CN110406050A - A kind of injection mold of auto parts and components manufacture - Google Patents
A kind of injection mold of auto parts and components manufacture Download PDFInfo
- Publication number
- CN110406050A CN110406050A CN201910656215.1A CN201910656215A CN110406050A CN 110406050 A CN110406050 A CN 110406050A CN 201910656215 A CN201910656215 A CN 201910656215A CN 110406050 A CN110406050 A CN 110406050A
- Authority
- CN
- China
- Prior art keywords
- plate
- auto parts
- rotary head
- air bag
- injection 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/7207—Heating or cooling of the moulded articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of injection molds of auto parts and components manufacture, its structure includes footstock, upper mold, positioning column, lower die, ejecting mechanism, supporting block, pedestal, the bottom surface of footstock is fixedly connected with the top surface of upper mold, the bottom surface four corners position of upper mold is vertically connected with positioning column, compared with prior art, the beneficial effects of the present invention are: the present invention is by being transformed design to ejecting mechanism, pass through lifting platform, double end connection group, the combination of power packages is arranged, after molding, pass through the cooperation of wheel and rack plate, it is connected to die cavity with gas flow passage, utilize the characteristic of clockwork spring, the air in die cavity is pumped out by air bag, it effectively prevent air to be mixed into modeling slurry, thus to avoid auto parts from forming stomata, the structural strength of auto parts and components is guaranteed, help to improve the quality of auto parts, After injection molding, injection-molded item can be blowed to using the air of suction, conducive to the rapid cooling of injection-molded item, convenient for die sinking.
Description
Technical field
The present invention relates to technical field of mold, specifically a kind of injection mold of auto parts and components manufacture.
Background technique
Injection mold is a kind of tool for producing plasthetics, and many auto parts and components mostly use injection mold to be molded into greatly
Type.
Injection mold can generate air-flow around upper mold decline in molding, and after lower die molding, most of air is molded
It is extruded when power, because die cavity has certain space, so that sub-fraction air then remains in die cavity, when being molded,
Air can be mixed into injection molding material, so that easily leading to auto parts forms stomata, influence the structural strength of auto parts and components, can also
Auto parts after molding can be caused not to be available as substandard products.
Summary of the invention
It is a primary object of the present invention to overcome the deficiencies of the prior art and provide a kind of injection molding of auto parts and components manufacture
Mold.
The present invention adopts the following technical scheme that realize: a kind of injection mold of auto parts and components manufacture, structure packet
Include footstock, upper mold, positioning column, lower die, ejecting mechanism, supporting block, pedestal, the fixed company in the bottom surface of the footstock and the top surface of upper mold
It connects, the bottom surface four corners position of the upper mold is vertically connected with positioning column, and the positioning column is matched with lower die, the lower die
Bottom surface both side pass through supporting block and connect with pedestal, be provided between two pieces of supporting blocks and be flexibly connected with pedestal, lower die
Ejecting mechanism；
The ejecting mechanism includes mandril, lifting platform, double end connection group, power packages, the top surface both ends of the lifting platform
It is vertically connected with mandril, the mandril is laid with two in parallel and links together by double end connection group, power packages.
As optimization, the mandril includes rotary head slot, gas flow passage, through-hole, the body of rod, is opened up at the top of the body of rod
Have rotary head slot, the rotary head slot is connected with gas flow passage, the gas flow passage in type structure setting in the body of rod, it is described
The side of the body of rod is additionally provided with the through-hole communicated with rotary head slot, and the rotary head slot, through-hole cooperate with double end connection group, the gas
Circulation road is connected to power packages, and the body of rod is through lower die.
As optimization, the double end connection group includes rotary head, bull stick, pull plate, gear, and two ends of the bull stick are equal
Rotary head is installed, the gear excessively cooperated with bull stick, the gear and the pull immediately below it are equipped among two rotary heads
Plate activity cooperation, the bull stick and through-hole carry out axis connection, and the rotary head matches with rotary head slot, and the pull plate and lower die are sliding
Dynamic connection.
As optimization, the rotary head includes sphere, channel, guide ring, and the sphere centre of sphere offers cylinder along axis
The channel of shape, the two sides of the sphere are respectively and fixedly provided with guide ring, and the guide ring, sphere are built in rotary head slot, the sphere
Vertical with bull stick to connect, the channel is mutually perpendicular to bull stick.
As optimization, the pull plate includes limit plate, rack-plate, connecting plate, pull handle, one end of the rack-plate
Vertical with limit plate to connect, the other end passes through connecting plate with pull being connected, and the gear is provided close to one end of connecting plate
And be meshed with the tooth block on rack-plate, the raised line of the two outside groove of rack-plate and lower die is gap-matched.
As optimization, the power packages include guide plate, air bag group, position-arresting disk, clockwork spring, turntable, in the position-arresting disk
It is equipped with clockwork spring, one end of the clockwork spring is connect with guide plate slides, and the other end is connected in the shaft of turntable, and the guide plate is set
Longitudinal along axis in the center of position-arresting disk, the position-arresting disk two sides are equipped with the air bag group connecting with clockwork spring, and the air bag group connects
Pass through gas flow passage.
As optimization, the air bag group includes hollow set, side plate, air bag, gas hood, and described air bag one end is fixed with side
Plate, the other end are then equipped with gas hood, and the side plate is vertically connected with hollow set far from one end center of air bag, the hollow set with
Clockwork spring is gap-matched, and the gas hood is seamless to be connected to gas flow passage.
Beneficial effect
After upper mold and lower die mold, connecting plate is pulled by pull by rack-plate so that driven when rack-plate translates with
Be meshed gear rotation so that while bull stick links drive rotary head rotate, so that channel is by horizontality
Plumbness is turned to, so that die cavity is connected to by channel with gas flow passage, clockwork spring is discharged by rotating clockwise turntable, to send out
Bore, which expands to cover hollow, generates thrust, is squeezed by side plate air bag, is prepared for air-breathing, after turn counterclockwise
Disk carries out pulling-down to clockwork spring, so that clockwork spring bore, which reduces to cover hollow, generates pulling force, so that air bag is by air extra in die cavity
It siphons away.
Compared with prior art, the beneficial effects of the present invention are: the present invention by being transformed design to ejecting mechanism,
It is arranged by the combination of lifting platform, double end connection group, power packages, after molding, by the cooperation of wheel and rack plate, makes die cavity
It is connected to gas flow passage, using the characteristic of clockwork spring, the air in die cavity is pumped out by air bag, air is effectively prevent to mix
Into modeling slurry, to enable the structural strength of auto parts and components to be guaranteed to avoid auto parts from forming stomata, help
In the quality for improving auto parts, after injection molding, injection-molded item can be blowed to using the air of suction, conducive to the fast of injection-molded item
Quickly cooling but, is convenient for die sinking.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of structural schematic diagram of the injection mold of auto parts and components manufacture of the present invention.
Fig. 2 is the positive structure diagram of ejecting mechanism of the invention.
Fig. 3 is the longitudinal profile structure schematic of mandril of the invention.
Fig. 4 is the positive structure diagram under a kind of working condition of double end connection group of the invention.
Fig. 5 is the structural schematic diagram under a kind of working condition of rotary head of the invention.
Fig. 6 is the side structure schematic view of pull plate of the invention.
Fig. 7 is the positive structure diagram under a kind of working condition of power packages of the invention.
In figure, the corresponding relationship of component names and accompanying drawing number are as follows:
Footstock -1, upper mold -2, positioning column -3, lower die -4, ejecting mechanism -5, supporting block -6, pedestal -7, mandril -50, lifting
Platform -51, power packages -53, rotary head slot -500, gas flow passage -501, through-hole -502, the body of rod -503, turns double end connection group -52
Head -520, bull stick -521, pull plate -522, gear -523, sphere -5200, channel -5201, guide ring -5202, limit plate -
5220, rack-plate -5221, connecting plate -5222, pull are -5223, guide plate -530, air bag group -531, position-arresting disk -532, hair
Item -533, turntable -534, hollow set -5310, side plate -5311, air bag -5312, gas hood -5313.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 1-7 is please referred to, the present invention provides a kind of injection mold technical solution of auto parts and components manufacture: its structure packet
Include footstock 1, upper mold 2, positioning column 3, lower die 4, ejecting mechanism 5, supporting block 6, pedestal 7, bottom surface and the upper mold 2 of the footstock 1
Top surface is fixedly connected, and the bottom surface four corners position of the upper mold 2 is vertically connected with positioning column 3, the positioning column 3 and lower die 4
It matches, the bottom surface both side of the lower die 4 passes through supporting block 6 and connect with pedestal 7, is provided between two pieces of supporting blocks 6
The ejecting mechanism 5 being flexibly connected with pedestal 7, lower die 4；
The ejecting mechanism 5 includes mandril 50, lifting platform 51, double end connection group 52, power packages 53, the lifting platform 51
Top surface both ends be vertically connected with mandril 50, the mandril 50 is laid with two and by double end connection group 52, power in parallel
Group 53 links together.
The mandril 50 includes rotary head slot 500, gas flow passage 501, through-hole 502, the body of rod 503, the body of rod 503
Top offers rotary head slot 500, and the rotary head slot 500 is connected with gas flow passage 501, and the gas flow passage 501 is L-shaped
For structure setting in the body of rod 503, the side of the body of rod 503 is additionally provided with the through-hole 502 communicated with rotary head slot 500, the rotary head
Slot 500, through-hole 502 cooperate with double end connection group 52, and the gas flow passage 501 is connected to power packages 53, the body of rod 503
Through lower die 4.
The double end connection group 52 includes rotary head 520, bull stick 521, pull plate 522, gear 523, the bull stick 521
Two ends are mounted on rotary head 520, and the gear 523 excessively cooperated with bull stick 521 is equipped among two rotary heads 520, described
Gear 523 and 522 activity of pull plate immediately below it cooperate, and the bull stick 521 carries out axis connection, the rotary head with through-hole 502
520 match with rotary head slot 500, and the pull plate 522 is slidably connected with lower die 4, and the double end connection group 52 is provided in
The efficiency of suction air is improved, so as to improve injection efficiency.
The rotary head 520 includes sphere 5200, channel 5201, guide ring 5202, and 5200 centre of sphere of sphere is along axis
Columned channel 5201 is offered, the two sides of the sphere 5200 are respectively and fixedly provided with guide ring 5202, the guide ring 5202, ball
Body 5200 is built in rotary head slot 500, and the sphere 5200 is vertical with bull stick 521 to be connect, the channel 5201 and 521 phase of bull stick
Mutually vertical, die cavity is connected to by being provided in for the rotary head 520 with gas flow passage 501.
The pull plate 522 includes limit plate 5220, rack-plate 5221, connecting plate 5222, pull 5223, the tooth
One end of batten 5221 is vertical with limit plate 5220 to be connect, and the other end is connected with pull 5223 by connecting plate 5222, institute
It states gear 523 to be provided close to one end of connecting plate 5222 and be meshed with the tooth block on rack-plate 5221, the rack-plate 5221
Two outside grooves and the raised line of lower die 4 are gap-matched, and being provided in for the pull plate 522 provides power for rotary head 520,
So that rotary head 520 is rotated, being provided in for the limit plate 5220 plays the role of limit to rack-plate 5221, effectively anti-
Only pull excessively causes rack-plate 5221 to be detached from gear 523.
The power packages 53 include guide plate 530, air bag group 531, position-arresting disk 532, clockwork spring 533, turntable 534, described
Position-arresting disk 532 is built-in with clockwork spring 533, and one end and the guide plate 530 of the clockwork spring 533 are slidably connected, and the other end is connected to turntable
In 534 shaft, the center that the guide plate 530 is set to position-arresting disk 532 is longitudinal along axis, and 532 two sides of position-arresting disk are all provided with
There is the air bag group 531 connecting with clockwork spring 533, the air bag group 531 is connected to gas flow passage 501, and the power packages 53 are set
It sets and is to die cavity air-breathing or offer power of blowing.
The air bag group 531 includes that hollow covers 5310, side plate 5311, air bag 5312, gas hood 5313, the air bag 5312
One end is fixed with side plate 5311, and the other end is then equipped with gas hood 5313, one end center of the side plate 5311 far from air bag 5312
It is vertically connected with hollow set 5310, the hollow set 5310 is gap-matched with clockwork spring 533, the seamless connection of the gas hood 5313
In gas flow passage 501, being provided in for the air bag group 531 can carry out air-breathing or air blowing to die cavity, can before injection molding
Air in die cavity is siphoned away, residual air in die cavity is prevented and influences the quality of injection-molded item, the sky of suction is utilized after injection molding
Air-blowing is to injection-molded item, conducive to the rapid cooling of injection-molded item, convenient for die sinking.
The working principle of the invention: after upper mold 2 and lower die 4 mold, 5223, connecting plate 5222 is pulled by pull by tooth
Batten 5221, so that driving the gear 523 being meshed therewith to rotate when rack-plate 5221 translates, so that bull stick 521 occurs
Rotary head 520 is driven to rotate while linkage, so that channel 5201 turns to plumbness by horizontality, so that channel 5201 is by mould
Chamber is connected to gas flow passage 501, discharges clockwork spring 533 by rotating clockwise turntable 534, thus the expansion pair of 533 bore of clockwork spring
Hollow set 5310 generate thrusts, air bag 5312 is squeezed by side plate 5311, is prepared for air-breathing, after turn counterclockwise
Disk 534 carries out pulling-down to clockwork spring 533, so that 533 bore of clockwork spring, which is reduced, generates pulling force to hollow set 5310, so that air bag 5312 will
Extra air siphons away in die cavity, injection-molded item can be blowed to using the air of suction after injection molding, conducive to the quick of injection-molded item
It is cooling, convenient for die sinking.
In conclusion the technological progress that the present invention obtains compared with the prior art is: the present invention is by carrying out ejecting mechanism
Improvement and design is arranged by the combination of lifting platform, double end connection group, power packages, after molding, passes through matching for wheel and rack plate
It closes, is connected to die cavity with gas flow passage, using the characteristic of clockwork spring, is pumped out the air in die cavity by air bag, it is effectively anti-
Only air is mixed into modeling slurry, to enable the structural strength of auto parts and components to obtain to avoid auto parts from forming stomata
To guarantee, the quality of auto parts is helped to improve, after injection molding, injection-molded item can be blowed to using the air of suction, be conducive to
The rapid cooling of injection-molded item, convenient for die sinking.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (7)
1. a kind of injection mold of auto parts and components manufacture, structure includes footstock (1), upper mold (2), positioning column (3), lower die
(4), ejecting mechanism (5), supporting block (6), pedestal (7), footstock (1) bottom connect mould (2), and the upper mold (2) passes through positioning
Column (3) and lower die (4) cooperate, and are connect between the lower die (4) and pedestal (7) by supporting block (6), ejecting mechanism (5), special
Sign is:
The ejecting mechanism (5) includes mandril (50), lifting platform (51), double end connection group (52), power packages (53), the liter
Mandril (50) two are set in drop platform (51), two mandrils (50) are connected by double end connection group (52), power packages (53).
2. a kind of injection mold of auto parts and components manufacture according to claim 1, it is characterised in that: the mandril
It (50) include rotary head slot (500), gas flow passage (501), through-hole (502), the body of rod (503), the body of rod (503) is equipped with phase
Logical rotary head slot (500), gas flow passage (501), through-hole (502), the rotary head slot (500), through-hole (502) connect with double end
Logical group (52) cooperation, the gas flow passage (501) are connected to power packages (53).
3. a kind of injection mold of auto parts and components manufacture according to claim 2, it is characterised in that: the double end connects
Logical group (52) include rotary head (520), bull stick (521), pull plate (522), gear (523), and (521) two end of bull stick is equal
Rotary head (520) are installed, placed in the middle to be equipped with the gear (523) cooperate with pull plate (522), the bull stick (521) and through-hole (502)
Connection, the rotary head (520) and rotary head slot (500) coincide.
4. a kind of injection mold of auto parts and components manufacture according to claim 3, it is characterised in that: the rotary head
(520) include sphere (5200), channel (5201), guide ring (5202), set channel (5201) in the sphere (5200), outside
It is fixed with guide ring (5202), the guide ring (5202), sphere (5200) are built in rotary head slot (500), the sphere
(5200) it is connect with bull stick (521).
5. a kind of injection mold of auto parts and components manufacture according to claim 3, it is characterised in that: the pull plate
It (522) include limit plate (5220), rack-plate (5221), connecting plate (5222), pull (5223), the rack-plate
(5221) one end is connected with limit plate (5220), and the other end connects (5223) with pull by connecting plate (5222), described
Gear (523) and rack-plate (5221) cooperate.
6. a kind of injection mold of auto parts and components manufacture according to claim 1, it is characterised in that: the power packages
It (53) include guide plate (530), air bag group (531), position-arresting disk (532), clockwork spring (533), turntable (534), the position-arresting disk
(532) it is built-in with clockwork spring (533), described clockwork spring (533) one end is connected in guide plate (530), another to be terminated at turntable (534), institute
It states guide plate (530) to be located at position-arresting disk (532), position-arresting disk (532) two sides are equipped with the air bag group connecting with clockwork spring (533)
(531), the air bag group (531) is connected to gas flow passage (501).
7. a kind of injection mold of auto parts and components manufacture according to claim 6, it is characterised in that: the air bag group
(531) include hollow set (5310), side plate (5311), air bag (5312), gas hood (5313), described air bag (5312) one end with
Side plate (5311) is connected, and the other end connects with gas hood (5313), and the side plate (5311) passes through hollow set (5310) and clockwork spring
(533) it connects, the gas hood (5313) is connected to gas flow passage (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656215.1A CN110406050A (en) | 2019-07-19 | 2019-07-19 | A kind of injection mold of auto parts and components manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656215.1A CN110406050A (en) | 2019-07-19 | 2019-07-19 | A kind of injection mold of auto parts and components manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110406050A true CN110406050A (en) | 2019-11-05 |
Family
ID=68360376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910656215.1A Pending CN110406050A (en) | 2019-07-19 | 2019-07-19 | A kind of injection mold of auto parts and components manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110406050A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250606A (en) * | 2020-03-02 | 2020-06-09 | 李建伟 | Cold stamping die |
| CN112223683A (en) * | 2020-09-15 | 2021-01-15 | 南京府库就电子商务有限公司 | Communication equipment shell injection mold of intelligence evacuation |
| CN112497673A (en) * | 2020-12-14 | 2021-03-16 | 武汉沃美康科技有限公司 | Injection mold with accurate positioning |
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| CN200948659Y (en) * | 2006-09-18 | 2007-09-19 | 深圳市欣旺达电子有限公司 | Thin-walled injection mold |
| CN104960167A (en) * | 2015-05-27 | 2015-10-07 | 昆山—邦泰汽车零部件制造有限公司 | Vacuum injection molding die |
| CN207669616U (en) * | 2017-12-26 | 2018-07-31 | 苏州联开精密模具有限公司 | A kind of mould structure with air blowing assisted demoulding |
| CN208896391U (en) * | 2018-08-10 | 2019-05-24 | 珠海市鸿域注塑有限公司 | A kind of air-conditioning moulding injection mold |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200948659Y (en) * | 2006-09-18 | 2007-09-19 | 深圳市欣旺达电子有限公司 | Thin-walled injection mold |
| CN104960167A (en) * | 2015-05-27 | 2015-10-07 | 昆山—邦泰汽车零部件制造有限公司 | Vacuum injection molding die |
| CN207669616U (en) * | 2017-12-26 | 2018-07-31 | 苏州联开精密模具有限公司 | A kind of mould structure with air blowing assisted demoulding |
| CN208896391U (en) * | 2018-08-10 | 2019-05-24 | 珠海市鸿域注塑有限公司 | A kind of air-conditioning moulding injection mold |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250606A (en) * | 2020-03-02 | 2020-06-09 | 李建伟 | Cold stamping die |
| CN112223683A (en) * | 2020-09-15 | 2021-01-15 | 南京府库就电子商务有限公司 | Communication equipment shell injection mold of intelligence evacuation |
| CN112223683B (en) * | 2020-09-15 | 2021-08-03 | 深圳市金亿丰塑胶电子有限公司 | Communication equipment shell injection mold of intelligence evacuation |
| CN112497673A (en) * | 2020-12-14 | 2021-03-16 | 武汉沃美康科技有限公司 | Injection mold with accurate positioning |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191105 |
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