CN110142929A

CN110142929A - A kind of double-color mold with free-wheeling system

Info

Publication number: CN110142929A
Application number: CN201910415797.4A
Authority: CN
Inventors: 陈旭龙; 罗繁
Original assignee: Shenzhen Peng Xu Mould Co Ltd
Current assignee: Shenzhen Peng Xu Mould Co Ltd
Priority date: 2019-05-18
Filing date: 2019-05-18
Publication date: 2019-08-20
Anticipated expiration: 2039-05-18
Also published as: CN110142929B

Abstract

The invention discloses a kind of double-color molds with free-wheeling system, including pedestal, rear mold and preceding mould, ejector pin mechanism is provided on pedestal, punch-pin is provided in rear mold, cavity plate is provided on preceding mould, the first type chamber and second type chamber are formed between punch-pin and cavity plate, the free-wheeling system of driving rear mold rotation is provided on pedestal, ejector pin mechanism is connected in rear mold, the actuator that setting drives rear mold to go up and down on pedestal, by the way that free-wheeling system is arranged on pedestal, pedestal is fixed on injection molding machine during installation, after completing first time injection molding, rear mold is driven entirely to jack up after die sinking, free-wheeling system drives entire rear mold to rotate, second of injection molding can be carried out after molding, period rotates again after first entirely jacking up rear mold, so that mold body carries rotation function, it can be suitable for not having the injection molding machine of rotation function or temporarily changing The injection molding machine of dress adapts to the flexible of production and arranges, equipment investment is effectively reduced and makes full use of existing equipment, practicability is more preferably.

Description

A kind of double-color mold with free-wheeling system

Technical field

The present invention relates to mould applications, more specifically, it relates to a kind of double-color mold with free-wheeling system.

Background technique

Double-color mold i.e. two kind difference plastic material is molded on same injection molding machine, is formed in two times, but product is only The primary mold of depanning mainly includes pedestal, rear mold and preceding mould, cavity plate and punch-pin is respectively set on preceding mould and rear mold, Two type chambers are formed between cavity plate and punch-pin, and the injection hole being connected to two type chambers, different plastic materials are set on mold It is injected separately into type chamber, usually first carries out completing to form for the first time in first type chamber in its use process, then pass through Rotating mechanism on injection molding machine drives punch-pin to rotate into another type chamber, then completes second of injection molding and realize formed product, existing There is double-color mold to realize that injection molding twice all relies on the rotating mechanism of injection molding machine to realize rotation, and can be encountered in reality Do not have the case where rotating mechanism on to part injection machine, will lead at this time double-color mold can not normal use, there are practicabilities The problem of difference.

Summary of the invention

In view of the deficiencies of the prior art, the present invention intends to provide a kind of double color mould with free-wheeling system Tool, has the advantages that practicability is good.

To achieve the above object, the present invention provides the following technical scheme that

A kind of double-color mold with free-wheeling system, including pedestal, rear mold and preceding mould are provided with thimble machine on the pedestal Structure is provided with punch-pin in the rear mold, cavity plate is provided on the preceding mould, formed between the punch-pin and cavity plate the first type chamber and Second type chamber is provided with the free-wheeling system of driving rear mold rotation on the pedestal, and the ejector pin mechanism is connected in rear mold, described The actuator that setting drives rear mold to go up and down on pedestal.

By the way that free-wheeling system is arranged on pedestal, pedestal is fixed on injection molding machine during installation, completes the when use It after single injection-molded, drives rear mold entirely to jack up by actuator after die sinking, is then driven by the free-wheeling system on pedestal Entire rear mold is rotated, second of injection molding can be carried out after molding, is rotated again after during which first entirely jacking up rear mold Avoid the interference of the other components of edge, it is ensured that entire rear mold can normal table rotation, and make mold body included in this way Rotation function, so as to adapt to production suitable for the injection molding machine for not having rotation function or the injection molding machine temporarily reequiped Flexibility arranges, and equipment investment is effectively reduced and makes full use of existing equipment, practicability is more preferably.

The present invention is further arranged: the ejector pin mechanism is connected in rear mold, and the actuator includes across pedestal and consolidating The top pillar being scheduled in rear mold, the one end of the top pillar far from rear mold is for being injection molding Driven by Hydraulic Cylinder on machine.

By the setting of top pillar, can be realized when needing to drive rear mold integral elevating by the hydraulic cylinder on injection molding machine, Total is simple, and the hydraulic cylinder rationally carried using injection molding machine itself, increases driving source without additional.

The present invention is further arranged: the free-wheeling system includes the tooth for being socketed on top pillar and being rotatably connected on pedestal Wheel, horizontal in the pedestal to slidably connect rack gear engage with gear, be fixed with that drive rack moves on the pedestal the One oil cylinder, the top pillar are provided in the axial direction with guide groove, and the gear inner wall is convexly equipped with the convex block with guide groove cooperation.

When needing that rear mold is driven to rotate, by the first oil cylinder drive rack gear come band moving gear rotate, due to convex block with lead To make top pillar and rear mold be forced to rotate simultaneously, realization drives entire rear mold rotation to carry out second of note for slot cooperation It is moulded into type, overall structure is simple and will not interfere with the operation that top pillar drives rear mold to jack up, it is ensured that the lifting and rotation of rear mold are all It can normally carry out.

The present invention is further arranged: the ejector pin mechanism include top plate, thimble and drive top plate go up and down the second oil cylinder, Guide post is provided on the top plate, described guide post one end is connected in rear mold and vertically links with rear mold.

By guide post setting so that rear mold ejector pin mechanism is with its synchronizing moving during lifting, and ejector pin mechanism As rear mold rotates synchronously, it is ensured that thimble and rear mold remain mated condition, and also contributing to subsequent ejector pin mechanism in this way will be at Product after type can smoothly eject realization demoulding, it is subsequent when needing to demould by the second oil cylinder drive top plate move up and by Thimble can eject product.

The present invention is further arranged: is provided on the piston rod of second oil cylinder for the fixation fixed with injection molding machine Block, is fixed with the top item below top plate and for pushing top plate to rise on second oil cylinder, the top item and top plate it Between be provided with push up item retract when linkage top plate synchronize the resetting connector moved down.

Realize that the second oil cylinder can be driven by stretching by the piston rod of the second oil cylinder when demoulding needing to eject product Cylinder body and top item are mobile towards preceding mould direction, and top item pushes top plate to synchronize and moves up when moving up, so that subsequent can pass through top plate On thimble realize demoulding, complete demoulding after top item rollback sets back, by resetting connector make push up item in rollback When can synchronous drive top plate set back, convenient for stripping operation next time.

The present invention is further arranged: the resetting connector includes the plug being fixed on the item of top and is fixed on top plate Plug socket, the head of the plug is tapered and side wall is provided with the coronary sulcus of annular, opens up on the plug socket for plug The slot of grafting, the slot inner wall offer perforative mounting groove, are provided in the mounting groove for being clamped with coronary sulcus Sphere, bottom is provided with the elastic slide block for driving sphere retraction mounting groove in the slot, is socketed outside the plug socket Have for driving sphere protrusion slot inner wall to be caught in the slide of coronary sulcus, the slide inner wall open up it is fluted, the slide with Elastic component is provided between plug socket bottom, when the groove and mounting groove are in corresponding position, the elastic component is in compression State is convexly equipped with the extension for being pushed by pedestal on the slide.

Plug and plug socket are mating during top item mould direction facing forward is mobile in this way, and the elasticity in plug socket is sliding Block is interior under the action of plug to be moved so that it no longer stops sphere, and plug drives top plate and plug socket mould direction facing forward mobile, Slide is detached from the blocking of pedestal, and slide moves under the action of the elastic member drives sphere to be caught in the coronary sulcus of plug, realizes and inserts Head is connected and fixed with plug socket, it is ensured that roof backing can be driven to set back when pushing up item and retracting, the process that item retracts on top Middle extension by pedestal stop compression elastic piece make slide slide into installation groove location it is corresponding, top item continue rollback so that Coronary sulcus and sphere, which are detached from, to be clamped, and elastic slide block sets back, and is pushed up item at this time and is no longer linked with top plate, it is ensured that subsequent top pillar drives Operation after rear mold jack-up avoids there is a situation where that interference is stuck.

The present invention is further arranged: the rear mold includes lower plate and upper plate, and the punch-pin is arranged on upper plate, the upper plate On be provided with the push plate of ejecting product, the thimble is against in push plate far from one end of top plate, and the punch-pin includes internal model and outer Mould, the internal model are fixed in lower plate, and the external mold is fixed on upper plate, and the external mold includes fixed part and inside contracts portion, institute State internal model it is tapered and inside contract portion along die sinking direction be slidably connected in internal model, the portion's outer wall that inside contracts is convexly equipped with buckle, described The mandril that will be pushed up on upper plate is provided on top plate.

Due to some products, its inner wall can have recess portion, and then need to have the button being adapted to recess portion on punch-pin at the time of molding Portion, buckle is in clamped condition with recess portion and leads to not directly eject after completing molding, thus by above-mentioned such setting after, pushing up Top on upper plate is driven during moving up by mandril and makes it away from lower plate by plate, and the portion that inside contracts of external mold is slided in internal model during being somebody's turn to do Dynamic realization inside contracts, so that buckle is deviate from from the recess portion of product, subsequent can directly realize product ejection by thimble again takes off Mould achievees the purpose that delayed goring product, it is ensured that product can be well ejected.

The present invention is further arranged: being provided with hook in the lower plate, is offered on the hook for mandril along die sinking side To the sliding slot of sliding, the sliding slot runs through hook, and card slot is equipped at the sliding slot, is provided with the bullet for being caught in card slot on the upper plate Property fixture block, the top of the mandril are against elastic clamping block bottom, the holding tank inside contracted for elastic clamping block are offered on the upper plate, It is provided with the first inclined-plane for driving elastic clamping block to inside contract at the top of the card slot inner wall, is provided on the elastic clamping block with first tiltedly Face abuts the second inclined-plane of adaptation.

Can play the role of blocking to mandril by the setting of elastic clamping block, enable top on mandril when drive upper plate It is mobile, and inside contract elastic clamping block constantly until no longer stopping top when upper plate constantly moves Bar, mandril, which can pass through sliding slot, no longer drives top plate mobile, and the thimble on top plate, which is persistently moved up, reaches de- for shaped article ejection The purpose of mould smoothly ejects to reach and product is delayed.

The present invention is further arranged: be provided with supporting block between the pedestal and lower plate, the supporting block be symmetrical arranged and Side is fixed in lower plate, and the other side is placed on pedestal.

Can be played a supporting role to lower plate by the setting of supporting block and keep it with top plate there are distances so that having Enough spaces are mobile for top plate.

The present invention is further arranged: the gear is extended axially by bulge loop, and bearing, the bottom are socketed on the bulge loop It is provided on seat and bearing adapter and the mounting hole that is passed through for top pillar.

Further make it possible to achieve the purpose that reducing friction resistance by the setting of bearing, so that driving entire rear mold It rotates more smooth.

In conclusion the invention has the following advantages:

1, mold body has free-wheeling system, even if to still can well fit in the case where injection molding machine does not have rotating mechanism With driving the rotation of entire rear mold to meet the injection molding of double-colored product, have good applicability and practicability；

2, it before being rotated to rear mold, is rotated again after jacking up entire rear mold by top pillar, it is ensured that rear mold rotates suitable Benefit carries out, and reducing other components influences its normal the case where rotating；

3, the ejection of product uses delayed goring (Double-ejection), it is ensured that buckle completes product top after the abjection of the recess portion of product again It demoulds out, avoids the case where ejecting bad product by force appearance；

4, it is able to drive top plate return when mandril retracts by the setting of resetting connector, links and releases after top plate return, from Without will affect the operation rotated after subsequent entire rear mold is jacked up.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the present embodiment；

Fig. 2 is the chart at the bottom of (for showing free-wheeling system) of the present embodiment；

Fig. 3 is the top structure figure after product and fixed part pop in rear mold in the present embodiment；

Fig. 4 is the enlarged drawing in Fig. 3 at A;

Fig. 5 is the cross-sectional view in Fig. 3 at C-C；

Fig. 6 is cross-sectional view of the present embodiment at resetting connector；

Fig. 7 is the enlarged drawing in Fig. 6 at B.

Appended drawing reference: 1, pedestal；2, preceding mould；3, footstock；4, punch-pin；5, top plate；6, guide post；7, supporting block；8, the second oil Cylinder；9, fixed block；10, item is pushed up；11, top pillar；12, gear；13, rack gear；14, the first oil cylinder；15, guide groove；16, convex block；17, on Plate；18, lower plate；19, buckle；20, external mold；201, fixed part；202, portion is inside contracted；21, internal model；22, sliding groove；23, it is open； 24, hook；25, sliding slot；26, card slot；27, block；28, spring；29, the first inclined-plane；30, the second inclined-plane；31, plug；32, it inserts Joint chair；33, slot；34, coronary sulcus；35, elastic slide block；36, mounting groove；37, sphere；38, slide；39, groove；40, elastic Part；41, extension；42, bulge loop；43, bearing；44, rear mold；45, mandril.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.

A kind of double-color mold with free-wheeling system, as depicted in figs. 1 and 2, including pedestal 1, rear mold 44, preceding mould 2 and Footstock 3, wherein pedestal 1 is used to be fixed on the mounting plate of injection molding machine, and pedestal 1 is fixed to each other by three pieces of plate bodys and is constituted, in rear mold It is provided with ejector pin mechanism between 44 and pedestal 1, punch-pin 4(such as Fig. 3 is provided in rear mold 44), and be provided on preceding mould 2 recessed Mould forms the first type chamber and second type chamber between cavity plate and punch-pin 4, two kinds of unlike material positions are successively in the first type chamber on product It is formed between second type chamber；Wherein ejector pin mechanism includes the top plate 5 on the pedestal 1, be provided on top plate 5 thimble and Guide post 6, wherein thimble one end is extended to for ejecting product at the first type chamber and second type chamber, after 6 top of guide post is connected to On mould 44 and bottom end passes through top plate 5 and is against on pedestal 1, and supporting block 7, the support are provided between rear mold 44 and pedestal 1 7 top of block and rear mold 44 are fixed；In addition the second oil cylinder 8 for driving top plate 5 to move up, the second oil cylinder 8 are provided in the side of pedestal 1 Piston rod end be provided with the fixed block 9 fixed with the mounting plate of injection molding machine, be fixed on the second oil cylinder 8 positioned at top plate 5 The top item 10 that lower section is used to that top plate 5 to be pushed to rise, to can drive top item 10 mobile when the piston rod of the second oil cylinder 8 stretches out Top plate 5 is pushed to eject product towards mobile realize in 44 direction of rear mold.

The actuator for driving rear mold 44 to go up and down is provided on pedestal 1, which includes across pedestal 1 and after being fixed on Top pillar 11 on mould 44, the top pillar 11 are used to fix and be driven with the hydraulic cylinder on injection molding machine far from one end of rear mold 44； And the free-wheeling system that driving rear mold 44 rotates is provided on pedestal 1, which includes being rotatably installed in pedestal 1 Gear 12, the gear 12 are socketed on top pillar 11, and the rack gear 13 engaged with gear 12 is slidably connected in pedestal 1, the bottom of at It is fixed with the first oil cylinder 14 of the sliding of drive rack 13 on 1 side wall of seat, while being provided in the axial direction with guide groove 15 on top pillar 11, The convex block 16 cooperated with guide groove 15 is convexly equipped on the inner wall of gear 12, convex block 16 is in guide groove 15 during top pillar 11 is mobile Sliding；After completing one of position molding in the first type chamber to product, the hydraulic cylinder after die sinking on injection molding machine drives top Column 11 is mobile, and top pillar 11 drives rear mold 44 to be raised in pedestal 1, and top plate 5 and thimble are with it during rear mold 44 is mobile It moves together, until first oil cylinder 14 drives rack gear 13 mobile after top plate 5 is higher than the second oil cylinder 8, the mobile band moving gear of rack gear 13 12 rotations, so that top pillar 11 and rear mold 44 be driven to rotate 180 degree, top pillar 11, which moves down to set back, is placed in pedestal 1 to rear mold 44 On, product after molding for the first time is completed at this time and is located at second type chamber, and molding carries out second of injection molding；Make in this way Mold body carries rotation function, so as to be suitable for a variety of different injection molding machines, practicability more preferably, while by rear mold 44 Rotating again after entire jack-up avoids the second oil cylinder 8 and other components from impacting the rotation of rear mold 44.In addition in gear 12 It is extended axially by bulge loop 42, bearing 43 is socketed on bulge loop 42, is provided on pedestal 1 and is adapted to bearing 43 and is worn for top pillar 11 The mounting hole crossed, in this way can reducing friction resistance, enable rear mold 44 is more stable smooth rotate.

As Figure 3-Figure 4, wherein rear mold 44 includes lower plate 18 and upper plate 17, and top pillar 11 and supporting block 7 are each attached to In lower plate 18, since some product inner walls can have recess portion, and then needs in forming process to have on punch-pin 4 and be adapted to recess portion Buckle 19 causes thimble upper push up not eject product directly, and ejection can push up bad product by force, therefore needing first will be on punch-pin 4 Buckle 19 from recess portion deviate from after；Its convex mould 4 is fixed on upper plate 17, and pushing away for ejecting product is provided on upper plate 17 Plate, thimble are against in push plate far from one end of top plate 5, and convex mould 4 includes external mold 20 and internal model 21, and internal model 21 is fixed on lower plate On 18 and it is pierced by upper plate 17,20 sets of external mold in internal model 21 and including fixed part 201 and inside contract portion 202, and fixed part 201 is fixed On upper plate 17, offered on fixed part 201 for inside contracting the opening 23 that portion 202 inside contracts, internal model 21 is tapered and inner wall side wall on The sliding groove 22 for inside contracting the sliding of portion 202 is offered, portion 202 is inside contracted and is slidably connected in internal model 21 along die sinking direction, buckle 19 It is arranged in the portion that inside contracts 202, while is provided with the mandril 45 that will be pushed up on upper plate 17 on top plate 5；Top plate 5 is borrowed during moving up It helps mandril 45 to drive top on upper plate 17 and makes it away from lower plate 18, external mold 20 inside contracts portion 202 in the sliding of internal model 21 during being somebody's turn to do Upper sliding realization inside contracts so that buckle 19 is deviate from from the recess portion of product, convenient for it is subsequent again can be directly by product by thimble Demoulding is realized in ejection.

As shown in Figure 3 and Figure 5, the hook 24 extended towards 17 direction of upper plate, 24 bottom of hook are provided in lower plate 18 It is fixed with lower plate 18, the sliding slot 25 for mandril 45 along the sliding of die sinking direction is offered on hook 24, which runs through hook 24, while it being provided with card slot 26 at the corresponding upper plate 17 of sliding slot 25, the elastic clamping block for being caught in card slot 26 is provided on upper plate 17, it should Elastic clamping block includes block 27 and spring 28, and the holding tank inside contracted for block 27,28 one end of spring are offered on upper plate 17 It is fixed on block 27, the other end is fixed on holding tank inner wall, is provided at the top of the inner wall of card slot 26 and block 27 is driven to inside contract The first inclined-plane 29, be provided on block 27 and abut the second inclined-plane 30 being adapted to the first inclined-plane 29；In this way in upper plate 17 under When plate 18 abuts, play the role of blocking to mandril 45 by elastic clamping block, enable top on mandril 45 when drive upper plate 17 It is mobile, and when upper plate 17 is constantly mobile in the first inclined-plane 29 under the action of inside contracts elastic clamping block constantly until no longer stopping Mandril 45, mandril 45, which can pass through sliding slot 25, no longer drives top plate 5 mobile, and the thimble on top plate 5 is persistently moved up shaped article Ejection achievees the purpose that demoulding；To realize at the beginning by top on 17 part of upper plate so that being used for far from the movement of lower plate 18 so that outer Inside contracting portion 202 and can smoothly inside contract on mould 20, it is ensured that buckle 19 is deviate from from the recess portion of product, subsequent top plate 5 persistently it is mobile not It pushes upper plate 17 to ensure that thimble can eject the product on upper plate 17 again, reaches product delay smoothly ejection.

As shown in Figure 6 and Figure 7, under the top plate 5 that links when pushing up and being provided between item 10 and top plate 5 in the top rollback of item 10 is synchronous The resetting connector of shifting, the resetting connector make top item 10 no longer link with top plate 5 after top item 10 retracts to original position, thus Ensure that subsequent top pillar 11 drives rear mold 44 not will receive the second oil cylinder 8 when rising and pushes up the influence of item 10.Wherein reset connection Device includes the plug 31 being fixed on the item 10 of top and the plug socket 32 being fixed on top plate 5, is provided in plug socket 32 for inserting The slot 33 of first 31 grafting, the head of plug 31 is tapered and side wall is provided with annular coronary sulcus 34, opens on 33 inner wall of slot Equipped with perforative mounting groove 36, the sphere 37 for being clamped with coronary sulcus 34 is provided in mounting groove 36, the bottom of slot 33 is set It is equipped with the elastic slide block 35 for driving 37 retraction mounting groove 36 of sphere, while being slidably connected on plug socket 32 for driving sphere 37 protrusion 33 inner walls of slot are caught in the slide 38 of coronary sulcus 34, and the inner wall of slide 38 offers the groove being adapted to 37 side of sphere 39, and it is provided directly with elastic component 40 in slide 38 and 32 bottom of plug socket, groove 39 and mounting groove 36 are in corresponding position When, elastic component 40 is in compressive state, and is extended with the extension 41 for being pushed by pedestal 1 in the two sides of slide 38.

Plug 31 and plug socket 32 are mating during pushing up the movement of 2 direction of mould facing forward of item 10 in this way, plug socket 32 Interior elastic slide block 35 is interior under the action of plug 31 to be moved so that it no longer stops sphere 37, and plug 31 drives top plate 5 and inserts 2 direction of mould facing forward of joint chair 32 is mobile, and slide 38 is detached from the blocking of pedestal 1, and movement under the action of elastic component 40 of slide 38 drives Sphere 37 is caught in the coronary sulcus 34 of plug 31, and realization plug 31 is connected and fixed with plug socket 32, it is ensured that on top, item 10 retracts When the rollback of top plate 5 can be driven to set back, extension 41 by pedestal 1 stops compression elastic piece during pushing up item 10 and retracting 40 that slide 38 is slid into is corresponding with 36 position of mounting groove, and top item 10 continues to retract so that coronary sulcus 34 and sphere 37 are detached from and block It connects, elastic slide block 35, which sets back, drives plug 31 to move inside and outside slot 33, while sphere 37 being driven to inside contract and be partially located at recessed In slot 39, item 10 is pushed up at this time and is no longer linked with top plate 5, it is ensured that subsequent top pillar 11 drives the operation after the jack-up of rear mold 44, avoids depositing Interfering stuck situation.

The implementation principle of the present embodiment are as follows: mould 2 and rear mold 44 mold before first, and a kind of plastics material is injected into the first type chamber The raw material of matter realizes and forms for the first time that top pillar 11 drives the movement of mandril 45 to jack up rear mold 44 after being then opened, until rear mold 44 Top plate 5 is risen to higher than driving is stopped after the second oil cylinder 8, drives rack gear 13 mobile by the first oil cylinder 14 so that entire rear mold 44 180 degree is rotated, then top pillar 11 drives the decline of rear mold 44 to set back and be placed on pedestal 1, and molding injects the in second type chamber The raw material of two kinds of plastic materials, after realizing the second molding, the starting of the second oil cylinder 8 drives top item 10 to move up after die sinking, top item 10 Clamping linkage is realized in 32 grafting of plug socket on plug 31 and top plate 5, and top pillar 11 is by elastic clamping block during top plate 5 moves up Blocking drives upper plate 17 mobile, and upper plate 17 inside contracts portion 202 in internal model 21 on external mold 20 when mobile far from lower plate 18 during being somebody's turn to do On mobile realize of sliding groove 22 inside contract so that the buckle 19 inside contracted in portion 202 is deviate from from the recess portion of product inner wall.Together When after elastic clamping block constantly inside contracts during upper plate 17 is mobile until no longer stopping mandril 45, upper plate 17 is no longer pushed up at this time Bar 45 pushes, and product can be ejected and realize demoulding by the thimble on top plate 5 persistently moved；Subsequent second oil cylinder 8 moves down recovery In situ, top item 10 drives 5 synchronizing moving return of top plate, until the extension 41 of slide 38 elasticity of compression after by the blocking of pedestal 1 Part 40 is detached from the clamping of plug 31 and plug socket 32, and the linkage for pushing up item 10 and top plate 5 at this time releases, and subsequent top pillar 11 drives Rear mold 44 so will not constantly be recycled the secondary injection for realizing product by the second oil cylinder 8 and the interference effect of top item 10 when mobile It is moulded into type.

The embodiment of present embodiment is presently preferred embodiments of the present invention, and protection of the invention is not limited with this Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it It is interior.

Claims

1. a kind of double-color mold with free-wheeling system, including pedestal (1), rear mold (44) and preceding mould (2), the pedestal (1) On be provided with ejector pin mechanism, be provided with punch-pin (4) on the rear mold (44), be provided with cavity plate, the punch-pin on the preceding mould (2) (4) the first type chamber and second type chamber are formed between cavity plate, it is characterized in that: being provided with driving rear mold (44) on the pedestal (1) The free-wheeling system of rotation, the ejector pin mechanism are connected on rear mold (44), and setting drives rear mold (44) to go up and down on the pedestal (1) Actuator.

2. the double-color mold according to claim 1 with free-wheeling system, it is characterized in that: after the ejector pin mechanism is connected to On mould (44), the actuator includes across pedestal (1) and the top pillar (11) that is fixed on rear mold (44), and the top pillar (11) is remote One end from rear mold (44) is for being injection molding Driven by Hydraulic Cylinder on machine.

3. the double-color mold according to claim 2 with free-wheeling system, it is characterized in that: the free-wheeling system includes socket On top pillar (11) and the gear (12) that is rotatably connected on pedestal (1), the interior level of the pedestal (1) slidably connects and gear (12) rack gear (13) engaged is fixed with drive rack (13) mobile first oil cylinder (14), the top pillar on the pedestal (1) (11) it is provided in the axial direction with guide groove (15), gear (12) inner wall is convexly equipped with the convex block (16) with guide groove (15) cooperation.

4. the double-color mold according to claim 1 with free-wheeling system, it is characterized in that: the ejector pin mechanism includes top plate (5), thimble and the second oil cylinder (8) for driving top plate (5) to go up and down, are provided with guide post (6), the guide post on the top plate (5) (6) one end is connected on rear mold (44) and vertically links with rear mold (44).

5. the double-color mold according to claim 4 with free-wheeling system, it is characterized in that: the work of second oil cylinder (8) It is provided with the fixed block (9) for fixing with injection molding machine on stopper rod, is fixed under top plate (5) on second oil cylinder (8) Side and the top item (10) for being used to that top plate (5) to be pushed to rise, are provided between the top item (10) and top plate (5) and return on top item (10) Linkage top plate (5) synchronizes the resetting connector moved down when moving back.

6. the double-color mold according to claim 5 with free-wheeling system, it is characterized in that: the resetting connector includes solid The plug (31) being scheduled on top item (10) and the plug socket (32) being fixed on top plate (5), the head of the plug (31) is in Cone cell and side wall are provided with the coronary sulcus (34) of annular, and the slot for plug (31) grafting is opened up on the plug socket (32) (33), slot (33) inner wall offers perforative mounting groove (36), be provided in the mounting groove (36) for it is coronal The sphere (37) of ditch (34) clamping, the interior bottom of the slot (33) is provided with for driving sphere (37) retraction mounting groove (36) Elastic slide block (35), the plug socket (32) are socketed with outside for driving sphere (37) protrusion slot (33) inner wall to be caught in coronary sulcus (34) slide (38), slide (38) inner wall open up fluted (39), the slide (38) and plug socket (32) bottom it Between be provided with elastic component (40), when the groove (39) and mounting groove (36) are in corresponding position, the elastic component (40) is in Compressive state is convexly equipped with the extension (41) for being pushed by pedestal (1) on the slide (38).

7. the double-color mold of free-wheeling system is had according to claim 4 or 6, it is characterized in that: the rear mold (44) includes Lower plate (18) and upper plate (17), the punch-pin (4) are arranged on upper plate (17), are provided with ejecting product on the upper plate (17) Push plate, the thimble are against in push plate far from the one end of top plate (5), and the punch-pin (4) includes internal model (21) and external mold (20), institute It states internal model (21) to be fixed on lower plate (18), the external mold (20) is fixed on upper plate (17), and the external mold (20) includes fixing It portion (201) and inside contracts portion (202), the internal model (21) is tapered and inside contracts including portion (202) be slidably connected along die sinking direction On mould (21), described portion (202) outer wall that inside contracts is convexly equipped with buckle (19), and being provided on the top plate (5) will push up on upper plate (17) Mandril (45).

8. the double-color mold according to claim 7 with free-wheeling system, it is characterized in that: being provided in the lower plate (18) Hook (24) offers the sliding slot (25) for mandril (45) along the sliding of die sinking direction, the sliding slot (25) on the hook (24) Through hook (24), card slot (26) are equipped at the sliding slot (25), are provided with the bullet for being caught in card slot (26) on the upper plate (17) Property fixture block, the top of the mandril (45) is against elastic clamping block bottom, offers on the upper plate (17) and inside contract for elastic clamping block Holding tank, be provided with the first inclined-plane (29) for driving elastic clamping block to inside contract, the elastic card at the top of card slot (26) inner wall It is provided on block and abuts the second inclined-plane (30) being adapted to the first inclined-plane (29).

9. the double-color mold according to claim 7 with free-wheeling system, it is characterized in that: the pedestal (1) and lower plate (18) it is provided between supporting block (7), the supporting block (7) is symmetrical arranged and side is fixed on lower plate (18), and the other side is put It sets on pedestal (1).

10. the double-color mold according to claim 3 with free-wheeling system, it is characterized in that: the gear (12) is along axial direction It is extended with bulge loop (42), is socketed with bearing (43) on the bulge loop (42), be provided on the pedestal (1) and be adapted to bearing (43) And for mounting hole that top pillar (11) passes through.