CN208896388U - Mold is used in the injection molding of heavy wall lens - Google Patents
Mold is used in the injection molding of heavy wall lens Download PDFInfo
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- CN208896388U CN208896388U CN201821185604.8U CN201821185604U CN208896388U CN 208896388 U CN208896388 U CN 208896388U CN 201821185604 U CN201821185604 U CN 201821185604U CN 208896388 U CN208896388 U CN 208896388U
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- Prior art keywords
- injection molding
- injection
- die cavities
- chamber
- heavy wall
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 81
- 238000001816 cooling Methods 0.000 claims abstract description 64
- 238000002347 injection Methods 0.000 claims abstract description 57
- 239000007924 injection Substances 0.000 claims abstract description 57
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 23
- 239000000047 product Substances 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000004417 polycarbonate Substances 0.000 description 5
- 210000002615 epidermis Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a kind of heavy wall lens injection molding molds, it is rotating disc type a mould with multi-cavities, it which is provided with each injection die cavities of tactic realization n times type injection molding, an independent cooling type chamber is correspondingly provided with after each injection die cavities being wherein molded from the 1st time to the n-th -2 times, n is natural number and n >=4, all models chamber is arranged successively according to circumferencial direction, each injection die cavities for realizing the injection molding of n times type and the cooling type chamber corresponding with these injection die cavities have two sets, the injection die cavities and cooling type chamber in every set occupy a half-circle area on mold, homogeneous injection die cavities are mutually 180 degree arrangement in two sets, cooling type chamber corresponding to homogeneous injection die cavities is also mutually 180 degree arrangement in two sets.Heavy wall lens are molded using the utility model, injection cycle is short, and is molded high-quality.
Description
Technical field
The utility model relates to a kind of injection molds more particularly to a kind of for being molded a multi-cavity mold mould of thick-walled parts
Tool, can be used for the injection molding of heavy wall lens in car light.
Background technique
Based on the requirement of car light Weight control, the loss of weight of car light parts becomes most important method.Wherein, with PC material
(polycarbonate plastic) replaces the optical component energy of the complex geometries such as traditional glass manufacture lens, light guide and reflecting mirror
Enough mitigate the weight of car light 50%, therefore becomes more feasible scheme.By taking lens as an example, the thickness of traditional PC material
It is typically only 2.5mm or so, and the lens of the PC material in headlamp are heavy section casting, it is 40 that product size, which is normally controlled in length,
~60mm, width are 40~60mm, with a thickness of 25~32mm, the close tradition PC part thickness of the thickness of heavy wall lens thick
10 times, the two differs greatly.It is at present usually to be classified as upper, middle and lower in a thickness direction to such heavy wall lens
Three layers by several times injection molding complete, correspondingly, on same rotating disc type injection molding machine, dispensable mould, quadratic form and three times are set on mold
The type chamber of type has corresponded to three stations, has been spaced 120 degree of central angles between every two station.
Since the thickness of middle layer is still thicker, needing to stand cooling about 20 minutes or so after injection molding can just be gone to down
One station is molded next time, therefore single products injection molding is completed to need 20-30 minutes, and injection cycle is too long, production efficiency
It is low.
Utility model content
The utility model is intended to provide a kind of heavy wall lens injection molding mold, and injection cycle is short, and is molded high-quality.
The main technical schemes of the utility model have:
A kind of heavy wall lens injection molding mold, is rotating disc type a mould with multi-cavities, which is provided with tactic realization n
Each injection die cavities of secondary type injection molding, wherein being correspondingly provided with one after each injection die cavities being molded from the 1st time to the n-th -2 times
Independent cooling type chamber, n are natural number and n >=4, and all models chamber is arranged successively on same circumferencial direction.
All models chamber is preferably in equal central angles regular distribution.
Further, the heavy wall lens injection molding be preferably provided on mold two sets for realizing n times type injection molding described in
Each injection die cavities and the cooling type chamber corresponding with these injection die cavities, and the injection die cavities and cooling type in every set
Chamber occupies a half-circle area on mold, and homogeneous injection die cavities are mutually 180 degree arrangement, homogeneous injection die cavities institute in two sets in two sets
Corresponding cooling type chamber is also mutually 180 degree arrangement.
N is preferably 4, i.e., every set type chamber includes the first injection die cavities, the second injection die cavities, third injection die cavities and the 4th note
Plastotype chamber, further includes the first cooling type chamber and the second cooling type chamber, and the first cooling type chamber is located at the first injection die cavities and the second note
Between plastotype chamber, the second cooling type chamber is between the second injection die cavities and third injection die cavities.
30 degree of central angles are spaced in all models chamber between any two.
The heavy wall lens injection molding mold includes model frame, dynamic model frame, central plate, and it is several fixed that the model frame is equipped with
Mould insert, the fixed die insert are uniformly distributed on the same circumference, and the dynamic model frame is equipped with several moving die inserts, the dynamic model
Insert is uniformly distributed on the same circumference, and is corresponded with the fixed die insert, under molding state, a fixed die insert and one
A moving die insert surrounds the type chamber of a corresponding station, is equipped at the back center of the central plate for the rotation with injection molding machine
The interface structure that axis is fixedly and coaxially connected.
The heavy wall lens injection molding mold further includes bottom plate, dynamic model square iron and ejector retainner plate, the pairs of dynamic model square iron
Be supported on the edge between the dynamic model frame and the bottom plate, and the relatively fixed connection of three, the bottom plate, ejector retainner plate and
The center through hole of the rotary shaft for wearing injection molding machine is equipped on dynamic model frame.
It can respectively be symmetrically arranged with a pair of of die cavity on each fixed die insert and moving die insert, be respectively used to form a set of
The two pieces product of symmetrical configuration in product, a pair of die cavity is located at the same Radius side of framed plate face where it under installation condition
Upwards.
The beneficial effects of the utility model are:
Injection molding in the utility model for single set heavy wall lens is provided with the type chamber of no less than four times injection moldings, and except most
Independent cooling type chamber is respectively set after each injection die cavities except injection die cavities twice afterwards, not only realizes heavy wall lens
The layering of core is molded, and primary macrocyclic cooling is also assigned to first injection molding station, on rear cooling station the two stations
It is continuously finished, on the one hand highly shortened cooling time, so that production efficiency is improved 9-10 times, on the other hand, also significantly improve
Injection molding quality.
Whole type chambers of two sets of heavy wall lens are arranged in the utility model on same mold, and make every set heavy wall lens
Whole type chambers occupy a half-circle area on mold, and the phase homotype chamber of two sets of heavy wall lens is mutually 180 degree arrangement, when injection molding, phase
The injection molding of same layer is remained on the same diameter line of mold and is carried out on the opposite symmetrical position in the center of circle, to be conducive to
The control of size when injection molding, therefore it is higher to be molded precision.
Detailed description of the invention
Fig. 1 is the type chamber arrangement schematic diagram of one embodiment of the utility model；
Fig. 2 is rotation sectional cross section schematic diagram of the one embodiment of the utility model in certain two diametrical direction；
The hierarchical structure of product layering injection molding divides signal when Fig. 3 is the mold injection heavy wall lens using the utility model
Figure.
Specific embodiment
The utility model discloses a kind of heavy wall lens injection molding molds, are rotating disc type a multi-cavity mold as shown in Figure 1, 2
Mold which is provided with each injection die cavities of tactic realization n times type injection molding, wherein what is be molded from the 1st time to the n-th -2 times is each
An independent cooling type chamber is correspondingly provided with after a injection die cavities, n is natural number and n >=4, and all models chamber is in same circumference
It is arranged successively on direction.The cooling type chamber is only used for standing workpiece and is cooled down, air-cooled and water cooling.
(n-1)th injection molding and n-th injection molding are respectively used to be molded the layer III and upper epidermis of heavy wall lens shown in Fig. 3
IV, remaining Multi-step injection molding forms the cores of heavy wall lens for successively injection molding from inside to outside, i.e., layer III and upper epidermis IV it
Outer part, when the injection molding number of plies of heavy wall lens as shown in Figure 3 carries out layering injection molding, the core refers to outer layer II and internal layer
Ⅰ.Certainly, core is segmented into more layers and is molded, and no matter core segment how many layer are molded, and always wraps completely compared with outer layer
Wrap up in adjacent relatively internal layer.
Guarantee the final size precision of heavy wall lens with the upper epidermis and layer being finally molded, and makes up and be molded before this
The deficiency of the core of completion, therefore suitably upper epidermis and layer can be divided thinner, in favor of final quality control
System.Remaining core segment multilayer is successively molded from the inside to the outside, is molded compared to traditional core one piece, single injection molding
Partial thickness substantially reduces, and is obviously shortened single layer moulding section cooling time, even core each layer cooling time
Summation also much smaller than traditional core one piece injection molding cooling time, at the same time, due to can be in relatively compared with outer layer
Layer realizes feeding, therefore the design compared with internal layer can also shorten cooling time to a certain extent, such as foreshorten to original 67
At, therefore can further shorten total cooling time, improve production efficiency.In addition, core layer is molded, single layer moulding section
Thickness is thinning, and injection surface is fuller, and defect is reduced, and the quality of production is improved significantly.
Another of the utility model is unique in that after each injection die cavities being molded from the 1st time to the n-th -2 times
It is correspondingly provided with an independent cooling type chamber, for being provided which an independence for each layer of injection molding of the core from inside to outside
Cooling station carry out standing cooling.Product can stop the shorter time in injection molding station and turn after the injection molding of single single layer
Continue to cool down to cooling station standing, be equivalent to by primary macrocyclic cooling be assigned to first injection molding station, rear cooling station this
Carry out relay completion on two stations, in two stations after corresponding cooling total time being injection time, dwell time and be molded
The upper summation for standing the cooling time.The duration that workpiece occupies a station significantly shortens, and when workpiece is gone to by injection molding station
After cooling station, the injection molding station emptied can carry out the injection molding of the equivalent layer of next product, therefore substantially increase production
Efficiency.Core, which is divided into how many layer, to be molded, and how many a cooling type chambers are just arranged in the heavy wall lens injection molding mold.
In general, thick product, which needs longer cooling time, just can guarantee that filling is full, mitigates and inhale flat defect.If using passing
System technique, for thicker product, in order to obtain better quality, when injection molding, just needs to reserve longer cooling time,
Production efficiency will be very low.And the mold of the utility model is used, total cooling time can be distributed on multiple stations, i.e.,
Keep product thicker, the time actually occupied to cooling completion is also very short, therefore still is able to guarantee higher production efficiency.
For the heavy wall lens of 25-32mm thickness, 20-30 can about be produced per hour by implementing injection molding using the utility model
Set is probably traditional 10 times.
All models chamber is preferably in equal central angles annular spread.
The heavy wall lens injection molding be preferably provided on mold two sets for realizing n times type injection molding each injection die cavities
And the cooling type chamber corresponding with part injection type chamber, the injection die cavities and cooling type chamber in every set occupy on mold
One half-circle area, homogeneous injection die cavities are mutually 180 degree arrangement in two sets, cooling type corresponding to homogeneous injection die cavities in two sets
Chamber is also mutually 180 degree arrangement.That is two sets of type chambers are arranged on mold in 180 degree rotational symmetry mode, and two sets of type chambers are end to end
It is arranged in an entire annular, this arrangement mode is on mold compared to traditional dispensable mould, quadratic form and cubic form type chamber
The mode of herringbone arrangement, the injection molding of the identical layer of heavy wall lens products remains on the same diameter line of mold and phase
To carrying out on the symmetrical position in the center of circle, be conducive to the control of size when injection molding, injection molding precision is higher.
In the present embodiment, n=4, i.e., every set type chamber includes the first injection die cavities I1, the second injection die cavities I3, third injection molding
Type chamber I5 and the 4th injection die cavities I6, further includes the first cooling type chamber C2 and the second cooling type chamber C4, and the first cooling type chamber is located at
Between first injection die cavities and the second injection die cavities, for the cooling of internal layer I, the second cooling type chamber be located at the second injection die cavities with
Between third injection die cavities, it is mainly used for the cooling of outer layer II.This type chamber arrangement mode is relative to traditional arrangement mode, mould
The cooling of more a cycles on tool, the production cycle of entire product can but be reduced to 1.5-2.5 minutes.
30 degree of central angles are preferably spaced in all models chamber between any two.
The heavy wall lens injection molding mold includes model frame 4, dynamic model frame 3, central plate 6, if the model frame is equipped with
Dry fixed die insert 8, the fixed die insert are uniformly distributed on the same circumference, and the dynamic model frame is equipped with several moving die inserts 7, institute
It states moving die insert to be uniformly distributed on the same circumference, and is corresponded with the fixed die insert.Under molding state, a cover half edge
Block and a moving die insert surround the type chamber of a corresponding station.It is equipped with and is used for and injection molding machine at the back center of the central plate
The interface structure that is fixedly and coaxially connected of rotary shaft 9.It is uniformly distributed on so-called same circumference and is primarily referred to as be spaced central angle
It is equal.
When work, the central plate is fixedly connected with the overhanging end of the rotary shaft, and the rotary shaft drives the center
Plate is moved forward and backward and indexing rotation.The central plate is equivalent to mechanical arm, is responsible for from a station completing the process the station
Semi-finished product are transferred to next station.Under molding state, the two-arm of central plate is largely embedded in dynamic model frame.
It after product dispensable mould injection formed, is opened (dynamic model frame is retreated with moving die insert), rotary shaft drives central plate to advance
It is detached from dynamic model frame, product ejection, product is stayed on the central plate by location structure thereon, rotary shaft of the central plate in injection molding machine
Drive under rotate, product, which follows, rotates to first cooling station, and under the drive of rotary shaft, central plate is primary with product
Type returns to dynamic model side, molding, and workpiece, which is stood, carries out cooling for the first time, and after being opened again, central plate advances, the first cooling station
Workpiece eject and keep on central plate, workpiece with central plate rotate, retreat reach second injection molding station, molding, carry out two
Secondary type injection molding, so continues, until the process of the last one station is completed, die sinking, product ejection, pickup.
When product rotates to first cooling station from first injection molding station, original place is in first cooling station, second
A injection molding station, second cooling station workpiece then rotate to second injection molding station, second cooling station, third respectively
A injection molding station, and so on, after molding, each station is performed simultaneously the process content of this station, therefore follows from first job
Ring terminates to start, and be opened has one/sleeve forming product to complete the process every time leaves mold.
The heavy wall lens injection molding mold further includes bottom plate 1, dynamic model square iron 2 and ejector retainner plate 5, the pairs of dynamic model side
Iron is supported on the edge between the dynamic model frame and the bottom plate, and the relatively fixed connection of three.When work, the bottom plate
It is fixedly connected with the dynamic mould fixing plate of injection molding machine, the model frame is relatively fixed in the cover half fixed plate of injection molding machine, is being molded
Under the action of machine mold closing mechanism, it is past that dynamic model (including the bottom plate, dynamic model square iron, dynamic model frame, central plate, moving die insert) does straight line
Multiple movement.The center through hole of the rotary shaft for wearing injection molding machine is equipped on the bottom plate, ejector retainner plate and dynamic model frame.Rotary shaft
It can make freely to move axially in the center through hole.The rotary shaft of injection molding machine passes through the center through hole, and front end and central plate are solid
Fixed connection, rotary shaft rotation drive central plate and then product are driven to be transferred to next station from a job.The central plate
On interface structure in rearwardly outer gibbosity, when molding in the center through hole.
The type chamber of one station may include symmetrically arranged two die cavitys, i.e., each fixed die insert and moving die insert
On be respectively symmetrically arranged with a pair of of die cavity, be respectively used in molding left and right car light heavy wall lens in pairs, a pair of mould under installation condition
Where chamber is located at it on same radial direction of framed plate face, the two interval is arranged and is connected through runner.
Claims (8)
1. a kind of heavy wall lens injection molding mold, it is characterised in that: it is rotating disc type a mould with multi-cavities, which is provided with sequence and arranges
Each injection die cavities of the realization n times type injection molding of column, wherein right after each injection die cavities being molded from the 1st time to the n-th -2 times
It should be equipped with an independent cooling type chamber, n is natural number and n >=4, and all models chamber is arranged successively on same circumferencial direction.
2. heavy wall lens injection molding mold as described in claim 1, it is characterised in that: all models chamber is in wait central angles rule point
Cloth.
3. heavy wall lens injection molding mold as claimed in claim 2, it is characterised in that: which is provided with two sets for realizing n times
Each injection die cavities of type injection molding and the cooling type chamber corresponding with these injection die cavities, the injection molding in every set
Chamber and cooling type chamber occupy a half-circle area on mold, and homogeneous injection die cavities are mutually 180 degree arrangement, homogeneous in two sets in two sets
Cooling type chamber corresponding to injection die cavities is also mutually 180 degree arrangement.
4. heavy wall lens injection molding mold as claimed in claim 3, it is characterised in that: n=4, every set type chamber include the first note
Plastotype chamber, the second injection die cavities, third injection die cavities and the 4th injection die cavities further include the first cooling type chamber and the second cooling type
Chamber, for the first cooling type chamber between the first injection die cavities and the second injection die cavities, the second cooling type chamber is located at the second injection molding
Between chamber and third injection die cavities.
5. heavy wall lens injection molding mold as claimed in claim 4, it is characterised in that: be spaced 30 between any two in all models chamber
Spend central angle.
6. the heavy wall lens injection molding mold as described in claim 1,2,3,4 or 5, it is characterised in that: including model frame, dynamic model
Frame, central plate, the model frame are equipped with several fixed die inserts, and the fixed die insert is uniformly distributed on the same circumference, described
Dynamic model frame is equipped with several moving die inserts, and the moving die insert is uniformly distributed on the same circumference, and with the fixed die insert one
One is corresponding, and under molding state, a fixed die insert and a moving die insert surround the type chamber for corresponding to a station, the central plate
Back center at be equipped with the interface structure that is fixedly connected for the concentric rotation axis with injection molding machine.
7. heavy wall lens injection molding mold as claimed in claim 6, it is characterised in that: further include bottom plate, dynamic model square iron and top
Needle plate, the pairs of dynamic model square iron is supported on the edge between the dynamic model frame and the bottom plate, and three is relatively solid
It is fixed to connect, the center through hole of the rotary shaft for wearing injection molding machine is equipped on the bottom plate, ejector retainner plate and dynamic model frame.
8. heavy wall lens injection molding mold as claimed in claim 7, it is characterised in that: each fixed die insert and dynamic model edge
It is respectively symmetrically arranged with a pair of of die cavity on block, is respectively used to form the two pieces product of the symmetrical configuration in a set of product, installation condition
Where lower a pair of die cavity is located at it on same radial direction of framed plate face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821185604.8U CN208896388U (en) | 2018-07-25 | 2018-07-25 | Mold is used in the injection molding of heavy wall lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821185604.8U CN208896388U (en) | 2018-07-25 | 2018-07-25 | Mold is used in the injection molding of heavy wall lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208896388U true CN208896388U (en) | 2019-05-24 |
Family
ID=66568033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821185604.8U Expired - Fee Related CN208896388U (en) | 2018-07-25 | 2018-07-25 | Mold is used in the injection molding of heavy wall lens |
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| CN (1) | CN208896388U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576576A (en) * | 2019-10-21 | 2019-12-17 | 华域视觉科技(上海)有限公司 | Mold with conformal water cooling structure |
| CN113997497A (en) * | 2021-10-29 | 2022-02-01 | 广东烨嘉光电科技股份有限公司 | Multi-station multi-injection thick-wall lens injection mold |
| CN116039009A (en) * | 2023-02-23 | 2023-05-02 | 华域视觉科技(上海)有限公司 | Injection mold and injection molding method |
| CN116141586A (en) * | 2023-02-23 | 2023-05-23 | 华域视觉科技(上海)有限公司 | Injection mold and injection method thereof |
| CN116198086A (en) * | 2023-02-23 | 2023-06-02 | 华域视觉科技(上海)有限公司 | Compression molding injection mold and injection molding process |
-
2018
- 2018-07-25 CN CN201821185604.8U patent/CN208896388U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576576A (en) * | 2019-10-21 | 2019-12-17 | 华域视觉科技(上海)有限公司 | Mold with conformal water cooling structure |
| CN113997497A (en) * | 2021-10-29 | 2022-02-01 | 广东烨嘉光电科技股份有限公司 | Multi-station multi-injection thick-wall lens injection mold |
| CN116039009A (en) * | 2023-02-23 | 2023-05-02 | 华域视觉科技(上海)有限公司 | Injection mold and injection molding method |
| CN116141586A (en) * | 2023-02-23 | 2023-05-23 | 华域视觉科技(上海)有限公司 | Injection mold and injection method thereof |
| CN116198086A (en) * | 2023-02-23 | 2023-06-02 | 华域视觉科技(上海)有限公司 | Compression molding injection mold and injection molding process |
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| CF01 | Termination of patent right due to non-payment of annual fee |