CN109501155A - Hot mouth component, hot runner system and its needle - Google Patents
Hot mouth component, hot runner system and its needle Download PDFInfo
- Publication number
- CN109501155A CN109501155A CN201910020890.5A CN201910020890A CN109501155A CN 109501155 A CN109501155 A CN 109501155A CN 201910020890 A CN201910020890 A CN 201910020890A CN 109501155 A CN109501155 A CN 109501155A
- Authority
- CN
- China
- Prior art keywords
- needle
- material returned
- cast gate
- hot mouth
- mouth component
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000003292 glue Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000009466 transformation Effects 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
- B29C45/28—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)
Abstract
Present invention discloses a kind of hot mouth components, hot runner system and its needle, the hot mouth component includes the sharp-tongued and needle longitudinally extended, the needle is set to described sharp-tongued interior, it is described sharp-tongued to define runner, the pilot hole being connected with the runner, and the cast gate being connected with the pilot hole, and the internal diameter of the pilot hole is greater than the internal diameter of the cast gate, wherein, the needle has sealing compatible with cast gate portion and guide part compatible with the pilot hole, the guide part is equipped with material returned slot, the needle is longitudinally moved to open or close the cast gate, when the needle closes the cast gate, the gate land is connected to the top edge of the pilot hole by the material returned slot with the runner.The invention enables on the basis of correct guidance needle, will not generating tired glue phenomenon, needle and sharp-tongued all protected well.
Description
Technical field
The present invention relates to hot runner mould field more particularly to a kind of hot mouth components, hot runner system and its needle.
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 shown in Figure 1, hot mouth component includes sharp-tongued 2, it is movably disposed in sharp-tongued 2 needle 4, at the end of injection molding, needle 4
5 sealing of cast gate is closed, but because of the impact of needle 4, the material at cast gate 5 can not be completely into type chamber, and part material needs to return back to stream
In road.It is currently that there are gaps 6 between needle 4 and sharp-tongued 2, after 4 sealing of needle, the plastic cement at cast gate 5 retracts, but this
Kind of structure usually because the thermal expansion factor of hot flow path cause needle can not correct sealing form different so that needle 4 be made to break cast gate
Often.
Summary of the invention
The purpose of the present invention is to provide a kind of hot mouth component, hot runner system and its needles, so that in correct guidance valve
On the basis of needle, tired glue phenomenon will not be generated, needle and sharp-tongued all protected well.
One of for achieving the above object, an embodiment of the present invention provides a kind of hot mouth component, the hot mouth component
Including the sharp-tongued and needle longitudinally extended, the needle be set to it is described it is sharp-tongued in, it is described it is sharp-tongued define runner, with it is described
The pilot hole that runner is connected and the cast gate being connected with the pilot hole, and the internal diameter of the pilot hole is greater than the cast gate
Internal diameter, wherein the needle have sealing compatible with cast gate portion and guide part compatible with the pilot hole,
The guide part is equipped with material returned slot, and the needle is longitudinally moved to open or close the cast gate, when the needle closes
When closing the cast gate, the gate land is connected to the top edge of the pilot hole by the material returned slot with the runner.
As the further improvement of an embodiment of the present invention, it is described it is sharp-tongued further include connecting the cast gate and pilot hole
Interconnecting piece has certain interval when the needle closes the cast gate between the interconnecting piece and the needle.
As the further improvement of an embodiment of the present invention, the needle further includes connecting the sealing portion and guide part
Rake, formed angle is obtuse angle between the rake and the guide part, and one end of the material returned slot extends to institute
Rake is stated, the other end of the material returned slot is connected with the runner.
As the further improvement of an embodiment of the present invention, between having centainly between the rake and the interconnecting piece
Away from.
As the further improvement of an embodiment of the present invention, the extending direction of the material returned slot is parallel to the longitudinal axis
Extending direction.
As the further improvement of an embodiment of the present invention, the material returned slot is set as a plurality of, and the material returned slot
Circumferential direction along the guide part is uniformly distributed.
As the further improvement of an embodiment of the present invention, the material returned slot is set as 3, and 3 material returned slots
It is disposed as being parallel to the plane notch of the longitudinal axis.
As the further improvement of an embodiment of the present invention, the material returned slot has the lengthwise extended along the longitudinal axis
Opening, the lengthwise opening is in face of described sharp-tongued.
One of for achieving the above object, an embodiment of the present invention also provides a kind of hot runner system, wherein described
Hot runner system includes the hot mouth component as described in any of the above-described technical solution.
One of for achieving the above object, an embodiment of the present invention also provides a kind of needle for hot mouth component,
Wherein, the needle includes body part, the sealing portion set on the end of the body part, the guiding that is connected with the sealing portion
Portion, the outer diameter of the guide part are greater than the outer diameter in the sealing portion, and the guide part is equipped with the material returned slot of both ends perforation.
Compared with prior art, the beneficial effects of the present invention are: since the guide part of needle is adapted with pilot hole, and
Guide part is equipped with material returned slot, and when needle closes cast gate, the gate land moves back the top edge of the pilot hole by described
Hopper is connected with the runner.In this way, the material at cast gate can be retracted by material returned slot when needle closes cast gate progress sealing
To runner, therefore needle not only can be by correct guidance, and will not generate tired glue phenomenon, make needle and it is sharp-tongued can obtain very well
Protection.
Detailed description of the invention
Fig. 1 is the vertical section structure schematic diagram of hot mouth component in the prior art；
Fig. 2 is the vertical section structure schematic diagram of hot mouth component in the specific embodiment of the invention, and needle opens cast gate at this time；
Fig. 3 is the vertical section structure schematic diagram of hot mouth component in the specific embodiment of the invention, and needle closes cast gate at this time；
Fig. 4 is the stereoscopic schematic diagram of the needle in Fig. 1 in hot mouth component；
Fig. 5 is the main view of needle in Fig. 4；
Fig. 6 is A-A cross-sectional view in Fig. 5；
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.
The term of the representation space relative position used herein such as "upper", " top ", "lower", " lower section " is for just
A unit as shown in the drawings or feature are described relative to another unit or the relationship of feature in the purpose of explanation.It is empty
Between the term of relative position can be intended to include different direction of the equipment in use or work other than orientation as shown in the figure.
For example, the unit for being described as being located at other units or feature " below " or " under " will if the equipment in figure overturn
Positioned at other units or feature " top ".Therefore, exemplary term " lower section " can include above and below both orientation.If
It is standby to be otherwise directed (be rotated by 90 ° or other directions), and be interpreted accordingly used herein with space correlation
Language is described.
As shown in Figures 2 to 6, the specific embodiment of the invention provides a kind of hot runner system, which includes heat
Nozzle assembly, temperature control box and at least formed on the hot flow path in hot mouth component, by the means to injecting glue material heating and temperature control,
The plastics of molten condition are successively poured into after hot mouth component in the type chamber of mold, avoid the formation of gating system of material.
Hot mouth component includes that longitudinally 8 sharp-tongued 10 and the needle 12 extended, needle 12 are set in sharp-tongued 10.In general, hot
Nozzle assembly further includes hot mouth (not shown), and sharp-tongued 10 are connected to hot mouth.Needle 12 includes body part 14, sealing portion 16 and guide part
18.Sealing portion 16 is set to the end of body part 14, and guide part 18 is connected with sealing portion 16, and the outer diameter of guide part 18 is greater than envelope
The outer diameter in glue portion 16, further, guide part 18 are equipped with material returned slot 19.The both ends of material returned slot 19 connect.
Sharp-tongued 10 define runner 20, the pilot hole being connected with runner 20 22 and the cast gate being connected with pilot hole 22
24, and the internal diameter of pilot hole 22 be greater than cast gate 24 internal diameter, wherein sealing portion 16 is adapted with cast gate 24, guide part 18 with lead
Compatible to hole 22, needle 12 longitudinally 8 is moved to open or close cast gate 24, when needle 12 opens cast gate 24,
Plastic cement is molded type chamber from the outflow of cast gate 24.When being molded completion, when needle 12 is moved down to close cast gate 24, cast gate
24 are connected by material returned slot 19 with runner 20 in face of the top edge of pilot hole 22.
In this preferred embodiment, since the guide part 18 of needle 12 is adapted with pilot hole 22, and guide part 18 is equipped with
Material returned slot 19, when needle 12 closes cast gate 24, cast gate 24 passes through material returned slot 19 and runner 20 in face of the top edge of pilot hole 22
It is connected.In this way, the material at cast gate 24 can return back to runner by material returned slot 19 when needle 12 closes the progress sealing of cast gate 24
20, therefore needle 12 not only can be by correct guidance, and will not generate tired glue phenomenon, obtain needle 12 and sharp-tongued 10 can very
Good protection.
Further, sharp-tongued 10 further include the interconnecting piece 26 for connecting cast gate 24 and pilot hole 22, when needle 12 closes cast gate
When 24, there is certain interval between interconnecting piece 26 and needle 12, material returned slot 19 is connected with the gap.In addition, when needle 12 closes
When closing cast gate 24, in the side of the closer runner 20 of cast gate 24, sealing portion 16 protrudes from cast gate 24.In this preferred embodiment, even
At obtuse angle certainly, other angles also can be set into, such as interconnecting piece 26 in socket part 26 and cast gate 24 between interconnecting piece 26 and cast gate 24
It is perpendicular with cast gate 24.
In addition, needle 12 further includes the rake 28 for connecting sealing portion 16 and guide part 18, rake 28 and guide part 18
Between formed angle be obtuse angle, one end of material returned slot 19 extends to rake 28, the other end and 20 phase of runner of material returned slot 19
Connection.Further, rake 28 is parallel with interconnecting piece 26, and has between rake 28 and interconnecting piece 26 at regular intervals.
Certainly, irrelevancy row also can be set into rake 28 and interconnecting piece 26.Material when needle 12 closes cast gate 24, at cast gate 24
Spacing between rake 28 and interconnecting piece 26 enters material returned slot 19, finally enters runner 20 by material returned slot 19 again
In.
Further, the extending direction of material returned slot 19 is parallel to the extending direction of longitudinal axis 8.Certainly, material returned slot 19 can also
To be arranged to the extending direction irrelevancy row with longitudinal axis 8.
Material returned slot 19 is set as a plurality of, circumferentially-spaced distribution of the material returned slot 19 along guide part 18.In this preferred embodiment,
A plurality of material returned slots 19 are set as identical, and certainly, difference also can be set into a plurality of material returned slots 19.Specifically, material returned slot 19
3 are set as, and material returned slot 19 is uniformly distributed along the circumferential direction of guide part 18.Certainly, along the circumferential direction of guide part 18, material returned slot 19
Non-uniform Distribution can be set into.In addition, 3 material returned slots 19 are disposed as being parallel to the plane notch of longitudinal axis, that is to say, that
On the direction perpendicular to longitudinal axis 8, the cross section of material returned slot 19 is straight line.Certainly, the cross section of material returned slot 19 can also be set
Count into other shapes, such as arc or other curves.
In addition, material returned slot 19 has longitudinally, the 8 lengthwise opening extended, lengthwise opening face sharp-tongued 10, material returned slot 19
With sharp-tongued 10 between constitute cast gate at plastic cement reflux channel.That is, the circumferential direction of material returned slot 19 is set as open, and
It is non-enclosed, so set, being convenient for the manufacture of needle 12.
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 hot mouth component, the hot mouth component includes the sharp-tongued and needle longitudinally extended, and the needle is set to described
It is described sharp-tongued to define runner, the pilot hole being connected with the runner and poured with what the pilot hole was connected in sharp-tongued
Mouthful, and the internal diameter of the pilot hole is greater than the internal diameter of the cast gate, which is characterized in that the needle has mutually fits with the cast gate
The sealing portion matched and guide part compatible with the pilot hole, the guide part are equipped with material returned slot, and the needle is longitudinally
It moves to open or close the cast gate, when the needle closes the cast gate, the gate land is to the pilot hole
Top edge is connected by the material returned slot with the runner.
2. hot mouth component according to claim 1, which is characterized in that it is described it is sharp-tongued further include connecting the cast gate and guiding
The interconnecting piece in hole has certain interval when the needle closes the cast gate between the interconnecting piece and the needle.
3. hot mouth component according to claim 2, which is characterized in that the needle further includes connecting the sealing portion and leading
To the rake in portion, formed angle is obtuse angle between the rake and the guide part, and one end of the material returned slot extends
To the rake, the other end of the material returned slot is connected with the runner.
4. hot mouth component according to claim 3, which is characterized in that have one between the rake and the interconnecting piece
Fixed spacing.
5. hot mouth component according to claim 1, which is characterized in that the extending direction of the material returned slot is parallel to described vertical
The extending direction of axis.
6. hot mouth component according to claim 1, which is characterized in that the material returned slot is set as a plurality of, and described moves back
Hopper is uniformly distributed along the circumferential direction of the guide part.
7. hot mouth component according to claim 6, which is characterized in that the material returned slot is set as 3, and moves back described in 3
Hopper is disposed as being parallel to the plane notch of the longitudinal axis.
8. hot mouth component according to claim 1, which is characterized in that the material returned slot, which has, to be extended along the longitudinal axis
Lengthwise opening, the lengthwise opening is in face of described sharp-tongued.
9. a kind of hot runner system, which is characterized in that the hot runner system includes as described in any one of claim 1~8
Hot mouth component.
10. a kind of needle for hot mouth component, which is characterized in that the needle includes body part, set on the body part
The sealing portion of end, the guide part being connected with the sealing portion, the outer diameter of the guide part are greater than the outer diameter in the sealing portion,
The guide part is equipped with the material returned slot of both ends perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020890.5A CN109501155A (en) | 2019-01-09 | 2019-01-09 | Hot mouth component, hot runner system and its needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020890.5A CN109501155A (en) | 2019-01-09 | 2019-01-09 | Hot mouth component, hot runner system and its needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109501155A true CN109501155A (en) | 2019-03-22 |
Family
ID=65757411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910020890.5A Withdrawn CN109501155A (en) | 2019-01-09 | 2019-01-09 | Hot mouth component, hot runner system and its needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109501155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696299A (en) * | 2019-10-21 | 2020-01-17 | 温州龙华日用电子有限公司 | Double-layer stacked hot runner main nozzle separation mold and separation process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0638407A1 (en) * | 1993-08-13 | 1995-02-15 | Apparate- und Werkzeugbau AG | Injection nozzle |
| JPH07148786A (en) * | 1993-11-30 | 1995-06-13 | Victor Co Of Japan Ltd | Injection molding apparatus |
| CN106994767A (en) * | 2017-05-05 | 2017-08-01 | 浙江思纳克热流道科技有限公司 | Carry the needle structure of guide-localization |
| CN107310107A (en) * | 2017-08-24 | 2017-11-03 | 广东柳道热流道***有限公司 | Valve needle of hot runner buffers feeding structure |
-
2019
- 2019-01-09 CN CN201910020890.5A patent/CN109501155A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0638407A1 (en) * | 1993-08-13 | 1995-02-15 | Apparate- und Werkzeugbau AG | Injection nozzle |
| JPH07148786A (en) * | 1993-11-30 | 1995-06-13 | Victor Co Of Japan Ltd | Injection molding apparatus |
| CN106994767A (en) * | 2017-05-05 | 2017-08-01 | 浙江思纳克热流道科技有限公司 | Carry the needle structure of guide-localization |
| CN107310107A (en) * | 2017-08-24 | 2017-11-03 | 广东柳道热流道***有限公司 | Valve needle of hot runner buffers feeding structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696299A (en) * | 2019-10-21 | 2020-01-17 | 温州龙华日用电子有限公司 | Double-layer stacked hot runner main nozzle separation mold and separation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190322 |
|
| WW01 | Invention patent application withdrawn after publication |