CN207403101U - Nozzle assembly and hot-runner injection mold device - Google Patents
Nozzle assembly and hot-runner injection mold device Download PDFInfo
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- CN207403101U CN207403101U CN201721389497.6U CN201721389497U CN207403101U CN 207403101 U CN207403101 U CN 207403101U CN 201721389497 U CN201721389497 U CN 201721389497U CN 207403101 U CN207403101 U CN 207403101U
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- sealing ring
- hot
- flow path
- nozzle assembly
- hot flow
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Abstract
The utility model discloses a kind of nozzle assembly and hot-runner injection mold devices, wherein, the nozzle assembly is used for hot-runner injection mold device, the nozzle assembly includes nozzle body and sealing ring, run through in the nozzle body and be equipped with fluid passageway, the import of the fluid passageway is used to be connected with hot flow path cavity, the sealing ring is set around the import, and for being arranged between hot flow path body and the nozzle body, filled cavity is equipped in the sealing ring, offer through hole on the inner surface of the sealing ring is connected with the filled cavity.The utility model can avoid hot-runner injection mold device from repeatedly shutting down the leak adhesive problem started shooting and caused between nozzle assembly and hot flow path body.
Description
Technical field
The utility model is related to hot-runner device technical fields, and in particular to a kind of nozzle assembly and hot runner plastic injection mould
Device.
Background technology
In the prior art, frequently with hot-runner injection mold device workpieces processing.Hot-runner injection mold device includes solid
Upper die of shaping (referred to as " cover half ") forms the movable type lower mould (referred to as " dynamic model ") of forming cavity, institute together with cover half
It states cover half and connects the forming cavity equipped with cast gate.The cover half includes hot flow path body and interior spray equipped with hot flow path cavity
Mouth, the resin of melting are stored in hot flow path cavity, are discharged by inner nozzle from cast gate, workpiece is formed after solidification.
When carrying out small lot production, it is necessary to frequently replace dynamic model, needed before replacing dynamic model hot flow path body is near
Room temperature, so as to cause the frequent hot and cold alternation of hot flow path body.Due to the principle expanded with heat and contract with cold, frequently heating cooling causes hot flow path
Body and inner nozzle cause friction to generate abrasion due to expanding with heat and contract with cold, and leakproofness reduces, in hot flow path body the resin of melting from
Gap outflow between hot flow path body and inner nozzle, causes leak adhesive phenomenon.
Therefore, it is necessary to providing a kind of new hot-runner injection mold device solves above-mentioned technical problem.
Utility model content
The main purpose of the utility model is to provide the HOT RUNNER INJECTION MOULD of a kind of nozzle assembly and the application nozzle assembly
Has device, it is intended to solve existing hot-runner injection mold device and repeatedly shut down start to cause between nozzle assembly and hot flow path body
The technical issues of leak adhesive.
To achieve the above object, the utility model proposes nozzle assembly for hot-runner injection mold device, the spray
Nozzle assembly includes nozzle body and sealing ring, runs through in the nozzle body and is equipped with fluid passageway, the import of the fluid passageway
For being connected with hot flow path cavity, the sealing ring is set around the import, and for arranged on hot flow path body and described
Between nozzle body, filled cavity is equipped in the sealing ring, through hole and the filling are offered on the inner surface of the sealing ring
Chamber is connected.
Preferably, the filled cavity is located in the sealing ring.
Preferably, the nozzle body is recessed to form mounting groove close to the mounting surface of the sealing ring, and the sealing ring is set
In in the mounting groove and protruding from the mounting surface.
Preferably, the sealing ring protrudes from 0.45~0.5 millimeter of the mounting surface.
Preferably, the sealing ring is stainless steel sealing ring.
Preferably, the hardness of the sealing ring is less than the hardness of the nozzle body.
The utility model additionally provides a kind of hot-runner injection mold device, including fixed half and moving half, the cover half and institute
It states and forming cavity is formed between dynamic model, the cover half includes hot flow path body, cast gate and nozzle assembly as the aforementioned, the hot flow path
Hot flow path cavity is equipped in body, the nozzle assembly is connected between the hot flow path body and the cast gate.
Preferably, the opening direction of the through hole is towards the hot flow path cavity.
Preferably, the hardness of the sealing ring is less than the hardness of the hot flow path body.
Preferably, the hot-runner injection mold device further includes the needle-valve arranged on the hot flow path cavity, the needle-valve
For being turned on and off the cast gate.
When nozzle assembly in technical solutions of the utility model is applied to hot-runner injection mold device, hot flow path is avoided that
Friction between body and nozzle body, the problem of so as to reduce leak adhesive；After a period of time, sealing can be directly replaced
Circle increases the service life of nozzle body；By setting through hole and filled cavity on sealing ring, hot flow path body can be effectively kept
With the seal between nozzle body, hot flow path body.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.
Fig. 1 is the dimensional structure diagram of one embodiment of the utility model nozzle assembly；
Fig. 2 is the principle schematic of one embodiment of the utility model nozzle assembly；
Fig. 3 is the structure diagram of one embodiment of the utility model hot-runner injection mold device.
Drawing reference numeral explanation：
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each component etc., such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, it and cannot be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for description purpose
It solves to indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in the description of the utility model
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " can be fixedly connected or be detachably connected or integrally；It can be mechanical connection, also may be used
Be electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be the connection inside two elements
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.
In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of nozzle assemblies.
Fig. 1 is refer to, is the dimensional structure diagram of one embodiment of the utility model nozzle assembly.In the utility model one
In embodiment, which is used for hot-runner injection mold device 100, and nozzle assembly 1 includes nozzle body 11 and sealing ring
13, nozzle body 11 is interior to be run through equipped with fluid passageway 111, and the import 113 of fluid passageway 111 is used to be connected with hot flow path cavity 31
Logical, sealing ring 13 is set around import 113, and for being arranged between hot flow path body 3 and nozzle body 11, is set in sealing ring 13
There is filled cavity 131, through hole 133 is offered on the inner surface of sealing ring 13 and is connected with filled cavity 131.
Referring to Fig. 2, the principle schematic for one embodiment of the utility model nozzle assembly.Specifically, when the sealing ring
13 be used for hot-runner injection mold device 100 when, in the operating condition, in hot flow path cavity 31 can be full of melting resin, when
It can also be so other heated injection raw materials, only illustrate herein.The resin of melting is by nozzle body 11, from cast gate
5 discharge to complete injection moulding process.In the present embodiment, the resin of melting can enter filled cavity 131 by through hole 133, on the one hand
The expansion so that sealing ring 13 heats up together is conducive to keep the seal of hot flow path body 3 and nozzle assembly 1；On the other hand it is molten
The resin melted has certain pressure, and when the resin of melting enters in filled cavity 131, pressure energy makes sealing ring 13 further swollen
It is swollen, be conducive to keep the seal of hot flow path body 3 and nozzle assembly 1.
When the nozzle assembly 1 of the utility model is applied to hot-runner injection mold device 100, hot flow path body 3 is avoided that
With the friction between nozzle body 11, the problem of so as to reduce leak adhesive；After a period of time, sealing ring can be directly replaced
13, increase the service life of nozzle body 11；By setting through hole 133 and filled cavity 131 on sealing ring 13, can effectively keep
Seal between hot flow path body 3 and nozzle body 11.
In one embodiment, filled cavity 131 is located in sealing ring 13.By the way that filled cavity 131 is set to be located on sealing ring
13 so that the volume maximization of filled cavity 131, when the resin of melting enters in filled cavity 131,13 each several part of sealing ring by
To melting resin pressure evenly.
In another embodiment, nozzle body 11 forms mounting groove 115 close to the recess of mounting surface 117 of sealing ring 13, close
Seal 13 is arranged in mounting groove 115 and protrudes from mounting surface 117.By setting mounting groove 115, sealing ring 13 and nozzle can be increased
Seal between body 11, while increase the stability of the installation of sealing ring 13.
Further, sealing ring 13 protrudes from 117 0.45~0.5 millimeter of mounting surface.Preferably, sealing ring protrudes from peace
117 0.47 millimeters of dress face
Sealing ring 13 is stainless steel sealing ring.Since sealing ring 13 is applied to hot-runner injection mold device 100, hot flow path
The rapidoprint of storage has higher temperature in body 3, and the materials such as ordinary rubber, asbestos are easily deformed or aoxidize seriously, adopt
With the sealing ring of stainless steel, the service life of sealing ring 13 is advantageously ensured that.
The hardness of sealing ring 13 is less than the hardness of nozzle body 11.Since nozzle body 11 needs to be resistant to higher temperature,
Its hardness is generally also higher, and the hardness of sealing ring 13 is less than the hardness of nozzle body 11 so that when rubbing, sealing ring 13
It is more prone to be lost, so as to reduce the abrasion of nozzle body 11, advantageously ensure that between sealing ring 13 and nozzle body 11
Seal.
The utility model additionally provides a kind of hot-runner injection mold device 100.Referring to Fig. 3, it is the utility model heat
One example structure schematic diagram of runner injection molding die device.Hot-runner injection mold device 100 includes cover half 10 and dynamic model 20, fixed
Forming cavity 30 is formed between mould 10 and dynamic model 20, cover half 10 includes hot flow path body 3, cast gate 5 and nozzle assembly 1 as the aforementioned,
Hot flow path cavity 31 is equipped in hot flow path body 3, nozzle assembly 1 is connected between hot flow path body 3 and cast gate 5.
In one embodiment, the opening direction of through hole 133 is towards hot flow path cavity 31.Be conducive to melt in hot flow path cavity 31
The resin melted enters filled cavity 131.
Further, the hardness of sealing ring 13 is less than the hardness of hot flow path body 3.Due to nozzle body 11 need be resistant to compared with
High temperature, hardness is generally also higher, and the hardness of sealing ring 13 is less than the hardness of nozzle body 11 so that rubs
When, sealing ring 13 is more prone to be lost, and so as to reduce the abrasion of nozzle body 11, advantageously ensures that sealing ring 13 and nozzle sheet
Seal between body 11.
In another embodiment, hot-runner injection mold device 100 further includes the needle-valve 7 arranged on hot flow path cavity 31, pin
Valve 7 is used to be turned on and off cast gate 5.When that need not be molded to forming cavity 30,7 closed fluid passages 111 of needle-valve into
Mouth 113.By setting needle-valve 7, it can control whether hot flow path body 3 connects with cast gate 5.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
It is every under the design of the utility model, equivalent structure transformation made based on the specification and figures of the utility model or
Directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of nozzle assembly, which is characterized in that the nozzle assembly is used for hot-runner injection mold device, the nozzle assembly
Run through including nozzle body and sealing ring, in the nozzle body and be equipped with fluid passageway, the import of the fluid passageway be used for
Hot flow path cavity is connected, and the sealing ring is set around the import, and for being arranged on hot flow path body and the nozzle sheet
Between body, filled cavity is equipped in the sealing ring, offer through hole on the inner surface of the sealing ring is connected with the filled cavity
It is logical.
2. nozzle assembly as described in claim 1, which is characterized in that the filled cavity is located in the sealing ring.
3. nozzle assembly as described in claim 1, which is characterized in that the nozzle body is close to the mounting surface of the sealing ring
Recess forms mounting groove, and the sealing ring is arranged in the mounting groove and protrudes from the mounting surface.
4. nozzle assembly as claimed in claim 3, which is characterized in that the sealing ring protrude from the mounting surface 0.45~
0.5 millimeter.
5. nozzle assembly according to any one of claims 1 to 4, which is characterized in that the sealing ring seals for stainless steel
Circle.
6. nozzle assembly as claimed in claim 5, which is characterized in that the hardness of the sealing ring is less than the nozzle body
Hardness.
7. a kind of hot-runner injection mold device, which is characterized in that including fixed half and moving half, between the cover half and the dynamic model
Forming cavity is formed, the cover half includes hot flow path body, cast gate and such as nozzle assembly according to any one of claims 1 to 6,
Be equipped with hot flow path cavity in the hot flow path body, the nozzle assembly be connected to the hot flow path body and the cast gate it
Between.
8. hot-runner injection mold device as claimed in claim 7, which is characterized in that the opening direction of the through hole is towards institute
State hot flow path cavity.
9. hot-runner injection mold device as claimed in claim 7, which is characterized in that the hardness of the sealing ring is less than described
The hardness of hot flow path body.
10. hot-runner injection mold device as claimed in claim 7, which is characterized in that the hot-runner injection mold device
The needle-valve arranged on the hot flow path cavity is further included, the needle-valve is used to be turned on and off the cast gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389497.6U CN207403101U (en) | 2017-10-24 | 2017-10-24 | Nozzle assembly and hot-runner injection mold device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721389497.6U CN207403101U (en) | 2017-10-24 | 2017-10-24 | Nozzle assembly and hot-runner injection mold device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207403101U true CN207403101U (en) | 2018-05-25 |
Family
ID=62407716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721389497.6U Active CN207403101U (en) | 2017-10-24 | 2017-10-24 | Nozzle assembly and hot-runner injection mold device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207403101U (en) |
-
2017
- 2017-10-24 CN CN201721389497.6U patent/CN207403101U/en active Active
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