CN203125853U - Straight-through type hot nozzle of hot runner - Google Patents
Straight-through type hot nozzle of hot runner Download PDFInfo
- Publication number
- CN203125853U CN203125853U CN 201220583671 CN201220583671U CN203125853U CN 203125853 U CN203125853 U CN 203125853U CN 201220583671 CN201220583671 CN 201220583671 CN 201220583671 U CN201220583671 U CN 201220583671U CN 203125853 U CN203125853 U CN 203125853U
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- CN
- China
- Prior art keywords
- hot mouth
- hot
- tongued
- sharp
- runner
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- Expired - Fee Related
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Abstract
The utility model relates to a straight-through type hot nozzle of a hot runner; the straight-through type hot nozzle comprises a hot nozzle body (6) which is provided with a thermoelectric couple (5) and a heating wire wound on the hot nozzle body (6); a hot nozzle tip (7) is fixed in the hot nozzle body (6) by a wrench ring (8); the straight-through type hot nozzle is characterized in that the circumference of the small end of the hot nozzle tip (7) is in transition fit connection with a mould cavity by H7g6; a hot nozzle body runner (11) is in smooth connection with a nozzle tip runner (10); the connecting part between the nozzle tip runner (10) and an external runner is in a horn shape; and the small end part of the nozzle tip runner (10) is in a reversed cone shape without a corner. The straight-through type hot nozzle of the hot runner has the advantages of being convenient to install and low in cavity processing requirements, reducing the maintenance cost of a mould and improving the production efficiency.
Description
[technical field]
The utility model relates to the hot flow path technical field in the injection moulding apparatus, relates in particular to the hot mouth of hot flow path through type.
[background technology]
The hot mouth of through type is as the hot flow path parts on the injection moulding apparatus, and the existing hot mouth of through type comprises hot mouth body and the logical mouth sprue bush that cooperates with described hot mouth body, cooperates by screw between this logical mouth sprue bush and the described hot mouth body.Be provided with heating wire and thermocouple in hot mouth body periphery; outside heating wire, be provided with the overcoat of protection heating wire; because described hot mouth is straight-through structure; in injection flow preferably during sizing material; as just causing flash or running phenomenon under the bad situation of pectin mouth position and size and temperature control; cause easily expecting mouthful stopping up and can't inject again or bad etc. situation appears in the shaped article quality, especially more obvious to the plastics of hot shearing sensitivity.The hot mouth of through type commonly used is because of need processing mounting holes position on Die and mould plate simultaneously, and its requirement on machining accuracy height is being installed and safeguarded and brought great inconvenience.
[summary of the invention]
At the shortcoming of prior art, the purpose of this utility model be to provide a kind of easy for installation, the mold cavity processing request is low, maintenance cost is low, the hot mouth of hot flow path through type of high efficiency.
The technical scheme that its technical problem that solves the utility model adopts is: provide a kind of hot flow path through type hot mouth, comprise hot mouth body, be provided with thermocouple and be wrapped in heating wire on the described hot mouth body at hot mouth body, hot mouth is sharp-tongued to be fixed in the hot mouth body by spanner, it is characterized in that: the sharp-tongued small end circumference of described hot mouth adopts the H7g6 interference fits to be connected with adaptive sealing with mold cavity; Hot mouth body runner and described sharp-tongued runner smooth connection, and this sharp-tongued runner and outer flow passage junction flare, sharp-tongued runner small end is divided into inverted cone shape is not had corner.
In embodiment of the present utility model, the sharp-tongued fracture point of hot mouth be arranged on heater element spacing 2～10mm scope in, so both guaranteed cast gate not Yin Wendu cross low and the plastic emitting difficulty, also guarantee not can Yin Wendu too high and problem such as hydrostomia occurs.
Described hot mouth can be provided with seal washer in hot mouth body rear end, so as with the sealing of other connectors, prevent from causing heater element etc. to cause damage because leaking glue.
Described hot mouth can be with steel bushing in the heating wire outer ring, is not damaged for the protection of heater element, and its steel bushing leans on out cast gate one end can be provided with snap ring, is fixed on the body, plays the steel bushing effect of coming off that prevents.
Hot mouth stop pin can be set, and this hot mouth stop pin can be placed on hot mouth flange side, and is vertically positioned in end face of flange.Reduce processing request, and easy for installation, play location and anti-rotation effect.
Described hot mouth flange height can reduce, and can adopt end face, step to cooperate with mould, and simplicity of design reduces the die cavity processing request, and the mould maintenance cost, enhances productivity.
The sharp-tongued external diameter of described hot mouth can be that H7g6 cooperates with the spanner endoporus, by the spanner thread it is connected with hot mouth body, and by spanner thread coupling mechanism force with sharp-tongued big bottom face and body endoporus step surface, and spanner bottom surface three compress applying.Wherein sharp-tongued big end circumference and body endoporus cunning are joined, and guarantee that sizing material does not bleed back in the sprue of body and problem such as glue occurs leaking.
Described hot mouth portion structure can adopt beryllium copper (spanner) Baogang's core (sharp-tongued), the head beryllium copper is delivered to the heating wire temperature on sharp-tongued that steel core makes, make that the temperature transmission is even, avoid sharp-tongued direct contact heating silk to cause the too high hydrostomia phenomenon that occurs of local temperature, can guarantee again cast gate not the Yin Wendu phenomenon of crossing low and plastic emitting difficulty occur.
Hot mouth rear body can have seal washer, in order to seal with other connectors.
In the hot mouth body thermocouple can be arranged, for detection of hot mouth temperature.
Hot mouth body front end can have snap ring that steel bushing is located.
Preferably, described hot mouth gummosis amount increases.
Preferably, described hot mouth stop pin is placed on hot mouth side, and is vertical with end face of flange.
Preferably, described hot mouth end face of flange supports circumferential registration.
Preferably, described hot mouth body cooperates with the spanner thread.
Preferably, the sharp-tongued fracture point of described hot mouth and heater element spacing are in 2～10mm scope.
Preferably, described hot mouth can be realized complete colour changing requirement.
The hot mouth of the utility model through type is located in the hot mouth body by the spanner fixed cover by described hot mouth is sharp-tongued.Main fluid smooth connection in main fluid and the described hot mouth body in this hot mouth is sharp-tongued, and do not have corner, can realize complete colour changing requirement.In addition sharp-tongued fracture point and heater element spacing be in 2～10mm scope, both guaranteed cast gate not Yin Wendu cross low and the plastic emitting difficulty, also guarantee not can Yin Wendu too high and problem appearance such as hydrostomia occurs.Simultaneously hot mouth adopts end face, step to cooperate with mould, and simplicity of design reduces the die cavity processing request, and the mould maintenance cost, enhances productivity.
The beneficial effects of the utility model are: simple in structure, easy for installation, the die cavity processing request is low, and can reduce the mould maintenance cost, enhance productivity.
[description of drawings]
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is the hot mouth embodiment of the utility model through type longshore current body passage aspect cross-sectional schematic;
Fig. 2 is the hot mouth gum outlet of the utility model through type place enlarged diagram.
Among the figure: 1 be seal washer, 2 for stop pin, 3 for steel bushing, 4 for heating wire, 5 for thermocouple, 6 for hot mouth body, 7 sharp-tongued for hot mouth, 8 for spanner, 9 for snap ring, 10 for sharp-tongued runner, 11 for hot mouth body runner.
[specific embodiment]
Referring to Fig. 1, the hot mouth of the utility model hot flow path through type, comprise hot mouth body 6, be provided with thermocouple 5 and be wrapped in heating wire on the described hot mouth body 6 at hot mouth body 6, hot mouth sharp-tongued 7 is fixed in the hot mouth body 6 by spanner 8, it is characterized in that: the sharp-tongued 7 small end circumference of described hot mouth adopt the H7g6 interference fits to be connected suitable sealing with mold cavity; Hot mouth body runner 11 and described sharp-tongued runner 10 smooth connections, and this sharp-tongued runner 10 and outer flow passage junction flare, sharp-tongued runner 10 small end are divided into inverted cone shape is not had corner.
More particularly, described hot mouth body 6 is provided with hot mouth body runner 11 and described hot mouth sharp-tongued 7 interior sharp-tongued runner 10 smooth connections, and this sharp-tongued runner 10 and runner junction flare.Sharp-tongued runner 10 small end are divided into the material mouth, become inverted cone shape not have corner, and sizing material does not have defective material and is detained when flowing, can realize complete colour changing requirement.
In preferred embodiment of the present utility model:
The sharp-tongued fracture point of hot mouth be arranged on heater element spacing 2～10mm scope in, so both guaranteed cast gate not Yin Wendu cross low and the plastic emitting difficulty, also guarantee not can Yin Wendu too high and problem such as hydrostomia occurs.
Described hot mouth is provided with seal washer 1 in hot mouth body 6 rear ends, so as with the sealing of other connectors, prevent from causing heater element etc. to cause damage because leaking glue.
Described hot mouth is provided with thermocouple 5 in hot mouth body 6, for detection of hot mouth temperature, and control and required parameter when regulating the production injection moulding.
Described hot mouth tightly is wrapped on the hot mouth body 6 in heating wire 4, is used for providing hot mouth energy operate as normal required temperature.
Described hot mouth is with steel bushing 3 in heating wire 4 outer rings, is not damaged for the protection of heater element, and its steel bushing 3 leans on out cast gate one end to be provided with snap ring 9, is fixed on the body 6, plays the steel bushing effect of coming off that prevents.
Hot mouth stop pin 2 is placed on hot mouth flange side, and is vertically positioned in end face of flange.Reduce processing request, and easy for installation, play location and anti-rotation effect.
Described hot mouth flange height can reduce, and adopts end face, step to cooperate with mould, and simplicity of design reduces the die cavity processing request, and the mould maintenance cost, enhances productivity.
Sharp-tongued 7 external diameters of described hot mouth cooperate with spanner 8 endoporus H7g6, by spanner 8 threads it is connected with hot mouth body 6, and by spanner 8 thread coupling mechanism forces with sharp-tongued 7 big bottom faces and body 6 endoporus step surfaces, and spanner 8 bottom surface threes compress applying.Wherein sharp-tongued 7 big end circumference are joined with body 6 endoporus cunnings, guarantee that sizing material does not bleed back in the sprue of body 6 and problem such as leakage glue occurs.
Described hot mouth portion structure adopts beryllium copper (spanner 8) Baogang's core (sharp-tongued 7), the head beryllium copper with the heating wire temperature be delivered to that steel core makes sharp-tongued 7 on, make that the temperature transmission is even, avoid sharp-tongued 7 direct contact heating silks 5 to cause the too high hydrostomia phenomenon that occurs of local temperature, can guarantee again cast gate not the Yin Wendu phenomenon of crossing low and plastic emitting difficulty occur.
The common charging of the hot mouth of this novel through type is changeed the cast gate of diving then and is advanced product, but also can directly advance glue in product surface for the not high inside gadget of appearance requirement in the mold cold runner.Be fit to some heavy wall plastics of injection moulding simultaneously, contain the material of additive, to the material of hot shearing sensitivity and need the product of high speed and high pressure moulding.
The material that is fit to this structure has: PVC, LCP, PBT, POM, PPS, PEEK, PC+ABS, PC+PBT etc., and some add the material of talcum powder, fire retardant, carbon fibre, glass additive.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. hot mouth of hot flow path through type, comprise hot mouth body (6), be provided with thermocouple (5) and be wrapped in heating wire on the described hot mouth body (6) at hot mouth body (6), hot mouth sharp-tongued (7) is fixed in the hot mouth body (6) by spanner (8), it is characterized in that: described hot mouth sharp-tongued (7) small end circumference adopts the H7g6 interference fits to be connected with mold cavity; Hot mouth body runner (11) and sharp-tongued runner (10) smooth connection, and this sharp-tongued runner (10) and outer flow passage junction flare, small end is divided into inverted cone shape to sharp-tongued runner (10) does not have corner.
2. the hot mouth of hot flow path through type according to claim 1 is characterized in that: the sharp-tongued fracture point of hot mouth be arranged on heater element spacing 2～10mm scope in.
3. the hot mouth of hot flow path through type according to claim 1 and 2, it is characterized in that: described hot mouth body (6) rear end is provided with seal washer (1).
4. the hot mouth of hot flow path through type according to claim 1 and 2, it is characterized in that: described hot mouth body (6) is with steel bushing (3) in heating wire (4) outer ring, and steel bushing (3) leans on out cast gate one end to be provided with snap ring (9), is fixed on the hot mouth body (6).
5. the hot mouth of hot flow path through type according to claim 1 and 2, it is characterized in that: described hot mouth sharp-tongued (7) external diameter adopts H7g6 to cooperate with spanner (8) endoporus, by spanner (8) thread it is connected with hot mouth body (6), and by spanner (8) thread coupling mechanism force the big bottom face of hot mouth sharp-tongued (7) and hot mouth body (6) endoporus step surface and spanner (8) bottom surface three is compressed applying; Wherein hot mouth sharp-tongued (7) holds circumference and hot mouth body (6) endoporus cunning to join greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583671 CN203125853U (en) | 2012-11-07 | 2012-11-07 | Straight-through type hot nozzle of hot runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583671 CN203125853U (en) | 2012-11-07 | 2012-11-07 | Straight-through type hot nozzle of hot runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203125853U true CN203125853U (en) | 2013-08-14 |
Family
ID=48933871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220583671 Expired - Fee Related CN203125853U (en) | 2012-11-07 | 2012-11-07 | Straight-through type hot nozzle of hot runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203125853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859007A (en) * | 2018-06-14 | 2018-11-23 | 珠海格力精密模具有限公司 | Hot flow path heats mouth structure and the injection mold with it |
-
2012
- 2012-11-07 CN CN 201220583671 patent/CN203125853U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859007A (en) * | 2018-06-14 | 2018-11-23 | 珠海格力精密模具有限公司 | Hot flow path heats mouth structure and the injection mold with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Xianhai Document name: Notification of Passing Examination on Formalities |
|
| 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: 20130814 Termination date: 20211107 |