CN206416456U - A kind of injection mold with Vacuuming structure - Google Patents
A kind of injection mold with Vacuuming structure Download PDFInfo
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- CN206416456U CN206416456U CN201621479843.5U CN201621479843U CN206416456U CN 206416456 U CN206416456 U CN 206416456U CN 201621479843 U CN201621479843 U CN 201621479843U CN 206416456 U CN206416456 U CN 206416456U
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- running channel
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- injection mold
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Abstract
The utility model describes a kind of injection mold with Vacuuming structure, including solid plate, moving platen, preceding core rod is provided with solid plate, rear core rod is provided with moving platen, preceding core rod and rear core rod closed are into die cavity, running channel is offered on solid plate, running channel is connected through preceding core rod with die cavity, the die cavity outer ring is provided with sealing device, vacuum extractor is provided between sealing device and die cavity, vacuum extractor includes being provided with Non-return air valve on the conduit connected with die cavity and the air exhauster being connected with conduit, conduit.After mould closure, in the presence of vacuum extractor, gas in die cavity will be extracted out by conduit, the setting of Non-return air valve causes the gas in die cavity to be extracted, extraneous air can not flow into die cavity from conduit, the utility model causes whole injection molding to carry out in a vacuum, improves the Forming Quality of lens.The sealing device of die cavity outer ring enhances sealing effectiveness, it is ensured that the good seal at the closure of solid plate and moving platen when vacuumizing.
Description
Technical field
The utility model is related to a kind of injection mold, more particularly to a kind of injection mold with Vacuuming structure.
Background technology
Injection mold is a kind of instrument for producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension
Instrument.Injection mold is made up of dynamic model and cover half two parts, and dynamic model is arranged on the moving die plate of injection (mo(u)lding) machine, and cover half is installed
On the fixed form of injection (mo(u)lding) machine.In injection moulding, dynamic model constitutes running gate system and die cavity with cover half closure, during die sinking
Dynamic model and cover half separate to take out plastic products.
The injection mold prepared for lens is usually the core rod in solid plate and moving platen composition, solid plate and moving platen
The die cavity of product is engaged and obtains, the plastics of fusing are injected shape chamber from cast gate and are filled.After the mold is closed, solid plate and
The die cavity of core rod formation closure in moving platen, can only be communicated by cast gate with the external world, the plastics of fusing from cast gate inject when, pour
Mouthful by plastics in landfills, the air in die cavity can not be escaped, and the air of residual easily produces bubble in compacting or injection moulding process, leads
Cause the Forming Quality of lens not good.
Utility model content
Remaining air in die cavity to solve existing lens injection mold causes the not good defect of lens Forming Quality, this
Utility model spy provide a kind of injection mold with Vacuuming structure.
The technical solution of the utility model is as follows：
Preceding core rod is provided with a kind of injection mold with Vacuuming structure, including solid plate, moving platen, solid plate, is moved
It is provided with rear core rod in template, preceding core rod and rear core rod closed offer running channel, running channel passes through preceding mould into die cavity on solid plate
Core is connected with die cavity, and sealing valve is provided with the cast gate of running channel；The die cavity outer ring is provided with sealing device, sealing device and mould
Vacuum extractor is provided between chamber, vacuum extractor includes the conduit connected with die cavity and the air exhauster being connected with conduit, led
Non-return air valve is provided with pipe.After mould closure, in the presence of vacuum extractor, the gas in die cavity will be extracted out by conduit,
The setting of Non-return air valve causes the gas in die cavity to be extracted, and extraneous air can not flow into die cavity from conduit.Treat die cavity
In gas exhausted after, you can inject melt from running channel, whole injection molding carries out in a vacuum, improve lens into
Type quality.The sealing device of die cavity outer ring enhances sealing effectiveness, it is ensured that when vacuumizing at the closure of solid plate and moving platen
With good sealing.
Further, the sealing valve is the sealing needle that hydraulic cylinder drives.During injection, sealing needle is in opening,
Depart from the sealing to running channel；After the completion of injection, the sealing to running channel can be realized by closing sealing needle.Needle is sealed in this programme
Setting realize the self sealss of mould, it is ensured that when vacuumizing, extraneous air will not enter die cavity from running channel.
As it is of the present utility model preferably, the sealing device include be opened in the closure gasket groove on solid plate lower surface with
And the sealing ring on moving platen is arranged on, sealing ring is interference fitted with closure gasket groove.In this programme, sealing ring and closure gasket groove
Interference fit, sealing ring will be snapped firmly into closure gasket groove, will not deviate from easily, it is to avoid air is from solid plate and moving platen
Enter die cavity influence injection effect at closure.
Further, one end of the sealing ring embedding sealing annular groove is spherical structure, and the bottom of closure gasket groove is offered
The annular arc groove matched with the end ball structure of sealing ring, the design of the structure is effectively improved rubber ring and sealing
The laminating intensity of annular groove, makes the sealing property of die cavity preferable.
For the utility model is better achieved, the material of the sealing ring is neoprene or EP rubbers.
Further, the running channel includes the first running channel, the second running channel being sequentially communicated from top to bottom, the second running channel and mould
Chamber is connected, and the second running channel is taper, and partial cross section product of second running channel away from die cavity is gradually reduced.In this programme, second pours
The local sectional area that road more gets close to die cavity is bigger, after melt flows into the second running channel through the first running channel, because sectional area is increasing,
It is easy to melt quickly to enter in die cavity, reduces flowing time of the melt in running channel.
Further, middle running channel is provided between first running channel, the second running channel, the diameter of middle running channel is less than first
The diameter of running channel.In this programme, melt flows into middle running channel through the first running channel, and the diameter of middle running channel is less than the first running channel
Diameter, melt, which will be pressurized, quickly to be flowed.Melt from middle running channel pour the second running channel when, flow velocity will slow down again so that melt can
Further to knead, the melt molecularly oriented finally flowed into the state of laminar flow in die cavity, die cavity will be weakened, and greatly be carried
The high Forming Quality of lens.
In summary, the beneficial effects of the utility model are：
1st, after mould closure, in the presence of vacuum extractor, the gas in die cavity will be extracted out by conduit, Non-return air valve
Set and the gas in die cavity can only be extracted, extraneous air can not flow into die cavity from conduit.Treat the gas quilt in die cavity
After exhausting, you can inject melt from running channel, whole injection molding is carried out in a vacuum, improves the Forming Quality of lens.Mould
The sealing device of chamber outer ring enhances sealing effectiveness, it is ensured that have well at the closure of solid plate and moving platen when vacuumizing
Sealing.
When the 2nd, being molded, sealing needle is in opening, departs from the sealing to running channel；After the completion of injection, sealing needle is closed
The sealing to running channel can be achieved.The setting of needle is sealed in this programme realizes the self sealss of mould, it is ensured that when vacuumizing
Extraneous air will not enter die cavity from running channel.
3rd, in this programme, sealing ring is interference fitted with closure gasket groove, and sealing ring will be snapped firmly into closure gasket groove,
It will not deviate from easily, it is to avoid air enters die cavity influence injection effect at the closure of solid plate and moving platen.
4th, the one end for stating sealing ring embedding sealing annular groove is spherical structure, and the bottom of closure gasket groove is offered and sealing ring
The annular arc groove that end ball structure matches, the design of the structure is effectively improved fitting for rubber ring and closure gasket groove
Intensity, makes the sealing property of die cavity preferable.
5th, the second running channel more get close to die cavity local sectional area it is bigger, melt through the first running channel flow into the second running channel after, by
It is increasing in sectional area, it is easy to melt quickly to enter in die cavity, reduces flowing time of the melt in running channel.
6th, melt through the first running channel flow into the middle of running channel, the diameter of middle running channel is less than the diameter of the first running channel, melt by
Pressure will quickly flow.Melt from middle running channel pour the second running channel when, flow velocity will slow down again so that melt can be mixed further
Practice, the melt molecularly oriented finally flowed into the state of laminar flow in die cavity, die cavity will be weakened, greatly increase lens into
Type quality.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the injection mold with Vacuuming structure；
Fig. 2 is the structural representation of sealing ring and closure gasket groove；
Fig. 3 is the structural representation of sealing needle；
Parts title wherein corresponding to reference is as follows：Core rod before 1- solid plates, 2- moving platens, 3-, 4- rear molds
Running channel in the middle of core, 5- die cavitys, 6- running channels, the running channels of 61- first, the running channels of 62- second, 63-, 7- sealing devices, 8- conduits, 9- is unidirectional
Air valve, 10- sealing rings, 11- annular arc grooves, 12- sealing valves.
Embodiment
For the utility model is better achieved, below in conjunction with the accompanying drawings and specific embodiment the utility model is done further in detail
Carefully illustrate, but embodiment of the present utility model is not limited to this.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of injection mold with Vacuuming structure, including solid plate 1, moving platen 2, cover half
Rear core rod 4 is provided with core rod 3 before being provided with plate 1, moving platen 2, preceding core rod 3 forms die cavity 5, cover half with rear core rod 4 closure
Running channel 6 is offered on plate 1, running channel 6 is connected through preceding core rod 3 with die cavity 5, and sealing valve 12 is provided with the cast gate of running channel 6；It is described
The outer ring of die cavity 5 is provided with sealing device 7, is provided with vacuum extractor between sealing device 7 and die cavity 5, vacuum extractor include with
Non-return air valve 9 is provided with the conduit 8 of the connection of die cavity 5 and the air exhauster being connected with conduit 8, conduit 8.After mould closure,
In the presence of vacuum extractor, the gas in die cavity will be extracted out by conduit 8, and the setting of Non-return air valve 9 causes the gas in die cavity 5
It can only be extracted, extraneous air can not flow into die cavity 5 from conduit 8.After the gas in die cavity 5 is exhausted, you can from running channel 6
Melt is injected, whole injection molding is carried out in a vacuum, improves the Forming Quality of lens.The sealing device 7 of the outer ring of die cavity 5
Enhance sealing effectiveness, it is ensured that solid plate 1 at the closure of moving platen 2 with having good sealing when vacuumizing.
Further, the sealing valve 12 is the sealing needle that hydraulic cylinder drives.
As it is of the present utility model preferably, the sealing device 7 includes being opened in closure gasket groove on the lower surface of solid plate 1
And the sealing ring 10 on moving platen 2 is arranged on, sealing ring 10 is interference fitted with closure gasket groove.In the present embodiment, sealing ring
10 are interference fitted with closure gasket groove, and sealing ring 10 will be snapped firmly into closure gasket groove, and will not deviate from easily, it is to avoid air is from calmly
Template 1 is with entering die cavity influence injection effect at the closure of moving platen 2.
Further, one end of the embedding sealing annular groove of sealing ring 10 is spherical structure, and the bottom of closure gasket groove is opened up
There is the annular arc groove 11 that the end ball structure with sealing ring 10 matches.The design of the structure is effectively improved rubber ring
With the intensity of fitting of closure gasket groove, make the sealing property of die cavity preferable.
For the utility model is better achieved, the material of the sealing ring 10 is neoprene or EP rubbers.
Further, the running channel 6 includes the first running channel 61, the second running channel 62 being sequentially communicated from top to bottom, and second pours
Road 62 is connected with die cavity 5, and the second running channel 62 is taper, and partial cross section product of second running channel 62 away from die cavity 5 is gradually reduced.At this
In embodiment, the local sectional area that the second running channel 62 more gets close to die cavity 5 is bigger, and melt flows into the second running channel 62 through the first running channel 61
Afterwards, because sectional area is increasing, it is easy to melt quickly to enter in die cavity 5, reduces flowing time of the melt in running channel 6.
Further, middle running channel 63, the diameter of middle running channel 63 are provided between first running channel 61, the second running channel 62
Less than the diameter of the first running channel 61.In the present embodiment, melt flows into middle running channel 63 through the first running channel 61, middle running channel 63
Diameter is less than the diameter of the first running channel 61, and melt, which will be pressurized, quickly to be flowed.Melt from middle running channel 63 pour the second running channel 62 when,
Flow velocity will slow down again so that melt can be kneaded further, the melt finally flowed into the state of laminar flow in die cavity 5, die cavity 5
Molecularly oriented will be weakened, and greatly increase the Forming Quality of lens.
Embodiment 1
Preceding core rod is provided with a kind of injection mold with Vacuuming structure, including solid plate 1, moving platen 2, solid plate 1
3, rear core rod 4 is provided with moving platen 2, preceding core rod 3 forms on die cavity 5, solid plate 1 with rear core rod 4 closure and offers running channel 6,
Running channel 6 is connected through preceding core rod 3 with die cavity 5, and sealing valve 12 is provided with the cast gate of running channel 6；The outer ring of die cavity 5 is provided with close
Seal apparatus 7, is provided with vacuum extractor between sealing device 7 and die cavity 5, vacuum extractor include the conduit 8 that is connected with die cavity 5 with
And the air exhauster being connected with conduit 8, Non-return air valve 9 is provided with conduit 8.
Embodiment 2
The present embodiment is on the basis of embodiment 1, and the sealing valve 12 is the sealing needle that hydraulic cylinder drives.
Embodiment 3
The present embodiment is on the basis of embodiment 1 or embodiment 2, and the sealing device 7 includes being opened in the following table of solid plate 1
Closure gasket groove on face and the sealing ring 10 being arranged on moving platen 2, sealing ring 10 are interference fitted with closure gasket groove.
Embodiment 4
The present embodiment is on the basis of embodiment 3, and one end of the embedding sealing annular groove of sealing ring 10 is spherical structure, close
The bottom of seal ring groove offers the annular arc groove 11 matched with the end ball structure of sealing ring 10.
Embodiment 5
The present embodiment is on the basis of embodiment 3 or embodiment 4 or embodiment 5, and the material of the sealing ring 10 is neoprene
Rubber or EP rubbers.
Embodiment 6
The present embodiment is described to pour on the basis of embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4 or embodiment 5
Road 6 includes the first running channel 61, the second running channel 62 being sequentially communicated from top to bottom, and the second running channel 62 is connected with die cavity 5, the second running channel
62 be taper, and partial cross section product of second running channel 62 away from die cavity 5 is gradually reduced.
Embodiment 7
The present embodiment is provided with middle running channel on the basis of embodiment 6 between first running channel 61, the second running channel 62
63, the diameter of middle running channel 63 is less than the diameter of the first running channel 61.
As described above, the utility model can be realized preferably.
Claims (7)
1. a kind of injection mold with Vacuuming structure, it is characterised in that：Including solid plate (1), moving platen (2), solid plate (1)
Inside it is provided with preceding core rod (3), moving platen (2) and is provided with rear core rod (4), preceding core rod (3) forms die cavity with rear core rod (4) closure
(5) running channel (6), is offered on solid plate (1), running channel (6) is connected through preceding core rod (3) with die cavity (5), the cast gate of running channel (6)
Place is provided with sealing valve (12)；Die cavity (5) outer ring is provided with sealing device (7), is set between sealing device (7) and die cavity (5)
Vacuum extractor is equipped with, vacuum extractor includes the conduit (8) connected with die cavity (5) and the air exhauster being connected with conduit (8),
Non-return air valve (9) is provided with conduit (8).
2. a kind of injection mold with Vacuuming structure according to claim 1, it is characterised in that：The sealing valve (12)
The sealing needle driven for hydraulic cylinder.
3. a kind of injection mold with Vacuuming structure according to claim 1, it is characterised in that：The sealing device
(7) closure gasket groove being opened on solid plate (1) lower surface and the sealing ring (10) being arranged on moving platen (2) are included, it is close
Seal (10) is interference fitted with closure gasket groove.
4. a kind of injection mold with Vacuuming structure according to claim 3, it is characterised in that：The sealing ring (10)
One end of embedding sealing annular groove is spherical structure, and the bottom of closure gasket groove offers the end ball structure phase with sealing ring (10)
The annular arc groove (11) of matching.
5. a kind of injection mold with Vacuuming structure according to claim 3 or 4, it is characterised in that：The sealing ring
(10) material is neoprene or EP rubbers.
6. a kind of injection mold with Vacuuming structure according to claim 1, it is characterised in that：Running channel (6) bag
The first running channel (61) being sequentially communicated from top to bottom, the second running channel (62) are included, the second running channel (62) is connected with die cavity (5), second
Running channel (62) is taper, and partial cross section product of the second running channel (62) away from die cavity (5) is gradually reduced.
7. a kind of injection mold with Vacuuming structure according to claim 6, it is characterised in that：First running channel
(61) middle running channel (63), is provided between the second running channel (62), the diameter of middle running channel (63) is less than the straight of the first running channel (61)
Footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479843.5U CN206416456U (en) | 2016-12-30 | 2016-12-30 | A kind of injection mold with Vacuuming structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479843.5U CN206416456U (en) | 2016-12-30 | 2016-12-30 | A kind of injection mold with Vacuuming structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206416456U true CN206416456U (en) | 2017-08-18 |
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ID=59573203
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621479843.5U Active CN206416456U (en) | 2016-12-30 | 2016-12-30 | A kind of injection mold with Vacuuming structure |
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| Country | Link |
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| CN (1) | CN206416456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179300A (en) * | 2021-11-29 | 2022-03-15 | 葛洪三 | Injection mold and injection molding system |
| CN114179307A (en) * | 2021-11-29 | 2022-03-15 | 葛洪三 | Injection molding method |
-
2016
- 2016-12-30 CN CN201621479843.5U patent/CN206416456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179300A (en) * | 2021-11-29 | 2022-03-15 | 葛洪三 | Injection mold and injection molding system |
| CN114179307A (en) * | 2021-11-29 | 2022-03-15 | 葛洪三 | Injection molding method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: 610000 No.159, Tengfei 2nd Road, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu, China (Sichuan) pilot Free Trade Zone, Chengdu Patentee after: CHENGDU HAN DE SHENG BANG OPTICAL Co.,Ltd. Address before: 610000, No. two, No. 159, Tengfei Economic Development Zone, Shuangliu County Southwest Airlines, Chengdu, Sichuan Patentee before: CHENGDU HAN DE SHENG BANG OPTICAL Co.,Ltd. |