CN105856503A - Injection mold - Google Patents

Injection mold Download PDF

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Publication number
CN105856503A
CN105856503A CN201610219961.0A CN201610219961A CN105856503A CN 105856503 A CN105856503 A CN 105856503A CN 201610219961 A CN201610219961 A CN 201610219961A CN 105856503 A CN105856503 A CN 105856503A
Authority
CN
China
Prior art keywords
dynamic model
mentioned
hole
push rod
pin
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
Application number
CN201610219961.0A
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Chinese (zh)
Other versions
CN105856503B (en
Inventor
章琴琴
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.)
Foshan city Shunde District Xiangya Plastic Industrial Co. Ltd.
Original Assignee
章琴琴
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 章琴琴 filed Critical 章琴琴
Priority to CN201610219961.0A priority Critical patent/CN105856503B/en
Publication of CN105856503A publication Critical patent/CN105856503A/en
Application granted granted Critical
Publication of CN105856503B publication Critical patent/CN105856503B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Abstract

The invention discloses an injection mold, wherein an insert pin seat is arranged on a movable die mounting plate, a first stepped through hole is formed in the upper surface of the insert pin seat, a limiting bolt runs through the first stepped through hole, the threaded section part of the limiting bolt is fixed with the movable die mounting plate, the bolt head part forms set distance L with the corresponding hole step surface, the upper surface of the insert pin seat is connected with an insert pin running through an ejector rod push plate, a groove used for forming a protruding rib plate with a reserve buckling part on an injection product is formed in the insert pin, the opening direction of the groove keeps consistent with the die opening direction of the movable die, the groove section of the insert pin independently runs through the core of the movable die, and a notch used for running through the die cavity and the groove and having the bottom higher than the bottom of the corresponding groove in the die opening direction of the movable die is formed in the core of the movable die, corresponding to the opening direction of the groove. The injection mold can solve the technical problem of realization of forced demolding of a reverse buckling part on the injection product, and has the advantages of being low in production cost and long in life.

Description

A kind of injection mold
Technical field
The present invention relates to a kind of mould, particularly a kind of injection mold.
Background technology
Injection mold is a kind of instrument producing plasthetics.Although the structure of injection mold is due to plastics variety and property The types of energy, the shape of plastic products and structure and injector etc. are different and possibility is ever-changing, but its basic structure is Consistent.
Above-mentioned injection mold is mainly made up of running gate system, thermoregulating system, forming part and constitutional detail.Wherein said knot Structure part refers to constitute the various parts of mould structure, including: guiding, the demoulding, oblique top, in take out and the various parts of parting. Such as, as depicted in figs. 1 and 2, some product inner surface is formed and forms back-off position on protruding gusset, and described protruding gusset 18-1, and protruding gusset corresponding to this back-off position 18-1 form the injecting products 18 of breach with product inner surface junction, its Overall must utilize before being pushed out oblique top or in take out and allow the back-off position 18-1 of product first carry out the demoulding.But, above-mentioned In be previously mentioned oblique top and in take out and each exist for serious technical disadvantages, be exactly specifically the oblique side of ejecting of above-mentioned oblique top Smooth to needs, it is impossible to have other ribs or other features block, otherwise just have interference during lifter ejection, and oblique top because of Ejecting for oblique, the life-span is the highest, and processing maintenance cost is the highest;Interior pulling mechanism then takes up room bigger, limit Factor processed is the most, inside takes out to generally use in Angle Pin drives and takes out, and maintenance and manufacturing cost are higher, general it is not recommended that make With.
Therefore, applicant feels the need to above-mentioned existing injection mold structure is made the improvement of further result.
Summary of the invention
The invention aims to solve above-mentioned the deficiencies in the prior art and a kind of injection mold is provided, use above-mentioned note Mould produces inner surface and forms formation back-off position on protruding gusset, and described protruding gusset, and this back-off position is corresponding Protruding gusset and product inner surface junction form the injecting products of breach, and the back-off position on above-mentioned injecting products is capable of Time delay forced stripper mechanism.
To achieve these goals, a kind of injection mold designed by the present invention, including a dynamic model installing plate, a position In the push rod fixed plate that described dynamic mould fixing plate is unilateral, a push rod push pedal being positioned at described push rod fixed plate one side and one It is positioned at the dynamic model core rod that described push rod push pedal is unilateral, it is characterized in that being provided with pin seat, described pin on above-mentioned dynamic model installing plate Seat upper surface be provided with more than one first step through hole, wherein all run through in each first step through hole have axis with The die sinking direction of dynamic model keeps consistent caging bolt, and the thread segment part of each caging bolt and dynamic model installing plate are solid mutually Determining, and bolt head part is respectively formed a setpoint distance L with corresponding hole step surface, above-mentioned push rod fixed plate is provided with for above-mentioned edge Needle stand in the die sinking side of dynamic model upwardly through through hole, the upper surface of described pin seat connects to be had more than one and all runs through above-mentioned Push rod push pedal, and the pin that the direction of axis is all consistent with the holding of the die sinking direction of above-mentioned dynamic model, each pin is all provided with Having on injection molding product the type groove of protruding gusset with back-off position, the groove of each type groove offers direction all and dynamic model Die sinking direction keep consistent, and its top is all in communicating structure, and the type groove section on each pin the most independently runs through above-mentioned dynamic Correspond to the groove of above-mentioned type groove on mould core rod, and described dynamic model core rod offer direction and be equipped with for through die cavity and type groove, and The die sinking direction of dynamic model is above bottom it breach of the type trench bottom of correspondence;
When above-mentioned push rod push pedal is when carrying out stripping action, above-mentioned pin can be true in company with the maximum Top Runby L of push rod push pedal The bottom protecting its type groove exceeds the bottom of breach corresponding with type groove on dynamic model.
Above-mentioned being provided a kind of injection mold, its specific works principle is as follows:
Above-mentioned injection mold is after injection completes, and cover half and dynamic model die sinking, push rod push pedal drives the top in push rod fixed plate Bar is ejected by the opposite direction in the die sinking direction of dynamic model, and now pin described in said structure does not play the effect of push rod, it is contemplated that Forming back-off position on injecting products, the most above-mentioned pin can follow injecting products product to synchronize to eject direction along push rod A mobile segment distance, until the bottom of protruding gusset corresponding to injecting products upper buckle portion position exceeds the breach of dynamic model core rod completely Time, because of the position-limiting action of caging bolt, now pin cannot continue to move to push rod push pedal, and push rod then continues to eject injection and produces Product, product back-off position is just directly deviate from because of the bigoted deformation of pin from pin, to only, the injection mold of said structure Processing injecting products, the back-off position on injecting products realizes the step of time delay forced stripper mechanism and is just fully completed;Above-mentioned dynamic model During rollback, push rod push pedal pushes back pin.
Improving technical scheme as further structure, the lower surface of above-mentioned pin seat is provided with more than one second step Through hole, being equipped with to run through in each second step through hole has the helical spring of guide pillar, and the axis of each guide pillar is dynamic with above-mentioned The die sinking direction of mould all keeps consistent, and each guide pillar all runs through corresponding second step through hole, the two of described helical spring Side end respectively with the hole step surface of second step through hole accordingly and above-mentioned dynamic model installing plate phase apical grafting, and all in compression shape State.
Above-mentioned further structure is improved in technical scheme the lower surface at pin seat and is offered second step through hole, and the Being in the helical spring of compressive state in two step through-holes beyond the Great Wall, therefore a kind of injection mold provided in the present invention is being opened In mold process, when push rod is ejected by the opposite direction in the die sinking direction of dynamic model, above-mentioned helical spring be able to ensure that pin quickly by The direction that ejects of push rod is run;Meanwhile, after the injecting products on above-mentioned injection mold completes the demoulding, its pin will not quickly certainly Dynamic falling, in order to avoid there is unnecessary shock with dynamic model installing plate, causes rigid damage to pin.
As a kind of technology preferred version, above-mentioned pin seat entirety is inlayed to push rod fixed plate, and by running through between two parties A pair caging bolt fix with dynamic model installing plate, be respectively provided on two sides with a second step through hole at above-mentioned pin seat, In each second step through hole, plug connects one and runs through and have the helical spring of guide pillar respectively.
A kind of injection mold that the present invention obtains, it forms protruding gusset in order to producing inner surface in actual use, and Form back-off position on described protruding gusset, and protruding gusset corresponding to this back-off position is formed scarce with product inner surface junction The injecting products of mouth, the back-off position on described injecting products is capable of time delay forced stripper mechanism, and realizes above-mentioned injecting products It is little that the mechanism of upper back-off position forced stripper mechanism has possessed volume, simple in construction, low cost of manufacture, and the life-span is high, the restriction phase of use To the advantage such as less.
Accompanying drawing explanation
Fig. 1 is that in the present invention, involved a kind of inner surface forms formation back-off portion on protruding gusset, and described protruding gusset Position, and the structure section of protruding gusset corresponding to this back-off position and the injecting products of product inner surface junction formation breach shows It is intended to;
Fig. 2 is the close-up schematic view in Fig. 1 at A;
Fig. 3 embodiment 1 is provided the package assembly schematic diagram of a kind of injection mold;
Fig. 4 is the section structure schematic diagram that embodiment 1 is provided a kind of injection mold;
Fig. 5 is the section structure schematic diagram one that embodiment 1 is provided a kind of injection mold (removing cover half);
Fig. 6 is the close-up schematic view in Fig. 5 at B;
Fig. 7 is the close-up schematic view in Fig. 5 at C;
Fig. 8 is the part-structure schematic diagram that embodiment 1 is provided dynamic model and post rod mechanism in a kind of injection mold;
Fig. 9 is the close-up schematic view in Fig. 8 at D;
Figure 10 is the section structure schematic diagram two that embodiment 1 is provided a kind of injection mold (removing cover half);
Figure 11 is the close-up schematic view in Figure 10 at E;
Figure 12 is the section structure schematic diagram that embodiment 2 is provided a kind of injection mold (removing cover half);
Figure 13 is the close-up schematic view in Figure 12 at F.
In figure: cover half installing plate 1, cover half core rod 2, cover half 3, dynamic model core rod 4, dynamic model 5, dynamic model installing plate 6, pin seat 7, First step through hole 8, caging bolt 9, thread segment part 9-1, bolt head part 9-2, push rod fixed plate 10, through hole 10-1, top Bar push pedal 11, pin 12, type groove 13, breach 14, second step through hole 15, guide pillar 16, helical spring 17, injecting products 18, fall Button position 18-1.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in figs. 3-9, a kind of injection mold provided in the present embodiment, including a cover half installing plate 1, one is provided with calmly The cover half 3 of mould core rod 2, a dynamic model 5 being provided with dynamic model core rod 4, a post rod mechanism and a dynamic model installing plate 6;
Wherein, being provided with pin seat 7 on above-mentioned dynamic model installing plate 6, the middle position of the upper surface of described pin seat 7 is provided with one To first step through hole 8, wherein run through in each first step through hole 8 and have axis to keep phase with the die sinking direction of dynamic model 5 Consistent caging bolt 9, thread segment part 9-1 of each caging bolt 9 fixes with dynamic model installing plate 6, and bolt head part 9-2 is respectively formed setpoint distance L with corresponding hole step surface, and the push rod fixed plate 10 in above-mentioned top panel mechanism is provided with for above-mentioned edge Needle stand 7 in the die sinking side of dynamic model 5 upwardly through through hole 10-1, above-mentioned pin seat 7 is integrally located in this through hole 10-1, described edge The upper surface of needle stand 7 connects the push rod push pedal 11 all run through in above-mentioned top panel mechanism a pair, and the direction of axis is all with upper State the pin 12 that the die sinking direction holding of dynamic model 5 is consistent, each pin 12 is equipped with on injection molding product 18 band Have the type groove 13 of the protruding gusset of back-off position 18-1, the groove of each type groove 13 to offer the die sinking direction all with dynamic model 5, the direction to protect Holding consistent, and its top is all in communicating structure, the type groove on each pin 12 13 sections the most independently runs through above-mentioned dynamic model core rod 4, And the groove that correspond to above-mentioned type groove 13 on described dynamic model core rod 4 offers direction and is equipped with for through die cavity and type groove 13, and It is above the breach 14 bottom corresponding type groove 13 bottom it on the die sinking direction of dynamic model 5;
When above-mentioned push rod push pedal 11 is when carrying out stripping action, and above-mentioned pin 12 is in company with the maximum Top Runby L of push rod push pedal 11 It is able to ensure that the bottom of its type groove 13 exceeds the bottom of breach 14 corresponding with type groove 13 on dynamic model 5.
Above-mentioned being provided a kind of injection mold, its specific works principle is as follows:
As illustrated in figs. 5-7, above-mentioned injection mold is after injection completes, and cover half 3 and the die sinking of both dynamic models 5, push rod push pedal 11 drives Push rod in push rod fixed plate 10 is ejected by the opposite direction in the die sinking direction of dynamic model 5, and now pin 12 described in said structure is also Not playing the effect of push rod, it is contemplated that form back-off position 18-1 on injecting products 18, the most above-mentioned pin 12 can and then be molded Product 18 synchronizes to move a segment distance, as shown in Figure 10 and Figure 11, until detaining on injecting products 18 along the direction that ejects of push rod When the bottom of the protruding gusset that position is corresponding exceeds the breach 14 of dynamic model core rod 4 completely, because of the position-limiting action of caging bolt 9, this Time pin 12 cannot continue to move to push rod push pedal 11, push rod then continues to eject injecting products 18, product back-off position 18-1 Because the bigoted deformation of pin is directly deviate from from pin 12, to only, the injection mould processing injecting products 18 of said structure, Back-off position 18-1 on injecting products 18 realizes the step of time delay forced stripper mechanism and is just fully completed;During above-mentioned dynamic model 5 rollback, 11 pins 12 of push rod push pedal push back.
Embodiment 2:
A kind of injection mold provided in the present embodiment, its general structure is consistent with embodiment 1, such as Figure 12 and Figure 13 institute Show, but the present embodiment is equipped with on two side positions of the lower surface of described pin seat 7 a second step through hole 15, Be equipped with in second step through hole 15 and run through the helical spring 17 having guide pillar 16, the axis of each guide pillar 16 all with above-mentioned dynamic model The die sinking direction of 5 keeps consistent, and each guide pillar 16 all runs through corresponding second step through hole 15, each helical spring 17 Both side ends respectively with the hole step surface of corresponding second step through hole 15 and above-mentioned dynamic model installing plate 6 phase apical grafting, and all in pressure Contracting state.
In technique scheme, the lower surface at pin seat 7 offers second step through hole 15, and at second step through hole 15 Being in the helical spring 17 of compressive state the most beyond the Great Wall, therefore a kind of injection mold provided in the present embodiment is in die sinking process In, when push rod is ejected by the opposite direction in the die sinking direction of dynamic model 5, above-mentioned helical spring 17 is able to ensure that pin 12 is quickly by top The direction that ejects of bar is run;Meanwhile, after the injecting products 18 on above-mentioned injection mold completes the demoulding, its pin 12 will not be quick Automatic fall-back, in order to avoid there is unnecessary shock with dynamic model installing plate 6, causes the rigid damage of pin.

Claims (2)

1. an injection mold, including a dynamic model installing plate, one is positioned at the push rod fixed plate that described dynamic mould fixing plate is unilateral, One is positioned at the unilateral push rod push pedal of described push rod fixed plate and a dynamic model core rod being positioned at described push rod push pedal one side, its Feature is to be provided with pin seat on above-mentioned dynamic model installing plate, and the upper surface of described pin seat is provided with more than one first step and leads to Hole, wherein all runs through the spacing spiral shell having axis consistent with the holding of the die sinking direction of dynamic model in each first step through hole Bolt, the thread segment part of each caging bolt fixes with dynamic model installing plate, and bolt head part is equal with corresponding hole step surface Form a setpoint distance L, above-mentioned push rod fixed plate be provided with for above-mentioned pin seat in the die sinking side of dynamic model upwardly through through hole, The upper surface of described pin seat connects to be had more than one and all runs through above-mentioned push rod push pedal, and the direction of axis is all dynamic with above-mentioned The die sinking direction of mould keeps consistent pin, each pin is equipped with on injection molding product with back-off position The type groove of protruding gusset, it is all consistent with the holding of the die sinking direction of dynamic model that the groove of each type groove offers direction, and its top all in Communicating structure, the type groove section on each pin the most independently run through correspond on above-mentioned dynamic model core rod, and described dynamic model core rod above-mentioned The groove of type groove is offered direction and is equipped with for through die cavity and type groove, and is above correspondence bottom it on the die sinking direction of dynamic model The breach of type trench bottom;
When above-mentioned push rod push pedal is when carrying out stripping action, above-mentioned pin can be true in company with the maximum Top Runby L of push rod push pedal The bottom protecting its type groove exceeds the bottom of breach corresponding with type groove on dynamic model.
A kind of injection mold the most according to claim 1, is characterized in that the lower surface of above-mentioned pin seat is provided with more than one Second step through hole, being equipped with to run through in each second step through hole has the helical spring of guide pillar, the axis of each guide pillar Line all keeps consistent with the die sinking direction of above-mentioned dynamic model, and each guide pillar all runs through corresponding second step through hole, described spiral shell Rotation spring both side ends respectively with the hole step surface of second step through hole accordingly and above-mentioned dynamic model installing plate phase apical grafting, and All in compressive state.
CN201610219961.0A 2016-04-11 2016-04-11 A kind of injection mold Expired - Fee Related CN105856503B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610219961.0A CN105856503B (en) 2016-04-11 2016-04-11 A kind of injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610219961.0A CN105856503B (en) 2016-04-11 2016-04-11 A kind of injection mold

Publications (2)

Publication Number Publication Date
CN105856503A true CN105856503A (en) 2016-08-17
CN105856503B CN105856503B (en) 2018-01-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108582697A (en) * 2018-05-24 2018-09-28 宁波方正汽车模具股份有限公司 Automobile door panel injection mold demoulding mechanism
CN111408723A (en) * 2020-03-05 2020-07-14 宁波生久柜锁有限公司 Special-shaped spiral core-pulling die
CN112519146A (en) * 2020-11-20 2021-03-19 上海良勤实业有限公司 Injection mold convenient to drawing of patterns

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101108517A (en) * 2006-07-18 2008-01-23 明基电通信息技术有限公司 Push-out mechanism
CN101992518A (en) * 2009-08-20 2011-03-30 汉达精密电子(昆山)有限公司 Plastic mould secondary ejection mechanism
CN102039642A (en) * 2009-10-23 2011-05-04 浙江亨达塑料模具有限公司 Secondary ejection mechanism of car rearview mirror hull
CN102285034A (en) * 2010-06-21 2011-12-21 汉达精密电子(昆山)有限公司 Secondary ejection forced release mechanism
CN102357952A (en) * 2011-08-15 2012-02-22 苏州金安精密模塑有限公司 Simple secondary ejection device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101108517A (en) * 2006-07-18 2008-01-23 明基电通信息技术有限公司 Push-out mechanism
CN101992518A (en) * 2009-08-20 2011-03-30 汉达精密电子(昆山)有限公司 Plastic mould secondary ejection mechanism
CN102039642A (en) * 2009-10-23 2011-05-04 浙江亨达塑料模具有限公司 Secondary ejection mechanism of car rearview mirror hull
CN102285034A (en) * 2010-06-21 2011-12-21 汉达精密电子(昆山)有限公司 Secondary ejection forced release mechanism
CN102357952A (en) * 2011-08-15 2012-02-22 苏州金安精密模塑有限公司 Simple secondary ejection device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108582697A (en) * 2018-05-24 2018-09-28 宁波方正汽车模具股份有限公司 Automobile door panel injection mold demoulding mechanism
CN108582697B (en) * 2018-05-24 2020-01-17 宁波方正汽车模具股份有限公司 Demoulding mechanism of automobile door plate injection mould
CN111408723A (en) * 2020-03-05 2020-07-14 宁波生久柜锁有限公司 Special-shaped spiral core-pulling die
CN111408723B (en) * 2020-03-05 2022-03-15 宁波生久科技有限公司 Special-shaped spiral core-pulling die
CN112519146A (en) * 2020-11-20 2021-03-19 上海良勤实业有限公司 Injection mold convenient to drawing of patterns
CN112519146B (en) * 2020-11-20 2022-09-13 上海良勤实业有限公司 Injection mold convenient to drawing of patterns

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Inventor after: Zhu Mingkun

Inventor before: Zhang Qinqin

CB03 Change of inventor or designer information
TA01 Transfer of patent application right

Effective date of registration: 20171225

Address after: 528000 first floor of No. 3, No. 3, two horizontal road, zhongjiye Road, Ronggui Xiao Huang nurseries, Shunde District, Foshan City, Guangdong

Applicant after: Foshan city Shunde District Xiangya Plastic Industrial Co. Ltd.

Address before: 315600 Zhejiang city of Ningbo province Ninghai County Yuelong streets Huashan Jiayuan 2 buildings 1201

Applicant before: Zhang Qinqin

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180119

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CF01 Termination of patent right due to non-payment of annual fee