CN106273279B - A kind of mould for plastics of cylinder and its irregular three helicla flutes in side - Google Patents

A kind of mould for plastics of cylinder and its irregular three helicla flutes in side Download PDF

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Publication number
CN106273279B
CN106273279B CN201611008696.8A CN201611008696A CN106273279B CN 106273279 B CN106273279 B CN 106273279B CN 201611008696 A CN201611008696 A CN 201611008696A CN 106273279 B CN106273279 B CN 106273279B
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China
Prior art keywords
die holder
plate
cavity
sliding block
cavity plate
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CN201611008696.8A
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Chinese (zh)
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CN106273279A (en
Inventor
左文曲
王鹏飞
魏万斌
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China one development 850 Electronics Co., Ltd.
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SHIJIAZHUANG NO850 ELECTRONIC Co Ltd
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Priority to CN201611008696.8A priority Critical patent/CN106273279B/en
Publication of CN106273279A publication Critical patent/CN106273279A/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
    • B29C45/26Moulds
    • B29C45/32Moulds having several axially spaced mould cavities, i.e. for making several separated 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
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332Mountings or guides therefor; Drives therefor
    • 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 present invention provides a kind of mould for plastics of irregular three helicla flutes of cylinder and its side, including cover half and the dynamic model that is involutory with the cover half;Cover half includes upper die holder and determines cavity plate, and upper die holder is connect with former, and upper die holder is parallel with cavity plate is determined and is connected through pulling plate guide post;Inclined guide pillar, running channel and two sizing chambers being vertically arranged are provided on determining cavity plate;Dynamic model includes lower die holder, dynamic cavity plate, support plate and ejecting mechanism, and the movable plate connection of lower die holder and former, lower die holder is parallel with upper die holder, and dynamic cavity plate is equipped with cavity plate is determined;Ejector half core, sliding block and sprue puller are provided in dynamic cavity plate, sliding block, ejector half core and sizing chamber are collectively formed for being molded to form the cavity of workpiece.The present invention is by changing slide block structure, using spot pouring mouth, and realizes a mould two pieces, simple in structure, easy to operate, easily ensures product precision and presentation quality is good, reduce hand labor intensity, improve working efficiency, have prospects for commercial application.

Description

A kind of mould for plastics of cylinder and its irregular three helicla flutes in side
Technical field
The present invention relates to a kind of cylinder and helicla flute molding die, a kind of cylinder and its non-rule in side are concretely related to The then mould for plastics of three helicla flutes.
Background technology
The helicla flute of cylindrical side can realize multiple functions, such as meet specific transmission track, the special decorative pattern of product surface and Heat dissipation etc., is widely used in packing device, motor vehicle components, product mold etc..The cylinder of helicla flute is carried in processing side When, common mold is a mould one, and production efficiency is low, and the precision of helicla flute is difficult to ensure.Existing mould structure Complexity, the only sliding block of mold cavity forming part are in processing, it is necessary to which rough turn, wire cutting, welding, smart car, quenching, which advances to drive a vehicle, to be added Work is quenched again after molding, tedious process, also will produce modification error;In addition it is also necessary to carry out electrical spark working to sliding block Work carries out electrical spark working working hour, and electrode is not easy centering, and success rate is low, and mould and die accuracy is caused to be difficult to control, to make to produce Part carries condensate, needs to machine the condensate that vehicle is gone on part, takes a lot of work laborious, have an effect on the presentation quality of workpiece.
Invention content
It is an object of the invention to provide a kind of mould for plastics of irregular three helicla flutes of cylinder and its side, with Solve the problems such as Work-piece burr that existing mold is produced is serious, and process is more, and efficiency is low, of poor quality.
The object of the present invention is achieved like this:
A kind of mould for plastics of cylinder and its irregular three helicla flutes in side, including cover half and with the cover half phase The dynamic model of pairing;
The cover half includes upper die holder and determines cavity plate, and the upper die holder is connect with former, the upper die holder with it is described It is parallel to each other to determine cavity plate, and is connected through pulling plate guide post;It is described determine to be provided with inclined guide pillar in cavity plate, running channel and two are vertically arranged Sizing chamber;Sprue bush is installed on the upper die holder, the sprue bush is connected to through running channel with cast gate and the sizing chamber;
The dynamic model includes lower die holder, dynamic cavity plate, support plate and ejecting mechanism, the movement of the lower die holder and former Plate connects, and the lower die holder is parallel with the upper die holder, and the dynamic cavity plate is determined cavity plate and be equipped with described;It is set in dynamic cavity plate It is equipped with ejector half core, sliding block and sprue puller, the sliding block, ejector half core and sizing chamber are collectively formed for being molded to form the type of workpiece Chamber, the ejector half core are arranged on the support plate, and V-groove is provided in the upper surface of the sliding block, so that the inclined guide pillar is dialled It moves and compresses the sliding block;It is provided with parallels between the support plate and lower die holder, to form the movement of the ejecting mechanism Space, the dynamic cavity plate, support plate, parallels are fixedly connected with lower die holder;There is the ejecting mechanism push rod, the push rod to pass through The ejector half core and the bottom for reaching cavity, to release the shaping workpiece of injection molding;The sprue puller is located at the sprue bush Underface, to deviate from runner condensate.
The sliding block is put together by three valve sliding blocks, is included take-up housing per valve sliding block, is arranged on the take-up housing The molding edge that oriented side is stretched out, the molding constitute along by 120 ° of arc surfaces and molding inclined-plane, are arranged on 120 ° of arc surfaces There is spiral salient corresponding with the irregular helicla flute in shaping workpiece side;It is provided with V-groove in the upper surface of the take-up housing, with Toilet states inclined guide pillar and stirs and compress the sliding block;It molds and is provided with below edge with the molding along stretching on the take-up housing The consistent blind hole in direction, to accommodate the spring for detaching the sub- sliding block and shaping workpiece;The three common splits of valve sliding block are formed Cylindrical cavity has spiral prominence corresponding with the irregular helicla flute in shaping workpiece side on the inner wall of cylindrical cavity It rises.
The sub- sliding block further includes sliding block cover board, is provided with vertical through-hole on the take-up housing, the take-up housing via Through-hole is fixedly connected with the sliding block cover board.
The ejecting mechanism includes push rod, release link and pushes away solid plate, and the push rod and release link are mutually parallel, respective One end be separately fixed at it is described push away in solid plate, and push away that solid plate is vertical with described, the push rod reaches the bottom of cavity, in order to push away Go out workpiece;Release link is in concordant with dynamic cavity plate upper end when molding state, and solid plate reset is pushed away when in order to mold.
In the knock-out pad for pushing away and being fixedly connected with below solid plate and preventing the push rod and release link from falling off.
The back side is arranged in dynamic model in the support plate, and the support plate is parallel with the lower die holder, and the ejector half core is set It is placed on it;The dynamic cavity plate, support plate, parallels and lower die holder are fastenedly connected using screw.
The present invention forms cylindrical cavity, in cylindrical cavity by changing slide block structure by three valve sliding block splits There is spiral salient corresponding with the irregular helicla flute in shaping workpiece side on wall, make sliding block, ejector half core and the common shape of cavity At for being molded to form the cavity of workpiece, and it is two chamber of a mould, while with one voice using point, obtained shaping workpiece size essence Standard, good appearance, the automatic dialysis of cast gate save labor without manually removing cast gate, it is easy to accomplish automation mechanized operation.
The configuration of the present invention is simple, it is easy to operate, it is suitable for numerical control mill, avoids electrical discharge machining, product after molding is follow-up Manufacturing procedure is few, easily ensures product precision and presentation quality is good, reduces hand labor intensity, improves working efficiency, reduces production Cost has prospects for commercial application.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is to determine the dynamic model schematic top plan view after cavity plate is detached with dynamic cavity plate.
Fig. 3 is the structural schematic diagram of sliding block.
Fig. 4 is the structural schematic diagram of single-lobe sliding block.
Fig. 5 is the structural schematic diagram of the mould two pieces with cast gate.
Fig. 6 is the dimensional structure diagram of shaping workpiece.
Fig. 7 is the planar structure schematic diagram of shaping workpiece, and I-I is die joint in figure.
In figure, 1, sprue bush, the 2, first screw, 3, upper die holder, 4, inclined guide pillar, 5, sliding block, the 6, second screw, 7, dynamic chamber Plate, 8, spring, 9, sliding block cover board, 10, release link, 11, support plate, 12, push away solid plate, 13, knock-out pad, 14, third screw, 15, Lower die holder, the 16, the 4th screw, 17, parallels, 18, push rod, 19, pulling plate guide post, 20, guide post, 21, ejector half core, 22, guide sleeve, 23, Sprue puller, 24, determine cavity plate.
Specific implementation mode
As shown in Fig. 1 ~ 5, the invention mainly comprises cover half and dynamic model, wherein cover half includes upper die holder 3 and determines cavity plate 24; Dynamic model includes lower die holder 15, dynamic cavity plate 6, support plate 11, parallels 17 and ejecting mechanism.
In cover half, upper die holder 3 is connect with former, is determined cavity plate 24 and is arranged in parallel with upper die holder 3, and the two passes through drawing Plate guide post 19 connects, after completing to be molded, to make upper die holder 3 be detached with cavity plate 24 is determined by pulling plate guide post 19.Determining cavity plate 24 On be provided with the sizing chamber of inclined guide pillar 4, running channel and two vertically symmetrical settings, the lower end of inclined guide pillar 4 is V-shaped, through first Screw 2, which is fixedly connected on, to be determined in cavity plate 24.Inclined guide pillar 4 is stirred and pressed slider 5, ensures the essence of the shape and size of shaping workpiece Exactness.Sprue bush 1 is installed in the center of upper die holder 3, sprue bush 1 is connected to cast gate and sizing chamber via running channel, will melt Plastics be injected into mould inside from the nozzle of injection molding machine.To ensure that product appearance without apparent gate vestiges and can automate behaviour Make, improve productivity, using spot pouring mouth, and two cavities are set in a mold, realize a mould two pieces.
In dynamic model, lower die holder 15 is connect with the movable plate of former, and lower die holder 15 is parallel to upper die holder 3, in upper mold It is provided between seat 3 and lower die holder 15 and in parallel determines cavity plate 24 and dynamic cavity plate 6.Dynamic cavity plate 6 is equipped with cavity plate 24 is determined, It is provided with guide sleeve 22 on determining cavity plate 24, guide post 20 is provided in dynamic cavity plate 6, guide post 20 collectively forms mold with guide sleeve 22 Guider, with ensure to move cavity plate 6 with determine cavity plate 24 with accurate position pairing with detach.The back side is additionally provided with branch in dynamic model Board 11, support plate 11 is parallel with lower die holder 15, and parallels 17 is additionally provided between support plate 11 and lower die holder 15, so that bearing The space of ejecting mechanism is formed between plate 11 and lower die holder 15.Support plate 11, lower die holder 15, parallels 17 and dynamic cavity plate 6 pass through It is fixedly connected by third screw 14.Ejector half core 21, sliding block 5 and sprue puller 23 are provided in dynamic cavity plate 6, ejector half core 21 is two It is a, it is symmetricly set on support plate 11.Support plate 11 can the parts abjection such as anti-stopper-type core 21, guide post 20, enhance these parts Stability and bear ejector half core 21 transmit come briquetting pressure.According to the structure of product, for exit orifice concentricity, ejector half in guarantee Core 21 uses monolithic construction, and in order to improve the service life of mold, ejector half core 21 is made using SKD61, it can also be used His material preparation ejector half core 21.
The periphery of ejector half core 21 is provided with sliding block 5, sliding block 5 is put together by three valve sliding blocks.Include per valve sliding block Take-up housing and sliding block cover board 9 are provided with the molding edge stretched out to side on take-up housing, and molding is along by 120 ° of arc surfaces and molding Inclined-plane is constituted, and spiral salient corresponding with the irregular helicla flute in shaping workpiece side is provided on 120 ° of arc surfaces;In cunning Block upper surface is provided with V-groove, so that inclined guide pillar corresponding with V-groove 4 stirs simultaneously pressed slider;Edge is molded on take-up housing Lower section be provided with molding along the consistent blind hole in direction is stretched out, for accommodating spring 8, with after the completion of injection molding, in inclined guide pillar 4 Under toggle action, sliding block 5 is made to deviate from shaping workpiece;It is opened on take-up housing there are four vertical through-hole, to be connected using the second screw 6 Take-up housing and sliding block cover board 9 are connect, pincers worker installation operation is convenient for.The molding of three valve sliding blocks forms cylindrical cavity along split, There is spiral salient corresponding with the irregular helicla flute in shaping workpiece side, with the shape after injection molding on the inner wall of cylindrical cavity At cylindrical and its side irregular helicla flute.The slide block structure of this form is simple, can be achieved under the action of inclined guide pillar 4 It compresses and stirs, ensure the precision of injection-molded item.Ejector half core 21, sliding block 5 and sizing chamber are collectively formed for injection-molded work Cavity, to obtain shaping workpiece.
After the completion of injection molding, then need to push away the shaping workpiece of injection molding out of mold by sprue puller 23 and ejecting mechanism Go out, sprue puller 23 is located at the underface of sprue bush 1, to deviate from runner condensate;Ejecting mechanism include push rod 18, release link 10 with And solid plate 12 is pushed away, push rod 18 and release link 10 are mutually parallel, and respective one end, which is separately fixed at, to push away in solid plate 12, and solid with pushing away Plate 12 is vertical, and the other end of push rod 18 passes through ejector half core 21 to reach cavity bottom, in order to release the shaping workpiece of injection molding.Push rod 18 can release the shaping workpiece on ejector half core 21 after sliding block 5 is detached with shaping workpiece, and release link 10 then can be in dynamic model, cover half When molding, makes to push away solid plate 12 and knock-out pad 13 resets.It is resetted for the ease of pushing away solid plate 12 when molding, release link 10 is in molding state 6 upper end of Shi Yudong cavity plates is concordant.It is additionally provided with knock-out pad 13 in the lower section for pushing away solid plate 12, is used for anti-throw-out lever 18 and release link 10 It falls off, and knock-out pad 13 is fixedly connected with solid plate 12 is pushed away through the 4th screw 16.
The present invention the course of work be:It is completed in cover half, dynamic model molding, after injection, pressurize, cooling, first, along upper mold Seat 3 is detached with 24 die joint spacing of cavity plate is determined, and under the action of sprue puller 23, and runner condensate is detached from sprue bush 1;Continue out Mould, 19 stop of pulling plate guide post are determined cavity plate 24 and are detached with dynamic cavity plate 6, and under the toggle action of inclined guide pillar 4, sliding block 5 is from shaping workpiece Helicla flute in deviate from, die joint be Fig. 7 in I-I at;Later, dynamic model, cover half are separated, and shrinkage of injection molded parts simultaneously stays in ejector half core On 21, then under the action of ejecting mechanism, push rod 18 pushes shaping workpiece, and shaping workpiece is made to be detached from ejector half core 21;Finally, fixed Mould, dynamic model molding, release link 10 make ejecting mechanism reset, and die joint closes up, into the injection molding of next workpiece.Using the present invention Obtained product is the cylinder that side carries irregular three helicla flutes, and structure is as shown in Figure 6 and Figure 7.

Claims (5)

1. a kind of mould for plastics of irregular three helicla flutes of cylinder and its side, which is characterized in that including cover half and with The dynamic model that the cover half is involutory;
The cover half includes upper die holder and determines cavity plate, and the upper die holder is connect with former, and the upper die holder determines chamber with described Plate is parallel to each other, and is connected through pulling plate guide post;It is described determine to be provided with inclined guide pillar in cavity plate, running channel and two are vertically arranged determines Cavity;Sprue bush is installed on the upper die holder, the sprue bush is connected to via running channel with cast gate and the sizing chamber;
The dynamic model includes lower die holder, dynamic cavity plate, support plate and ejecting mechanism, the movable plate company of the lower die holder and former It connects, the lower die holder is parallel with the upper die holder, and the dynamic cavity plate is determined cavity plate and be equipped with described;It is provided in dynamic cavity plate Ejector half core, sliding block and sprue puller, the sliding block, ejector half core and sizing chamber are collectively formed for being molded to form the cavity of workpiece, The ejector half core is arranged on the support plate;
The sliding block is put together by three valve sliding blocks, per valve sliding block include take-up housing, be provided on the take-up housing to The molding edge that side is stretched out, the molding are constituted along by 120 ° of arc surfaces and molding inclined-plane, be provided on 120 ° of arc surfaces and The corresponding spiral salient of the irregular helicla flute in shaping workpiece side;It is provided with V-groove in the upper surface of the take-up housing, with toilet Inclined guide pillar is stated to stir and compress the sliding block;It molds and is provided with below edge with the molding along stretching direction on the take-up housing Consistent blind hole, to accommodate the spring for detaching the sub- sliding block and shaping workpiece;The common split of three valve sliding blocks forms cylinder Shape cavity has spiral salient corresponding with the irregular helicla flute in shaping workpiece side on the inner wall of cylindrical cavity;
It is provided with parallels between the support plate and lower die holder, to form the space of the ejecting mechanism, the dynamic chamber Plate, support plate, parallels are fixedly connected with lower die holder;There is the ejecting mechanism push rod, the push rod to pass through the ejector half core simultaneously The bottom for reaching cavity, to release the shaping workpiece of injection molding;The sprue puller is located at the underface of the sprue bush, with abjection Runner condensate.
2. mould for plastics according to claim 1, which is characterized in that the sub- sliding block further includes sliding block cover board, Vertical through-hole is provided on the take-up housing, the take-up housing is fixedly connected via through-hole with the sliding block cover board.
3. mould for plastics according to claim 1, which is characterized in that the ejecting mechanism includes push rod, release link And push away solid plate, the push rod and release link are mutually parallel, respective one end be separately fixed at it is described push away in solid plate, and with it is described Push away that solid plate is vertical, the push rod reaches the bottom of cavity.
4. mould for plastics according to claim 3, which is characterized in that be fixedly connected with below solid plate in described push away The knock-out pad for preventing the push rod and release link from falling off.
5. mould for plastics according to claim 1, which is characterized in that the back side is arranged in dynamic model in the support plate, The support plate is parallel with the lower die holder, and the ejector half core is arranged on;The dynamic cavity plate, support plate, parallels are under Die holder is used and is fastenedly connected.
CN201611008696.8A 2016-11-16 2016-11-16 A kind of mould for plastics of cylinder and its irregular three helicla flutes in side Active CN106273279B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611008696.8A CN106273279B (en) 2016-11-16 2016-11-16 A kind of mould for plastics of cylinder and its irregular three helicla flutes in side

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611008696.8A CN106273279B (en) 2016-11-16 2016-11-16 A kind of mould for plastics of cylinder and its irregular three helicla flutes in side

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CN106273279B true CN106273279B (en) 2018-11-13

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CN107379435A (en) * 2017-09-04 2017-11-24 湖北汽车工业学院 A kind of door frame for vehicle sealing strip injection mold and mold system

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CN205238463U (en) * 2015-12-30 2016-05-18 大连銮艺精密模塑制造有限公司 Fashioned plastic mold of many silder combination

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Address after: 050021 No. 38 Donggang Road, Yuhua District, Shijiazhuang City, Hebei Province

Patentee after: China one development 850 Electronics Co., Ltd.

Address before: 050021 No. 38 Donggang Road, Yuhua District, Shijiazhuang City, Hebei Province

Patentee before: Shijiazhuang No.850 Electronic Co., Ltd.

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