CN103934969B - There is the mold system of air assistant formation mechanism - Google Patents

There is the mold system of air assistant formation mechanism Download PDF

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Publication number
CN103934969B
CN103934969B CN201410176422.4A CN201410176422A CN103934969B CN 103934969 B CN103934969 B CN 103934969B CN 201410176422 A CN201410176422 A CN 201410176422A CN 103934969 B CN103934969 B CN 103934969B
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China
Prior art keywords
air
block
core
die cavity
thimble
Prior art date
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CN201410176422.4A
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Chinese (zh)
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CN103934969A (en
Inventor
汪晨
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.)
ZHEJIANG PRIMACY PLASTICS INDUSTRY Co Ltd
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ZHEJIANG PRIMACY PLASTICS INDUSTRY Co Ltd
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Priority to CN201410176422.4A priority Critical patent/CN103934969B/en
Publication of CN103934969A publication Critical patent/CN103934969A/en
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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
    • B29C45/1703Introducing an auxiliary fluid into the mould
    • B29C45/1704Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • 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
    • B29C45/401Ejector pin constructions or mountings
    • 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
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332Mountings or guides therefor; Drives therefor
    • B29C2045/334Mountings or guides therefor; Drives therefor several transversely movable mould parts driven by a single drive means

Abstract

The invention provides a kind of mold system with air assistant formation mechanism, comprise core, die cavity, thimble, ejector retainner plate, thimble fixed head, mould pin, lower compound plate, core is positioned at below die cavity, thimble is fixed on thimble fixed head, ejector retainner plate and thimble fixed head is stacked is integrated, mould pin is connected between core and lower compound plate, ejector retainner plate and thimble fixed head can be located between core and lower compound plate up or down, wherein, also comprise: air sparging block, in cylindricality, air duct is provided with along its length in inside, outer face is provided with the air intake be communicated with air duct, inner face is provided with a valve given prominence to for injecting pressure-air in die cavity, the side of core is provided with groove, and air sparging block embeds in groove, and valve then stretches in die cavity.The present invention can utilize air sparging block, while injection moulding, pressure-air is blown into die cavity, and then forms cavity in plastic product.

Description

There is the mold system of air assistant formation mechanism
Technical field
The present invention relates to injection mold technical field, particularly a kind of mold system with air assistant formation mechanism.
Background technology
Plastic product is throughout the various aspects of producing, live, and its importance is self-evident.When meeting structure, requirement of strength, yes, and that raw material expend is more few better, is conducive to reducing costs, is conducive to decreasing pollution.Very many plastic products all have larger edge, cross section, if formed hollow structure, obviously can save a lot of raw material, but there is no this type of equipment and process at present.
Summary of the invention
The object of the present invention is to provide a kind of mold system with air assistant formation mechanism, to form hollow structure in the component that the cross section of plastic cement products is larger.
In order to solve the problem, the invention provides following technical scheme:
A kind of mold system with air assistant formation mechanism, comprise core, die cavity, thimble, ejector retainner plate, thimble fixed head, mould pin, lower compound plate, described core is positioned at below described die cavity, described thimble is fixed on described thimble fixed head, described ejector retainner plate and described thimble fixed head is stacked is integrated, described mould pin is connected between described core and lower compound plate, described ejector retainner plate and thimble fixed head can be located between described core and lower compound plate up or down, wherein, also comprise: air sparging block, in cylindricality, air duct is provided with along its length in inside, outer face is provided with the air intake be communicated with described air duct, inner face is provided with a valve given prominence to for injecting pressure-air in described die cavity, the side of described core is provided with groove, and described air sparging block embeds in described groove, and described valve then stretches in described die cavity, briquetting, elongated, be two, embed in described groove, and be pressed on described air sparging block upper surface both sides respectively, slide block, is fixed on described die cavity, is positioned at the centre of two described briquettings and is pressed on the upper surface of described air sparging block, inclination guide pillar, described air sparging block is provided with an outward-dipping circular hole, described slide block is provided with the limiting hole consistent with described circular hole incline direction, and the upper end of described inclination guide pillar is arranged in described limiting hole, and the lower end of described inclination guide pillar is inserted in described circular hole.
According to above-mentioned a kind of preferred embodiment with the mold system of air assistant formation mechanism, the inner upper surface of described air sparging block is a boss projected upwards, and the inner of described briquetting extends to above described boss.
According to above-mentioned a kind of preferred embodiment with the mold system of air assistant formation mechanism, described inclination guide pillar is bolt shape.
Analyze known, the present invention can utilize air sparging block, while injection moulding, pressure-air is blown into die cavity, and then forms cavity in plastic product.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the perspective view of the embodiment of the present invention;
Fig. 3 is the air sparging block of the embodiment of the present invention and the plan structure schematic diagram of slide block combination;
Fig. 4 is the air sparging block of the embodiment of the present invention and side (perspective) structural representation of slide block combination;
Fig. 5 is the air sparging block plan structure schematic diagram of the embodiment of the present invention;
Fig. 6 is the air sparging block perspective view of the embodiment of the present invention;
Fig. 7 is the structural representation of air duct in the air sparging block of the embodiment of the present invention;
The plan structure schematic diagram of a kind of working of plastics that Fig. 8 produces for the embodiment of the present invention;
Fig. 9 is the cross-sectional view along A-A line in Fig. 8.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
As shown in Figure 1 and Figure 2, the embodiment of the present invention mainly comprises core 1, die cavity (not shown), thimble (not shown), ejector retainner plate 3, thimble fixed head 4, mould pin 2, lower compound plate 5, air sparging block 6.
Specifically, core 1 is positioned at below die cavity, and thimble is fixed on thimble fixed head 4, ejector retainner plate 3 and thimble fixed head 4 is stacked is integrated, mould pin 2 is connected between core 1 and lower compound plate 5, and ejector retainner plate 3 and thimble fixed head 4 can be located between core 1 and lower compound plate 5 up or down.For another example shown in 3-Fig. 7, air sparging block 6 is in cylindricality, and be provided with air duct 60 along its length in inside, outer face is provided with the air intake 600 be communicated with air duct 60, and inner face is provided with a valve 63 given prominence to for injecting pressure-air in die cavity.The side of core 1 is provided with groove 10, and air sparging block 6 embeds in groove 10, and valve 63 stretches in die cavity.
As Fig. 2, the present embodiment, and can production two pieces simultaneously for the production of the working of plastics 9 shown in Fig. 8, Fig. 9.Corresponding two the air sparging blocks 6 of every part product, the valve 63 of every two air sparging blocks 6 is corresponding with the two ends, edge of working of plastics 9, makes its edge be hollow structure, therefore, has four grooves 10 around core 1.
In order to stable air injection block 6 and after working of plastics 9 injection moulding completes, be convenient to the demoulding, the present embodiment also comprises briquetting 7, slide block 8 and inclination guide pillar 81.Wherein, briquetting 7 is elongated, is two, embeds in groove 10, and is pressed on air sparging block 6 upper surface both sides respectively.The two side of groove 10 inside is stepped simultaneously, and air sparging block 6 is positioned at bottom, and briquetting 7 part pressure is put on air sparging block 6, and another part pressure is put on the upper strata step of groove 10 sidewall.Slide block 8 is fixed on die cavity, and its upper surface is provided with two screws 800, is fixed in the lower surface lateral margin of die cavity by this screw 800.In groove 10, slide block 8 is positioned at the centre of two briquettings 7 and is pressed on the upper surface of air sparging block 6.Air sparging block 6 is provided with an outward-dipping circular hole 610, and slide block 8 is provided with consistent with circular hole 610 incline direction and mutually corresponding limiting hole 80, and the upper end of inclination guide pillar 81 is arranged in limiting hole 80, and the lower end of inclination guide pillar 81 is inserted in circular hole 610.In addition, the bottom surface of groove 10 also has and deep hole (not shown) that incline direction consistent corresponding with circular hole 610, the lower end being convenient to inclination guide pillar 81 is inserted.
More preferably, the inner upper surface of air sparging block 6 is a boss projected upwards 62, and the inner of briquetting 8 extends to above boss 62.Inclination guide pillar 81 is in bolt shape, and limiting hole 80 upper end is provided with a step, and whereby, after inclination guide pillar 81 inserts, it can not landing downwards.
As illustrated in figs. 8-9, working of plastics 9 has larger edge 91, a cross section, and it is hollow structure, and there is a through hole 910 inside, utilizes the injection mold of prior art, cannot form this through hole 910.And the present embodiment is when producing working of plastics 9, after air sparging block 6, briquetting 7, slide block 8, inclination guide pillar 81 are positioned over groove 10, now the valve 63 of air sparging block 6 stretches in die cavity, then matched moulds.Then injection moulding, is blown into pressure-air by air intake 600 simultaneously.After pressurize, die sinking.Now valve 63 is arranged in through hole 910, and die cavity upwards promotes, and band movable slider 8, inclination guide pillar 81 promote, inclination guide pillar 81 is owing to being heeling condition, and it will drive air sparging block 6 to the slide outside of groove 10, and now valve 63 departs from from through hole 910, so, smooth die sinking.
In sum, the present invention can utilize air auxiliary body, in the partial component of working of plastics, form hollow structure.Not only meet strength demand, and save material.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.

Claims (1)

1. one kind has the mold system of air assistant formation mechanism, comprise core, die cavity, thimble, ejector retainner plate, thimble fixed head, mould pin, lower compound plate, described core is positioned at below described die cavity, described thimble is fixed on described thimble fixed head, described ejector retainner plate and described thimble fixed head is stacked is integrated, described mould pin is connected between described core and lower compound plate, and described ejector retainner plate and thimble fixed head can be located between described core and lower compound plate up or down, it is characterized in that, also comprise:
Air sparging block, in cylindricality, is provided with air duct along its length in inside, and outer face is provided with the air intake be communicated with described air duct, and inner face is provided with a valve given prominence to for injecting pressure-air in described die cavity;
The side of described core is provided with groove, and described air sparging block embeds in described groove, and described valve then stretches in described die cavity;
Briquetting, elongated, be two, embed in described groove, and be pressed on described air sparging block upper surface both sides respectively;
Slide block, is fixed on described die cavity, is positioned at the centre of two described briquettings and is pressed on the upper surface of described air sparging block;
Inclination guide pillar, described air sparging block is provided with an outward-dipping circular hole, described slide block is provided with the limiting hole consistent with described circular hole incline direction, and the upper end of described inclination guide pillar is arranged in described limiting hole, and the lower end of described inclination guide pillar is inserted in described circular hole;
The inner upper surface of described air sparging block is a boss projected upwards, and the inner of described briquetting extends to above described boss;
Described inclination guide pillar is bolt shape.
CN201410176422.4A 2014-04-29 2014-04-29 There is the mold system of air assistant formation mechanism Active CN103934969B (en)

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CN103934969B true CN103934969B (en) 2015-08-19

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109693337A (en) * 2017-10-23 2019-04-30 吴景艳 A kind of production method of inner cavity partial vacuum clothes hanger

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101254641A (en) * 2007-02-28 2008-09-03 深圳市群达行精密模具有限公司 Large-sized thick gum place products gas-assist mold and injection molding method
CN102139528A (en) * 2011-03-08 2011-08-03 福州冠锋模具技术有限公司 Novel gas nozzle for gas-assisted molding
CN201931591U (en) * 2010-12-31 2011-08-17 深圳市华益盛模具有限公司 Air auxiliary glue feeding mould
CN201931607U (en) * 2010-12-03 2011-08-17 青岛英联精密模具有限公司 Air-assisted die of vehicle tail gate upright column

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101254641A (en) * 2007-02-28 2008-09-03 深圳市群达行精密模具有限公司 Large-sized thick gum place products gas-assist mold and injection molding method
CN201931607U (en) * 2010-12-03 2011-08-17 青岛英联精密模具有限公司 Air-assisted die of vehicle tail gate upright column
CN201931591U (en) * 2010-12-31 2011-08-17 深圳市华益盛模具有限公司 Air auxiliary glue feeding mould
CN102139528A (en) * 2011-03-08 2011-08-03 福州冠锋模具技术有限公司 Novel gas nozzle for gas-assisted molding

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