CN103538208B - Open injection hole type hot runner injection mould device - Google Patents
Open injection hole type hot runner injection mould device Download PDFInfo
- Publication number
- CN103538208B CN103538208B CN201310548418.1A CN201310548418A CN103538208B CN 103538208 B CN103538208 B CN 103538208B CN 201310548418 A CN201310548418 A CN 201310548418A CN 103538208 B CN103538208 B CN 103538208B
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- Prior art keywords
- injection hole
- nozzle
- hot runner
- type hot
- mould device
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- 238000002347 injection Methods 0.000 title claims abstract description 113
- 239000007924 injection Substances 0.000 title claims abstract description 113
- 239000011347 resin Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/278—Nozzle tips
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of open injection hole type hot runner injection mould device, including: dynamic model, cover half, die cavity, injection hole, molten resin path, nozzle and nozzle tip, dynamic model is provided above cover half, dynamic model and cover half are collectively forming die cavity, die cavity is provided above injection hole, is provided with nozzle in cover half, is provided with the molten resin path coaxial with nozzle centre axis in nozzle, nozzle front is provided with nozzle tip, and nozzle tip is connected with injection hole.By the way, it is good that open injection hole type hot runner injection mould device of the present invention has reliability height, compact conformation, adaptability, there is no protuberance and wire drawing phenomenon, Product Precision is high, do not flow trace and weld line, the course of processing is simple, simplifies the advantages such as subsequent technique, has market prospect widely in field of die equipment simultaneously.
Description
Technical field
The present invention relates to injection moulding device field, particularly relate to a kind of open injection hole type hot runner injection mould device.
Background technology
Hot runner plastic injection mould is divided into, according to injection hole kind, what is called " the open injection shape of the mouth as one speaks " injection mold apparatus that injection hole open and close type injection mold apparatus and injection hole open always.Above-mentioned open injection hole formula injection mold apparatus is than injection hole open and close type injection mold apparatus simple in construction, so being used for the molding of small sized product.
As an example of this open injection shape of the mouth as one speaks injection mold apparatus, patent notes is as follows.
[look-ahead technique document]
[patent documentation]
The open injection hole formula injection mold apparatus described in patent documentation 1 is remembered as shown in Figures 1 and 2 on (patent documentation 1) KR10-2010-0120794 A, possessing the die cavity (103) formed between cover half (101) and dynamic model (102), the inner insertion of upper note cover half (101) is provided with the nozzle (105) having molten resin path (105a).And the leading section of nozzle (105), the i.e. terminal part of nozzle tip (106) is inserted into the front end face of injection hole (104), therefore defines the molten resin inlet of uniform gap (G) between outer peripheral face as shown in Figure 2 and injection hole (104) inwall.After high-temperature fusion resin is by the molten resin path (105a) of nozzle (105) and the molten resin path (106a) of nozzle tip (106), is injected by the molten resin inlet formed between above-mentioned injection hole (104) inwall and nozzle tip (106) outer peripheral face and be filled in die cavity (103).
The front end (106b) of the nozzle tip (106) of common open injection hole formula injection mold apparatus as implied above and injection hole front end face (104a is equivalent to the die joint of mould) are that substantive arrangement is consistent.Utilize and possess the hot-runner injection mold device of this nozzle tip structure and carry out during injection mo(u)lding injection-molded article (110) as shown in Figure 3, according to the difference of the viscosity of molten resin near injection hole (104) Yu setting rate, forming injection hole protuberance (111) as shown in Figure 3 or occur not have the molten resin solidified to be formed about the what is called of narrow line shape ' wire drawing ' (112) phenomenon at injection hole.
This injection-molded article is in order to need injection hole protuberance (111) that exterior surface protrudes and ' wire drawing ' (112) with other assembling products.The removal job demand manual operations one by one of injection hole protuberance (111) completes.Cause that the working time is elongated and the problem such as expense increase.And the careless words of operator can produce defective products when removing injection hole protuberance (111).
Summary of the invention
The problem that the present invention is to solve above-mentioned common open injection hole formula injection mold apparatus, utilize the nozzle tip of back-off structure, during the injection-molded article that during mould die sinking (type is opened), the injection hole of removal injection-molded article takes out from mould after injection mo(u)lding, do not have protuberance or wire drawing phenomenon to occur；Slotting portion and injection hole are provided with gap, and slotting portion is provided with less neck, improves Resin Flow, prevent the resin bad manufacture substandard products of flowing；It is provided with divergent contour spigot surface, prevents resin surface conflict.Having reliability height, compact conformation, adaptability good, do not have protuberance and wire drawing phenomenon, Product Precision is high, and do not flow trace and weld line, and the course of processing is simple, simplifies the advantages such as subsequent technique, has market prospect widely in field of die equipment simultaneously.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of open injection hole type hot runner injection mould device, including: dynamic model, cover half, die cavity, injection hole, molten resin path, nozzle and nozzle tip, dynamic model is provided above cover half, dynamic model and cover half are collectively forming die cavity, die cavity is provided above injection hole, nozzle it is provided with in cover half, the molten resin path coaxial with nozzle centre axis it is provided with in nozzle, nozzle front is provided with nozzle tip, nozzle tip is connected with injection hole, the maximum outside diameter of said nozzle point is less than the minimum diameter of injection hole, and nozzle tip insertion die cavity certain depth.
In a preferred embodiment of the present invention, described nozzle tip front end is provided with neck and slotting portion, and slotting portion is arranged on below neck, and the spacing between the inwall of described slotting portion and injection hole minimum diameter is 0.1-0.5mm.
In a preferred embodiment of the present invention, the external diameter of described neck is less than the external diameter in slotting portion.
In a preferred embodiment of the present invention, described slotting portion possesses the downward conical outer peripheral face that above-mentioned injection hole tapers into die cavity inside diameter.
In a preferred embodiment of the present invention, the conical outer peripheral face in described slotting portion is provided with multiple groove and the most equidistantly arranges.
In a preferred embodiment of the present invention, described slotting portion is arranging the spigot surface of oriented horizontal direction diffusion orient near injection hole.
In a preferred embodiment of the present invention, it is the 5.0% of depth of cavity that described slotting portion inserts depth of cavity.
In a preferred embodiment of the present invention, described nozzle tip makes with hard alloy material sinter molding or heat-resisting alloy steel machining.
The invention has the beneficial effects as follows: open injection hole type hot runner injection mould device of the present invention, utilize the nozzle tip of back-off structure, during the injection-molded article that during mould die sinking (type is opened), the injection hole of removal injection-molded article takes out from mould after injection mo(u)lding, do not have protuberance or wire drawing phenomenon to occur；Slotting portion and injection hole are provided with gap, and slotting portion is provided with less neck, improves Resin Flow, prevent the resin bad manufacture substandard products of flowing；It is provided with divergent contour spigot surface, prevents resin surface conflict.Having reliability height, compact conformation, adaptability good, do not have protuberance and wire drawing phenomenon, Product Precision is high, and do not flow trace and weld line, and the course of processing is simple, simplifies the advantages such as subsequent technique, has market prospect widely in field of die equipment simultaneously.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the assembling sectional view of general open injection hole formula injection mold apparatus；
Fig. 2 is that figure in detail is amplified in the A portion of Fig. 1；
Fig. 3 is an example of the injection-molded article of the general open injection hole formula injection mold apparatus molding of Fig. 1；
Fig. 4 is according to the present invention, possesses the assembling sectional view of the open injection shape of the mouth as one speaks hot-runner injection mold device of the nozzle tip having back-off structure；
Fig. 5 a to Fig. 5 c is that in Fig. 4, the amplification of B is schemed in detail, the view that the slotting portion of nozzle tip is illustrated the process of injection oral area slotting by the stage；
Fig. 5 a is that molten resin is injected into the schematic diagram of die cavity internal state by injection hole,
Fig. 5 b be molten resin be filled into die cavity and after molding, when the dynamic model of the downside cover half from upside separates and forms die opening state, the view of back-off portion slotting injection oral area；
Fig. 5 c is to be molded oral area in figure 5b by the magnified partial view of the injection-molded article of slotting；
Fig. 6 is the view of the additional embodiment of the present invention, is corresponding diagram 5a view；
In accompanying drawing, the labelling of each parts is as follows: 10, cover half, and 11, dynamic film, 12, injection hole, 13, die cavity, 20, nozzle, 21, molten resin path, 22, nozzle tip, 30, slotting portion, 31, cervical region, 32, spigot surface, 38, cone outer peripheral face, 39, groove, 40, products formed, 41, back-off.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 4-6, the embodiment of the present invention includes:
A kind of open injection hole type hot runner injection mould device, including: dynamic model 11, cover half 10, die cavity 13, injection hole 12, molten resin path 21, nozzle 20 and nozzle tip 25, dynamic model 11 is provided above cover half 10, dynamic model 11 and cover half 10 are collectively forming die cavity 13, die cavity 13 is provided above injection hole 12, nozzle 20 it is provided with in cover half 10, the molten resin path 21 coaxial with nozzle centre axis it is provided with in nozzle 20, nozzle 20 front is provided with nozzle tip 25, nozzle tip 25 is connected with injection hole 12, the maximum outside diameter (Do1) of said nozzle point is less than the minimum diameter of injection hole (Di0), and nozzle tip 25 inserts die cavity 13 certain depth.
Described nozzle tip 25 front end is provided with neck 31 and slotting portion 30, and slotting portion 30 is arranged on below neck 31, and the spacing between the inwall of described slotting portion 30 and injection hole 12 minimum diameter is 0.1-0.5mm, it is ensured that the mobility of resin during injection.
The external diameter of described neck 31 is less than the external diameter in slotting portion 30, it is ensured that the mobility of resin during injection, is possible to prevent the flow formed product of bad generation of resin bad during the high material of injection mo(u)lding viscosity.
Described slotting portion possesses the downward conical outer peripheral face that above-mentioned injection hole tapers into die cavity inside diameter, makes molten resin more smoothly flow in die cavity.
The conical outer peripheral face in described slotting portion is provided with multiple groove and the most equidistantly arranges, and increases molten resin injection rate in die cavity, and molten resin therefore can be allowed more to smoothly flow in die cavity.
Described slotting portion is arranging the spigot surface of oriented horizontal direction diffusion orient near injection hole, prevents resin surface conflict from causing flow cracks and weld line.
It is the 5.0% of depth of cavity that described slotting portion inserts depth of cavity, and while making the injection hole protuberance of removal shaped article, the size in slotting portion minimizes.
Described nozzle tip makes with hard alloy material sinter molding or heat-resisting alloy steel machining, can obtain preferable using effect, it is ensured that life of product and injection-molded finished quality.
Open injection hole type hot runner injection mould device of the present invention provides the benefit that:
One, utilize the nozzle tip of back-off structure, during the injection-molded article that during mould die sinking (type is opened), the injection hole of removal injection-molded article takes out from mould after injection mo(u)lding, do not have protuberance or wire drawing phenomenon to occur；
Two, slotting portion and injection hole are provided with gap, and slotting portion is provided with less neck, improves Resin Flow, prevent the resin bad manufacture substandard products of flowing；
Three, it is provided with divergent contour spigot surface, prevents resin surface conflict；
Four, compared with existing equipment, it is good that the present invention has reliability height, compact conformation, adaptability, there is no protuberance and wire drawing phenomenon, Product Precision is high, do not flow trace and weld line, the course of processing is simple, simplifies the advantages such as subsequent technique, has market prospect widely in field of die equipment simultaneously.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (8)
1. an open injection hole type hot runner injection mould device, it is characterized in that, including: dynamic model, cover half, die cavity, injection hole, molten resin path, nozzle and nozzle tip, dynamic model is provided above cover half, dynamic model and cover half are collectively forming die cavity, die cavity is provided above injection hole, nozzle it is provided with in cover half, the molten resin path coaxial with nozzle centre axis it is provided with in nozzle, nozzle front is provided with nozzle tip, nozzle tip is connected with injection hole, the maximum outside diameter of said nozzle point is less than the minimum diameter of injection hole, and nozzle tip insertion die cavity certain depth, described nozzle tip front end is provided with neck and slotting portion, slotting portion is arranged on below neck.
Open injection hole type hot runner injection mould device the most according to claim 1, it is characterised in that the spacing between the inwall of described slotting portion and injection hole minimum diameter is 0.1-0.5mm.
Open injection hole type hot runner injection mould device the most according to claim 2, it is characterised in that the external diameter of described neck is less than the external diameter in slotting portion.
Open injection hole type hot runner injection mould device the most according to claim 2, it is characterised in that described slotting portion possesses the conical outer peripheral face that direction is downward, on the direction inside injection hole to die cavity, the diameter of described cone outer peripheral face tapers into.
Open injection hole type hot runner injection mould device the most according to claim 4, it is characterised in that the conical outer peripheral face in described slotting portion is provided with multiple groove and the most equidistantly arranges.
Open injection hole type hot runner injection mould device the most according to claim 3, it is characterised in that described slotting portion is arranging the spigot surface of oriented horizontal direction diffusion orient near injection hole.
Open injection hole type hot runner injection mould device the most according to claim 1, it is characterised in that it is the 5.0% of depth of cavity that described slotting portion inserts depth of cavity.
Open injection hole type hot runner injection mould device the most according to claim 2, it is characterised in that described nozzle tip makes with hard alloy material sinter molding or heat-resisting alloy steel machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548418.1A CN103538208B (en) | 2013-11-08 | 2013-11-08 | Open injection hole type hot runner injection mould device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548418.1A CN103538208B (en) | 2013-11-08 | 2013-11-08 | Open injection hole type hot runner injection mould device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103538208A CN103538208A (en) | 2014-01-29 |
| CN103538208B true CN103538208B (en) | 2016-08-17 |
Family
ID=49962246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310548418.1A Active CN103538208B (en) | 2013-11-08 | 2013-11-08 | Open injection hole type hot runner injection mould device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103538208B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7099119B2 (en) * | 2018-07-20 | 2022-07-12 | セイコーエプソン株式会社 | Injection molding equipment and injection molding method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145831A1 (en) * | 1981-11-16 | 1983-05-26 | Schleicher Gmbh & Co Relais-Werke Kg, 1000 Berlin | Injection-moulding machine serving for the production of technical mouldings in particular |
| JPH0720642B2 (en) * | 1988-07-22 | 1995-03-08 | 松下電工株式会社 | Hot runner nozzle for injection molding |
| US5501594A (en) * | 1994-02-16 | 1996-03-26 | Eastman Kodak Company | Apparatus for forming a thermoplastic body |
| US5545028A (en) * | 1994-08-16 | 1996-08-13 | Kona Corporation | Bushing tip for injection molding apparatus |
| CA2410538A1 (en) * | 2000-06-16 | 2001-12-27 | Frank J. Eigler | Injection molding hot runner nozzle with removable seal |
| US7435078B2 (en) * | 2006-11-30 | 2008-10-14 | Husky Injection Molding Systems Ltd. | Nozzle sleeve for an injection molding apparatus |
| CN203527795U (en) * | 2013-11-08 | 2014-04-09 | 哈希斯热流道科技（苏州）有限公司 | Hot runner injection molding mold device with opened injection molding hole |
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2013
- 2013-11-08 CN CN201310548418.1A patent/CN103538208B/en active Active
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| Publication number | Publication date |
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| CN103538208A (en) | 2014-01-29 |
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