CN108189331A - A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device - Google Patents

A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device Download PDF

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Publication number
CN108189331A
CN108189331A CN201810279551.4A CN201810279551A CN108189331A CN 108189331 A CN108189331 A CN 108189331A CN 201810279551 A CN201810279551 A CN 201810279551A CN 108189331 A CN108189331 A CN 108189331A
Authority
CN
China
Prior art keywords
mandril
hole
thimble
pneumatic jacking
housing
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.)
Withdrawn
Application number
CN201810279551.4A
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Chinese (zh)
Inventor
黄志远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangzhou Longwen District Ren Xin Industrial Design Co Ltd
Original Assignee
Zhangzhou Longwen District Ren Xin Industrial Design Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhangzhou Longwen District Ren Xin Industrial Design Co Ltd filed Critical Zhangzhou Longwen District Ren Xin Industrial Design Co Ltd
Priority to CN201810279551.4A priority Critical patent/CN108189331A/en
Publication of CN108189331A publication Critical patent/CN108189331A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • B29C45/2606Guiding or centering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • B29C45/401Ejector pin constructions or mountings

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to the deep chamber injection mold that a kind of mandril carries pneumatic jacking-up device, including cover half, dynamic model, upper cores, lower mode, mold cavity, top clamping plate, cast gate, sprue bush, injection runner, support block, Bottom clamp plate, top plate and mandril;Mandril includes mandril main body, pneumatic jacking-up device and connection bolt;Pneumatic jacking-up device includes housing, thimble and spring equipped with through-hole;Through-hole is made of trapezoidal hole, the second hole, third hole and lower opening;Housing is equipped with gas port;Third hole inner wall is equipped with air admission hole;Thimble is equipped with airtight section, guide section, crossette and spring guide;Spring pushes crossette to third hole lower edge;Mandril main body is equipped with venthole;Housing, connection bolt and mandril body outer wall are equipped with air slot.The mandril of the present invention is with pneumatic jacking-up device, its thimble is inwardly opened during work, and it is easy to open, and pneumatically makes injecting products and mold separation, white, bursting or top will not deform on injecting products top, without in addition opening up compressed air air flue.

Description

A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device
Technical field
The present invention relates to the deep chamber injection moulds that injection mold technology more particularly to a kind of mandril carry pneumatic jacking-up device Tool.
Background technology
Injection molding is to produce a kind of common method of injecting products, refers specifically to inject the material of heated thawing by high pressure Mold cavity after cooling and solidifying, obtains formed products.During injection, for make can be smoothly from mold after formed product It comes off in cavity, generally use ejecting mechanism releases product.In injecting products, the closing of wall shell has bottom, chamber depth size to be more than The container class such as bucket, box, the case that five times of wall thickness dimension product is known as deep chamber product, due to the packet between deep chamber product and mold cores It is big to cover power, glues glutinous and suction function in addition, causes deep chamber product stripping difficult;Demoulding for deep chamber product, generally use top The united method in bar aerating top ejects product.So-called pneumatic jack is the mode in mold(Core)Place's setting air pins, in mandril Before ejecting product, first deep chamber product is advertised with compressed air and be allowed to first break away from moulds surface, then ejected completely with mandril.Air pins It is a kind of air flow switch element for the demoulding of mold pneumatic jack, as shown in Figure 7 and Figure 8, during work, compression is empty for existing air pins Gas enter below the air pins it is internal push thimble 1 ' that the elastic force of spring 2 ' is overcome to open outward, compressed air is from 1 ' top of thimble It is flowed out with the gap of air pin boss body 3 ', pushes up injecting products, detach injecting products and mold cavity.
In practical applications, when existing air pins are used in deep chamber product stripping, since product is tightly attached in air pins Surface has resisted air pins, and air pins are difficult to open outward, and increase air pressure easily makes air pins go out core again, damages product Mold and operating personnel even can be injured, also easily by product top is white, bursting or top deform, it has to be increased on mold cavity de- The quantity for spray of mould agent is eliminated the top white point hot wind of product with electrothermal blowing, causes great work intensity, efficiency is low, defective products Rate is high, and synthesis is of high cost.When secondly, using air pins as pneumatic jack, compressed air air flue is in addition opened up in injection mold, Complicate injection mold.
Invention content
The present invention overcomes the deficiencies in the prior art, provide the deep chamber injection mold that a kind of mandril carries pneumatic jacking-up device, The mandril of the injection mold carries pneumatic jacking-up device, its thimble is inwardly opened when pneumatic jacking-up device works, and it is easy to open, completely by compression Air makes injecting products and mold separation, white, bursting or top will not deform on injecting products top, the injection mold is without in addition Open up compressed air air flue.
The present invention is achieved by the following technical solutions:
A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device, including adjacent fixed half and moving half;It is equipped in the cover half upper Mode, dynamic model is interior to be equipped with lower mode, and the cavity that upper cores and lower mode surround is the mold cavity for injection molding;It is described fixed Top clamping plate is equipped with above mould, is equipped with cast gate among top clamping plate, cast gate has a sprue bush, among sprue bush and in upper cores Injection runner equipped with connection cast gate and mold cavity;Both sides are equipped with support block below the dynamic model, and dynamic model seat is arranged below in support block Plate, Bottom clamp plate centre are equipped with perforation, and top plate is equipped among the support block of both sides, and the main mandril of injection molding machine connects across perforation with top plate It touches;It is provided through that dynamic model and lower mode are airtight to be slidably connected, lead to mold cavity, for ejecting injecting products on the top plate Mandril, the upper surface of the mandril are concordant with the upper surface of lower mode;
The mandril includes strip, radial section is round, hollow mandril main body;The mandril further include pneumatic jacking-up device and Connect bolt;The pneumatic jacking-up device includes cylindrical housings, thimble and the spring that axial centre is equipped with circular through hole;The housing Outer diameter it is identical with the outer diameter of mandril main body;The second hole that the through-hole is sequentially increased by trapezoidal hole and aperture, third hole and under Hole is connected in sequence from top to bottom;The big mouth down of the trapezoidal hole, the aperture of big mouth is consistent with the aperture in the second hole, should Trapezoidal hole is equipped with the gas port for leading to third hole along enclosure interior close to housing upper end;Third hole inner wall is equipped with radially logical To the air admission hole of hull outside;The thimble is arranged in through-hole, and end face is concordant with housing upper surface thereon, and the thimble is by airtight Section, guide section, crossette and spring guide are connected in sequence;The airtight section of size, shape are consistent and airtight with trapezoidal hole Cooperation, guide section diameter matches and is slidably connected with the second hole, crossette with lower opening is airtight is slidably connected;It is described connection bolt be Solid, outer diameter is identical with mandril body outer diameter, and the upper end is stretched into lower opening and connect with housing gas-tight thread, and the end end is from bullet Spring lower end of the guide rod face suitable distance is so that thimble can move downward;The spring pocket outside spring guide, set on connection bolt Between upper surface and crossette, and pushing crossette to third hole makes it withstand on third hole lower edge;Top is stretched into the connection bolt lower end It is connect inside bar main body upper end with its gas-tight thread;
The mandril body top, which is located at, to be equipped with below connection bolt lower face through mandril main body connection mandril body exterior Venthole;The housing, connection bolt and mandril body outer wall are equipped with the strip air slot of connection air admission hole and venthole.
Further, the mandril main body lower end is equipped with the interface for being connected with external compression air pipeline.Convenient for it is outer Portion's compressed air pipe connection, compressed air is provided to mandril body interior.
Further, the product of the mold cavity injection molding is deep chamber product.For deep chamber product, present invention demoulding effect Fruit is especially prominent.
The beneficial effects of the invention are as follows:
1st, pneumatic jacking-up device is set using in the upper end of mandril, gas port is set in the housing of pneumatic jacking-up device and downwards opens Thimble is guided the compressed air in third hole in the trapezoidal hole above thimble, then lead to mold cavity by gas port, completely The air pressure of pneumatically makes injecting products and mold separation, and thimble does not eject upwards as traditional air pins in itself, Injecting products top will not be deformed in white, bursting or top;
2nd, it since the thimble of pneumatic jacking-up device is opened downwards, is not injection molding product and resists, it is easy to open;
3rd, be not in the situation that air pins are gone out core by compressed air due to not having using air pins.
4th, venthole is opened up in the mandril body top of mandril, housing, connection bolt and mandril main body in pneumatic jacking-up device Outer wall opens up the air slot of connection venthole and pneumatic jacking-up device air admission hole, guides compressed air into air admission hole from mandril body interior Into inside pneumatic jacking-up device, for injection mold without in addition opening up compressed air air flue, structure is simpler.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the stereogram of the mandril of the present invention.
Fig. 3 is the structure diagram of the mandril of the present invention.
Fig. 4 is the sectional view of the housing of the pneumatic jacking-up device of mandril of the present invention.
Fig. 5 is the structure diagram of the thimble of the pneumatic jacking-up device of mandril of the present invention.
Fig. 6 is the sectional view after the thimble of the pneumatic jacking-up device of mandril of the present invention is opened.
Fig. 7 is the stereogram of existing air pins.
Fig. 8 is the sectional view of existing air pins.
Specific embodiment
As shown in Fig. 1~5, a kind of the embodiment of the present invention, mandril carries the deep chamber injection mold of pneumatic jacking-up device, including phase Adjacent cover half 1 and dynamic model 2;Upper cores 3 are equipped in the cover half 1, are equipped with lower mode 4 in dynamic model 2, upper cores 3 and lower mode 4 enclose Into cavity 5 be for injection molding mold cavity 5;The cover half 1 is equipped with top clamping plate 6 above, is set among top clamping plate 6 There is a cast gate 7, cast gate 7 has a sprue bush 8, equipped with connecting penetrating for cast gate 7 and mold cavity 5 among sprue bush 8 and in upper cores 3 Glue runner 9;Both sides are equipped with support block 10 to the dynamic model 2 below, and support block 10 is arranged below Bottom clamp plate 11, is set among Bottom clamp plate 11 There is perforation 12, top plate 13 is equipped among both sides support block 10, the main mandril 14 of injection molding machine passes through perforation 12 to be in contact with top plate 13;Institute It states and is provided through that dynamic model 2 and lower mode 4 are airtight to be slidably connected, lead to mold cavity 5, for ejecting injecting products on top plate 13 Mandril 15, the upper surface of the mandril 15 are concordant with the upper surface of lower mode 4;
The mandril 15 includes strip, radial section is round, hollow mandril main body 16;The mandril 15 further includes pneumatic jack Device and connection bolt 17;The pneumatic jacking-up device includes axial centre and is equipped with the cylindrical housings 18 of circular through hole, 19 and of thimble Spring 20;The outer diameter of the housing 18 is identical with the outer diameter of mandril main body 16;The through-hole is increased successively by trapezoidal hole 21 and aperture Big the second hole 22, third hole 23 and lower opening 24 is connected in sequence from top to bottom;The big mouth down of the trapezoidal hole 21, big mouth Aperture it is consistent with the aperture in the second hole 22, which is equipped with close to 18 upper end of housing leads to along inside housing 18 the The gas port 25 in three holes 23;23 inner wall of third hole is equipped with the air admission hole 26 radially led to outside housing 18;The thimble 19 Be arranged in through-hole, end face is concordant with 18 upper surface of housing thereon, the thimble 19 by airtight section 27, guide section 28,29 and of crossette Spring guide 30 is connected in sequence;Airtight section of 27 sizes, shape be consistent with trapezoidal hole 21 and air-tight fit, guide section 28 diameters are matched and are slidably connected with the second hole 22, crossette 29 with lower opening 24 is airtight is slidably connected;It is described connection bolt 17 be Solid, outer diameter is identical with 16 outer diameter of mandril main body, and the upper end is stretched into lower opening 24 and connect with 18 gas-tight thread of housing, the end end Portion is from 30 lower face suitable distance of spring guide so that thimble 19 can move downward;The spring 20 is sleeved on spring guide 30 Outside, between connection 17 upper surface of bolt and crossette 29, and pushing crossette 29 to third hole 23 makes it withstand under third hole 23 Edge;17 lower end of the connection bolt is stretched into inside 16 upper end of mandril main body to be connect with its gas-tight thread;
16 top of mandril main body is located to be equipped with below 17 lower face of connection bolt connects mandril main body through mandril main body 16 Venthole 31 outside 16;The housing 18, connection bolt 17 and 16 outer wall of mandril main body are equipped with connection air admission hole 26 and outlet The strip air slot 32 in hole 31.
In the present embodiment, for ease of being connect with external compression air pipeline 33, it is empty that compression is provided to the inside of mandril main body 16 Gas, 16 lower end of mandril main body are equipped with the interface 34 for being used for connecting with external compression air pipeline 33.
In the present embodiment, the product of 5 injection molding of mold cavity is deep chamber product.For deep chamber product, the present invention Stripping result is especially prominent.
Operation principle:First the interface 34 of mandril main body 16 is connected with external compression air pipeline 33, injection molding machine will melt Plastic cement be injected into mold cavity 5 by cast gate 7, injection runner 9, after cooling be injecting products.Injection is completed to eject During injecting products, dynamic model 2 is detached with lower mode 4 with cover half 1, upper cores 3, at this time injecting products be also buckled on lower mode 4 with It is sticky in the switch for opening external compression air pipeline 33 together, and to 16 inside injecting compressed air of mandril main body, compression is empty Venthole 31 of the gas through mandril main body 16, air slot 32, housing 18 air admission hole 26 enter third hole 23, overcome the bullet of spring 20 Pushing dynamic crossette 29 drives thimble 19 to move downward, and making airtight section 27 of thimble 19 and 21 inner wall of trapezoidal hole, there are gaps, such as Fig. 6 Shown, compressed air just enters mold cavity 5 from third hole 23 through gas port 25, trapezoidal hole 21, in injecting products and lower mode 4 Between formed positive pressure air cushion layer, detach injecting products and lower mode 4;Later, opening for external compressed air pipe 33 is closed It closes, air pressure decline, thimble 19 reset under the action of spring 20 in third hole 23, and then, the top plate 13 of injection mold pushes again Mandril 15 moves upwards, and injecting products are ejected completely.
Since the thimble 19 of the pneumatic jacking-up device on mandril 15 is moved downward when opening, the air pressure of complete pneumatically makes Injecting products and lower mode 4 detach, and thimble 19 itself does not eject upwards as traditional air pins, therefore will not will be molded Product top is white, bursting or top deform;After injecting products and the separation of lower mode 4, when with mandril 15, injecting products are ejected completely, Since injecting products and lower mode 4 are not sticky in together, the ejecting force of mandril 15 also only overcome the gravity of injecting products and , injecting products top will not be deformed in white, bursting or top.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, it is of the invention Protection domain should be determined by the scope of protection defined in the claims.

Claims (3)

1. a kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device, including adjacent fixed half and moving half;It is equipped in the cover half Upper cores, dynamic model is interior to be equipped with lower mode, and the cavity that upper cores and lower mode surround is the mold cavity for injection molding;It is described Top clamping plate is equipped with above cover half, cast gate is equipped among top clamping plate, cast gate has sprue bush, sprue bush centre and upper cores The interior injection runner for being equipped with connection cast gate and mold cavity;Both sides are equipped with support block below the dynamic model, and dynamic model is arranged below in support block Seat board is equipped with perforation among Bottom clamp plate, and top plate is equipped among the support block of both sides, and the main mandril of injection molding machine passes through perforation and top plate phase Contact;It is provided through that dynamic model and lower mode are airtight to be slidably connected, lead to mold cavity, for ejecting injecting products on the top plate Mandril, the upper surface of the mandril is concordant with the upper surface of lower mode;The mandril includes strip, radial section is circle, Hollow mandril main body;It is characterized in that:
The mandril further includes pneumatic jacking-up device and connection bolt;
The pneumatic jacking-up device includes cylindrical housings, thimble and the spring that axial centre is equipped with circular through hole;Outside the housing Diameter is identical with the outer diameter of mandril main body;The second hole, third hole and the lower opening that the through-hole is sequentially increased by trapezoidal hole and aperture by On be connected in sequence down;The big mouth down of the trapezoidal hole, the aperture of big mouth is consistent with the aperture in the second hole, this is trapezoidal Hole is equipped with the gas port for leading to third hole along enclosure interior close to housing upper end;Third hole inner wall, which is equipped with, radially leads to shell Air admission hole outside body;The thimble is arranged in through-hole, and end face is concordant with housing upper surface thereon, the thimble by airtight section, Guide section, crossette and spring guide are connected in sequence;The airtight section of size, shape are consistent with trapezoidal hole and airtight match Close, guide section diameter matches and is slidably connected with the second hole, crossette with lower opening is airtight is slidably connected;The connection bolt is real The heart, outer diameter is identical with mandril body outer diameter, and the upper end is stretched into lower opening and connect with housing gas-tight thread, and the end end is from spring Lower end of the guide rod face suitable distance is so that thimble can move downward;The spring pocket outside spring guide, set on connection bolt on Between end face and crossette, and pushing crossette to third hole makes it withstand on third hole lower edge;Mandril is stretched into the connection bolt lower end It is connect inside main body upper end with its gas-tight thread;
The mandril body top, which is located at, to be equipped with below connection bolt lower face through mandril main body connection mandril body exterior Venthole;The housing, connection bolt and mandril body outer wall are equipped with the strip air slot of connection air admission hole and venthole.
2. a kind of mandril according to claim 1 carries the deep chamber injection mold of pneumatic jacking-up device, it is characterised in that:It is described Mandril main body lower end is equipped with the interface for being connected with external compression air pipeline.
3. a kind of mandril according to claim 1 carries the deep chamber injection mold of pneumatic jacking-up device, it is characterised in that:It is described The product of mold cavity injection molding is deep chamber product.
CN201810279551.4A 2018-04-01 2018-04-01 A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device Withdrawn CN108189331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810279551.4A CN108189331A (en) 2018-04-01 2018-04-01 A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device

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Application Number Priority Date Filing Date Title
CN201810279551.4A CN108189331A (en) 2018-04-01 2018-04-01 A kind of mandril carries the deep chamber injection mold of pneumatic jacking-up device

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109159384A (en) * 2018-09-20 2019-01-08 深圳市捷讯实业发展有限公司 Accurate automobile grills mold weldless trace injection structure
CN109159335A (en) * 2018-09-12 2019-01-08 刘丽春 A kind of white injection mould ejection device of anti-drawing of deep-cavity plastic part ejector sleeve recoil limit
CN109228176A (en) * 2018-10-31 2019-01-18 晋江嘉豪模具有限公司 A kind of degradable PLA injection mold
CN109605679A (en) * 2018-12-27 2019-04-12 苏州东颖精密模具有限公司 A kind of mold for the retainer for preventing injection molding from blocking
CN111152417A (en) * 2020-03-02 2020-05-15 滁州职业技术学院 Injection mold for cylinder head cover of automobile engine
CN112248389A (en) * 2020-10-13 2021-01-22 孙超月 Injection mold for producing high-strength accessories
CN112371946A (en) * 2020-10-20 2021-02-19 苏州恒荣精密机电有限公司 Thin-wall part die
CN113021797A (en) * 2021-04-27 2021-06-25 浙江天能精工科技有限公司 Quick demoulding device of gas cap for injection mold production
US20210213661A1 (en) * 2020-01-13 2021-07-15 Aptiv Technologies Limited Abrupt ejector plate stop
CN113320090A (en) * 2021-05-28 2021-08-31 上海华聚橡塑制品有限公司 Production injection mold of reagent tray
CN113619033A (en) * 2021-08-20 2021-11-09 江苏星科精密模具有限公司 Easy demoulding car light injection mold
CN115503196A (en) * 2022-09-27 2022-12-23 深圳市优瑞康模具科技有限公司 Injection mold ejection mechanism and injection mold

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109159335A (en) * 2018-09-12 2019-01-08 刘丽春 A kind of white injection mould ejection device of anti-drawing of deep-cavity plastic part ejector sleeve recoil limit
CN109159384B (en) * 2018-09-20 2023-06-13 深圳市捷讯实业发展有限公司 No weld mark injection structure of accurate car grid mould
CN109159384A (en) * 2018-09-20 2019-01-08 深圳市捷讯实业发展有限公司 Accurate automobile grills mold weldless trace injection structure
CN109228176A (en) * 2018-10-31 2019-01-18 晋江嘉豪模具有限公司 A kind of degradable PLA injection mold
CN109228176B (en) * 2018-10-31 2024-05-28 晋江市嘉豪模具股份有限公司 Degradable PLA injection mold
CN109605679A (en) * 2018-12-27 2019-04-12 苏州东颖精密模具有限公司 A kind of mold for the retainer for preventing injection molding from blocking
US20210213661A1 (en) * 2020-01-13 2021-07-15 Aptiv Technologies Limited Abrupt ejector plate stop
US11794393B2 (en) * 2020-01-13 2023-10-24 Aptiv Technologies (2) S.À R.L. Abrupt ejector plate stop
CN111152417B (en) * 2020-03-02 2021-07-02 滁州职业技术学院 Injection mold for cylinder head cover of automobile engine
CN111152417A (en) * 2020-03-02 2020-05-15 滁州职业技术学院 Injection mold for cylinder head cover of automobile engine
CN112248389A (en) * 2020-10-13 2021-01-22 孙超月 Injection mold for producing high-strength accessories
CN112248389B (en) * 2020-10-13 2022-08-16 浙江海卫科技股份有限公司 Injection mold for producing high-strength accessories
CN112371946A (en) * 2020-10-20 2021-02-19 苏州恒荣精密机电有限公司 Thin-wall part die
CN113021797A (en) * 2021-04-27 2021-06-25 浙江天能精工科技有限公司 Quick demoulding device of gas cap for injection mold production
CN113021797B (en) * 2021-04-27 2022-05-10 浙江天能精工科技有限公司 Quick demoulding device of gas cap for injection mold production
CN113320090A (en) * 2021-05-28 2021-08-31 上海华聚橡塑制品有限公司 Production injection mold of reagent tray
CN113320090B (en) * 2021-05-28 2022-08-30 上海华聚橡塑制品有限公司 Production injection mold of reagent tray
CN113619033B (en) * 2021-08-20 2023-06-06 江苏星科精密模具有限公司 Easily-demoulded automobile lamp injection mold
CN113619033A (en) * 2021-08-20 2021-11-09 江苏星科精密模具有限公司 Easy demoulding car light injection mold
CN115503196A (en) * 2022-09-27 2022-12-23 深圳市优瑞康模具科技有限公司 Injection mold ejection mechanism and injection mold

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Application publication date: 20180622

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