CN208697875U - A kind of hot runner structure of precise injection mould - Google Patents
A kind of hot runner structure of precise injection mould Download PDFInfo
- Publication number
- CN208697875U CN208697875U CN201821462242.2U CN201821462242U CN208697875U CN 208697875 U CN208697875 U CN 208697875U CN 201821462242 U CN201821462242 U CN 201821462242U CN 208697875 U CN208697875 U CN 208697875U
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- Prior art keywords
- hot
- flow path
- injection
- runner
- valve pocket
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Abstract
The utility model discloses a kind of hot runner structure for the precise injection mould for being related to injection mold, including fixed plate and hot flow path, cast gate is provided in the fixed plate.Cast gate is connected to hot flow path, and hot flow path periphery is provided with heating mantle and insulating layer, and hot flow path lower end connects valve for sealing material by runner exit, and device lower end is provided with sensor, alarm and positioning column.Material state is detected using sensor, heating mantle heats material, switch control heating temperature, and the quality of injection molding is made be in slave mode, prevented to be heated because of material it is insufficient caused by deform, phenomena such as warpage.Insulating layer is set in heating mantle and injection moulding apparatus, improves the utilization rate of heat, prevents other elements heated and service life of equipment is caused to reduce, setting positioning column preferably positions hot nozzle and mold injection mouth.Setting valve for sealing material controls material, and only injection molding Shi Caiyou material is sprayed out of hot nozzle, avoids the waste of material and pollutes.
Description
Technical field
The utility model relates to a kind of injection mold, the hot runner structure of specifically a kind of precise injection mould.
Background technique
Die structure of hot runner and two template die lamps structures are essentially identical, are divided into insulation hot runner system and heating hot flow path system
System is insulated hot flow path, is to be made around runner using the very low material of pyroconductivity, is kept the temperature with the plastic cement of melting, heating
Hot flow path is controlled the temperature of runner by heating sheet on runner, is currently used for the hot runner system of injection molding, generally includes
Hot nozzle, flow distribution plate and temperature controller.Hot nozzle fits with plate surface is shunted, and temperature controller is used to control the melting temperature of plastics
And fusion time, when carrying out injection molding, molten plastic is flowed at hot nozzle by flow distribution plate, to reach mould type
Chamber carries out injection molding.The product of hot runner system to be likely to occur wall unevenness even, in cooling procedure, warpage occurs
Phenomenon, the density that often will cause product increases, so that product weight improves, waste.
Chinese patent (notification number: 203818476 U of CN, the day for announcing: 2014.09.10) discloses a kind of injection mold
Hot runner system, including dynamic model part and cover half part, are arranged screw on fixed clamping plate, fixed for the fixation of fixed clamping plate
Baffle plate is simultaneously equipped with locating ring, and hot flow path is equipped in cover half, is hot nozzle in hot flow path one end, is arranged on moving clamping plate and leads
Column is equipped with needle, seals and set at valve needle cover upper surface and needle cooperation wherein the hot nozzle includes valve needle cover in the valve needle cover
It sets, the injection device is connected with valve needle cover, in the hot flow path into mold cavity injection plastic process, in injection device
Gas through between valve needle cover and needle gap compressing be located at the gap in molten plastic enter mold cavity jointly, this makes
Phenomena such as plastics are fully filled with type chamber, and can prevent product from deforming, warpage.But exist using between valve pocket and needle
Gap is easy to happen material leakage, while needle positions generation resistance in easy injection moulding process and causes injection molding uneven.
Utility model content
The purpose of this utility model is to provide a kind of hot runner structures of precise injection mould, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions:
A kind of hot runner structure of precise injection mould, including fixed plate, hot flow path, heating system and adapted to injection system, institute
Vertical cast gate is provided in the fixed plate stated, the upper end of cast gate is provided with sprue bush, and cast gate connects external material delivery pipe, pours
Muzzle seals, and prevents from leaking during material transferring.The upper surface of fixed plate is provided with switch, switch connection external electrical
Source.It is provided with screw hole in fixed plate, screw is provided in screw hole, the heating system of fixed plate and its lower end is fixed on one by screw
It rises, heating system is provided with adapted to injection system.
The cast gate is connected to hot flow path, and the periphery of hot flow path is provided with heating mantle, and the periphery of heating mantle is provided with heat preservation
Layer.Heating mantle and switch are electrically connected, by the switch and output power of the adjustable heating mantle of regulating switch, so that control adds
Hot temperature.Insulating layer keeps the temperature heating mantle, prevent heat loss and other elements heat damage and reduce longevity of equipment
Life.The lower end of the hot flow path is connected to runner exit, and the periphery of runner exit is again provided with insulating layer.
The valve for sealing material includes valve chamber, spring, guide post and valve pocket.The guiding top end is fixed on heating system
On, guide post periphery is nested with spring, and lower spring end is provided with valve pocket, and valve pocket is nested in guide post, and valve pocket side is provided with
The end of sets of holes, valve pocket is provided with hot nozzle.When being molded to mold, hot nozzle is corresponding with the injection hole of mold, valve pocket
After being under pressure, valve pocket, which moves up, is connected to sets of holes with runner exit, and material flows into valve pocket from hot flow path, finally sprays from hot nozzle
Out.When completing injection molding, device is moved up, and spring restores deformation, and valve pocket moves down, and sets of holes and runner exit disconnect.Material can not send heat
Spout sprays.
As a further solution of the present invention: runner exit is L-type structure.The end of runner exit level is provided with
Valve for sealing material.
As a further solution of the present invention: the valve pocket is tubular structure, and top is provided with circle limit
Foot, position-limit foot limit the extension elongation of valve pocket.
As a further solution of the present invention: adapted to injection system lower surface is provided with positioning column, on positioning column and mold
Surface location hole matches, and accurately positions hot nozzle with injection hole in injection molding.
As a further solution of the present invention: sensor is arranged in runner exit, alarm is set on adapted to injection system
Device, sensor and alarm are electrically connected.
As a further solution of the present invention: sensor can detecte the temperature or consistency of material in runner exit
Etc. physical parameters, so that it is determined that the state of material.When temperature or consistency of material etc. are more than specified value in runner exit, report
Alert device alarm.
Compared with prior art, the utility model has the beneficial effects that being detected using sensor to material state, add
Hot jacket heats material, switch control heating temperature, make injection molding quality be in slave mode, prevented because of material by
Phenomena such as deformation caused by the injection molding that heat is insufficient and occurs is uneven, warpage.Heat preservation is set in heating mantle and injection moulding apparatus
Layer, improves the utilization rate of heat, while preventing other elements heated and damaging causes service life of equipment to reduce, setting positioning
Column preferably positions hot nozzle and mold injection mouth.Setting valve for sealing material controls material, only injection molding Shi Caiyou material
It sprays and is molded out of hot nozzle, avoid the waste of material and pollute.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the hot runner structure embodiment 1 of precise injection mould.
Fig. 2 is the structural schematic diagram of valve for sealing material in a kind of hot runner structure of precise injection mould.
Fig. 3 is a kind of structural schematic diagram of the hot runner structure embodiment 2 of precise injection mould.
In figure, cast gate 1, sprue bush 2, hot flow path 3, screw 4, switch 5, fixed plate 6, insulating layer 7, heating mantle 8, valve for sealing material
9, runner exit 10, positioning column 11, valve chamber 12, spring 13, guide post 14, position-limit foot 15, valve pocket 16, sets of holes 17, hot nozzle 18,
Sensor 19, alarm 20, heating system 21, adapted to injection system 22.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of hot runner structure of precise injection mould referring to FIG. 1-2, including fixed plate 6, hot flow path 3, heating system
21 and adapted to injection system 22, vertical cast gate 1 is provided in the fixed plate 6, and the upper end of cast gate 1 is provided with sprue bush 2, cast gate
1 connects external material delivery pipe, and sprue bush 2 seals, and prevents from leaking during material transferring.The upper surface of fixed plate 6
It is provided with switch 5, switch 5 is connected to external power supply.It is provided with screw hole in fixed plate 6, screw 4 is provided in screw hole, screw 4 will be consolidated
Fixed board 6 and the heating system 21 of its lower end are fixed together, and heating system 21 is provided with adapted to injection system 22.
The cast gate 1 is connected to hot flow path 3, and the periphery of hot flow path 3 is provided with heating mantle 8, and the periphery of heating mantle 8 is provided with
Insulating layer 7.Heating mantle 8 and the electric connection of switch 5, by the switch and output power of the adjustable heating mantle 8 of regulating switch 5,
To control heating temperature.Insulating layer 7 keeps the temperature heating mantle 8, prevent heat loss and other elements heat damage and
Reduce the service life of equipment.The lower end of the hot flow path 3 is connected to runner exit 10, and the periphery of runner exit 10 is again provided with guarantor
Warm layer 7.Runner exit 10 is L-type structure.The horizontal end of runner exit 10 is provided with valve for sealing material 9.
The valve for sealing material 9 includes valve chamber 12, spring 13, guide post 14 and valve pocket 16.14 top of guide post is solid
It is scheduled in heating system 21,14 periphery of guide post is nested with spring 13, and 13 lower end of spring is provided with valve pocket 16, and valve pocket 16 is nested in
In guide post 14, the valve pocket 16 is tubular structure, and top is provided with a circle position-limit foot 15, and position-limit foot 15 limits valve pocket 16
Extension elongation.16 side of valve pocket is provided with sets of holes 17, and the end of valve pocket 16 is provided with hot nozzle 18.It is molded when to mold
When, hot nozzle 18 is corresponding with the injection hole of mold, and after valve pocket 16 is under pressure, valve pocket 16, which moves up, makes sets of holes 17 and runner exit 10
Connection, material flow into valve pocket 16 from hot flow path 3, finally spray from hot nozzle 18.When completing injection molding, device is moved up, spring 13
Restore deformation, valve pocket 16 moves down, and sets of holes 17 and runner exit 10 disconnect.Material can not send thermal jet mouth 18 to spray.Adapted to injection system 22
Lower surface is provided with positioning column 11, and positioning column 11 matches with mould upper surface location hole, in injection molding by hot nozzle 8 and injection molding
The accurate positioning of mouth.
The working principle of the utility model is: when being molded to mold, connect external power supply, by material delivery pipe with pour
1 connection of mouth, turns on the switch 5 and adjusts heating temperature.Material flows into hot flow path 3 from cast gate 1, and heating mantle 8 is to object in hot flow path 3
Material is heated.Material dissolves in laggard air stream enter runner outlet 10 by the heating of hot flow path 3, device is put on mold, guide post
14 coincide with the location hole on mold, well navigate to hot nozzle 18 on the injection hole of mold.Device pushes, hot nozzle 18
The effect of being under pressure moves up valve pocket 16, and sets of holes 17 are connected to runner exit 10, and the material after thawing is flowed into from runner exit 10
In valve pocket 16, then through the injection die for molding of hot nozzle 18.After injection molding is complete, device is lifted, and valve pocket 16 is under by spring deformation power
It moves, sets of holes 17 and runner exit 10 disconnect, and material can not flow out.
Embodiment 2
Referring to Fig. 3, on the basis of embodiment 1, sensor 19 is arranged in runner exit 10, sensor 19 can be examined
The physical parameters such as temperature or consistency of material in measurement flow channel outlet 10, so that it is determined that the state of material.It is set on adapted to injection system 22
Alarm 20 is set, sensor 19 and alarm 20 are electrically connected, when the temperature or consistency etc. of material in runner exit 10 are more than
When specified value, alarm 20 is alarmed.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (5)
1. a kind of hot runner structure of precise injection mould, including fixed plate (6), hot flow path (3), heating system (21) and injection molding
System (22) is provided with vertical cast gate (1) in the fixed plate (6), and the upper end of cast gate (1) is provided with sprue bush (2), Gu
The upper surface of fixed board (6) is provided with switch (5), and screw hole is provided in fixed plate (6), and screw (4), screw are provided in screw hole
(4) fixed plate (6) and the heating system (21) of its lower end being fixed together, the cast gate (1) is connected to hot flow path (3),
It is characterized in that, the adapted to injection system (22) is arranged in the lower end of heating system (21), and the periphery of hot flow path (3) is provided with heating
It covers (8), the periphery of heating mantle (8) is provided with insulating layer (7), and heating mantle (8) and switch (5) are electrically connected, the hot flow path
(3) lower end is connected to runner exit (10), and runner exit (10) end is provided with valve for sealing material (9), and the valve for sealing material (9) includes
Valve chamber (12), spring (13), guide post (14) and valve pocket (16), the guide post (14) top are fixed on heating system (21)
On, guide post (14) periphery is nested with spring (13), and spring (13) lower end is provided with valve pocket (16), and valve pocket (16) is nested in guiding
On column (14), valve pocket (16) side is provided with sets of holes (17), and the end of valve pocket (16) is provided with hot nozzle (18).
2. a kind of hot runner structure of precise injection mould according to claim 1, which is characterized in that the runner goes out
Mouth (10) is L-type structure.
3. a kind of hot runner structure of precise injection mould according to claim 1 or 2, which is characterized in that the institute
The valve pocket (16) stated is tubular structure, and top is provided with a circle position-limit foot (15).
4. a kind of hot runner structure of precise injection mould according to claim 3, which is characterized in that the injection molding system
System (22) lower surface is provided with positioning column (11).
5. a kind of hot runner structure of precise injection mould according to claim 1, which is characterized in that the runner goes out
Sensor (19) are set in mouth (10), alarm (20) are set on adapted to injection system (22), sensor (19) and alarm (20) are electric
Property connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821462242.2U CN208697875U (en) | 2018-09-07 | 2018-09-07 | A kind of hot runner structure of precise injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821462242.2U CN208697875U (en) | 2018-09-07 | 2018-09-07 | A kind of hot runner structure of precise injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208697875U true CN208697875U (en) | 2019-04-05 |
Family
ID=65946195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821462242.2U Expired - Fee Related CN208697875U (en) | 2018-09-07 | 2018-09-07 | A kind of hot runner structure of precise injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208697875U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331793A (en) * | 2019-04-17 | 2020-06-26 | 黄德金 | Hot runner structure, injection mold and injection molding method |
| CN112277264A (en) * | 2020-11-29 | 2021-01-29 | 苏州拓沃斯热流道科技有限公司 | Hot runner flow distribution plate assembly and hot runner system |
| CN113715261A (en) * | 2020-11-16 | 2021-11-30 | 上海瀚典热流道科技有限公司 | Effectual hot runner injection structure keeps warm |
-
2018
- 2018-09-07 CN CN201821462242.2U patent/CN208697875U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331793A (en) * | 2019-04-17 | 2020-06-26 | 黄德金 | Hot runner structure, injection mold and injection molding method |
| CN113715261A (en) * | 2020-11-16 | 2021-11-30 | 上海瀚典热流道科技有限公司 | Effectual hot runner injection structure keeps warm |
| CN112277264A (en) * | 2020-11-29 | 2021-01-29 | 苏州拓沃斯热流道科技有限公司 | Hot runner flow distribution plate assembly and hot runner system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 Termination date: 20210907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |