CN209126105U - A kind of extension hot mouth structure for narrow type chamber injection mold - Google Patents
A kind of extension hot mouth structure for narrow type chamber injection mold Download PDFInfo
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- CN209126105U CN209126105U CN201821651716.8U CN201821651716U CN209126105U CN 209126105 U CN209126105 U CN 209126105U CN 201821651716 U CN201821651716 U CN 201821651716U CN 209126105 U CN209126105 U CN 209126105U
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- mold
- mold insert
- hot mouth
- tongued
- hot
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Abstract
The utility model discloses a kind of extension hot mouth structures for narrow type chamber injection mold, including movable model chamber mold insert and the cooling mold insert of cover half, screw thread rotation, which is equipped with, in the cooling mold insert of the cover half demoulds mold insert, the screw thread rotation demoulding mold insert is equipped with the heat-insulated ring set of hot mouth and bushing, fixed mold mold insert is provided between the heat-insulated ring set of hot mouth and screw thread rotation demoulding mold insert, the fixed mold mold insert is equipped with ejector spring, hot nozzle main body is equipped in the fixed mold mold insert, the hot nozzle main body is equipped with through-type sharp-tongued.It solves the problems, such as not enough to place hot nozzle because of plastic cavity space in the utility model；The defect because being easy to wire drawing when inside pouring gate structure protrusion causes to freeze is avoided that during production plastic products；Simultaneously because melt flows are smooth, enough pressure maintaining feeding are obtained type is intracavitary when product is cooling, the surface quality and finish of formed product are more preferably conducive to client and shorten design, processing and production cycle, increase economic efficiency.
Description
Technical field
The utility model relates to injection mold hot runner systems technology fields, specially a kind of to be used for narrow impression injection mold
The extension hot mouth structure of tool.
Background technique
Hot runner plastic injection mould can be shortened product molding cycle, save plastic raw materials, improve product quality, be readily produced certainly
Dynamicization, so increasingly extensive in injection molding application.But for many packaging based articles and for example various bottle caps of other small parts,
The multi-cavity hot runner mould of such product is in structure and technical is very limited.
This kind of production of articles is of large quantities, the market demand is big, and production requirement plastic shaping is good, description of materials application is wide, more
The plastics (such as PE, PP, PS, ABS, SAN) of, good fluidity wide using melt temperature scope, middle low viscosity, processing and forming temperature
It generally 200~260 DEG C of degree, is very suitable to produce using multi-cavity hot runner mould, and cost can be reduced and shorten product week
Phase.But the raising with client to product quality and esthetic requirement, bottle cap front do not allow to leave gate vestiges, it is desirable that into cast gate
The inside of narrow die cavity is set, is increased not only for the volume and built-in heating element of the hot nozzle element of hot runner system
Difficulty, and because being easy to wire drawing when cooling condensation demoulding at cast gate, and cavity layout will realize compact and reasonable, solve thermal jet
Mouth is small in size and type chamber arranges close problem, also needs the plastics temperature and flow equilibrium that accurately control multi-cavity hot mouth, these are difficult
Point proposes new challenge to the design and application of hot runner system.
Utility model content
For above-mentioned technical deficiency, the purpose of the utility model is to provide one kind to be used for narrow type chamber injection mold
Extension hot mouth structure, solve because type chamber it is narrow need to the injection mold application hot runner system on the inside of the product into glue easily cause
Following problem: when solving product stripping, the material melts flowing and cooling condensation of hot nozzle and interior side gate are easy to wire drawing
Problem；Meet narrow injection mold cavity to small size nozzle requirement；Meet because article construction and the high speed and high pressure of efficient volume production are molded
Technique requirement；Improve the precision and surface quality of molding plastic.
In order to solve the above technical problems, the utility model adopts the following technical solution:
The utility model provides a kind of extension hot mouth structure for narrow type chamber injection mold, including movable model chamber edge
Part and the cooling mold insert of cover half, the interior screw thread rotation that is equipped with of the cooling mold insert of the cover half demould mold insert, and the screw thread rotation demoulds mold insert
It is interior to be equipped with the heat-insulated ring set of hot mouth, bushing, the heat-insulated ring set of hot mouth and the spiral shell are nested on the screw thread rotation demoulding mold insert
Fixed mold mold insert is provided between line rotating stripping demoulding mold insert, the fixed mold mold insert extends to the movable model chamber mold insert
Interior, the center position of the bottom of the fixed mold mold insert offers cast gate, is nested with demoulding on the fixed mold mold insert
Spring is provided with hot nozzle main body in the fixed mold mold insert, be provided in the hot nozzle main body lengthen extend it is straight-through
Type is sharp-tongued, the hot nozzle main body and the through-type sharp-tongued inner passage connection sealed to each other, described through-type sharp-tongued to prolong
It extends at the cast gate, offers several annular grooves in the heat-insulated ring set of hot mouth, close to a through-type sharp-tongued institute
It states and is provided with hot mouth sealing ring in annular groove.
Preferably, it is described it is through-type it is sharp-tongued between the heat-insulated ring set of the hot mouth, the heat-insulated ring set of the hot mouth with it is described fixed
It is reserved with gap digit between model core mold insert, which is less than 0.02mm.
Preferably, the through-type sharp-tongued temperature is controlled by mold heating system, the mold heating system packet
Heater and temperature controller are included, offers the cooling annular of mold on the movable model chamber mold insert and the cooling mold insert of the cover half
Sink.
Preferably, coolant seal is provided at the cooling annular water tank of the mold.
Preferably, the through-type sharp-tongued material is beryllium copper.
The utility model has the beneficial effects that:
(1) such extension thermal jet mouth structure for narrow type cavity mould, solves because plastic cavity space is not enough pacified
The problem of heat release nozzle, enables the ordinary injection die of this based article to form using Hot runner Technology.
(2) it is avoided that during production plastic products because being easy to lacking for wire drawing when inside pouring gate structure protrusion causes to freeze
It falls into.
(3) injection mold for using extension thermal jet mouth structure, it is intracavitary in type when product is cooling because melt flows are smooth
To enough pressure maintaining feeding, the surface quality and finish of formed product are more preferable.
(4) injection mold for using extension thermal jet mouth structure adapts to high speed and high pressure production in Shooting Technique, and can
To meet the requirement of this big rapid shaping of based article yield.
(5) hot nozzle main body, the heat-insulated ring set of hot mouth etc. can be prefabricated into standard component by this extension hot nozzle, according to specific etc.
Customer requirement is selected or improvement, is conducive to client and shortens design, processing and production cycle, increases economic efficiency.
Detailed description of the invention
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, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of extension hot mouth structure for narrow type chamber injection mold provided by the embodiment of the utility model
Structural schematic diagram；
Fig. 2 is the Local map of Fig. 1.
Description of symbols:
The cooling mold insert of 1- coolant seal, 2- movable model chamber mold insert, 3- plastic bottle closure product, 4- cover half, 5- demould bullet
Spring, the heat-insulated ring set of 6- hot mouth, 7- fixed mold mold insert, 8- hot nozzle main body, 9- hot mouth sealing ring, the through-type sharp-tongued, 11- of 10-
The cooling annular water tank of heat-radiating ring-groove, 12- cast gate, 13- mold, 14- screw thread rotation demould mold insert, 15- bushing.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1 to Figure 2, a kind of extension hot mouth structure for narrow type chamber injection mold, including movable model chamber
Mold insert 2 and the cooling mold insert 4 of cover half, the interior screw thread rotation that is equipped with of the cooling mold insert 4 of the cover half demould mold insert 14, and the screw thread rotation is de-
It is equipped with the heat-insulated ring set 6 of hot mouth in mould mold insert 14, is nested with bushing 15 on the screw thread rotation demoulding mold insert 14, the hot mouth is heat-insulated
It is provided with fixed mold mold insert 7 between ring set 6 and screw thread rotation demoulding mold insert 14, the fixed mold mold insert 7 extends to
In the movable model chamber mold insert 2, the center position of the bottom of the fixed mold mold insert 7 offers cast gate 12, the cover half
It is nested with ejector spring 5 on type core mold insert 7, hot nozzle main body 8, the hot nozzle master are provided in the fixed mold mold insert 7
Through-type sharp-tongued 10 for lengthening and extending, the hot nozzle main body 8 and through-type sharp-tongued 10 inner passage are provided on body 8
Connection sealed to each other, described through-type sharp-tongued 10 extend at the cast gate 12, offer in the heat-insulated ring set 6 of hot mouth several
A annular groove 11 is provided with hot mouth sealing ring 9 in described through-type sharp-tongued 10 annular groove 11.
Further, between described through-type sharp-tongued 10 and the heat-insulated ring set 6 of the hot mouth, the heat-insulated ring set 6 of the hot mouth with
It is reserved with gap digit between the fixed mold mold insert 7, which is less than 0.02mm；The setting in the gap avoids injection molding
When melt plastic cement reveal, after hot nozzle main body 8 and through-type sharp-tongued 10 are warming up to operating temperature, to prevent through-type sharp-tongued 10
Melt glue from junction reveal, by Precision Machining guarantee slight clearance, reach sealing using through-type sharp-tongued 10 thermal expansion
Effect.
Further, through-type sharp-tongued 10 temperature is controlled by mold heating system, mold heating system
System includes heater and temperature controller, and it is cold to offer mold on the movable model chamber mold insert 2 and the cooling mold insert 4 of the cover half
But annular water tank 13；The cooling system of mold mainly in the cooling mold insert 4 of cover half and determines the cooling annular of mold that model cavity 2 opens up
Sink 13 is cooled down, and cast gate 12 is that plastics are infused into the entrance for determining model cavity 2, and cast gate 12 position needs to control the plastics of melting
It can be opened in injection molding, freeze to close after injection molding, so 12 temperature of cast gate reduces the cooling that rely on water.And it is through-type sharp-tongued
10 will keep melting temperature hot in flow channel that heating system is needed to provide heat, and heating system is set outside hot mouth main body 8
Set heater and temperature controller, through-type sharp-tongued 10 temperature control is controlled by the heat transfer of hot mouth main body 8.
Further, it is provided with coolant seal 1 at the cooling annular water tank 13 of the mold, because determining 2 He of model cavity
It is (cold herein that the cooling annular water tank 13 of mold that the cooling mold insert 4 of cover half opens up needs water source and part outside to carry out cooling
But mode is the prior art, and the application does not do excessive description), therefore the effect of coolant seal 1 is to seal up water route
The gap of union piece two-by-two (as shown in Figure 1, sealing that coolant seal 1 realizes the cooling annular water tank 13 of mold) passed through,
Prevent cooling aqueous from gap leakage.
Further, through-type sharp-tongued 10 material is beryllium copper, common die because on the inside of product requirement product into glue,
It is easy to cause type chamber narrow and fails to lay down the common hot mouth because of processing dimension limitation, and be easy to wire drawing when product is cooling, adopts
Through-type sharp-tongued 10 heat conductive that extension is lengthened made of beryllium copper can be excellent, because being designed using straight-through type flow passage, is easy to
Melting material flowing, may be implemented melt heat preservation and cavity space deficiency places the technical problem of hot nozzle, press compared with common die
Power loss falls sharply, and is suitable for high-voltage high-speed injection molding process.
In use, hot nozzle main body 8 and through-type sharp-tongued 10 passes through the modeling that the method heated guarantees inner flow passage and cast gate 12
Material is kept molten by and (is heated using heater), and when production, plastics are by flow channel into glue to movable model chamber edge
The inner cavity of part 2 opens mold after plastic products cooling and shaping in type chamber and releases plastic bottle closure product 3, and plastic bottle closure product 3 wraps
Tightly on fixed mold mold insert 7, screw thread rotation demoulding mold insert 14 (is not drawn into figure, is belonged to herein by external power drive
The prior art can be motor or other actuating units) by plastic bottle closure product 3 from rotating stripping demoulding on fixed mold mold insert 7,
Bushing 15 is used to provide support and reduces the abrasion that screw thread rotation demoulding mold insert 14 rotates, each compared to common cold runner die
It is not required to open runner taking-up condensate when die sinking, as shown in Figure 1, hot nozzle main body 8 and through-type sharp-tongued 10 inner passage are mutual
It is tightly connected, hole path is led directly to using melt, reduce the flow resistance that melt enters type chamber, while through-type sharp-tongued in order to guarantee
10 temperature control, avoid heater loss need to reduce because contact surface excessively caused by heat leakage, therefore in positioning support hot mouth master
A few heat-radiating ring-grooves 11 are designed on the heat-insulated ring set 6 of the hot mouth of body 8.
The utility model solves the problems, such as not enough to place hot nozzle because of plastic cavity space, makes the common note of this based article
Mould can be formed using Hot runner Technology；It is avoided that during production plastic products because inside pouring gate structure protrusion causes to freeze
When be easy to the defect of wire drawing；Simultaneously because melt flows are smooth, enough pressure maintaining feeding, product are obtained type is intracavitary when product is cooling
Molding surface quality and finish are more preferable；High speed and high pressure production is adapted in Shooting Technique, and can satisfy this based article
The requirement of the big rapid shaping of yield, while hot nozzle main body, the heat-insulated ring set of hot mouth etc. can be prefabricated into standard component, according to specific etc.
Customer requirement is selected or improvement, is conducive to client and shortens design, processing and production cycle, increases economic efficiency.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (5)
1. a kind of extension hot mouth structure for narrow type chamber injection mold, including movable model chamber mold insert (2) and cover half cooling
Mold insert (4), the cover half cooling mold insert (4) is interior to be equipped with screw thread rotation demoulding mold insert (14), and the screw thread rotation demoulds mold insert
(14) it is equipped with the heat-insulated ring set of hot mouth (6) in, is nested with bushing (15) on screw thread rotation demoulding mold insert (14), feature exists
In the heat-insulated ring set of hot mouth (6) and the screw thread rotation demould and be provided with fixed mold mold insert (7), institute between mold insert (14)
It states fixed mold mold insert (7) to extend in the movable model chamber mold insert (2), the center of the bottom of the fixed mold mold insert (7)
It offers cast gate (12), is nested with ejector spring (5) on the fixed mold mold insert (7), the fixed mold mold insert at position
(7) it is provided with hot nozzle main body (8) in, through-type sharp-tongued (10) for lengthening and extending, institute is provided on the hot nozzle main body (8)
The inner passage connection sealed to each other of hot nozzle main body (8) Yu through-type sharp-tongued (10) is stated, it is described through-type sharp-tongued (10)
It extends at the cast gate (12), offers several heat-radiating ring-grooves (11) in the heat-insulated ring set of hot mouth (6), close to described straight
Hot mouth sealing ring (9) are provided in the heat-radiating ring-groove (11) of one of flow-through sharp-tongued (10).
2. a kind of extension hot mouth structure for narrow type chamber injection mold as described in claim 1, which is characterized in that institute
It states between through-type sharp-tongued (10) and the heat-insulated ring set of the hot mouth (6), the heat-insulated ring set of the hot mouth (6) and the fixed mold are inlayed
Part is reserved with gap digit between (7), which is less than 0.02mm.
3. a kind of extension hot mouth structure for narrow type chamber injection mold as described in claim 1, which is characterized in that institute
The temperature for stating through-type sharp-tongued (10) is controlled by mold heating system, and the mold heating system includes heater and temperature
The cooling annular water tank of mold is offered on controller, the movable model chamber mold insert (2) and the cover half cooling mold insert (4)
(13)。
4. a kind of extension hot mouth structure for narrow type chamber injection mold as described in claim 1, which is characterized in that institute
It states and is provided with coolant seal (1) at mold cooling annular water tank (13).
5. a kind of extension hot mouth structure for narrow type chamber injection mold as described in claim 1, which is characterized in that institute
The material for stating through-type sharp-tongued (10) is beryllium copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821651716.8U CN209126105U (en) | 2018-10-11 | 2018-10-11 | A kind of extension hot mouth structure for narrow type chamber injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821651716.8U CN209126105U (en) | 2018-10-11 | 2018-10-11 | A kind of extension hot mouth structure for narrow type chamber injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209126105U true CN209126105U (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821651716.8U Expired - Fee Related CN209126105U (en) | 2018-10-11 | 2018-10-11 | A kind of extension hot mouth structure for narrow type chamber injection mold |
Country Status (1)
| Country | Link |
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| CN (1) | CN209126105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973035A (en) * | 2018-10-11 | 2018-12-11 | 广西机电职业技术学院 | A kind of extension hot mouth structure for narrow type chamber injection mold |
-
2018
- 2018-10-11 CN CN201821651716.8U patent/CN209126105U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973035A (en) * | 2018-10-11 | 2018-12-11 | 广西机电职业技术学院 | A kind of extension hot mouth structure for narrow type chamber injection mold |
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Legal Events
| 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: 20190719 Termination date: 20201011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |