kind of injection moulding hot runner gate core modified node method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204658845U true CN204658845U (en) | 2015-09-23 |
Family
ID=54129270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520242381.4U Expired - Fee Related CN204658845U (en) | 2015-04-20 | 2015-04-20 | A kind of injection moulding hot runner gate core modified node method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204658845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524808A (en) * | 2019-08-23 | 2019-12-03 | 苏州英新泰精密模具有限公司 | A kind of bull nozzle side gate hot runner system |
-
2015
- 2015-04-20 CN CN201520242381.4U patent/CN204658845U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524808A (en) * | 2019-08-23 | 2019-12-03 | 苏州英新泰精密模具有限公司 | A kind of bull nozzle side gate hot runner system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150923 Termination date: 20160420 |