CN106426800A - Large hot runner system without interfering system operation after glue leakage - Google Patents
Large hot runner system without interfering system operation after glue leakage Download PDFInfo
- Publication number
- CN106426800A CN106426800A CN201610844882.9A CN201610844882A CN106426800A CN 106426800 A CN106426800 A CN 106426800A CN 201610844882 A CN201610844882 A CN 201610844882A CN 106426800 A CN106426800 A CN 106426800A
- Authority
- CN
- China
- Prior art keywords
- transition
- template
- flow distribution
- distribution plate
- hole
- 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
- 239000003292 glue Substances 0.000 title abstract description 6
- 230000002452 interceptive effect Effects 0.000 title abstract 2
- 230000007704 transition Effects 0.000 claims abstract description 102
- 239000000853 adhesive Substances 0.000 claims description 32
- 230000001070 adhesive effect Effects 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008439 repair process 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
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of hot runners, in particular to a large hot runner system without interfering system operation after glue leakage. The large hot runner system structurally comprises a transition template arranged between a first spreader plate and a second spreader plate; the transition template is provided with a through hole; a transition hot sprue is arranged in the through hole; an inlet end face of the transition hot sprue pushes against the first spreader plate; an outlet end face of the transition hot sprue pushes against the second spreader plate; and a gap between the outer wall of the transition hot sprue and the inner wall of the through hole is bigger than a gap between the periphery part of an opening of the through hole of the transition template and the first spreader plate, and a gap between the periphery part of the opening of the through hole of the transition template and the second spreader plate. In this way, molten glue leaking from the transition hot sprue shall flow into and is collected in the gap between the outer wall of the transition hot sprue and the inner wall of the through hole, and can not leak outwards continuously to flow onto the first spreader plate or the second spreader plate. Therefore, even if the large hot runner system has the glue leakage, normal operation of the overall large hot runner system can be guaranteed, and die wear arising from the glue leakage can be eliminated.
Description
Technical field
The present invention relates to Hot runner Technology field, and in particular to a kind of complementary large-scale TOP-TIP that interferes of leak adhesive.
Background technology
Large-scale TOP-TIP is generally provided with multilamellar flow distribution plate, and these flow distribution plates are the central modules of TOP-TIP,
Flow distribution plate can not only cause the flow velocity of plastic melts more steady, additionally it is possible to make mould mould filling more uniform, fill
Point.In injection moulding process, the plastic melts for flowing out from sprue flow through each sub-runner shunting biography each layer flow distribution plate successively
Transport to each hot nozzle, most after flow in the die cavity of mould through hot nozzle.
For current large-scale TOP-TIP, hot flow path leak adhesive is the principal element for causing die wear and disabling, and
The multiple area of the leak adhesive of TOP-TIP typically occurs in the joint of two neighboring flow distribution plate, in this place after leak adhesive, plastic melts
May proceed to be seeped at two neighboring flow distribution plate, and then so that whole TOP-TIP is all filled up by plastic cement, ultimately result in a whole set of hot-fluid
Road system normally cannot be run, and greatly increase the cost that repairs a die.In addition, TOP-TIP leak adhesive is the phenomenon it is difficult to eliminate, people
Presently done improvement is all to strengthen sealing to make to reduce at its leak adhesive amount and leak adhesive, but so causes the structure of TOP-TIP more
For complexity, cost raising, effect is little.
Outside, existing large-scale TOP-TIP, as the spacing between its two neighboring flow distribution plate is less, two shuntings
The heat radiated by plate makes the temperature of mould too high, and then can cause the damage of mould, and as spacing is less, also not
It is easy to the setting of cooling system.Also due to the spacing between adjacent flow distribution plate is less, the driving means of valve needle movements are driven
Can not possibly be arranged on the spacing internal partition, and the installation site of driving means will also avoid the flow distribution plate that is positioned above,
So driving means will be arranged on all flow distribution plates top, this allow for needle length must long enough, not only make material
Cost increases, and makes needle be easily bent deformation, affects the mold use life-span.
Content of the invention
Present invention aims to deficiency of the prior art, and provide a kind of the big of leak adhesive not interference system operation
Type TOP-TIP, can not only guarantee the normal operation of whole system, and can disappear after the large-scale TOP-TIP leak adhesive
Remove the die wear for causing because of leak adhesive.
The purpose of the present invention is achieved through the following technical solutions.
A kind of leak adhesive large-scale TOP-TIP that interference system does not run is provided, including the first template and the second template, institute
Stating the first embedded within template has first flow distribution plate affixed with which, and second embedded within template has second flow distribution plate affixed with which,
Transition template is provided between first flow distribution plate and second flow distribution plate, transition template offers through hole, in the through hole
The hot nozzle of transition is equipped with, the sub-runner of first flow distribution plate is by the transition runner of the hot nozzle of the transition and second flow distribution plate
Sub-runner connection, the entrance face of the hot nozzle of the transition supports the first flow distribution plate, and the exit end face of the hot nozzle of the transition is supported
Second flow distribution plate, the gap between the hot outer wall of nozzle of the transition and the inwall of the through hole is respectively greater than the stage die
Gap between the through hole both ends open periphery of plate and two flow distribution plates.
Wherein, the sealing briquetting of ring-type, institute are provided between the exit end face of the hot nozzle of the transition and second flow distribution plate
The gap that states between the outer wall of the hot nozzle of transition and the inwall of the through hole is logical with the transition template more than the sealing briquetting
Gap between the both ends open periphery of hole.
Wherein, the edge part of the exit end face of the hot nozzle of the transition offer indent and extend to the hot nozzle of the transition
The step of outer wall.
Wherein, the step is ring-shaped step.
Wherein, the arrival end of the hot nozzle of the transition is provided with flange part, and the transition template is provided with the end of the through hole
For the limited impression of flange part insertion, the end face of the flange part supports first flow distribution plate, the flange part
Other end abuts the bottom surface of the limited impression, and the gap between the hot outer wall of nozzle of the transition and the inwall of the through hole is big
Gap between the end face of the flange part and the bottom surface of the limited impression.
Wherein, also include top board, heat-insulated meson between the top board and first flow distribution plate, is provided with, described heat-insulated
The axis of the axis of meson and the hot nozzle of the transition is on the same line.
Wherein, the transition template includes the 3rd template between first template and second template.
Wherein, the transition template includes the 3rd template and the part with the first template of the 3rd template proximate, institute
State the 3rd template to be located between first template and second template.
Wherein, the 3rd inner formwork has the driving means that valve needle is moved.
Wherein, the 3rd inner formwork has the cooling water channel for lowering the temperature to the driving means.
Beneficial effects of the present invention：
The non-interference large-scale TOP-TIP of the leak adhesive of the present invention, by arranging between the first flow distribution plate and the second flow distribution plate
Transition template, and through hole is offered on transition template, the hot nozzle of transition is built in through hole, and the entrance face of the hot nozzle of transition is supported
First flow distribution plate, the exit end face of the hot nozzle of transition supports the second flow distribution plate, between the outer wall of the hot nozzle of transition and the inwall of through hole
Gap is respectively greater than the gap between the through hole both ends open periphery of transition template and two flow distribution plates, so from the hot nozzle of transition
Transition runner oozes out the melten gel for coming by the gap for flowing between inwall of the outer wall of the hot nozzle of transition with through hole, and the gap is formed
Transition ring cavity plays pressure release effect, the inflow transition ring cavity that the melten gel for oozing out can continue in this transition ring cavity to the melten gel for oozing out
Interior aggregation, outwards oozes out without continuation and flows on the first flow distribution plate or the second flow distribution plate, therefore, even if the present invention's is large-scale
TOP-TIP has leak adhesive phenomenon, but is all gathered between inwall of the outer wall of the hot nozzle of transition with through hole due to oozing out the melten gel for coming
Gap in, melten gel will not continue to outwards be exuded to flow distribution plate, therefore still be able to guarantee the normal operation of whole system, and energy
The die wear that enough eliminations are caused because of leak adhesive.
Description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not constitute any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to the following drawings
Other accompanying drawings.
Fig. 1 for the present invention a kind of leak adhesive not interference system operation large-scale TOP-TIP structural representation.
Fig. 2 is the mplifying structure schematic diagram at the A in Fig. 1.
Include in Fig. 1 and Fig. 2：
The first template of 1-；
The second template of 2-；
The first flow distribution plate of 3-；
The second flow distribution plate of 4-；
The 3rd template of 5-；
The hot nozzle of 6- transition, 61- flange part；
7- transition ring cavity；
8- sealing briquetting；
9- driving means；
10- top board；
The heat-insulated meson of 11-；
12- melten gel.
Specific embodiment
The invention will be further described with the following Examples, a kind of not interference system operation of leak adhesive of the present invention big
Type TOP-TIP, as depicted in figs. 1 and 2, its structure includes the first template 1 and the second template 2, the first template 1 be embedded with
Its first affixed flow distribution plate 3, the second template 2 is embedded with second flow distribution plate 4 affixed with which, the first flow distribution plate 3 and second point
Transition template is provided between stream plate 4, in the present embodiment, transition template is included the 3rd template 5 and closely pressed with the 3rd template 5
A part for first template 1, the 3rd template 5 is located between the first template 1 and the second template 2, and certain transition template can also be
The 3rd independent template 5.
Transition template is provided with through hole, and through hole is built-in with the hot nozzle 6 of transition, and the sub-runner of the first flow distribution plate 3 passes through the hot nozzle 6 of transition
Transition runner connect with the sub-runner of the second flow distribution plate 4, multiple for leak adhesive in the contact area of the hot nozzle 6 of two flow distribution plates and transition
Area, in prior art, the melten gel 12 that oozes out from there will be flowed on amount flow distribution plate, and then cause the whole TOP-TIP cannot
Normal operation.
In the present embodiment, the sealing briquetting 8 of ring-type is provided between the exit end face and the second flow distribution plate 4 of the hot nozzle 6 of transition,
Gap between the hot outer wall of nozzle 6 of transition and the inwall of through hole is more than sealing briquetting 8 and stage die positioned at through hole by mouth periphery
Gap between plate, the gap between the hot outer wall of nozzle 6 of transition and the inwall of through hole is transition ring cavity 7, even if such present invention
There is leak adhesive phenomenon, the melten gel 12 for oozing out from the exit end face of the hot nozzle 6 of transition can be flowed in transition ring cavity 7, and along this transition
Ring cavity 7 is flowed up（As shown by the arrows in Figure 2）, as the size of transition ring cavity 7 is logical with transition template more than sealing briquetting 8
The size in the gap between the open circumferential portion of hole, the melten gel 12 for oozing out from the exit end face of the hot nozzle 6 of transition will not continue to penetrate into envelope
Gap between glue laminated block 8 and transition template（As b primary and secondary tag slot in Fig. 2）, enter without being outwards exuded to the second flow distribution plate
4.In addition, hot 6 entrance face of nozzle of transition is provided with flange part 61, transition template is provided with for the insertion of flange part 61 in the end of through hole
Limited impression, the first flow distribution plate 3 is supported in the upper surface of flange part 61, and the lower end face of flange part 61 abuts the bottom of limited impression
Face, the gap between the hot outer wall of nozzle 6 of transition and the inwall of through hole is more than positioned at the lower surface of flange part 61 and limited impression
Gap between bottom surface, the melten gel 12 of such transition ring cavity 7 when flowing up, as the lower surface of flange part 61 is recessed with spacing
Gap size between the bottom surface of groove is less（As a primary and secondary tag slot in Fig. 2）, melten gel 12 will not also be exuded to the first flow distribution plate 3
On, the melten gel 12 for oozing out from the exit end face of the hot nozzle 6 of transition can only be in aggregation in the transition ring cavity 7, in such transition ring cavity 7
Melten gel 12 has no effect on the operation of whole TOP-TIP, and these leak adhesives do not result in the abrasion of mould yet.Treat that mould makes
During with repairing a die after a period of time, the melten gel 12 in this transition ring cavity 7 is removed, and then cause the hot nozzle of transition of the present invention
Even if occurring leak adhesive at 6 also miscellaneous part will not be impacted, and then it is able to ensure that the normal operation of whole system, and energy
The die wear that enough eliminations are caused because of leak adhesive.
Further, the edge part of the exit end face of the hot nozzle 6 of transition offer indent and extend to the hot nozzle 6 of transition outer
The step of wall, the step is connected with transition ring cavity 7, and the step is that ring-shaped step, the so exit end face from the hot nozzle 6 of transition oozes out
Melten gel 12 by the ring-shaped step, can more easily flow in transition ring cavity 7, and the presence of the ring-shaped step, cut
The melten gel 12 that broken continues the path to the gap flowing between the via openings periphery of sealing briquetting 8 and transition template, and then
Play prevention melten gel 12 and be exuded to the second flow distribution plate 4.
Further, closely to press between sealing briquetting 8 and the second flow distribution plate 4（As c primary and secondary tag slot in Fig. 2）, prevent
Only melten gel 12 oozes out from there.
In the present embodiment, as shown in figure 1, the large-scale TOP-TIP of the present invention also includes top board 10, top board 10 with
Be provided with heat-insulated meson 11 between first flow distribution plate 3, the axis of the axis of heat-insulated meson 11 and the hot nozzle 6 of transition on the same line,
Pressure so on top board 10 could be applied to the hot nozzle 6 of transition more effectively by heat-insulated meson 11 and the first flow distribution plate 3, enter
And so that the first flow distribution plate 3 is closely abutted with the hot nozzle 6 of transition.
In the present embodiment, as shown in figure 1, the 3rd template 5 is built-in with the driving means of valve needle motion, compared to existing
In technology, driving means are arranged in top board 10, the installation of inventive drive means without the first flow distribution plate 3 is avoided, also not
Interference can be produced with the first flow distribution plate 3, the motility of Design of Dies be increased, and driving means are arranged on the 3rd template 5,
Also the length of needle is shortened, and then material cost is reduced, also so that needle is difficult flexural deformation, extends mould and use the longevity
Life.In addition, the 3rd template 5 also acts as the effect for intercepting the heat given off by the first flow distribution plate 3 and the second flow distribution plate 4.
Further, the 3rd template 5 is built-in with the cooling water channel for lowering the temperature to driving means.The cooling water channel can have
Effect absorbs the heat given off by the first flow distribution plate 3 and the second flow distribution plate 4, and then reduces the mould temperature of whole mould.
Finally it should be noted that above example is only in order to illustrating technical scheme, rather than the present invention is protected
The restriction of shield scope, although having made to explain to the present invention with reference to preferred embodiment, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (10)
1. the large-scale TOP-TIP of a kind of leak adhesive not interference system operation, including the first template and the second template, described first
Embedded within template has first flow distribution plate affixed with which, and second embedded within template has second flow distribution plate affixed with which, its feature
It is：Transition template is provided between first flow distribution plate and second flow distribution plate, the transition template is provided with through hole, described
Through hole is built-in with the hot nozzle of transition, the transition runner and described second of the sub-runner of first flow distribution plate by the hot nozzle of the transition
The sub-runner connection of flow distribution plate, the entrance face of the hot nozzle of the transition supports first flow distribution plate, the going out of the hot nozzle of transition
Mouthful end face supports second flow distribution plate, and the gap between the hot outer wall of nozzle of the transition and the inwall of the through hole is respectively greater than
Gap between the through hole both ends open peripheral part of the transition template and two flow distribution plates.
2. a kind of leak adhesive according to claim 1 not interference system operation large-scale TOP-TIP, it is characterised in that：Institute
State the sealing briquetting that ring-type is provided between the exit end face of the hot nozzle of transition and second flow distribution plate, the outer wall of the hot nozzle of the transition
And the gap between the inwall of the through hole more than the sealing briquetting via openings peripheral part and the transition template it
Between gap.
3. a kind of leak adhesive according to claim 2 not interference system operation large-scale TOP-TIP, it is characterised in that：Institute
The peripheral portion for stating the exit end face of the hot nozzle of transition offers the step of outer wall that is indent and extending to the hot nozzle of the transition.
4. a kind of leak adhesive according to claim 3 not interference system operation large-scale TOP-TIP, it is characterised in that：Institute
Step is stated for ring-shaped step.
5. a kind of leak adhesive according to claim 1 not interference system operation large-scale TOP-TIP, it is characterised in that：Institute
The arrival end for stating the hot nozzle of transition is provided with flange part, and the transition template is provided with the end of the through hole and inserts for the flange part
Limited impression, the end face of the flange part supports first flow distribution plate, and the other end of the flange part abuts described
The bottom surface of limited impression, the gap between the hot outer wall of nozzle of the transition and the inwall of the through hole is more than the end of the flange part
Gap between the bottom surface of face and the limited impression.
6. the large-scale TOP-TIP of a kind of leak adhesive not interference system operation according to claim 1 or 5, its feature exists
In：Also include top board, between the top board and first flow distribution plate, be provided with heat-insulated meson, the axis of the heat-insulated meson
With the axis of the hot nozzle of the transition on the same line.
7. a kind of leak adhesive according to claim 1 not interference system operation large-scale TOP-TIP, it is characterised in that：Institute
Stating transition template includes the 3rd template between first template and second template.
8. a kind of leak adhesive according to claim 1 not interference system operation large-scale TOP-TIP, it is characterised in that：Institute
Stating transition template includes the 3rd template and the part with the first template of the 3rd template proximate, and the 3rd template is located at institute
State between the first template and second template.
9. a kind of leak adhesive according to claim 8 not interference system operation large-scale TOP-TIP, it is characterised in that：Institute
State the driving means that the 3rd inner formwork has valve needle to move.
10. a kind of leak adhesive according to claim 9 not interference system operation large-scale TOP-TIP, it is characterised in that：
3rd inner formwork has the cooling water channel for lowering the temperature to the driving means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844882.9A CN106426800B (en) | 2016-09-23 | 2016-09-23 | A kind of leak adhesive large-scale hot runner system that interference system is not run |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610844882.9A CN106426800B (en) | 2016-09-23 | 2016-09-23 | A kind of leak adhesive large-scale hot runner system that interference system is not run |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106426800A true CN106426800A (en) | 2017-02-22 |
| CN106426800B CN106426800B (en) | 2019-05-24 |
Family
ID=58167128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610844882.9A Active CN106426800B (en) | 2016-09-23 | 2016-09-23 | A kind of leak adhesive large-scale hot runner system that interference system is not run |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106426800B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405276A (en) * | 2018-04-28 | 2018-08-17 | 上海华鄂工程技术有限公司 | A kind of hot melt melten gel coating production glue spreading apparatus transitional region processing equipment |
| CN113815195A (en) * | 2021-08-27 | 2021-12-21 | 台州市黄岩西诺模具有限公司 | Anti-leakage structure of split injection molding flow distribution plate |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106426800B (en) | 2019-05-24 |
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