CN108748865A - A kind of hardware insert injection mold - Google Patents
A kind of hardware insert injection mold Download PDFInfo
- Publication number
- CN108748865A CN108748865A CN201810885651.1A CN201810885651A CN108748865A CN 108748865 A CN108748865 A CN 108748865A CN 201810885651 A CN201810885651 A CN 201810885651A CN 108748865 A CN108748865 A CN 108748865A
- Authority
- CN
- China
- Prior art keywords
- hardware insert
- thimble
- hardware
- insert
- injection mold
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Classifications
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- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of hardware insert injection mold, including front cavity, rear cavity and Dan Zhen mechanisms, Dan Zhen mechanisms include thimble and pressure assembly, thimble movably runs through front cavity, rear cavity is towards being provided with magnet mold insert in the groove of front cavity, the adsorbable hardware insert of magnet mold insert, the abutment end of thimble can be pressed on hardware insert, in precompressed position, it is precompressed active force that abutment end, which is pressed on the active force on hardware insert, in compacted position, pressure assembly is connect with thimble, it is clamping force that abutment end, which is pressed on the active force on hardware insert, precompressed active force is less than clamping force, front cavity precompressed position ratio in compacted position on open mold direction further from rear cavity.Using the abutment end of magnet mold insert and thimble to the precompressed active force and clamping force of hardware insert, make hardware insert accurate positioning, improve the firmness and stability of fixed hardware insert, and the structure of injection mold is simple, formed precision is high, and production efficiency is high.
Description
Technical field
The present invention relates to injection molding production technical fields, more particularly, to a kind of hardware insert injection mold.
Background technology
Injection mold is a kind of tool producing plasthetics, is referred specifically to the plastics of heated thawing by the high injection of injection molding machine
Enter die cavity, after cooling and solidifying, obtains formed products.Wherein, the injection forming mold of embedded handware, plastic cement is embedded in by handware
Centre, and realize one-pass molding, handware is whole or major part cannot be exposed.
Existing hardware insert injection mold, it is desirable that hardware insert must have location hole, be coordinated using mold insert and location hole,
To position and fix to hardware insert, the molding of product is then realized.If hardware insert needs part exposed, hardware is utilized
Location hole on inserts is difficult to be accurately controlled hardware insert exposed size when being positioned, and product after molding easy tos produce
Burr influences function, and must offer location hole on hardware insert, increases production process.
In addition, when hardware insert does not have location hole, it is molded to position hardware insert in injection mold, only
Hardware insert can be pushed down by spill spin block, then carry out molding fixation again, finally exited spill spin block and carry out formed product.This five
The positioning method of golden inserts is only suitable for the insert molding not high to product requirement, and spill spin block will be controlled by gear, complicated,
The manufacturing cost of injection mold is relatively high, and difficult in maintenance.Also, hardware insert is easy dislocation or is fallen in being fitted into mold process
It falls, pressing mold is caused to lead to burn failure.
Invention content
In order to realize that the main object of the present invention, the present invention provide a kind of accurate positioning simple in structure, to hardware insert
And the hardware insert injection mold that fixation is stable, formed precision is high and production efficiency is high.
In order to realize the main object of the present invention, the present invention provides a kind of hardware insert injection mold, including front cavity, after
Mode and Dan Zhen mechanisms, Dan Zhen mechanisms include thimble and pressure assembly, and thimble movably runs through front cavity, and rear cavity is before
It is provided with magnet mold insert in the groove of mode, the adsorbable hardware insert of magnet mold insert, it is embedding that the abutment end of thimble can be pressed on hardware
On part, in precompressed position, it is precompressed active force that abutment end, which is pressed on the active force on hardware insert, in compacted position, pressure group
Part is connect with thimble, and it is clamping force that abutment end, which is pressed on the active force on hardware insert, and precompressed active force, which is less than to compress, to be made
Firmly, front cavity precompressed position ratio in compacted position on open mold direction further from rear cavity.
It can be seen that when hardware insert is placed in the groove of rear cavity, hardware insert is adsorbed by magnet mold insert and is carried out
Pre-determined bit.During hardware insert injection mould closing, at precompressed position, the abutment end of thimble is pressed on hardware insert
Active force be precompressed active force, precompressed active force pre-fixes hardware insert.Continue to close in hardware insert injection mold
In mold process, it is clamping force that in compacted position, the abutment end of thimble, which is pressed on the active force on hardware insert, is applied at this time
Pressure component is connect with thimble, and the abutment end of thimble goes into overdrive to be pressed on hardware insert, and further jail is carried out to hardware insert
Solid fixation, to clamping force be more than precompressed active force.Finally carry out injection molding, realize hardware insert and plastic part it
Between perfect engagement, be not required to consider whether hardware insert is equipped with location hole, or consider mold whether go by the space with bigger
The positioning that other structures carry out hardware insert is done, to which the structure of hardware insert injection mold becomes simpler, is safeguarded more
It is convenient, the accurate positioning of hardware insert, and fixation is stablized, the problem of being not in hardware insert dislocation or fall.Also,
Shorten the injection cycle of hardware insert injection mold, formed precision is high, greatly save mold manufacturing and injection molding at
This, product volume production is stablized, and fraction defective is low, substantially increases production efficiency.
Further scheme is that pressure assembly includes movable block, and in compacted position, movable block is pressed on thimble.
It can be seen that in compacted position, movable block is pressed on thimble, is given thimble and is compressed active force, and supporting for thimble is made
Connect end go into overdrive compress hardware insert be fixed, improve the fixed firmness and stability of hardware insert.
Further scheme is that pressure assembly includes movable block and spring, and movable block is movably sleeved on thimble, top
Needle set has shaft shoulder portion, and spring pocket is on thimble, and in compacted position, spring is pressed between shaft shoulder portion and movable block.
It can be seen that in compacted position, movable block is pressed on spring, and spring is made to be in confined state, the bullet of spring
Property restoring force act in the shaft shoulder portion of thimble, force the abutment end of thimble go into overdrive compress hardware insert be fixed, carry
The high fixed firmness and stability of hardware insert.
Further scheme is that front cavity offers the limit hole through setting for thimble, and setting is limited in limit hole
Position ring wall, shaft shoulder portion can be resisted against on limit ring wall.
Further scheme is that thimble is moved along open mold direction.
Further scheme is that the position of magnet mold insert and thimble on open mold direction is oppositely arranged.
It can be seen that thimble can be moved along open mold direction, the position phase of magnet mold insert and thimble on open mold direction
To setting, the overall volume of hardware insert injection mold is reduced, and to the accurate positioning of hardware insert, improve hardware insert
Fixed firmness and stability, formed precision it is high, greatly save the cost of mold manufacturing and injection molding, product volume production
Stablize, fraction defective is low, substantially increases production efficiency.
Further scheme is that hardware insert injection mold further includes core-pulling mechanism, and core-pulling mechanism has sliding block and control
There is open accommodating chamber, accommodating chamber can contain one end of hardware insert for the control assembly of sliding block movement processed, the side of sliding block.
Further scheme is that control assembly includes inclined guide pillar and movable plate, and movable plate is moved along open mold direction, tiltedly
Guide post obliquely runs through sliding block with respect to open mold direction, and one end of inclined guide pillar is connect with movable plate, and inclined guide pillar forces sliding block direction
Or one end far from hardware insert is moved.
Further scheme is that front cavity, rear cavity and sliding block fasten to form cavity, and the other end of hardware insert is located at
The outside of cavity.
Further scheme is, rear cavity towards front cavity side evagination be provided with boss, front cavity is after
Lowland is provided with fluting in the side of mode, and the other end of hardware insert is resisted against the side of boss, and boss can be inserted into fluting,
Improve the accuracy of molding.
Description of the drawings
Fig. 1 is the structure chart of hardware insert.
Fig. 2 is the front view of line connector.
Fig. 3 is the upward view of line connector.
Fig. 4 is the right view of line connector.
Fig. 5 is sectional views of the Fig. 2 at A-A.
Fig. 6 is the partial top view of hardware insert injection mold first embodiment of the present invention.
Fig. 7 is Fig. 6 sectional views under the first working condition at B-B.
Fig. 8 is Fig. 6 sectional views under the second working condition at B-B.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific implementation mode
Application of the following embodiment mainly for hardware insert injection mold of the present invention on molding line connector, but not
It is limited to the line connector, the plasthetics with hardware insert may be applicable to hardware insert injection mould of the present invention in production
Tool, so that it is guaranteed that the firm position of hardware insert is stablized, formed precision is high and production efficiency is high.
Hardware insert injection mold first embodiment：
Referring to Fig. 1 to Fig. 5, hardware insert 1 is arranged in strip, and embedded in line connector 2 there are two hardware arranged side by side
Inserts 1, the both ends 11,12 of hardware insert 1 are exposed at the outside of the plastic part 21 of line connector 2, the middle part of hardware insert 1
It is embedded in the inside of plastic part 21.
Referring to Fig. 6 and Fig. 7, hardware insert injection mold 3 includes front cavity 35, rear cavity 31, Dan Zhen mechanisms 34 and takes out
Core mechanism 33, Dan Zhen mechanisms 34 include thimble 341 and pressure assembly, and thimble 341 movably runs through front cavity 35.Rear cavity 31
Magnet mold insert 32,32 adsorbable hardware insert 1 of magnet mold insert, the abutting of thimble 341 are provided in towards the groove of front cavity 35
End can be pressed on hardware insert 1.In precompressed position, the active force that the abutment end of thimble 341 is pressed on hardware insert 1 is pre-
Press active force.In compacted position, pressure assembly is connect with thimble 341, and the abutment end of thimble 341 is pressed on hardware insert 1
Active force is clamping force.Precompressed active force is less than clamping force, and front cavity 35 exists in precompressed position ratio in compacted position
Further from rear cavity 31 on open mold direction.
Specifically, pressure assembly includes movable block 344 and spring 343, and movable block 344 is movably sleeved on thimble 341,
There is thimble 341 shaft shoulder portion 342, spring 343 to be sleeved on thimble 341.In compacted position, spring 343 is pressed on 342 He of shaft shoulder portion
Between movable block 344.Front cavity 35 offers the limit hole through setting for thimble 341, and restraining position ring block is arranged in the limit hole
Wall 352, shaft shoulder portion 342 can be resisted against on limit ring wall 352.The present embodiment thimble 341 is moved along open mold direction, and magnet
The position of mold insert 32 and thimble 341 on open mold direction is oppositely arranged.
Embedded two hardware inserts 1 are needed in the present embodiment line connector 2, therefore are had in hardware insert injection mold 3
There are six Zu Dan needles mechanisms 34 and four magnet mold inserts 32.Specifically, rear cavity 31 is towards having two in the groove of front cavity 35
The middle part of a lug boss 312, two hardware inserts 1 can be individually placed on two lug bosses 312, two of which magnet mold insert 32
Respectively close to one of hardware insert 1 both ends 11,12 be distributed, other two magnet mold insert 32 respectively close to another five
The both ends 11,12 of golden inserts 1 are distributed.The thimble 341 and four magnet mold inserts 32 of wherein four Zu Dan needles mechanisms 34 are in open mold side
Upward position is oppositely arranged, and in addition the thimble 341 of Liang Zudan needles mechanism 34 and two lug bosses 312 are on open mold direction
Position is oppositely arranged.Six thimbles 341 of six Zu Dan needles mechanism 34 of the present embodiment share a movable block 344, i.e. movable block 344
On open up that there are six supply the through-hole 345 that passes through of six thimbles 341 respectively.
Core-pulling mechanism 33 has the control assembly that sliding block 331 and control slide block 331 move, and the side of sliding block 331, which has, to be opened
The accommodating chamber of mouth（It does not indicate）, accommodating chamber can contain one end 12 of hardware insert 1.Front cavity 35, rear cavity 31 and sliding block 331 are detained
Conjunction forms cavity, and the other end 11 of hardware insert 1 is located at the outside of cavity.Side evagination of the rear cavity 31 towards front cavity 35
It is provided with boss 311, front cavity 35 is provided with fluting 351, the other end of hardware insert 1 towards lowland in the side of rear cavity 31
11 are resisted against the side of boss 311, and boss 311 can be inserted into fluting 351.
Control assembly is to tilt ejecting mechanism, and control assembly includes inclined guide pillar 332 and movable plate 333, and movable plate 333 is along opening
Direction movement is molded, inclined guide pillar 332 is obliquely installed with respect to open mold direction, and one end of inclined guide pillar 332 is connect with movable plate 333,
The other end of inclined guide pillar 332 is arranged through sliding block 331, and inclined guide pillar 332 forces sliding block 331 towards or away from the one of hardware insert 1
12 movement of end.Wherein, the present embodiment sliding block 331 is moved perpendicular to open mold direction.
Referring to Fig. 7 and Fig. 8, hardware insert injection mold 3 is during being molded production, after hardware insert 1 is placed on
Mode 31 is towards in the groove of front cavity 35, and the other end 11 of hardware insert 1 is resisted against the side of boss 311, lug boss 312
Apical support hardware insert 1, and magnet mold insert 32 adsorbs hardware insert 1 and is pre-positioned.
Then, control hardware insert injection mold 3 carries out mould assembling action.When between front cavity 35 and rear cavity 31 have one
When set a distance, the abutment end of the thimble 341 of Dan Zhen mechanisms 34 is pressed on hardware insert 1, while the shaft shoulder portion 342 of thimble 341
It is resisted against on the limit ring wall 352 of the limit hole of front cavity 35, hardware insert injection mold 3 is in precompressed position, spring at this time
343 are in nature retracted position, and it is precompressed active force that the abutment end of thimble 341, which is pressed on the active force on hardware insert 1,.Together
When, the control assembly control slide block 331 of core-pulling mechanism 33 is moved towards one end 12 of hardware insert 1.The present embodiment hardware insert
When injection mold 3 is in precompressed position, the distance between front cavity 35 and rear cavity 31 are 18.00 millimeters.
Then, control hardware insert injection mold 3 continues mould assembling action, is sleeved on the movable block 344 on thimble 341 after
Mode 31 moves, and front cavity 35 is also continued to move to towards rear cavity 31,331 direction of control assembly control slide block of core-pulling mechanism 33
One end 12 of hardware insert 1 continues to move to, and one end 12 of hardware insert 1 is slowly inserted into the accommodating chamber of sliding block 331.Meanwhile it moving
Motion block 344 is slowly pressed on spring 343, and spring 343 is made to be in confined state, and the elastic restoring force of spring 343 acts on
In the shaft shoulder portion 342 of thimble 341, the abutment end of thimble 341 is forced to go into overdrive to compress hardware insert 1 and be fixed, at this time five
Golden injection mould for insert 3 is in compacted position, and it is to compress to make that the abutment end of thimble 341, which is pressed on the active force on hardware insert 1,
Firmly, clamping force is more than precompressed active force.After hardware insert injection mold 3 completes mould assembling action, front cavity 35, rear mold
Benevolence 31 and the fastening of sliding block 331 form cavity.
Then, the plastics of heated thawing are injected into cavity, to injection molding injecting products, i.e. line connector 2.
Hardware insert injection mold 3 of the present invention carries out embedded hardware insert 1 using magnet mold insert 32 and Dan Zhen mechanisms 34
It accurately positions and fixed, and in precompressed position, the abutment end of the thimble 341 of Dan Zhen mechanisms 34 is pressed on hardware insert 1
Active force be precompressed active force.In compacted position, pressure assembly is connect with thimble 341, and the abutment end of thimble 341 is pressed on five
Active force on golden inserts 1 is clamping force, and precompressed active force is less than clamping force.When hardware insert injection mold 3 is complete
After mould assembling action, hardware insert 1 is completed positioning and is fixed, and injection molding is finally carried out, and realizes hardware insert 1 and plastic part 21
Between perfect engagement, be not required to consider whether hardware insert 1 is equipped with location hole, or consider mold whether the space with bigger
The positioning that other structures carry out hardware insert 1 is done, to which the structure of hardware insert injection mold 3 becomes simpler, is safeguarded
More convenient, the firm position of hardware insert 1 is stablized, the problem of being not in the dislocation of hardware insert 1 or fall.Also, shorten
The injection cycle of hardware insert injection mold 3, formed precision is high, greatlys save the cost of mold manufacturing and injection molding,
Product volume production is stablized, and fraction defective is low, substantially increases production efficiency.
Hardware insert injection mold second embodiment：
As the explanation to hardware insert injection mold second embodiment of the present invention, below only pair with hardware insert injection mold the
The difference of one embodiment illustrates.
The present embodiment pressure assembly includes movable block, and in compacted position, movable block is pressed on thimble.Specifically, five
Golden injection mould for insert 3 continues in clamping process, and movable block is pressed on thimble 341, is given thimble 341 and is compressed active force, makes
The abutment end of thimble 341 go into overdrive compress hardware insert 1 be fixed, to make hardware insert injection mold 3 be in compress
Position.
Hardware insert injection mold 3rd embodiment：
As the explanation to hardware insert injection mold 3rd embodiment of the present invention, below only pair with hardware insert injection mold the
The difference of one embodiment illustrates.
The present embodiment pressure assembly is pneumatic structure, and in compacted position, pneumatic structure provides positive pressure to thimble 341, makes top
The abutment end of needle 341 go into overdrive compress hardware insert 1 be fixed, to make clamping force be more than precompressed active force.
Pressure assembly is not limited to the above embodiments recorded technical solution, as long as hardware insert injection mold 3 is compressing
Position can be such that clamping force is all contained in more than the structure of precompressed active force interior.
Above example, only preferred embodiments of the invention, be not to limit the scope of the present invention, therefore it is all according to the present invention
The equivalent change or modification that the structure, feature and principle of claim is done should all be included in present patent application model
In enclosing.
Claims (10)
1. a kind of hardware insert injection mold, including front cavity and rear cavity, it is characterised in that：
The hardware insert injection mold further includes Dan Zhen mechanisms, and the Dan Zhen mechanisms include thimble and pressure assembly, the top
Needle movably runs through the front cavity；
For the rear cavity towards magnet mold insert is provided in the groove of the front cavity, the adsorbable hardware of magnet mold insert is embedding
The abutment end of part, the thimble can be pressed on the hardware insert；
In precompressed position, it is precompressed active force that the abutment end, which is pressed on the active force on the hardware insert,；
In compacted position, the pressure assembly is connect with the thimble, and the abutment end is pressed on the work on the hardware insert
It is firmly clamping force, the precompressed active force is less than the clamping force；
The front cavity the precompressed position ratio in the compacted position on open mold direction further from the rear cavity.
2. hardware insert injection mold according to claim 1, it is characterised in that：
The pressure assembly includes movable block, and in the compacted position, the movable block is pressed on the thimble.
3. hardware insert injection mold according to claim 1, it is characterised in that：
The pressure assembly includes movable block and spring, and the movable block is movably sleeved on the thimble, the thimble tool
There is shaft shoulder portion, the spring pocket is on the thimble；
In the compacted position, the spring is pressed between the shaft shoulder portion and the movable block.
4. hardware insert injection mold according to claim 3, it is characterised in that：
The front cavity offers the limit hole through setting for the thimble, and restraining position ring block wall, institute is arranged in the limit hole
Stating shaft shoulder portion can be resisted against on the limit ring wall.
5. hardware insert injection mold according to any one of claims 1 to 4, it is characterised in that：
The thimble is moved along the open mold direction.
6. hardware insert injection mold according to claim 5, it is characterised in that：
The position of the magnet mold insert and the thimble on the open mold direction is oppositely arranged.
7. hardware insert injection mold according to claim 6, it is characterised in that：
The hardware insert injection mold further includes core-pulling mechanism, and the core-pulling mechanism has sliding block and controls the sliding block movement
Control assembly, there is open accommodating chamber, the accommodating chamber can contain one end of the hardware insert for the side of the sliding block.
8. hardware insert injection mold according to claim 7, it is characterised in that：
The control assembly includes inclined guide pillar and movable plate, and the movable plate is moved along the open mold direction, the inclined guide pillar
The sliding block is obliquely run through in the relatively described open mold direction, and one end of the inclined guide pillar is connect with the movable plate, described oblique
Guide post forces the sliding block to be moved towards or away from one end of the hardware insert.
9. hardware insert injection mold according to claim 8, it is characterised in that：
The front cavity, the rear cavity and the sliding block fasten to form cavity, and the other end of the hardware insert is positioned at described
The outside of cavity.
10. hardware insert injection mold according to claim 9, it is characterised in that：
The rear cavity towards the front cavity side evagination be provided with boss, the front cavity is towards the rear cavity
Lowland is provided with fluting in side, and the other end of the hardware insert is resisted against the side of the boss, and the boss can be inserted into
In the fluting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885651.1A CN108748865A (en) | 2018-08-06 | 2018-08-06 | A kind of hardware insert injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885651.1A CN108748865A (en) | 2018-08-06 | 2018-08-06 | A kind of hardware insert injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108748865A true CN108748865A (en) | 2018-11-06 |
Family
ID=63968995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810885651.1A Pending CN108748865A (en) | 2018-08-06 | 2018-08-06 | A kind of hardware insert injection mold |
Country Status (1)
| Country | Link |
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| CN (1) | CN108748865A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110421794A (en) * | 2019-08-30 | 2019-11-08 | 昆山嘉华汽车电子科技有限公司 | A kind of injection mold |
| CN111745913A (en) * | 2020-07-03 | 2020-10-09 | 中山诗兰姆汽车零部件有限公司 | Embedded plastic steel plate thread side core-pulling injection mold |
| CN114131832A (en) * | 2021-12-01 | 2022-03-04 | 上海飞乐汽车控制系统有限公司 | Injection mold for injection molding product with insert |
| CN114131831A (en) * | 2021-12-01 | 2022-03-04 | 上海飞乐汽车控制系统有限公司 | Insert positioning device for injection mold and injection mold |
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| CN110421794A (en) * | 2019-08-30 | 2019-11-08 | 昆山嘉华汽车电子科技有限公司 | A kind of injection mold |
| CN111745913A (en) * | 2020-07-03 | 2020-10-09 | 中山诗兰姆汽车零部件有限公司 | Embedded plastic steel plate thread side core-pulling injection mold |
| CN114131832A (en) * | 2021-12-01 | 2022-03-04 | 上海飞乐汽车控制系统有限公司 | Injection mold for injection molding product with insert |
| CN114131831A (en) * | 2021-12-01 | 2022-03-04 | 上海飞乐汽车控制系统有限公司 | Insert positioning device for injection mold and injection mold |
| CN114131831B (en) * | 2021-12-01 | 2024-04-09 | 上海飞乐汽车控制系统有限公司 | Insert positioning device for injection mold and injection mold |
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