CN106671358A - Method and mould for three-color injection molding - Google Patents

Method and mould for three-color injection molding Download PDF

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Publication number
CN106671358A
CN106671358A CN201710024334.6A CN201710024334A CN106671358A CN 106671358 A CN106671358 A CN 106671358A CN 201710024334 A CN201710024334 A CN 201710024334A CN 106671358 A CN106671358 A CN 106671358A
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CN
China
Prior art keywords
dynamic
nozzle
cover
mould
penetrates
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
CN201710024334.6A
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Chinese (zh)
Inventor
章孝兵
何欢
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.)
Jingying Mould Product (shanghai) Co Ltd
Ace Mold Shanghai Co Ltd
Original Assignee
Jingying Mould Product (shanghai) 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 Jingying Mould Product (shanghai) Co Ltd filed Critical Jingying Mould Product (shanghai) Co Ltd
Priority to CN201710024334.6A priority Critical patent/CN106671358A/en
Publication of CN106671358A publication Critical patent/CN106671358A/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
    • 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
    • B29C45/26Moulds
    • B29C45/27Sprue channels Runner channels or runner nozzles
    • B29C45/2701Details not specific to hot or cold runner channels
    • B29C45/2708Gates
    • 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
    • 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
    • B29C45/42Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots
    • 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
    • B29C45/16Making multilayered or multicoloured articles
    • B29C2045/1698Making multilayered or multicoloured articles multicoloured articles moulded in one step

Abstract

The invention provides a method and mould for three-color injection molding. The method comprises the following steps that (1) a mould is closed, first shooting injection molding of three-color injection molding is finished at a first shooting station; (2) the mould is opened, a first shooting injection molding finished part rotates by 180 degrees and changes the position to reach a second-third shooting station; (3) the mould is closed, second shooting injection molding and third shooting injection molding are synchronously finished on the first shooting injection molding finished part, cooling is conducted to form a product, and meanwhile, the first shooting station completes next first shooting; and (4) the mould is opened, the product is unloaded, and before/after unloading, the first shooting injection molding finished part formed in the step (3) rotates by 180 degrees and changes the position to reach the second-third shooting station. By adoption of the method and mould for three-color injection molding, the problem that equipment and fund of small-and-medium-sized enterprises are not enough is well solved, the mould for three-color injection molding can be cooperated and transformed by combining an existing injection molding machine, business of the field of three-color injection molding forming is developed, and competitiveness of the enterprises on the international market is improved; and the qualification rate of three-color finished products of injection molding forming is high, and production cost of the injection molding finished products is greatly lowered.

Description

A kind of method of three colors injection and the mould of three colors injection
Technical field
The present invention relates to the mould that the method and three colors in injection moulding field, more particularly to a kind of injection of three color are molded.
Background technology
Three color injection mouldings are very high to mould structure and injection machine configuration requirement.Domestic and international existing three colors injection machine base Originally it is that, using mould 120 ° of rotations of degree every time, injection molding board, root are penetrated in the mature technology being molded in three times, customization three Three color injection molds are designed according to board dimensional parameters.
Due to the R and D in three color injection moulding fields, market is still in the elementary step at home.It is absorbed in this The large enterprise in field domestic market substantially leading at present, it is because being related to expensive injection molding machine and auxiliary equipment, higher Injection moulding control technology, it is desirable to harsh mold design and processing and manufacturing ability.Many medium-sized and small enterprises all combine this enterprise Itself present situation and development trend, abandon the research in this field, exited with large enterprise compete chance.
The content of the invention
The technical problems to be solved by the invention are a kind of mould of the method and three colors injection for providing three colors injection, should The relatively existing three ripe color injection molding technologies of method and mould structure, injection molding machine structure is relatively easy, is easy to be molded into Type is controlled, and relatively low to mold design and processing and manufacturing Capability Requirement, and the injection life of three colors is carried out beneficial to medium-sized and small enterprises Produce.
The present invention is achieved by the following technical solutions:
A kind of method of three colors injection, it is characterised in that:
The first step, moves, cover half matched moulds, penetrates station and completes the first of the injection of three colors first and penetrates injection and cooling shaping is the One penetrates injection completion portion;
Second step, first penetrates injection completion portion first molds with dynamic model, is then displaced between dynamic, cover half along matched moulds direction, And be shifted to up to second-three around 180 ° of the rotating shaft rotation that dynamic model center is configured at along matched moulds direction and penetrate station;
3rd step, first penetrates the second-three emitting chamber that injection completion portion enters in dynamic model along die sinking direction, and dynamic, cover half is closed Mould, penetrates to synchronously complete second in injection completion portion and penetrate injection and the 3rd and penetrates injection, and cooling shaping for product first, same with this When, first penetrates station completes next first to penetrate, and cooling shaping is first to penetrate and be molded completion portion;
4th step, the product of above-mentioned 3rd one-step forming and first is penetrated injection completion portion and is first molded with dynamic model, then along closing Mould direction synchronous shift is between dynamic, cover half, and product discharging, discharging is front/rear, and the first of above-mentioned 3rd one-step forming penetrates injection completes The rotation of 180 ° of portion is shifted to up to second-three penetrates station;
5th step, the subsequent cycle since above-mentioned 3rd step.
A kind of method for applying above-mentioned three color to be molded carries out the mould of three color injections, it is characterised in that:The mould includes The cover half that sequentially configures of left and right, core rod and dynamic model, cover half can transverse horizontal translation with matched moulds/die sinking, core rod is by along level Rotating shaft of the landscape configuration in dynamic model center is movably installed on dynamic model, wherein:
Cover half is towards the die joint section in vertical direction of dynamic model in " [" type, the opposite side of its two outer protruding end is pass Parting section is inclined towards dynamic model is inclined a pair in the axially symmetric setting of rotating shaft, inclined on the inside of parting section at two, put down respectively Row inclines parting section in two on rotating shaft a pair of Angle Pins of axially symmetric setting;
On the inside of Angle Pin, the die joint of cover half is respectively set as first in 180 ° of corresponding regions of axial-rotation around the shaft Penetrate station and second-the three and penetrate station, correspondence first is penetrated station and the first nozzle is configured in cover half, and correspondence second-the three penetrates work Position, configures the second nozzle and the 3rd nozzle in cover half, and three cast gates of nozzle are located on cover half die joint;
Plug is configured on core rod vertically, plug two ends expose to core rod both sides, on the inside of three nozzles, be close on plug Push pedal is movably installed at two ends, and during die sinking, push pedal can be moved axially under driving along plug, and the product being enclosed within outward on plug is pushed away Off-chip rod;
Rotating shaft can either be axially translated under driving, it is also possible to around axial horizontal rotation, during die sinking, rotating shaft under driving Core rod is ejected, between fixed half and moving half, and core rod is ordered about and is rotated 180 °, plug two ends correspondence first is penetrated station and the Two-the three penetrate station sequentially switches station;
Dynamic model configures a pair of cunnings towards the die joint section two ends in vertical direction of cover half, two Angle Pins of correspondence Block, opposite side is respectively equipped with and inclines spacing section of the inclination that parting section matches, two Angle Pins and two on two sliding blocks Individual sliding block forms two pairs on the axially symmetric oblique core drawing mechanism of rotating shaft:During matched moulds, Angle Pin forces two sliding blocks vertically Relative translation;During die sinking, Angle Pin gradually unclamps sliding block, until both depart from, position when two sliding blocks are remained disengaged from is motionless;
The cast gate of the first nozzle of correspondence, the second nozzle and the 3rd nozzle, cover half die joint, dynamic model die joint, two sliding block phases Offside and the cooperation position at plug two ends, are respectively enclosed to the first emitting chamber, the second emitting chamber and the 3rd emitting chamber.
During concrete operations, the cover half, core rod and dynamic model can as follows be acted under control unit control:
The first step, fixed half and moving half, sliding block matched moulds are penetrated in the first the first nozzle completion first penetrated at station and are molded and cold But it is shaped to first and penetrates injection completion portion;
Second step, dynamic model right lateral, fixed half and moving half, sliding block die sinking, rotating shaft stretches out, core rod is ejected dynamic model, and band to the left Moving-mould-core rotates 180 ° of arrival second-the three and penetrates station;
3rd step, rotating shaft bounces back to the right, band moving-mould-core return, fixed half and moving half, sliding block matched moulds again, and second-the three penetrates The second nozzle and the 3rd nozzle at station penetrate injection completion portion two ends and synchronously complete second and penetrate injection and the 3rd first respectively Injection is penetrated, and cooling shaping is product, at the same time, the first of subsequent cycle is completed in the first the first nozzle penetrated at station Penetrate, and cooling shaping penetrates injection completion portion for first;
4th step, dynamic model right lateral, fixed half and moving half, sliding block are molded again, and rotating shaft stretches out to the left, it is dynamic to eject core rod again The product of shaping is pushed away plug by mould, push pedal up/down extrapolation, realizes discharging, and initial position, push pedal discharging are replied in push pedal Front/rear, rotating shaft band moving-mould-core rotates 180 ° to switch station again;
5th step, the subsequent cycle since above-mentioned 3rd step.
Further, the transmission that one piece of hydraulic cylinder or compression cylinder by being placed on dynamic model drives is configured on the dynamic model Plate, horizontal cross opens up the push pedal draw-in groove matched with push pedal on driver plate, push pedal draw-in groove towards one end of cover half be openend, When rotating shaft is ejected/bounced back, the push pedal on plug can be driven to be located at the outside/inside of push pedal draw-in groove.Because dynamic model and core rod are equal It is movable piece, and core rod must also be able to relative dynamic model and translate and overturn, therefore opening up direction and open by push pedal draw-in groove Mouth can when needed make the driver plate on dynamic model drive push pedal discharging towards setting, while also keeping core rod and dynamic model to be in Demoulding state, it is to avoid interference discharging.
Further, the three colors injection mold top configuration day side manipulator, day side manipulator and driver plate energy Enough under control unit control, acted as follows:4th step, dynamic model right lateral, fixed half and moving half, sliding block are molded again, rotating shaft Stretch out to the left, core rod ejects dynamic model again, and after band moving-mould-core rotates 180 °, rotating shaft is bounced back to the right, and band moving-mould-core right lateral is arrived Push pedal is located at push pedal draw-in groove inner side, and rotating shaft pause right lateral, driver plate drives push pedal extrapolation that this circulation product being molded is pushed away into core Rod, day side manipulator is captured automatically, realizes discharging, and initial position is replied in push pedal.Product is up captured by day side manipulator, with She Tai mutually staggers position, is easy to arrangement, it is to avoid interference.
Further, it is step surface that the first of the first nozzle side penetrates injection completion portion upper end, and lower end side extends downwardly from axle To side wing, center perforate;The second of second nozzle side penetrates injection completion subordinate end and is close to side flap inner side, is nested in 180 ° Postrotational first penetrates in injection completion portion's perforate;3rd penetrates injection completion portion is coated at 180 ° postrotational the in ladder annular One penetrates in injection completion portion step surface outer rim;First emitting chamber includes that on cover half first penetrates front side outer mold surface, on dynamic model the One penetrates rear side outer mold surface, and on the sliding block of the first nozzle side first penetrates on upper end type face and plug first penetrates lower end type Face;Second emitting chamber includes that on cover half second penetrates front side outer mold surface, and on dynamic model second penetrates on rear side outer mold surface and plug Second penetrates upper end type face;3rd emitting chamber includes the 3rd emitting face on the sliding block of the 3rd nozzle side.First penetrates and has been molded Injection completion portion and the 3rd is penetrated by second and penetrate injection completion spaced-apart, therefore penetrate injection completion portion cooling shaping first into portion Synchronous when carrying out second-the three and penetrating afterwards, first penetrates injection completion portion also becomes second and penetrates injection completion portion and the 3rd and penetrate injection A part for completion portion die cavity.
Further, in the first nozzle side, two emitting chamber is ranked first on the axially symmetric interval of rotating shaft, in the second nozzle and 3rd nozzle side, the emitting chamber of emitting chamber-the three is ranked second on the axially symmetric interval two of rotating shaft;Often row's die cavity includes 3~10 Die cavity;To penetrate cavity positions corresponding with often ranked second emitting chamber-the three for 180 ° of postrotational positions around the shaft often to ranked first emitting chamber. Can be with single injection-molded multiple product, improve production efficiency.
Further, first nozzle is ebonite nozzle, and the second nozzle and/or the 3rd nozzle are flexible glue nozzle.It is advanced The injection of row ebonite part, then flexible glue injection is carried out, or continue ebonite injection.
Further, the cast gate consistency from top to bottom of the first nozzle, the second nozzle and the 3rd nozzle is a row.Gate placement is whole Together, it is easy to following process.
Further, the platform of penetrating of first nozzle, the second nozzle and the 3rd nozzle is respectively arranged at the left side of cover half, preceding Side and rear side.Arrangement is compact, is easy to operation.
It should be noted that carrying the position relationships such as upper and lower, left and right in specification and claims merely to retouching A kind of relative position relationship that is convenient and using is stated, is not the absolute limitation to the orientation.
The beneficial effects of the present invention are:
1st, the mould structure of three color injection can be based on the double coloured plastic injection machine transformation of the current relative low price of in the market Form, can solve the problem of medium-sized and small enterprises equipment and insufficient funds, cooperation can be carried out with reference to existing injection molding machine and changed Make, develop the business in three color injection moulding fields, improve competitiveness of the enterprise in international market;
2nd, the method and mould structure of three color injection are easy to operate, and injection molding machine structure is relatively easy, is adapted to be molded into The window of type is very wide, mold actions reliability;
3rd, three color product qualified rates of injection moulding are high, and injection-molded finished production cost is greatly lowered.
Brief description of the drawings
Fig. 1 is dynamic model positive structure diagram, and its exposed face is die joint
Fig. 2 is cover half positive structure diagram, and its exposed face is die joint
Fig. 3 be dynamic model, cover half matched moulds when along Fig. 1, Fig. 2 A-A directions sectional view
Fig. 4 is the first nozzle die cavity enlarged diagram in Fig. 3
Fig. 5 is the second nozzle die cavity and the 3rd emitting chamber enlarged diagram in Fig. 3
Fig. 6 divides each component locations schematic diagram during mould for Fig. 3
Fig. 7 is each component locations schematic diagram in Fig. 3 during rotating shaft ejection core rod
Fig. 8 is each component locations schematic diagram in Fig. 7 during push pedal discharging
Fig. 9 be second penetrate, product structure front view when the 3rd shoots away into
In Fig. 1~9:1 is the first nozzle, and 2 is the second nozzle, and 3 is the 3rd nozzle, and 4 is dynamic model, and 401 penetrate rear side for first Outer mold surface, 402 penetrate rear side outer mold surface for second, and 5 is cover half, and 501 penetrate front side outer mold surface for first, and 502 penetrate outside front side for second Type face, 504 to incline parting section, and 6 is core rod, and 7 is rotating shaft, and 9 is push pedal, and 10 is plug, and 101 penetrate lower end type face, 102 for first For second penetrates upper end type face, 11 is sliding block, and 111 penetrate upper end type face for first, and 112 to incline spacing section, and 113 is the 3rd emitting Face, 12 is driver plate, and 121 is push pedal draw-in groove, and 13 is Angle Pin, and 14 penetrate injection completion portion for first, and 15 is product, and 16 is second Injection completion portion is penetrated, 17 penetrate injection completion portion for the 3rd.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
, it is necessary to complete the color of product three injection as shown in Figure 9 in the present embodiment, the station of the product is penetrated and the in second Three penetrate injection completes, cooling shaping state;Injection completion portion 14 is penetrated, it is necessary to illustrate as first with the position that dotted outline is represented , due to Switch of working position, penetrate upper and lower end when station is penetrated relative to first by injection completion portion 14 for 180 ° postrotational first and hand over Change.Penetrated on station second-the three, first to penetrate the lower end of injection completion portion 14 be step surface, upper end side protrudes upward axial side Wing plate, center perforate;Second penetrates the lower end of injection completion portion 16 is close to side flap inner side, is nested in first and penetrates injection completion portion 14 In the perforate of upper end;3rd penetrates injection completion portion 17 is coated at first and penetrates and be molded the lower end step surface outer rim of completion portion 14 in ladder annular On.Three circles in figure are respectively the gate location of the first nozzle 1, the second nozzle 2 and the 3rd nozzle 3, it can be seen that three Cast gate is upper and lower to be aligned to a row.
As shown in Fig. 3, Fig. 6, mould includes the cover half 5 that left and right sequentially configures, core rod 6 and dynamic model 4, and cover half 5 can be horizontal With matched moulds/die sinking, rotating shaft 7 of the core rod 6 by being configured at the center of dynamic model 4 along horizontal cross is movably installed on dynamic model to horizontal translation On 4.
As shown in Fig. 2, Fig. 6, cover half 5 is towards the die joint section in vertical direction of dynamic model 4 in " [" type, it is outside two The opposite side of protruding end is a pair on the axially symmetric setting of rotating shaft 7 towards the inclined inclination parting section 504 of dynamic model 4, at two The inner side of inclination parting section 504, is respectively parallel to two and inclines partings section 504 on a pair of the Angle Pins of axially symmetric setting of rotating shaft 7 13;In the inner side of Angle Pin 13, the die joint of cover half 5 is respectively set as first in 7 axial-rotation, 180 ° of corresponding regions around the shaft Penetrate station and second-the three and penetrate station, correspondence first penetrates station first nozzle 1 of configuration in cover half 5, and correspondence second-the three is penetrated Station, configuration the second nozzle 2 and the 3rd nozzle 3 in cover half 5, three cast gates of nozzle are located on the die joint of cover half 5.The implementation In example, the first nozzle 1 is ebonite nozzle, and the second nozzle 2 and the 3rd nozzle 3 are flexible glue nozzle.
As shown in Figure 6, Figure 7, plug 10 is configured on core rod 6 vertically, the two ends of plug 10 expose to the both sides of core rod 6, at three Nozzle inner side, push pedal 9 is movably installed on plug 10 near two ends;As shown in Figure 7, Figure 8, one piece is configured on dynamic model 4 by external Hydraulic cylinder 8 drive driver plate 12, horizontal cross opens up the push pedal draw-in groove 121 matched with push pedal 9, push pedal on driver plate 12 Draw-in groove 121 is openend towards one end of cover half 5, when rotating shaft 7 is ejected/bounced back, push pedal 9 can be driven to be moved to push pedal draw-in groove 121 outside or inside.
During die sinking, rotating shaft 7 can be axially translated under driving, and core rod 6 is ejected, between cover half 5 and dynamic model 4, When push pedal 9 is moved to the outside of push pedal draw-in groove 121 with rotating shaft 7, rotating shaft 7 can also be driven under driving around axial horizontal rotation Core rod 6 is rotated 180 °, the two ends of plug 10 correspondence first is penetrated station and second-the three and penetrate station and sequentially switch station;Discharging When, suspending during the inside that push pedal 9 retracts to push pedal draw-in groove 121, push pedal 9 is moved axially under the driving of driver plate 12 along plug 10, The product being enclosed within outward on plug 10 is pushed away into plug 10.
As shown in Fig. 1, Fig. 3 and Fig. 6, dynamic model 4 is towards the die joint section two ends in vertical direction of cover half 5, correspondence Two Angle Pins 13 configure a pair of sliding blocks 11, and opposite side is respectively equipped with and inclines parting 504 phases of section on two sliding blocks 11 Spacing section 112 of the inclination matched somebody with somebody, two Angle Pins 13 and two sliding blocks 11 form two pairs on the axially symmetric oblique tube bundle extracting machine of rotating shaft 7 Structure:During matched moulds, Angle Pin 13 forces the two vertically relative translations of sliding block 11;During die sinking, Angle Pin 13 gradually unclamps sliding block 11, until both depart from, position when two sliding blocks 11 are remained disengaged from is motionless.
The cast gate of the first nozzle 1 of correspondence, the second nozzle 2 and the 3rd nozzle 3, the die joint of cover half 5, the die joint of dynamic model 4, two slide The opposite side of block 11 and the cooperation position at the two ends of plug 10, are respectively enclosed to the first emitting chamber, the second emitting chamber and the 3rd emitting chamber.Its In:
As shown in figure 4, the first emitting chamber includes that on cover half 5 first penetrates front side outer mold surface 501, on dynamic model 4 first penetrates Rear side outer mold surface 401, on the sliding block 11 of the side of the first nozzle 1 first penetrates on upper end type face 111 and plug 10 first penetrates Lower end type face 101;
As shown in figure 5, the second emitting chamber includes that on cover half 5 second penetrates front side outer mold surface 502, on dynamic model 4 second penetrates In rear side outer mold surface 402 and plug 10 second penetrates upper end type face 102;3rd emitting chamber includes the cunning positioned at the side of the 3rd nozzle 3 The 3rd emitting face 113 on block 11.
As shown in Figure 1 and Figure 2, in the side of the first nozzle 1, two emitting chamber is ranked first on the axially symmetric interval of rotating shaft 7, the Two nozzles 2 and the side of the 3rd nozzle 3, the emitting chamber of emitting chamber-the three is ranked second on the axially symmetric interval two of rotating shaft 7;Often arrange die cavity Including 4 die cavities;Often ranked first emitting chamber around the shaft 7 180 ° of postrotational positions with often ranked second the emitting of emitting chamber-the three Chamber position correspondence.
The parts such as three color injection molds top configuration day side manipulator, cover half 5, core rod 6, dynamic model 4, day side manipulator can Under control unit control, acted as follows:
The first step, cover half 5 and dynamic model 4, the matched moulds of sliding block 11, complete first and penetrate note in the first the first nozzle 1 penetrated at station Mould and cooling shaping is for first penetrates injection completion portion 14;This first penetrate injection complete after the completion of, can also be according to Product processing It is metal-cored that needs penetrate close-fitting insertion in the upper end perforate of injection completion portion 14 first;
Second step, the right lateral of dynamic model 4, cover half 5 and dynamic model 4, sliding block 11 are molded, and rotating shaft 7 stretches out to the left, it is dynamic to eject core rod 6 Mould 4, and station is penetrated in the 180 ° of arrival second-the three of rotation of band moving-mould-core 6;
3rd step, rotating shaft 7 bounces back to the right, the band return of moving-mould-core 6, cover half 5 and dynamic model 4, sliding block 11 matched moulds again, second- 3rd the second nozzle 2 penetrated at station and the 3rd nozzle 3 penetrate the two ends of injection completion portion 14 and synchronously complete second and penetrate first respectively Injection is penetrated in injection and the 3rd, and cooling shaping is product 15;Wherein first penetrates injection completion portion 14 can be moulded on metal-cored Or first penetrate in injection completion portion 14;
At the same time, complete subsequent cycle in first the first nozzle 1 for penetrating at station first is penetrated, and cooling shaping is the One penetrates injection completion portion 14;This first penetrate injection complete after the completion of, injection can also be penetrated first according to the need for Product processing Close-fitting insertion is metal-cored in the upper end perforate of completion portion 14;
4th step, the right lateral of dynamic model 4, cover half 5 and dynamic model 4, sliding block 11 are molded again, rotating shaft 7 stretches out to the left, by core rod 6 again After secondary ejection dynamic model 4, and 180 ° of band moving-mould-core 6 rotation, rotating shaft 7 bounces back to the right, and the band right lateral of moving-mould-core 6 to push pedal 9 is located at push pedal The inner side of draw-in groove 121, the pause right lateral of rotating shaft 7, driver plate 12 drives push pedal 9 to extrapolate this circulation product being molded and pushes up off-chip rod 10, day side manipulator is captured automatically, realizes discharging, and initial position is replied in push pedal 9;
5th step, the subsequent cycle since above-mentioned 3rd step.

Claims (10)

1. a kind of method that three color is molded, it is characterised in that:
The first step, move, cover half matched moulds, first penetrate station complete three colors injection first penetrate injection and cooling shaping for first penetrates Injection completion portion;
Second step, first penetrates injection completion portion first molds with dynamic model, is then displaced between dynamic, cover half along matched moulds direction, and around The 180 ° of rotations of rotating shaft for being configured at dynamic model center along matched moulds direction are shifted to up to second-three penetrates station;
3rd step, first penetrates injection completion portion along die sinking direction into the second-three emitting chamber in dynamic model, dynamic, cover half matched moulds, First penetrates to synchronously complete second in injection completion portion and penetrate injection and the 3rd and penetrates injection, and cooling shaping for product, at the same time, the One penetrates station completes next first to penetrate, and cooling shaping is first to penetrate and be molded completion portion;
4th step, the product of above-mentioned 3rd one-step forming and first is penetrated injection completion portion and is first molded with dynamic model, then along matched moulds side To synchronous shift between dynamic, cover half, product discharging, discharging is front/rear, and the first of above-mentioned 3rd one-step forming penetrates injection completion portion 180 ° of rotations are shifted to up to second-three and penetrate station;
5th step, the subsequent cycle since above-mentioned 3rd step.
2. a kind of method of the three colors injection described in application claim 1 carries out the mould of three color injections, it is characterised in that:It is described Mould includes the cover half (5) that sequentially configures of left and right, core rod (6) and dynamic model (4), cover half (5) can transverse horizontal translation with matched moulds/ Die sinking, rotating shaft (7) of the core rod (6) by being configured at dynamic model (4) center along horizontal cross is movably installed on dynamic model (4), its In:
Cover half (5) is towards the die joint section in vertical direction of dynamic model (4) in " [" type, the opposite side of its two outer protruding end is Parting section (504) is inclined towards dynamic model (4) is inclined a pair on rotating shaft (7) axially symmetric setting, parting is inclined at two Section (504) inner side, is respectively parallel to two and inclines parting section (504) on rotating shaft (7) a pair of Angle Pins of axially symmetric setting (13);
In Angle Pin (13) inner side, the die joint of cover half (5) is set in 180 ° of corresponding regions of (7) axial-rotation respectively around the shaft Penetrate station and second-the three and penetrate station for first, correspondence first penetrates station the first nozzle of configuration (1) in cover half (5), correspondence the Two-the three penetrate station, and the second nozzle of configuration (2) and the 3rd nozzle (3) in cover half (5), three cast gates of nozzle are located at cover half (5) on die joint;
Configuration plug (10) vertically on core rod (6), plug (10) two ends expose to core rod (6) both sides, on the inside of three nozzles, Push pedal (9) is movably installed near two ends on plug (10), during die sinking, push pedal (9) can axially be moved under driving along plug (10) It is dynamic, the outer product being enclosed within plug (10) is pushed away into plug (10);
Rotating shaft (7) can either be axially translated under driving, it is also possible to around axial horizontal rotation, during die sinking, rotating shaft under driving (7) core rod (6) is ejected, between cover half (5) and dynamic model (4), and orders about 180 ° of core rod (6) rotation, make plug (10) two End correspondence first is penetrated station and second-the three and penetrates station and sequentially switch station;
Dynamic model (4) is towards the die joint section two ends in vertical direction of cover half (5), two Angle Pins (13) configurations one of correspondence To sliding block (11), the inclination that opposite side is respectively equipped with inclination parting section (504) matches on two sliding blocks (11) is spacing Section (112), two Angle Pins (13) form two pairs on the axially symmetric oblique core drawing mechanism of rotating shaft (7) with two sliding blocks (11): During matched moulds, Angle Pin (13) forces two sliding blocks (11) vertically relative translation;During die sinking, Angle Pin (13) gradually unclamps cunning Block (11), until both depart from, position when two sliding blocks (11) are remained disengaged from is motionless;
The cast gate of the first nozzle of correspondence (1), the second nozzle (2) and the 3rd nozzle (3), cover half (5) die joint, dynamic model (4) parting The cooperation position at face, two sliding blocks (11) opposite side and plug (10) two ends, is respectively enclosed to the first emitting chamber, the second emitting chamber and Three emitting chambers.
3. the mould that three color according to claim 2 is molded, it is characterised in that:The cover half (5), core rod (6) and dynamic model (4) can as follows be acted under control unit control:
The first step, cover half (5) and dynamic model (4), sliding block (11) matched moulds, first is completed in the first the first nozzle (1) penetrated at station Penetrate injection and cooling shaping is for first penetrates injection completion portion (14);
Second step, dynamic model (4) right lateral, cover half (5) and dynamic model (4), sliding block (11) die sinking, rotating shaft (7) stretches out to the left, by core rod (6) ejection dynamic model (4), and station is penetrated in 180 ° of arrival second-the three of band moving-mould-core (6) rotation;
3rd step, rotating shaft (7) bounces back to the right, band moving-mould-core (6) return, cover half (5) and dynamic model (4), sliding block (11) matched moulds again, Second-the three the second nozzle (2) penetrated at station and the 3rd nozzle (3) penetrate injection completion portion (14) two ends synchronization first respectively Injection is penetrated in completion second and the 3rd penetrates injection, and cooling shaping is product (15), at the same time, first penetrated at station first Nozzle (1) completes first penetrating for subsequent cycle, and cooling shaping is first to penetrate and be molded completion portion (14);
4th step, dynamic model (4) right lateral, cover half (5) and dynamic model (4), sliding block (11) are molded again, and rotating shaft (7) stretches out to the left, by mould Core (6) ejects dynamic model (4) again, and the product (15) being molded is pushed away plug (10), realizes unloading by the extrapolation of push pedal (9) up/down Initial position is replied in material, push pedal (9), and push pedal (9) discharging is front/rear, and rotating shaft (7) band moving-mould-core (6) rotates 180 ° to switch again Station;
5th step, the subsequent cycle since above-mentioned 3rd step.
4. the mould that three color according to claim 3 is molded, it is characterised in that:One piece is configured on the dynamic model (4) by outer The driver plate (12) that the hydraulic cylinder (8) or compression cylinder that are placed on dynamic model (4) drive, on driver plate (12) horizontal cross open up with The push pedal draw-in groove (121) that push pedal (9) matches, push pedal draw-in groove (121) is openend towards one end of cover half (5), and rotating shaft (7) is pushed up When going out/bouncing back, the push pedal (9) on plug (10) can be driven positioned at the outside/inside of push pedal draw-in groove (121).
5. the mould that three color according to claim 4 is molded, it is characterised in that:The three colors injection mold top configuration day Side manipulator, day side manipulator and driver plate (12) can as follows be acted under control unit control:
4th step, dynamic model (4) right lateral, cover half (5) and dynamic model (4), sliding block (11) are molded again, and rotating shaft (7) stretches out to the left, by mould After core (6) ejects dynamic model (4), and 180 ° of band moving-mould-core (6) rotation again, rotating shaft (7) bounces back to the right, band moving-mould-core (6) right lateral To push pedal (9) positioned at push pedal draw-in groove (121) inner side, rotating shaft (7) pause right lateral, driver plate (12) drives push pedal (9) extrapolation will be into This circulation product of type pushes away plug (10), and day side manipulator is captured automatically, realizes discharging, and initial position is replied in push pedal (9).
6. the mould that three color according to claim 2 is molded, it is characterised in that:The first of first nozzle (1) side penetrates injection Completion portion (14) upper end is step surface, and lower end side extends downwardly from axial side wing, center perforate;Second nozzle (2) side Second penetrates injection completion portion (16) lower end is close to side flap inner side, is nested in 180 ° postrotational first and penetrates injection completion portion (14) In perforate;3rd penetrate injection completion portion (17) in ladder annular be coated at 180 ° postrotational first penetrate injection completion portion (14) platform In terrace outer rim;
First emitting chamber includes that on cover half (5) first penetrates front side outer mold surface (501), and on dynamic model (4) first penetrates rear side external form Face (401), on the sliding block (11) of the first nozzle (1) side first penetrate on upper end type face (111) and plug (10) first Penetrate lower end type face (101);
Second emitting chamber includes that on cover half (5) second penetrates front side outer mold surface (502), and on dynamic model (4) second penetrates rear side external form On face (402) and plug (10) second penetrates upper end type face (102);
3rd emitting chamber includes the 3rd emitting face (113) on the sliding block (11) of the 3rd nozzle (3) side.
7. the mould that three color according to claim 2 is molded, it is characterised in that:In the first nozzle (1) side, on rotating shaft (7) axially symmetric interval two ranked first emitting chamber,
In the second nozzle (2) and the 3rd nozzle (3) side, ranked second emitting chamber-the three on the axially symmetric interval two of rotating shaft (7) and penetrate Die cavity;
Often row's die cavity includes 3~10 die cavities;
Cavity positions pair are penetrated in (7) 180 ° of postrotational positions with often ranked second emitting chamber-the three around the shaft often to ranked first emitting chamber Should.
8. the mould that three color according to claim 2 is molded, it is characterised in that:First nozzle (1) is ebonite nozzle, Second nozzle (2) and/or the 3rd nozzle (3) are flexible glue nozzle.
9. the mould that three color according to claim 2 is molded, it is characterised in that:First nozzle (1), the second nozzle (2) and the 3rd nozzle (3) cast gate consistency from top to bottom for one row.
10. the mould that three color according to claim 2 is molded, it is characterised in that:First nozzle (1), the second nozzle And the 3rd nozzle (3) penetrates left side, front side and rear side that platform is respectively arranged at cover half (5) (2).
CN201710024334.6A 2017-01-13 2017-01-13 Method and mould for three-color injection molding Pending CN106671358A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108422621A (en) * 2018-03-15 2018-08-21 浙江万豪模塑股份有限公司 A kind of three color molds and three color triangle window decorative panels with stainless steel inserts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108422621A (en) * 2018-03-15 2018-08-21 浙江万豪模塑股份有限公司 A kind of three color molds and three color triangle window decorative panels with stainless steel inserts

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