CN110435089A - Injecting mechanism and hot runner system - Google Patents
Injecting mechanism and hot runner system Download PDFInfo
- Publication number
- CN110435089A CN110435089A CN201910836456.4A CN201910836456A CN110435089A CN 110435089 A CN110435089 A CN 110435089A CN 201910836456 A CN201910836456 A CN 201910836456A CN 110435089 A CN110435089 A CN 110435089A
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- China
- Prior art keywords
- runner
- needle
- upper layer
- gum outlet
- access
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 239000003292 glue Substances 0.000 claims abstract description 41
- 229920003023 plastic Polymers 0.000 claims abstract description 37
- 239000004033 plastic Substances 0.000 claims abstract description 37
- 239000004568 cement Substances 0.000 claims abstract description 30
- 230000006978 adaptation Effects 0.000 claims 1
- 230000006872 improvement Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010028347 Muscle twitching Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2703—Means for controlling the runner flow, e.g. runner switches, adjustable runners or gates
-
- 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
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Present invention discloses a kind of injecting mechanism and hot runner system, the injecting mechanism includes the needle longitudinally extended, drive the needle can the driving device that moves back and forth of extending direction longitudinally, and the flow distribution plate equipped with runner, wherein, the flow distribution plate is equipped with the glue inlet for injecting plastic cement, for flowing out the first gum outlet of plastic cement and the upper layer runner for being connected to the glue inlet and the first gum outlet, the needle is with the part upper layer runner traversed by and the needle is far from first gum outlet, when the needle is along the longitudinal line of movement, the upper layer runner is adjusted enters glue sectional area.The invention enables needles to be unlikely to deform, stable structure is reliable, and control when a needle realizes the difference of different runners, applicability are wider.
Description
Technical field
The present invention relates to hot runner mould field more particularly to a kind of injecting mechanism and hot runner system.
Background technique
It is at present that hot runner plastic injection mould passes through for common die in the injection mold that Injection Industry generallys use
The plastic cement products quality of hot runner system injection molding is higher, and hot runner system has saving raw material, improves production efficiency, automation
The advantages that degree is high.
As the Chinese patent CN206568477U of Granted publication on October 20th, 2017 discloses a kind of needle valve type hot runner
Mold and needle component, hot runner mould include die ontology, and the hot flow path being formed in die ontology, further include needle-valve
Component and hot mouth are also formed with multiple valve chambers that part is connected to hot flow path in die ontology；Power unit passes through valve pin plate band
It moves multiple needles and does the linear reciprocating motion along needle axial direction, each valve chamber is equipped with hot mouth at the surface of die ontology, often
A needle is equipped in one valve chamber, all needles of control valve needle assemblies are fixed on one piece of valve pin plate, are driven by power unit,
Realize the synchronization action of each needle, the end of each hot mouth is equipped with cast gate.The reciprocating motion of needle is to open or close phase
Corresponding cast gate makes hot flow path be connected to and be isolated with corresponding hot mouth, that is to say, that needle is by closing or opening hot mouth end
Cast gate stops injecting glue or progress injecting glue, this kind of structure to realize, needle needs are made very long, to extend to cast gate always, make
It obtains needle to be easily deformed, therefore structure is very unreliable, and closing or opening for all cast gates all controls simultaneously, it can not
Realize control when different cast gates are respectively different.
Summary of the invention
The purpose of the present invention is to provide a kind of injecting mechanism and hot runner system, so that needle is unlikely to deform, structure is steady
Calmly reliably, control when and a needle realizes the difference of different runners, applicability are wider.
One of for achieving the above object, an embodiment of the present invention provides a kind of injecting mechanism, the injecting mechanism
Including longitudinally extend needle, the driving needle can the driving device that moves back and forth of extending direction longitudinally and
Flow distribution plate equipped with runner, wherein
The flow distribution plate be equipped with glue inlet for injecting plastic cement, for flow out the first gum outlet of plastic cement be connected to institute
The upper layer runner of glue inlet and the first gum outlet, the needle and the part upper layer runner traversed by and the needle are stated far from institute
The first gum outlet is stated, when the needle is along the longitudinal line of movement, the upper layer runner is adjusted enters glue sectional area.
As the further improvement of an embodiment of the present invention, the upper layer runner includes first with the needle traversed by
Section upper layer runner and the second segment upper layer runner being mutually directly connected to first gum outlet, first segment upper layer runner and institute
It states glue inlet to be connected, first segment upper layer runner is connected with second segment upper layer runner.
As the further improvement of an embodiment of the present invention, the longitudinal axis extending direction and the first segment of the needle
The extending direction of upper layer runner is perpendicular, and the diameter of the needle is less than the diameter of first segment upper layer runner.
As the further improvement of an embodiment of the present invention, first segment upper layer runner and second segment upper layer runner phase
It is directly connected to, and first segment upper layer runner and second segment upper layer runner are perpendicular.
As the further improvement of an embodiment of the present invention, be additionally provided on the flow distribution plate for flow out plastic cement and with institute
It states described in spaced second gum outlet of the first gum outlet, the lower layer's runner being connected with second gum outlet and connection
The access of upper layer runner and lower layer's runner, lower layer's runner include the first segment lower layer runner being connected with the access, with
The second segment lower layer runner that second gum outlet is mutually directly connected to, first segment lower layer runner and second segment lower layer runner phase
Connection, the needle can the extending direction in the access along the longitudinal axis move.
As the further improvement of an embodiment of the present invention, the diameter of the needle and the diameter of the access are mutually fitted
Match, when the needle is moved along the extending direction of the longitudinal axis, the needle drivingly can be moved longitudinally, so that institute
State needle between the access on the extending direction of the longitudinal axis at a distance from increase or reduce, and work as the part needle
When in the access, the needle closes lower layer's runner.
As the further improvement of an embodiment of the present invention, be additionally provided on the flow distribution plate for flow out plastic cement and with institute
It states described in spaced second gum outlet of the first gum outlet, the lower layer's runner being connected with second gum outlet and connection
The access of upper layer runner and lower layer's runner, the diameter of the needle are adapted with the diameter of the access, and the needle is described in
When the extending direction movement of longitudinal axis, the needle drivingly can be moved longitudinally, so that the needle and the access
Between distance on the extending direction of the longitudinal axis increase or reduce, and when the part needle is located in the access
When, the needle closes lower layer's runner.
As the further improvement of an embodiment of the present invention, the driving device includes shell and is disposed in the housing
Driving structure, the driving structure selectively drives needle extending direction longitudinally to move back and forth, the shell
Body is mutually fixedly connected with the flow distribution plate.
One of for achieving the above object, an embodiment of the present invention also provides a kind of hot runner system, the hot-fluid
Road system includes injecting mechanism and the first hot mouth component positioned at the lower section of the injecting mechanism, and the injecting mechanism includes along vertical
Needle that axis extends, the driving needle driving device that moves back and forth of extending direction longitudinally and can be equipped with runner
Flow distribution plate, wherein
The first hot mouth runner that the first hot mouth component definition is connected with the runner and with first hot mouth
Runner is connected and is used for the first cast gate of injecting glue, and the flow distribution plate is equipped with for injecting the glue inlet of plastic cement, for flowing out
The upper layer runner of first gum outlet of plastic cement and the connection glue inlet and the first gum outlet, first gum outlet with it is described
First hot mouth runner is connected, and the needle and the part upper layer runner traversed by and the needle are far from first gum outlet
With the first cast gate, when the needle is along the longitudinal line of movement, the upper layer runner is adjusted enters glue sectional area.
As the further improvement of an embodiment of the present invention, be additionally provided on the flow distribution plate for flow out plastic cement and with institute
It states described in spaced second gum outlet of the first gum outlet, the lower layer's runner being connected with second gum outlet and connection
The access of upper layer runner and lower layer's runner, the hot runner system further include the second hot mouth component, and the second hot mouth component is fixed
The second hot mouth runner that justice is connected with lower layer's runner and it is connected with the second hot mouth runner and for injecting glue
Second cast gate, the diameter of the needle are adapted with the diameter of the access, extending direction of the needle along the longitudinal axis
When movement, the needle between the access on the extending direction of the longitudinal axis at a distance from increase or reduce, with increase
Or reduce the plastic cement flow of second gum outlet, when the needle and the access are matched, lower layer's runner is closed
It closes.
Compared with prior art, the beneficial effects of the present invention are: since the needle and part the upper layer runner are horizontal
It hands over and the needle is far from first gum outlet, it is in this way when the needle is along the longitudinal line of movement, i.e., adjustable described
Upper layer runner enters glue sectional area to adjust the flow adhesive out of the first gum outlet.Therefore, pass through the traversed by of needle and upper layer runner
Relationship just can control the flow of the first gum outlet, and needle is made shorter, is unlikely to deform in use, so that total is more
Add reliable and stable.In addition, be additionally provided on the flow distribution plate for flow out plastic cement and with first gum outlet spaced
The access of two gum outlets, the lower layer's runner being connected with second gum outlet and connection the upper layer runner and lower layer's runner,
When the needle and the access are matched, lower layer's runner is closed；And on the extending direction of the longitudinal axis, when
The distance between needle and the access increase or reduce, it is possible to increase or reduce the plastic cement flow of second gum outlet.Therefore,
Control when one needle realizes the difference of different runners, applicability is wider and cost is relatively low.
Detailed description of the invention
Fig. 1 is the vertical section structure schematic diagram of hot runner system in the specific embodiment of the invention, at this time needle open or
Close lower layer's runner；
Fig. 2 is the partial enlargement diagram in Fig. 1 at A；
Fig. 3 is the partial enlargement diagram in Fig. 1 at B；
Fig. 4 is the vertical section structure schematic diagram of hot runner system in the specific embodiment of the invention, in needle adjusting at this time
The flow in laminar flow road and lower layer's runner；
Fig. 5 is the partial enlargement diagram in Fig. 4 at C.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
In each diagram of the application, for the ease of illustration, structure or partial certain sizes can be relative to other knots
Structure or part are exaggerated, and therefore, are only used for the basic structure of the theme of diagram the application.
In addition, the term of the representation space relative position used herein such as "upper", " top ", "lower", " lower section " is
A unit as shown in the drawings or feature are described for the purpose convenient for explanation relative to another unit or feature
Relationship.The term of relative space position can be intended to include equipment in use or work other than orientation as shown in the figure not
Same orientation.For example, being described as being located at other units or feature " below " or " under " if the equipment in figure overturn
Unit will be located at other units or feature " top ".Therefore, exemplary term " lower section " can include above and below both
Orientation.Equipment can otherwise be directed (be rotated by 90 ° or other directions), and be interpreted accordingly it is used herein with it is empty
Between relevant description language.
Furthermore, it should be appreciated that although term first, second etc. can be used to describe herein various elements or
Structure, but these be described object should not be by the limitation of above-mentioned term.Above-mentioned term be only used for by these description objects that
This is distinguished.For example, the first gum outlet can be referred to as the second gum outlet, equally, the second gum outlet can also be referred to as first
Gum outlet, this protection scope without departing from this application.
As shown in Figures 1 to 5, one embodiment of the invention provides a kind of hot runner system, which includes injection molding
Mechanism 10, mold and hot mouth component, mold define out frame, and hot mouth component, which is located at, to be opened in frame, and hot mouth component is located at injecting mechanism
10 lower section.Hot runner system further includes temperature control box and at least formed on the hot flow path in injecting mechanism 10, by injecting glue
The plastics of molten condition are successively poured into mold after injecting mechanism 10 and hot mouth component by the means of material heating and temperature control
In type chamber, the formation of gating system of material is avoided.
Hot mouth component includes the first hot mouth component 12 and the second hot mouth component 13, the first hot mouth component 12 and the second hot mouth group
Part 13 is respectively positioned on the lower section of injecting mechanism 10.In this preferred embodiment, the first hot mouth component 12 and the second hot mouth component 13 are arranged
At identical, certainly, the first hot mouth component 12 also can be set into not identical with the second hot mouth component 13.
Injecting mechanism 10 include longitudinally 14 extend needle 16, valve needle 16 can longitudinally 14 extending direction
The driving device 18 of reciprocating motion and flow distribution plate 20 equipped with runner.
The first hot mouth runner that first hot mouth component definition is connected with runner and be connected with the first hot mouth runner and
For the first cast gate 15 of injecting glue, flow distribution plate 20 is equipped with for injecting the glue inlet (not shown) of plastic cement, for flowing out plastic cement
The first gum outlet 22 and be connected to glue inlet and the first gum outlet 22 upper layer runner 24.First gum outlet 22 and the first hot mouth
Runner is connected, and therefore, the first hot mouth runner is connected with upper layer runner 24.Plastic cement goes out by upper layer runner 24 and by first
Glue mouth 22 is flowed into the first hot mouth component 12, then the type chamber of mold is entered by the first cast gate 15 of the first hot mouth component 12
It is interior.Needle 16 is with 24 traversed by of section top runner and needle 16 is far from the first gum outlet 22 and the first cast gate 15, and needle 16 is along vertical
When axis 14 moves, adjustable upper layer runner 24 enters glue sectional area.According to the intersection sectional area of needle 16 and upper layer runner 24
The flow of difference, the first gum outlet 22 is different, when the intersection sectional area of needle 16 and upper layer runner 24 is smaller, the first gum outlet
22 flow is larger, and with pushing down on for needle 16, needle 16 and the intersection sectional area of upper layer runner 24 are become larger, and first
The flow of gum outlet 22 gradually becomes smaller.Correspondingly, the intersection of needle 16 and upper layer runner 24 is cut with the upward twitch of needle 16
Area gradually becomes smaller, and the flow of the first gum outlet 22 becomes larger.Therefore by between control needle 16 and upper layer runner 24
Intersect sectional area to control the flow by upper layer runner 24, thus the flow of the first gum outlet 22 of control, because of the first gum outlet
22 are connected by the first hot mouth runner with the first cast gate 15, to finally control the injecting glue flow of the first cast gate 15.
Specific in the present embodiment, the first cast gate 15 is set as a plurality of, the extension axis and needle 16 of the first cast gate 15
The angled setting of longitudinal axis 14.Certainly, the longitudinal axis phase with needle 16 also can be set into the extension axis of the first cast gate 15
In parallel.
In this preferred embodiment, needle 16 is far from the first gum outlet 22, and on 14 extending direction of the longitudinal axis of needle 16
In substantially perpendicular to longitudinal axis 14 circumferential direction, the first of the separate first hot mouth component 12 of needle 16 and the first hot mouth component 12
Cast gate 15.It longitudinally 14 is pumped by needle 16, i.e., adjustable upper stream road 24 enters glue sectional area to adjust
First gum outlet 22 goes out flow adhesive.Therefore, needle 16 can be made very short, so that needle 16 is not easy in use
Deformation, so that total is more reliable and more stable, improves the service life of entire injecting mechanism 10, reduces costs.
Further, upper layer runner 24 include with the first segment upper layer runner 26 of 16 traversed by of needle and with the first gum outlet 22
The second segment upper layer runner 28 being mutually directly connected to, first segment upper layer runner 26 are connected with glue inlet, first segment upper layer runner 26
It is connected with second segment upper layer runner 28.Specifically, first segment upper layer runner 26 can be connected directly with glue inlet it is logical, certainly,
First segment upper layer runner 26 can also be indirectly connected logical with glue inlet, that is to say, that first segment upper layer runner 26 and glue inlet it
Between in addition one section or one section or more of runner can be set again.In this preferred embodiment, on first segment upper layer runner 26 and second segment
28 phase of laminar flow road is directly connected to, and first segment upper layer runner 26 and second segment upper layer runner 28 are perpendicular.Equally, first segment upper layer
In addition one section or one section or more of runner can also be set between runner 26 and second segment upper layer runner 28.Furthermore on first segment
Laminar flow road 26 and second segment upper layer runner 28 are along linear extension, and first segment upper layer runner 26 extends substantially horizontally, second segment
The roughly vertical extension of upper layer runner 28.
14 extending direction of longitudinal axis and the extending direction of first segment upper layer runner 26 of needle 16 are perpendicular, and needle 16
Diameter is less than the diameter of first segment upper layer runner 26.In general, needle 16 extends along the vertical direction, first segment upper layer runner 26 is along water
Square to extension.Since the diameter of needle 16 is less than the diameter of first segment upper layer runner 26, needle 16 will not block first
Section upper layer runner 26.
Further, it is additionally provided on flow distribution plate 20 for flowing out plastic cement and going out with the first gum outlet 22 spaced second
Glue mouth 30, the lower layer's runner 32 being connected with the second gum outlet 30 and the access 34 for being connected to upper layer runner 24 and lower layer's runner 32.
In addition, the second hot mouth component 13 define the second hot mouth runner (not shown) being connected with lower layer runner 32 and with the second hot mouth
Runner is connected and is used for the second cast gate 33 of injecting glue, and the second gum outlet 30 is connected with the second hot mouth runner, and therefore, second goes out
Glue mouth 30 is logical with 33 phase two of the second cast gate by the second hot mouth runner.The plastic cement flowed out from the second gum outlet 30 enters the second heat
In mouth runner, finally it is injected into mold cavity by the second cast gate 33 again.
In the present embodiment, the set-up mode of the second cast gate 33 is identical as the first cast gate 15, and certainly, the second cast gate 33 can also be with
It is arranged to different from the first cast gate 15.
Lower layer's runner 32 includes the first segment lower layer runner 36 being connected with access 34, directly connects with 30 phase of the second gum outlet
Logical second segment lower layer runner 38, first segment lower layer runner 36 are connected with second segment lower layer runner 38, and needle 16 can be in access
Longitudinally 14 extending direction moves back and forth in 34.On 14 extending direction of longitudinal axis of needle 16, lower layer's runner 32 is located at
The lower section of upper layer runner 24, specifically, first segment lower layer runner 36 is located at the lower section of first segment upper layer runner 26, second segment upper layer
Runner 28 and second segment lower layer runner 38 are parallel to each other, and second segment upper layer runner 28 and second segment lower layer runner 38 are along vertical
Direction extends.
Specifically, first segment upper layer runner 26 is parallel with first segment lower layer runner 36, and define perpendicular to needle 16
The plane of longitudinal axis 14 is the first plane, the projection of first segment upper layer runner 26 and first segment lower layer runner 36 on the first plane
Part overlaps, and access 34 is connected to first segment upper layer runner 26 and first segment lower layer runner 36, and access 34 extends along the vertical direction.
Preferably, the diameter of needle 16 is adapted with the diameter of access 34, and the longitudinal axis of needle 16 and access 34 prolong
Axis is stretched to coincide.Needle 16 longitudinally 14 extending direction movement when, in longitudinal axis 14 between needle 16 and access 34
Distance on extending direction increases or reduces, to increase or reduce the plastic cement flow of the second gum outlet 30, when needle 16 and access
34 it is matched when, lower layer's runner 32 is closed, at this time the second gum outlet 30 stop plastic emitting.Because of the second gum outlet 30 and the second cast gate
33 are connected by the second hot mouth runner, therefore are finally controlled the second cast gate 33 to the gel quantity of mold cavity or stopped
Glue.
On the extending direction of the longitudinal axis 14 of needle 16, the first gum outlet 22 and the second gum outlet 30 are located at sustained height
On, it is spaced apart between the first gum outlet 22 and the second gum outlet 30 on the circumferential direction perpendicular to longitudinal axis 14.So set
It sets, only passes through a needle 16, so that it may control the flow of the first gum outlet 22 and second 30 two gum outlets of gum outlet, and can make
It obtains the second gum outlet 30 and stops plastic emitting.To realize through a needle 16, the first cast gate 15 and the second cast gate 33 are controlled
Flow or make the second cast gate 33 stop injecting glue so that manufacturing cost is lower, and needle 16 does not need to extend to hot mouth
To control opening or closing for cast gate in runner, therefore 16 need of needle are made shorter, and stability is more preferable, is unlikely to deform.
Specifically, when the end of the end of needle 16 and 34 flush of access or needle 16 enters in access 34, the
Two gum outlets 30 stop plastic emitting.When twitching upwards when needle 16 to the direction far from access 34,22 He of the first gum outlet may make
The flow of second gum outlet 30 is gradually increased, correspondingly, when being pushed down on when needle 16 to the direction close to access 34, so that
The flow of first gum outlet 22 and the second gum outlet 30 is gradually reduced.Further, the end of needle 16 is arc, therefore,
Only when the interior thereof of the periphery of needle 16 and access 34 touches, needle 16 just encloses access and then closes lower layer's runner
32, upper layer runner 24 remains to circulation plastic cement at this time.
In this preferred embodiment, due to being additionally provided with the second gum outlet 30 and second for flowing out plastic cement on flow distribution plate 20
The access 34 of lower layer's runner 32 and connection upper layer runner and lower layer's runner 32 that gum outlet 30 is connected, when needle 16 and access
34 it is matched when, lower layer's runner 32 is closed, and due to the diameter of needle 16 be less than first segment upper layer runner 26 diameter, at this time
Needle 16 does not close first segment upper layer runner 26, and first segment upper layer runner 26 remains to circulation plastic cement, therefore the first gum outlet is still
Energy plastic emitting, and the second gum outlet stops plastic emitting；And on the extending direction of longitudinal axis 14, when between needle 16 and access 34 away from
From increasing or reducing, it is possible to increase or reduce the plastic cement flow of the second gum outlet 30.Therefore, a needle 16 realizes different runners
Difference when control, applicability is wider and cost is relatively low.To sum up, in this preferred embodiment, a driving device drives a valve
Control when needle achieves that the difference of two injection molding points, so that only needing with half or less driving device and needle
Control when achieving that the difference of different runners, greatly reduces manufacturing cost.
Further, driving device 18 includes shell and the driving structure being set in the housing, and driving structure is selectively driven
Dynamic needle 16 longitudinally 14 extending direction move back and forth, shell is fixedly connected with 20 phase of flow distribution plate.In this preferred embodiment,
Shell and flow distribution plate 20 are linked together by bolt 40, can also be used certainly, between shell and flow distribution plate 20 other solid
Determine connection type.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of injecting mechanism, the injecting mechanism includes the needle longitudinally extended, drives the needle can be longitudinally
The driving device that moves back and forth of extending direction and flow distribution plate equipped with runner, which is characterized in that
The flow distribution plate be equipped with glue inlet for injecting plastic cement, for flow out the first gum outlet of plastic cement be connected to described in enter
The upper layer runner of Jiao Kou and the first gum outlet, the needle and the part upper layer runner traversed by and the needle are far from described the
One gum outlet, when the needle is along the longitudinal line of movement, the upper layer runner is adjusted enters glue sectional area.
2. injecting mechanism according to claim 1, which is characterized in that the upper layer runner includes and the needle traversed by
First segment upper layer runner and the second segment upper layer runner being mutually directly connected to first gum outlet, first segment upper layer runner
It is connected with the glue inlet, first segment upper layer runner is connected with second segment upper layer runner.
3. injecting mechanism according to claim 2, which is characterized in that the longitudinal axis extending direction of the needle and described the
The extending direction of one section of upper layer runner is perpendicular, and the diameter of the needle is less than the diameter of first segment upper layer runner.
4. injecting mechanism according to claim 2, which is characterized in that first segment upper layer runner and second segment upper stream
Road is mutually directly connected to, and first segment upper layer runner and second segment upper layer runner are perpendicular.
5. injecting mechanism according to claim 2, which is characterized in that be additionally provided on the flow distribution plate for flow out plastic cement and
With spaced second gum outlet of first gum outlet, the lower layer's runner being connected with second gum outlet and connection
The access of the upper layer runner and lower layer's runner, lower layer's runner include the first segment underflow being connected with the access
Road, the second segment lower layer runner being mutually directly connected to second gum outlet, first segment lower layer runner and second segment lower layer
Runner is connected, the needle can the extending direction in the access along the longitudinal axis move.
6. injecting mechanism according to claim 5, which is characterized in that the diameter phase of the diameter of the needle and the access
Adaptation, when the needle is moved along the extending direction of the longitudinal axis, the needle drivingly can be moved longitudinally, so that
The needle between the access on the extending direction of the longitudinal axis at a distance from increase or reduce, and work as the part valve
When needle is located in the access, the needle closes lower layer's runner.
7. injecting mechanism according to claim 1, which is characterized in that be additionally provided on the flow distribution plate for flow out plastic cement and
With spaced second gum outlet of first gum outlet, the lower layer's runner being connected with second gum outlet and connection
The access of the upper layer runner and lower layer's runner, the diameter of the needle are adapted with the diameter of the access, the needle edge
The longitudinal axis extending direction movement when, the needle drivingly can be moved longitudinally so that the needle with it is described
Distance between access on the extending direction of the longitudinal axis increases or reduces, and when the part needle is located at the access
When middle, the needle closes lower layer's runner.
8. injecting mechanism according to claim 1, which is characterized in that the driving device include shell and be set to the shell
Intracorporal driving structure, the driving structure selectively drive the extending direction of the needle longitudinally to move back and forth, institute
Shell is stated mutually to be fixedly connected with the flow distribution plate.
9. a kind of hot runner system, the hot runner system includes injecting mechanism and positioned at the first of the lower section of the injecting mechanism
Hot mouth component, the injecting mechanism include that the needle longitudinally extended, the driving needle can extending directions longitudinally
The driving device of reciprocating motion and flow distribution plate equipped with runner, which is characterized in that
The first hot mouth runner that the first hot mouth component definition is connected with the runner and with the first hot mouth runner
It is connected and is used for the first cast gate of injecting glue, the flow distribution plate is equipped with for injecting the glue inlet of plastic cement, for flowing out plastic cement
The first gum outlet and the connection glue inlet and the first gum outlet upper layer runner, first gum outlet and described first
Hot mouth runner is connected, and the needle and the part upper layer runner traversed by and the needle are far from first gum outlet and the
One cast gate, when the needle is along the longitudinal line of movement, the upper layer runner is adjusted enters glue sectional area.
10. hot runner system according to claim 9, which is characterized in that be additionally provided on the flow distribution plate for flowing out modeling
Glue and with spaced second gum outlet of first gum outlet, the lower layer's runner being connected with second gum outlet and
It is connected to the access of the upper layer runner and lower layer's runner, the hot runner system further includes the second hot mouth component, second heat
Nozzle assembly defines the second hot mouth runner being connected with lower layer's runner and is connected and uses with the second hot mouth runner
In the second cast gate of injecting glue, the diameter of the needle is adapted with the diameter of the access, and the needle is along the longitudinal axis
Extending direction move when, the needle between the access on the extending direction of the longitudinal axis at a distance from increase or subtract
It is small, to increase or reduce the plastic cement flow of second gum outlet, when the needle and the access are matched, the lower layer
Runner is closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910836456.4A CN110435089B (en) | 2019-09-05 | 2019-09-05 | Injection molding mechanism and hot runner system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910836456.4A CN110435089B (en) | 2019-09-05 | 2019-09-05 | Injection molding mechanism and hot runner system |
Publications (2)
| Publication Number | Publication Date |
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| CN110435089A true CN110435089A (en) | 2019-11-12 |
| CN110435089B CN110435089B (en) | 2024-08-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060202052A1 (en) * | 2003-02-05 | 2006-09-14 | Friedrich Boecking | Fuel injection valve comprising two coaxial valve needles |
| CN203371739U (en) * | 2013-05-30 | 2014-01-01 | 麦士德福科技(深圳)有限公司 | Color-changing insert of hot runner system and hot runner system adopting color-changing insert |
| CN205272513U (en) * | 2016-01-06 | 2016-06-01 | 东莞市贝斯特热流道科技有限公司 | Subassembly convenient to adjust hot runner flow |
| CN206644280U (en) * | 2017-03-10 | 2017-11-17 | 深圳市宝泽热流道有限公司 | The adjustable for height hot flow path injection moulding apparatus of needle |
| CN210501216U (en) * | 2019-09-05 | 2020-05-12 | 柳道万和(苏州)热流道系统有限公司 | Injection molding mechanism and hot runner system |
-
2019
- 2019-09-05 CN CN201910836456.4A patent/CN110435089B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060202052A1 (en) * | 2003-02-05 | 2006-09-14 | Friedrich Boecking | Fuel injection valve comprising two coaxial valve needles |
| CN203371739U (en) * | 2013-05-30 | 2014-01-01 | 麦士德福科技(深圳)有限公司 | Color-changing insert of hot runner system and hot runner system adopting color-changing insert |
| CN205272513U (en) * | 2016-01-06 | 2016-06-01 | 东莞市贝斯特热流道科技有限公司 | Subassembly convenient to adjust hot runner flow |
| CN206644280U (en) * | 2017-03-10 | 2017-11-17 | 深圳市宝泽热流道有限公司 | The adjustable for height hot flow path injection moulding apparatus of needle |
| CN210501216U (en) * | 2019-09-05 | 2020-05-12 | 柳道万和(苏州)热流道系统有限公司 | Injection molding mechanism and hot runner system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110435089B (en) | 2024-08-09 |
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