CN107443632A - Injection mold mold insert processing method, mold insert and its fixture for processing - Google Patents
Injection mold mold insert processing method, mold insert and its fixture for processing Download PDFInfo
- Publication number
- CN107443632A CN107443632A CN201710822962.9A CN201710822962A CN107443632A CN 107443632 A CN107443632 A CN 107443632A CN 201710822962 A CN201710822962 A CN 201710822962A CN 107443632 A CN107443632 A CN 107443632A
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- CN
- China
- Prior art keywords
- mold insert
- core
- injection
- injection mold
- mold
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 62
- 239000007924 injection Substances 0.000 title claims abstract description 62
- 238000012545 processing Methods 0.000 title claims abstract description 37
- 238000003672 processing method Methods 0.000 title claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 238000005498 polishing Methods 0.000 claims abstract description 14
- 238000013461 design Methods 0.000 claims description 23
- 239000002699 waste material Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002991 molded plastic Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000000875 corresponding effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000007 visual effect 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- 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
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Abstract
The present invention relates to a kind of injection mold mold insert processing method, mold insert and its fixture for processing, methods described is that the roughing of smooth continuous curve surface is carried out to the top surface of raw material block, it can be completely covered and want the optical surface on injection molding part and have complete cycle fringe region more than needed, the face type of the curved surface is the face type being bonded that can match with the optical surface；By wire cutting by raw material block point pillared core and set portion, core is bumped into after mould finished, then core is bumped into the polishing that set portion carries out core top surface；The fixture includes jig main body, the jig main body is provided with the mounting hole for being used for being bumped into injection mold mold insert, in the state of embedding and injection molding inlaid piece of mould, the top surface of the jig main body is just enclosed in around the top surface of the injection mold mold insert with the shape, and the top surface smooth registration of the top surface of the jig main body and the injection mold mold insert and tangent.The present invention can prevent the turned welt phenomenon in mold insert polishing, can improve injecting products presentation quality.
Description
Technical field
The fixture used the present invention relates to a kind of processing method of injection mold mold insert, mold insert and when processing the mold insert, especially
It is related to the processing method of injection mold mold insert used in a kind of optical surface for being molded heavy wall lens and its fixture used, belongs to car
Lamp injection mold mold insert processing technique field.
Background technology
During Injection Mold Design, it is contemplated that processing facility and cost-effective demand, generally by some special constructions
Such as the injection molding of optical surface can not only facilitate the design of follow-up optical surface to become by being completed by means of insert structure
More, it can realize that different optical patterns structures is replaced with minimum cost, the speed and quality of mould processing can also be improved.
Correspondingly, the requirement on machining accuracy on surface corresponding with the optical surface on mold insert is higher, due to machine finish and turns
The limitation of speed, it is difficult to realize one processing in place of respective surfaces on mold insert, need to be polished in most cases, no matter passing through
Mechanical polishing or artificial polishing can impact to the profile of the respective surfaces of mold insert, such as border corner angle are worn (this
Phenomenon is referred to as " turned welt ").The mold insert being worn using border corner angle, easily there are plastics along mould in follow-up injection moulding process
The phenomenon that gap is overflowed, the presentation quality of injecting products is reduced to a certain extent.
The content of the invention
To overcome drawbacks described above, the invention provides a kind of injection mold mold insert processing method, mold insert and its processing folder
Tool, turned welt phenomenon can be prevented, improve injecting products presentation quality.
The main technical schemes of the present invention have：
A kind of injection mold mold insert processing method, including：
Step (1)：The roughing of smooth continuous curve surface is carried out to the top surface of raw material block, the face type of the curved surface is can be with institute
State the optical surface on the injection mold mold insert injection-moulded plastic part to be molded to match the face type of fitting, and the surface area is more than
The optical surface, the optical surface can be completely covered and have complete cycle fringe region more than needed；
Step (2)：The core of column is isolated from the raw material block by wire cutting, is inlayed as the injection mold
Part, remaining part are referred to as set portion, corresponding with the combination of the top surface in both set portions as mold insert fixture for processing main body, the core
In the curved surface, wherein the top surface of the core corresponds to the optical surface；
Step (3)：The core is bumped into mould by design orientation, the assembly of the core and the mould is carried out
Finishing, the finishing include the finishing of the curved surface carried out to the top surface of the core；
Step (4)：The core is bumped into the set portion by separation front position, and in bottom by the two company of being relatively fixed
Connect, obtain assembly, the polishing of the curved surface is carried out to the top surface of the core on the assembly.
Between the step (1), step (2), vacuum hardening is carried out to the part obtained after the step (1), makes it
Case hardness reaches HRC46~48.
Polishing in the step (4) can be mechanical polishing or hand polish.
Before the roughing of curved surface in the step (1), a vertical through holes are first processed on the raw material block,
The design path of wire cutting of the horizontal level of the vertical through holes in the step (2).
The design path of wire cutting described in the step (2) can be unidirectional closed hoop path.
In the step (2), using the vertical through holes as the starting point of wire cutting, then along the horizontal plane to be set described in distance
The path of meter shortest path is traveled in the design path, then is cut along the design path.
The injection mold mold insert can be the mold insert of the optical surface of shaping heavy wall lens.
A kind of injection mold mold insert, it is using the core made from the processing of above-mentioned injection mold mold insert processing method.
A kind of injection mold mold insert fixture for processing, including jig main body, the jig main body are to use above-mentioned injection mould
Has the set portion made from the processing of mold insert processing method.
The injection mold mold insert fixture for processing can also include base, the jig main body be arranged on the base it
On, by finger setting between the jig main body and base, fixed by screw, the jig main body is provided with blind hole, described
Blind hole be preferably it is big outside aperture in small shoulder hole, its China and foreign countries' sector hole is pin-and-hole, and inner sector hole is waste discharge hole, on the base with institute
State the pin-and-hole that insertion is provided with the corresponding region of mounting hole and the counterbore for mounting screw.
The beneficial effects of the invention are as follows：
The injection mold mold insert processing method is also the processing method of mold insert fixture for processing simultaneously, with it,
A set of work flow can process the injection mold mold insert with mutual cooperation relation simultaneously and polish the fixture of the mold insert
Jig main body.Therefore, when the working surface (i.e. the surface of optical surface on injection molding part) to the mold insert is polished
When, carry out after the mold insert can be bumped into the jig main body, due to the mold insert and the matching relationship of the jig main body, adding
The border corner angle of its working surface can be protected well during injection mold mold insert described in work, no longer cause overlap, very well
Ground solves the problems, such as the turned welt of traditional injection mold mold insert, the presentation quality of injecting products is further enhanced, also because
This accordingly improves the qualification rate of car light.Especially for the situation of the optical surface of shaping heavy wall lens, protection lens are played
The effect of optical boundary, and the jig main body can also when subsequent design changes Reusability, greatly saved system
This is caused, is also fully played the advantage of mold insert.
There is the fixture, the profile of the injection mold mold insert can also be more rich and varied, as long as increasing such guarantor
Protection structure then without worrying mould processing polished precision problem again.
The injection mold mold insert and its fixture for processing are simple in construction, and easy to implement and popularization, applicability are wide.
Brief description of the drawings
Fig. 1 be injection mold mold insert working surface described in roughing before corresponding construction schematic diagram；
Fig. 2 is wire cutting track schematic diagram；
Fig. 3 is the dimensional structure diagram of one embodiment of the jig main body；
Fig. 4 is the dimensional structure diagram of one embodiment of the injection mold mold insert；
Fig. 5 is the profile of one embodiment of the injection mold mold insert fixture for processing；
Fig. 6 is Fig. 5 I partial enlarged drawing；
Fig. 7 is a kind of dimensional structure diagram of heavy wall lens；
Fig. 8 is the heavy wall lens relative position relation schematic diagram that the injection mold mold insert is molded with corresponding mould.
Embodiment
As shown in Fig. 1-4,7,8, the invention discloses a kind of injection mold mold insert processing method, including：
Step (1)：Carry out the roughing of smooth continuous curve surface to the top surface of raw material block 3, the face type of the curved surface is can be with
Optical surface A on the injection mold mold insert injection-moulded plastic part to be molded (such as heavy wall lens 6 in Fig. 7,8) matches patch
The face type of conjunction, and the surface area is more than the area of the optical surface, enables the curved surface that the optical surface is completely covered
And there is complete cycle fringe region more than needed；
Step (2)：The core 1 of column is isolated from the raw material block by the wire of wire cutting disposable one-way, is used as
The injection mold mold insert, remaining part are referred to as set portion 2, as mold insert fixture for processing main body, top surface a and the set of the core
The top surface b in portion combination corresponds to the curved surface, wherein the top surface of the core corresponds exactly to the optical surface；
Step (3)：The core is bumped into mould by design orientation, the assembly of the core and the mould is carried out
Finishing, the finishing include the finishing of the curved surface carried out to the top surface a of the core；
Step (4)：The core is bumped into the set portion by separation front position, and in bottom by the two company of being relatively fixed
Connect, obtain assembly, the polishing of the curved surface is carried out to the top surface of the core on the assembly.
The set portion not only can play a part of protecting optical boundary in new inlaid piece of mould processing, avoid traditional edge
The problem of part easy overlap, the presentation quality of the optical surface of institute's injecting products is improved, improves the qualification rate of car light, can also be rear
Reusability during continuous design alteration, has greatly saved manufacturing cost.
Generally to be heat-treated between the step (1), step (2), concrete technology is vacuum hardening and makes part
Case hardness reaches HRC46~48, to improve the service life of mold insert.Before heat treatment, first processed on raw material block follow-up
The screw hole of fixed installation and the pin-and-hole of preprocessing positioning, after heat treatment, part is heated to have some deformations, now right again
Pin-and-hole carries out secondary finishing, to improve the precision of pin-and-hole.The processing of pin-and-hole, screw hole is completed before generally answering cutting on line.
Polishing in the step (4) can be mechanical polishing or hand polish.
In order to facilitate linear cutter, generally before the roughing of the curved surface in the step (1), first in the raw material
Process a vertical through holes C on block, the design of the wire cutting of the horizontal levels of the vertical through holes in the step (2)
Path.
The design path of wire cutting described in the step (2) can be unidirectional closed hoop path, such as shown in Fig. 2
The unidirectional closed hoop path 4 counterclockwise overlooked under visual angle.The design path and the cross section of the injection mold mold insert
Design profile is consistent.
In the step (2), using the vertical through holes as the starting point of wire cutting, then along the horizontal plane to be set described in distance
The path of meter shortest path is traveled in the design path, is then cut again along the design path.
The injection mold mold insert is preferably the mold insert for the optical surface for being molded heavy wall lens.
Present invention also offers a kind of injection mold mold insert, and it is using above-mentioned injection mold mold insert processing method processing system
The core 1 obtained.The injection mold mold insert is column structure, and its top surface is working surface.
Present invention provides a kind of injection mold mold insert fixture for processing, including jig main body, the jig main body is
Using the set portion 2 made from the processing of above-mentioned injection mold mold insert processing method.
The injection mold mold insert fixture for processing can also include base 5, as shown in Figure 5,6, the jig main body peace
On the base, positioned by pin 8 between the jig main body and base, fixed by screw 7.The mold insert installation
When on the fixture, in addition to by the positioning of the jig main body, base to it, also to be positioned by pin 9, and pass through spiral shell
Nail 10 is fixedly connected with the base.Correspondingly, blind hole and screw hole, institute will be provided with the jig main body and the mold insert
State blind hole be it is big outside aperture in small shoulder hole, its China and foreign countries' sector hole be pin-and-hole, respectively with the interference fit of pin 8 and 9, inner sector hole 12
For waste discharge hole, waste discharge hole machines in preprocessing pin-and-hole, when carrying out secondary operation to pin-and-hole after heat treatment, waste discharge
The presence in hole causes the cutting output of pin-and-hole secondary operation to reduce, and machine tool excessive wear or fracture is avoided, additionally, due to waste discharge
Hole depth is more than the depth of actual processing pin-and-hole, and headroom can store chip, advantageously ensure that smooth processing.
The pin-and-hole of insertion corresponding with pin 9 is provided with the base in the region corresponding with the mounting hole and for pacifying
The counterbore of cartridge screw 10, other regions are then provided with the pin-and-hole of the insertion corresponding with pin 8 and the counterbore for mounting screw 7.
During polishing, after each correlated parts are fixedly connected by Fig. 5, the fixture can be fixed on by lathe by Machine tool pressure plate 11
Carried out on upper or workbench.
Below by taking Fig. 1-4 as an example, completely illustrate the process of the injection mold mold insert and its fixture：
Bar is chosen as this mold insert and the blank of fixture, a hole C is processed on its top face in advance before cutting, for after
Silk thread passes through during continuous wire cutting.Now mold insert 1 and jig main body 2 still fall within an overall raw material block 3, then to raw material block
3 all structures (including top surface, screw hole) carry out roughing, and the top surface contains top surface (the i.e. worksheet of the mold insert in future
Top surface (the i.e. protection face b), therefore thick while the roughing is equivalent to the working surface and protection face of face a) and fixture
Processing, raw material block 3 is fixedly connected with base 5 during roughing, and base 5, which is then fixed on lathe, carries out machining.Finish again
Pin-and-hole (hole containing waste discharge).Then vacuum hardening heat treatment is carried out to the part after roughing, after the completion of by wire cutting by its point
It is cut into the angle main body 2 of the injection mold mold insert 1 and the injection mold mold insert fixture for processing.Wire cutting direction can edge
The direction of arrow shown in Fig. 2, it is mobile counterclockwise using C points as starting point.After cutting, mold insert 1 is bumped into mould and merges essence
Processing.It is high, it is necessary to be processed by shot blasting for mold insert top surface surface quality requirements.Now, the mold insert is removed from the molds,
The mold insert is embedded in the mounting hole 2-1 of the jig main body, because curved surface b and curved surface a are tangent, curved surface a during polishing
Edge corner angle will not be worn, therefore can improve the surface quality of injecting products to a certain extent.
Using the injection mold mold insert and its fixture for processing, its working surface when processing the injection mold mold insert
Border corner angle can be protected well, therefore solve the problems, such as the turned welt of traditional injection mold mold insert, produce injection
The presentation quality of product is improved.And the fixture can also when subsequent design changes Reusability, greatly save
Manufacturing cost.
Claims (10)
- A kind of 1. injection mold mold insert processing method, it is characterised in that：Including：Step (1)：The roughing of smooth continuous curve surface is carried out to the top surface of raw material block, the face type of the curved surface is can be with the note Optical surface on the mould mold insert injection-moulded plastic part to be molded matches the face type of fitting, and the surface area be more than it is described Optical surface, the optical surface can be completely covered and have complete cycle fringe region more than needed；Step (2)：The core of column is isolated from the raw material block by wire cutting, it is remaining as the injection mold mold insert Lower part is referred to as set portion, and as mold insert fixture for processing main body, the combination of the core and the top surface in both set portions corresponds to institute Curved surface is stated, wherein the top surface of the core corresponds to the optical surface；Step (3)：The core is bumped into mould by design orientation, finishing is carried out to the assembly of the core and the mould Work, the finishing include the finishing of the curved surface carried out to the top surface of the core；Step (4)：The core is bumped into the set portion by separation front position, and the two is relatively fixed connection in bottom, is obtained To assembly, the polishing of the curved surface is carried out to the top surface of the core on the assembly.
- 2. injection mold mold insert processing method as claimed in claim 1, it is characterised in that：In the step (1), step (2) Between, vacuum hardening is carried out to the part obtained after the step (1), its case hardness is reached HRC46~48.
- 3. injection mold mold insert processing method as claimed in claim 2, it is characterised in that：It is finished in the step (4) Mechanical polishing or hand polish.
- 4. injection mold mold insert processing method as claimed in claim 3, it is characterised in that：Curved surface in the step (1) Roughing before, first a vertical through holes are processed on the raw material block, the horizontal level of the vertical through holes is close to institute State the design path of the wire cutting in step (2).
- 5. injection mold mold insert processing method as claimed in claim 4, it is characterised in that：Line is cut described in the step (2) The design path cut is unidirectional closed hoop path.
- 6. injection mold mold insert processing method as claimed in claim 5, it is characterised in that：In the step (2), with described perpendicular Starting point to through hole as wire cutting, then along the horizontal plane to travel to the design apart from the most short path of the design path On path, then cut along the design path.
- 7. the injection mold mold insert processing method as described in claim 1,2,3,4,5 or 6, it is characterised in that：The injection mould Have mold insert of the mold insert for the optical surface of shaping heavy wall lens.
- A kind of 8. injection mold mold insert, it is characterised in that：It is using the injection as described in claim 1,2,3,4,5,6 or 7 The core made from the processing of inlaid piece of mould processing method.
- A kind of 9. injection mold mold insert fixture for processing, it is characterised in that：Including jig main body, the jig main body is using such as The set portion made from injection mold mold insert processing method processing described in claim 1,2,3,4,5,6 or 7.
- 10. injection mold mold insert fixture for processing as claimed in claim 9, it is characterised in that：Also include base, the fixture Main body is arranged on the base, by finger setting between the jig main body and base, is fixed by screw, the fixture Main body is provided with blind hole, the blind hole be outside aperture greatly in small shoulder hole, its China and foreign countries' sector hole is pin-and-hole, and inner sector hole is waste discharge Hole, the pin-and-hole of insertion and the counterbore for mounting screw are provided with the base in the region corresponding with the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710822962.9A CN107443632B (en) | 2017-09-13 | 2017-09-13 | Injection mold insert machining method, insert and clamp for machining insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710822962.9A CN107443632B (en) | 2017-09-13 | 2017-09-13 | Injection mold insert machining method, insert and clamp for machining insert |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107443632A true CN107443632A (en) | 2017-12-08 |
| CN107443632B CN107443632B (en) | 2024-01-26 |
Family
ID=60495337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710822962.9A Active CN107443632B (en) | 2017-09-13 | 2017-09-13 | Injection mold insert machining method, insert and clamp for machining insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107443632B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312423A (en) * | 2018-05-11 | 2018-07-24 | 珠海格力精密模具有限公司 | Mold and injection molding machine for filter screen production |
| CN110406036A (en) * | 2019-08-29 | 2019-11-05 | 东莞晶彩光学有限公司 | A kind of optics mode of polygon mirror |
| CN110900134A (en) * | 2019-12-19 | 2020-03-24 | 佛山市成阳正大模具五金塑料有限公司 | Method for processing hardened cold stamping die steel of automobile |
| CN111531779A (en) * | 2020-05-17 | 2020-08-14 | 惠州市恺琞实业有限公司 | Injection molding method for scooter plate body and scooter |
| CN114193102A (en) * | 2021-12-20 | 2022-03-18 | 芜湖兆合汽车零部件科技有限公司 | Production process of high-strength expansion fastener |
| CN114918615A (en) * | 2022-05-13 | 2022-08-19 | 浙江百康光学股份有限公司 | Preparation method of optical insert |
| CN115041933A (en) * | 2022-05-13 | 2022-09-13 | 中国第一汽车股份有限公司 | Combined machining method for step insert |
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| CN106239835A (en) * | 2016-08-12 | 2016-12-21 | 东江模具（深圳）有限公司 | The bright finish mold insert of a kind of injection mold and manufacture method thereof |
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| CN106239835A (en) * | 2016-08-12 | 2016-12-21 | 东江模具（深圳）有限公司 | The bright finish mold insert of a kind of injection mold and manufacture method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312423A (en) * | 2018-05-11 | 2018-07-24 | 珠海格力精密模具有限公司 | Mold and injection molding machine for filter screen production |
| CN108312423B (en) * | 2018-05-11 | 2023-12-15 | 珠海格力精密模具有限公司 | A mould and injection molding machine for filter screen production |
| CN110406036A (en) * | 2019-08-29 | 2019-11-05 | 东莞晶彩光学有限公司 | A kind of optics mode of polygon mirror |
| CN110900134A (en) * | 2019-12-19 | 2020-03-24 | 佛山市成阳正大模具五金塑料有限公司 | Method for processing hardened cold stamping die steel of automobile |
| CN111531779A (en) * | 2020-05-17 | 2020-08-14 | 惠州市恺琞实业有限公司 | Injection molding method for scooter plate body and scooter |
| CN114193102A (en) * | 2021-12-20 | 2022-03-18 | 芜湖兆合汽车零部件科技有限公司 | Production process of high-strength expansion fastener |
| CN114918615A (en) * | 2022-05-13 | 2022-08-19 | 浙江百康光学股份有限公司 | Preparation method of optical insert |
| CN115041933A (en) * | 2022-05-13 | 2022-09-13 | 中国第一汽车股份有限公司 | Combined machining method for step insert |
| CN115041933B (en) * | 2022-05-13 | 2023-09-26 | 中国第一汽车股份有限公司 | Combined machining method for step insert |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107443632B (en) | 2024-01-26 |
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