CN106393588A - Push plate and air poppet valve injection mold - Google Patents

Push plate and air poppet valve injection mold Download PDF

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Publication number
CN106393588A
CN106393588A CN201611033382.3A CN201611033382A CN106393588A CN 106393588 A CN106393588 A CN 106393588A CN 201611033382 A CN201611033382 A CN 201611033382A CN 106393588 A CN106393588 A CN 106393588A
Authority
CN
China
Prior art keywords
plate
mold
push pedal
pneumatic jack
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.)
Pending
Application number
CN201611033382.3A
Other languages
Chinese (zh)
Inventor
吴为柱
周徐金晟
葛洪金
周大军
陶炜
陈浩
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.)
Nanjing Huage Electronics and Automobile Plastic Industry Co Ltd
Original Assignee
Nanjing Huage Electronics and Automobile Plastic Industry 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 Nanjing Huage Electronics and Automobile Plastic Industry Co Ltd filed Critical Nanjing Huage Electronics and Automobile Plastic Industry Co Ltd
Priority to CN201611033382.3A priority Critical patent/CN106393588A/en
Publication of CN106393588A publication Critical patent/CN106393588A/en
Pending 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
    • 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
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • 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

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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 provides a push plate and air poppet valve injection mold which comprises a fixed mold base plate, a fixed mold plate, a movable mold base plate, a movable mold core, a movable mold core insert, a hot runner gating system and a cooling system. The push plate and air poppet valve injection mold is characterized in that the push plate and air poppet valve injection mold further comprises a set of L-shaped air poppet valves installed in the mold core insert, a push plate arranged between the movable mold base plate and the fixed mold plate and structurally matched with the movable mold base plate and the fixed mold plate, and oil cylinder systems arranged at the two ends of the movable mold base plate. The thickness of the push plate and air poppet valve injection mold is decreased by 40%, the push plate instead of mold support blocks and two ejector pin plates is adopted for the mold structure, solid steel and a base plate of an injection molding table of the mold bear injection molding pressure, sufficient force and strength are provided for guaranteeing that the mold plate does no deform, and ejection is more stable.

Description

A kind of push pedal pneumatic jack injection mold
Technical field
The present invention relates to a kind of push pedal pneumatic jack injection mold, can be used for the injection of the plastic outer product such as shell, end cap, cover plate Mould field.
Background technology
Have now many things to be all plastic products in our daily lifes, such as automobile, TV, mobile phone etc. almost I Have moulding on thinkable product, some mouldings are that structural member is contained in interiors of products, and some mouldings are functors Play specific function in the product, most moulding also is that appearance member is contained in outside product, for these appearance members Injecting products, because its appearance has aesthetic, will not allow to be placed into pouring point, push rod etc. one class on surface to produce vestige Feature.This class outward appearance injecting products typically requires the mode using pouring in down a chimney to enter to pour, and enters to pour from dynamic model side.Thus can guarantee that Product appearance does not have into cast gate and push rod vestige.
Typically doing the injection mold that outward appearance requires at present is according to common upside-down mounting mould design in industry, uses oil cylinder pushing Ejecting, the ejecting mechanism such as push rod, oblique top, jacking block is arranged on ejector retainner plate ejector retainner plate, because having 2 pieces of ejector retainner plates plus needs The distance of ejection, the comparison that general mould square iron all can do is high, substantially can accomplish the height of more than 120mm, set in this approach The general mould of mould of meter is partially thick.It is also corresponding lengthening that same hot flow path fills mouth, typically accomplishes about 450mm length, so meeting So that injection pressure is lost very big, often select the injection machine of larger specifications and models.Because this design needs to eject distance, So it is hanging, in order to avoid because vacantly leading to be caused greatly template by injection power to have a segment distance between moving platen and ejector retainner plate Deformation, common way can install support column between additional, support shuttering, but so sometimes injection pressure than larger when template still Can deform, cause injecting products to produce burr abnormal.Need using a large amount of push rod ejecting products additionally, due to such mould, equally Will also result in many abnormal, it is abnormal that such as common product top is white, top is convex and thimble is stuck etc..
Therefore, these variety of problems in the face of running into, need us to pass through continuous summary problem and be directed to various problems Technically improved and innovated, changed the design concept of current back flowing mold.
Content of the invention
It is an object of the invention to:For above-mentioned prior art exist problem, propose a kind of structure design more optimize, Easy to maintenance, stable performance and the push pedal pneumatic jack injection mold of low cost.
In order to reach object above, a kind of push pedal pneumatic jack injection mold according to the present invention, including top clamping plate, cover half Plate, Bottom clamp plate, mavable module core, mavable module core mold insert, hot flow path running gate system and cooling system;It is characterized in that:Also include pacifying One group of L-shaped pneumatic jack being contained in die core insert, the push pedal being arranged between Bottom clamp plate and solid plate and matching with its structure And it is arranged on the cylinder system at Bottom clamp plate two ends;The vertical bar of described L-shaped pneumatic jack from top to bottom sequentially passes through mavable module core, moves It is connected with the transverse bar of its bottom after the pore opening up on die holder plate;Described transverse bar is connected with the baric systerm power of injection machine Connect;Described push pedal is set in outside mavable module core and 1 °~3 ° of fit angle and mavable module core between;The oil cylinder top of described cylinder system Connector is provided with bar;Described connector is passed through dovetail groove and is mounted with push pedal two ends.
The technical scheme that the present invention limits further as:Described cooling system includes one group of water channel be arrangeding in parallel, adjacent Article two, the distance between water channel is 4~6 times of water channel diameter, and water channel is more than at least 2 times distances of its diameter apart from die cavity.
Further, the sectional area with product contact surface when pushing away product for the described push pedal is greater than 1mm.
Further, described cylinder system includes 2 oil cylinders, 2 connectors, 2 oil nozzles, 2 oil cylinder blocks and oil Road system.
Further, described pneumatic jack quantity is 4.
Further,:Described hot flow path running gate system is the needle valve type hot runner being arranged on Bottom clamp plate, including shunting The parts such as plate, heater, nozzle, hydraulic cylinder, terminal box, relay form.
Further, also include being fixedly mounted on the thermal insulation board above die holder plate and below Bottom clamp plate.
Further, also include the centring ring that is arranged on Bottom clamp plate.
Beneficial effects of the present invention:The part that so mould bears injection pressure is the seat of solid steel and injection molding machine Plate, has sufficiently large power and intensity to ensure that template is indeformable, thus avoiding mold injection molding to produce burr, so system of the present invention The mold injection molding made, all without there being burr to occur, will not occur that thimble is stuck, top is convex, does not also occur that die venting is bad to be made Product is become the phenomenon such as to burn, the present invention can realize the automation of Making mold production, easy-maintaining maintenance, no burr, no stub bar Etc. high-end requirement.
Push pedal its mold thickness of pneumatic jack mould of the present invention decreases 40%, and mould structure cancels support block cushion block and two pieces of tops Push pedal used instead by needle plate, and the part that such mould bears injection pressure is the seat board of solid steel and injection molding machine, has sufficiently large Power and intensity ensure that template is indeformable, and ejection is also more stable, optimize ejector retainner plate ejection top white the shortcomings of, thus avoiding mould Injection mo(u)lding produce burr, will not occur thimble stuck, top convex, do not occur yet die venting bad cause product to burn wait show As the present invention can realize the automation of Making mold production, easy-maintaining maintenance, no burr, the no high-end requirement such as stub bar.Push pedal With in mould mold insert cooperation section need to do fit angle because push pedal and interior mold insert can produce motion, do fit angle prevent because Produce heat workpiece burn for high-speed friction during motion, be also possible to prevent because processing or assembly precision not lead to simultaneously Mould is stuck.The mavable module core of determining of push pedal pneumatic jack mould is replaced using determining moving platen, can also increase the breaking area of die, so Not only can preferably control in machining accuracy, decrease the cost that subsequent artefacts cut burr, have in process of producing product Effect improves the yields 60% of product.Relatively conventional hot flow path contraction in length 60%, the cold burden in hot mouth decreases 50%, hot mouth price also reduces 40%, and often set TOP-TIP reduces more than about 10000 yuan of cost.This technology is become by we Work(examination is applied on many set end cover dies, in mould production cost, all comprehensively reduces more than 30%, every mold cost can To save 30,000 yuan;Produce 500,000 moulds by every mold, production cost can save 50,000 yuan;Open at least more than 10 sets classes every year As mould, every year can be with cost-effective more than 800,000 yuan.In terms of trial production situation, this several mold is all steady than Conventional flip mould Fixed, efficiency improves 20%, highly promotes the use of, and substitutes existing Design of Dies.
Brief description
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the inside overall structure diagram of the present invention.
Fig. 2 is the structural representation of push pedal.
Fig. 3 is the structural representation of pneumatic jack.
Fig. 4 is the structural representation of cooling system.
Fig. 5 is the structural representation of centring ring.
Fig. 6 is the structural representation of solid plate.
Fig. 7 is the structural representation of cylinder system.
The production product structure schematic diagram that Fig. 8-1,8-2 provide for embodiment.
Fig. 9 is the integral outer structural representation of inventive die.
Specific embodiment
Embodiment one
The present embodiment provide a kind of push pedal pneumatic jack injection mold, internal basic structure as shown in figs. 1-7,
Comprise structural heat insulation plate 7, Bottom clamp plate 6, solid plate 12, top clamping plate 1, centring ring 8, hot flow path running gate system 9, Mavable module core 10, mavable module core mold insert 11, cooling system 2;One group of L-shaped pneumatic jack 4 also including being arranged in die core insert 11, it is arranged on Push pedal 3 between Bottom clamp plate and solid plate and the cylinder system 5 being arranged on Bottom clamp plate two ends;Described L-shaped pneumatic jack perpendicular It is connected with the transverse bar of its bottom after the pore from top to bottom sequentially pass through mavable module core to bar, opening up on Bottom clamp plate;Described horizontal stroke Baric systerm power connector to bar and injection machine;On the oil cylinder push rod of described cylinder system, connector is installed;Described connection Device is passed through dovetail groove and is mounted with push pedal two ends;Between push pedal and mavable module core, the slide fit for 2 ° of fit angle combines.
Cylinder system includes 2 oil cylinders, 2 connectors, 2 oil nozzles, 2 oil cylinder blocks and oil piping system.Described cold But system includes one group of water channel be arrangeding in parallel, and the distance between adjacent two water channels are 5 times of water channel diameter, and water channel distance Die cavity is more than 2 times of distances of its diameter.
The making material of thermal insulation board 7 is mainly bakelite or glass fibre, plays prevention mold heat conduction on mould, Play heat-blocking action.Cylinder system is that mould ejection plate motion provides dynamic action, and it makes requirement needs to take up room little, provides Power is big and stably will have magnetic induction control system, and whole cylinder system mainly comprises 2 oil cylinders, 2 connectors, 2 oil Mouth, 2 oil cylinder blocks and oil piping system.Oil cylinder is arranged on the two ends of Bottom clamp plate, and oil nozzle is arranged on the centre of Bottom clamp plate, Need to ensure that oil hydraulic system supplies dynamic balance, cylinder ejector could balance.Pneumatic jack is product ejector member after injection mo(u)lding, main peace It is contained in die core insert, connected together by processing pore and injection machine baric systerm on die, Bottom clamp plate.The number of pneumatic jack Amount needs to determine, this product needs to do 4 pneumatic jacks according to the planform of product.
The effect that product is released in die cavity is played in described push pedal, the thrust that push pedal is provided by oil cylinder moving, in Between and die be slide fit combination, do 2 ° of fit angle prevent from moving stuck.The size that push pedal pushes away product will be prevented greater than 1mm Only too little lead to push pedal that product side is overthrown it is ensured that product smoothly ejects.
Described solid plate makes steel and will determine according to product plastic cement characteristic and quality requirement, generally use NAK80, S136, the mould steel such as 8407.The making steel of described centring ring need hard material, typically from SKD61, diameter 150mm, its Outer end is that mould installion plays positioning action on injection machine, and inner face processing will precisely be played hot flow path filling mouth envelope and pour effect.
Described hot flow path running gate system is a kind of needle valve type hot runner, and whole system mainly comprises flow distribution plate, heater, spray The parts such as mouth, hydraulic cylinder, terminal box, relay form, and hot flow path fills mouth and can pass through die and die core insert, and nozzle is opened in die cavity Interior on face, TOP-TIP is Major Systems of this ejecting push plate mould, is responsible for keeping plastic cement to be constantly in molten condition Lower entrance mold cavity, its largest benefit is to produce stub bar, saves plastics and saves artificial pruning stub bar cast gate.
Fig. 8-1,8-2 are the product needing injection mo(u)lding shell class.This product size is 173.50X 314.00X 38.00mm, belongs to medium-and-large-sized appearance member product, and front is appearance, and through comprehensive assessment, we select needle valve type hot runner, adopt Enter to pour from the product back side with the mode pouring in down a chimney mould.
Case study on implementation part of the present invention is as shown in figure 9, in addition to above-mentioned mould inside parts mechanism, the present invention also has it Its external agency, mainly by 13 counters, 14 hydraulic valves, 15 electromagnetic relays, 16 lock modules, 17 fine motion electronic switches, 18 hang The parts such as module, 19 hot flow path terminal boxes.13 counters are responsible for the production number of times of this mold of programming count, can be according to number According to carrying out periodic maintenance mould, statistics produces the quantity of product.14 hydraulic valves, are arranged on Hydraulic System for Injection Moulding Machine, to heat Runner oil cylinder provides power, meets the opening and closing of cast gate.15 electromagnetic relays, are arranged on Bottom clamp plate, it is signally attached to heat Inside runner, the opening and closing of hydraulic cylinder can be controlled thus controlling into pouring loading time.16 lock modules, are arranged on top clamping plate and move On die holder plate, typically do two pieces Mould operation side is corresponding with inverse operations side, the dynamic lock of mould together, prevent mould from existing Open during carry and hoist, protect mould and personal security.17 fine motion electronic switch assemblies, mainly comprise 1 fine motion electronic switch, 1 block that collides, 1 installation seat plate, whole assembly is arranged on Bottom clamp plate and push pedal.18 hang module, are arranged on top clamping plate On Bottom clamp plate, play balance die hoisting and use, need after die hoisting to pull down hanging module.19 hot flow path wiring Box, has heating system and temperature control system inside hot flow path, these information are sent in terminal box through data wire, terminal box There is power supply data slot, then these synchronizing information show over the display.
In addition to the implementation, the present invention can also have other embodiment.All employing equivalents or equivalent transformation shape The technical scheme becoming, all falls within the protection domain of application claims.

Claims (8)

1. a kind of push pedal pneumatic jack injection mold, including top clamping plate, solid plate, Bottom clamp plate, mavable module core, mavable module core mold insert, warm Runner running gate system and cooling system;It is characterized in that:Also include a group of L-shaped pneumatic jack, setting being arranged in die core insert Between Bottom clamp plate and solid plate and with its structure push pedal matching and the cylinder system being arranged on Bottom clamp plate two ends; Horizontal stroke with its bottom after the pore that the vertical bar of described L-shaped pneumatic jack from top to bottom sequentially passes through mavable module core, open up on Bottom clamp plate Connect to bar;Described transverse bar and the baric systerm power connector of injection machine;Described push pedal is set in outside mavable module core and and dynamic model 1 °~3 ° of fit angle between benevolence;On the oil cylinder push rod of described cylinder system, connector is installed;Described connector passes through ladder Shape groove is mounted with push pedal two ends.
2. push pedal pneumatic jack injection mold according to claim 1 it is characterised in that:Described cooling system include one group parallel The water channel of setting, between adjacent two water channels, distance is 4~6 times of water channel diameter, and water channel is more than its diameter extremely apart from die cavity Few 2 times of distances.
3. push pedal pneumatic jack injection mold according to claim 1 it is characterised in that:Described push pedal when pushing away product with product The sectional area of product contact surface is greater than 1mm.
4. push pedal pneumatic jack injection mold according to claim 1 it is characterised in that:Described cylinder system include 2 oil cylinders, 2 connectors, 2 oil nozzles, 2 oil cylinder blocks and oil piping system.
5. push pedal pneumatic jack injection mold according to claim 1 it is characterised in that:Described pneumatic jack quantity is 4.
6. push pedal pneumatic jack injection mold according to claim 1 it is characterised in that:Described hot flow path running gate system is to install Needle valve type hot runner on Bottom clamp plate, including parts such as flow distribution plate, heater, nozzle, hydraulic cylinder, terminal box, relays Composition.
7. the push pedal pneumatic jack injection mold according to any one of claim 1-6 it is characterised in that:Also include being fixedly mounted on Thermal insulation board above die holder plate and below Bottom clamp plate.
8. push pedal pneumatic jack injection mold according to claim 7 it is characterised in that:Also include being arranged on Bottom clamp plate Centring ring.
CN201611033382.3A 2016-11-17 2016-11-17 Push plate and air poppet valve injection mold Pending CN106393588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611033382.3A CN106393588A (en) 2016-11-17 2016-11-17 Push plate and air poppet valve injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611033382.3A CN106393588A (en) 2016-11-17 2016-11-17 Push plate and air poppet valve injection mold

Publications (1)

Publication Number Publication Date
CN106393588A true CN106393588A (en) 2017-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611033382.3A Pending CN106393588A (en) 2016-11-17 2016-11-17 Push plate and air poppet valve injection mold

Country Status (1)

Country Link
CN (1) CN106393588A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107310104A (en) * 2017-08-11 2017-11-03 深圳市天兴恒塑胶电子科技有限公司 The former body mould of deep chamber that a kind of air adds push pedal to eject jointly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102328405A (en) * 2011-10-09 2012-01-25 北京英特塑料机械总厂 Mechanism for preventing 'vacuumizing' in ejection process in injection mould
CN206317329U (en) * 2016-11-17 2017-07-11 南京华格电汽塑业有限公司 A kind of push pedal pneumatic jack injection mold

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102328405A (en) * 2011-10-09 2012-01-25 北京英特塑料机械总厂 Mechanism for preventing 'vacuumizing' in ejection process in injection mould
CN206317329U (en) * 2016-11-17 2017-07-11 南京华格电汽塑业有限公司 A kind of push pedal pneumatic jack injection mold

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
秦冠宇: ""透明盖子叠层注射模结构设计"", 《模具制造》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107310104A (en) * 2017-08-11 2017-11-03 深圳市天兴恒塑胶电子科技有限公司 The former body mould of deep chamber that a kind of air adds push pedal to eject jointly

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Application publication date: 20170215

RJ01 Rejection of invention patent application after publication