CN206796435U - A kind of secondary core extracting structure for preventing core from retreating - Google Patents
A kind of secondary core extracting structure for preventing core from retreating Download PDFInfo
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- CN206796435U CN206796435U CN201720338041.0U CN201720338041U CN206796435U CN 206796435 U CN206796435 U CN 206796435U CN 201720338041 U CN201720338041 U CN 201720338041U CN 206796435 U CN206796435 U CN 206796435U
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Abstract
The utility model discloses a kind of secondary core extracting structure for preventing core from retreating, including cover half, dynamic model, slidable secondary core extracting sliding block is provided with dynamic model, slidable one-level core-pulling slide block is provided with secondary core extracting sliding block, and the core pulling core being axially movable, the glide direction of one-level core-pulling slide block is identical with the glide direction of secondary core extracting sliding block, the front end of one-level core-pulling slide block is provided with T-shaped slot, the rear end of core pulling core is provided with the T-shaped connector fitted in T-shaped slot, the rear end of one-level core-pulling slide block is connected with the piston rod of a core pulling oil cylinder, when dividing mould, core pulling oil cylinder slides backward one-level core-pulling slide block, one-level core pulling is completed so as to drive core pulling core barrel to draw back；When being moved on to after one-level core-pulling slide block, that is, drive secondary core extracting sliding block to retreat and realizes secondary core extracting.The utility model is suitable for the same lateral side core-pulling in shape with two any directions on product, avoids core pulling core from producing retrogressing in shaping.
Description
Technical field
A kind of injection mold is the utility model is related to, more particularly, to a kind of secondary core extracting knot for preventing core from retreating
Structure.
Background technology
Plastic cement products are very universal in production and daily life, and wherein injection molding is then most commonly seen one
Kind plasthetics molding mode, it generally includes the cover half on the upside of die joint, the dynamic model on the downside of die joint and top plate etc., wherein
Cover half be provided with sprue bush, forming part corresponding with the upper and lower surface of product is respectively equipped with fixed half and moving half.For
The product after shaping is set to rest on dynamic model side, the forming part on usual cover half is die cavity corresponding with the profile of product,
And the forming part on dynamic model is core corresponding with the inner chamber of product.When injection mold is fixed on injection machine, injection machine
Injecting head projects the molten plastic cement of high pressure, and plastic cement enters the molding cavity being made up of die cavity and core by the running channel that enters of cover half
It is interior, product is become after cooling, and then dynamic model, top plate etc. divide mould relative to cover half movement, and the product of shaping is because of cooling meat
And rest on the core of dynamic model, now top plate acts, and drives push rod ejecting product from core, you can product is removed, so as to
Complete single injection-molded.
When the product of injection molding is with the lateral shape such as sidewise hole of the parting direction with angle, groove, it is necessary to
Corresponding core-pulling mechanism is set on mould, to be used for being molded lateral shape during parting after mould molding by core-pulling mechanism
The core of shape is extracted out in advance, and so as to facilitate the separation of dynamic model and cover half, the core for avoiding laterally being molded goes out to be molded as to product
Interference.Core-pulling mechanism is typically by the mechanical structures such as Angle Pin, angled-lift splits, or the hydraulic mechanism driving side such as hydraulic jack
Core, sliding block to shaping etc. are displaced sideways, so as to realize side core-pulling.When in the lateral shape on product simultaneously have with
During the different sidewise hole slot structure in the core pulling direction of lateral shape, then need to set two sets of side core-drawing mechanisms.For example, one kind exists
In Chinese patent literature disclosed " coring device in sliding block of injection mold ", its publication No. is CN102248641A, specific bag
Include horizontal core-pulling slide block, longitudinal core-pulling slide block, spring, affect bar, release link, longitudinal core-pulling slide block therein, which is arranged on, laterally to be taken out
In core sliding block.What the mould structure was adapted to is in lateral hole slot while has a product of longitudinal hole slot, mould when molding, if
The longitudinal core-pulling slide block put in horizontal core-pulling slide block first acts, and realizes longitudinal core pulling, during avoiding horizontal core-pulling slide block from acting
Longitudinal core-pulling slide block causes to interfere to product；Then horizontal core-pulling slide block action, realizes horizontal core pulling, so as to realize product
The core pulling of both direction in length and breadth.
However, there are the following problems for the core-pulling mechanism for injection mold of above-mentioned achievable both direction core pulling, it is two first
The core pulling direction of core-pulling mechanism is intersecting in 90 degree, that is to say, that it can only be molded while need longitudinal core pulling（With the parting of mould
Direction is consistent）With horizontal core pulling（It is vertical with the parting direction of mould）Product, when the lateral shape on product and lateral shape
The core pulling direction of lateral hole slot in shape is more than 0 degree with the angle of the parting direction of mould, less than 90 degree when, above-mentioned tube bundle extracting machine
Structure will be unable to complete core pulling action.Especially since the side core-pulling of both direction needs to use two sets of independent core-pulling mechanisms,
Therefore, the complicated integral structure of mould, manufacturing cost is high, and the action for being unfavorable for two core-pulling mechanisms coordinates and coordinated, and holds
It is also easy to produce and interferes.
Utility model content
The purpose of this utility model is to solve to be difficult in adapt to producing present in existing core pulling structure for injection mold
The same lateral side core-pulling in shape with two any directions of product, mould structure complexity, easy the problem of producing interference,
A kind of secondary core extracting structure for preventing core from retreating is provided, is not only simple in structure reliably, and be suitable for the same side on product
To the side core-pulling in shape with two any directions, the core pulling institute for being effectively prevented from both direction is easily caused mutually dry
Relate to.
To achieve these goals, the utility model uses following technical scheme：
A kind of secondary core extracting structure for preventing core from retreating, including the cover half on top, the dynamic model of bottom and ejector
Structure, forming part corresponding with the upper and lower surface of product is respectively equipped with the cover half, dynamic model, be provided with dynamic model slidable
Secondary core extracting sliding block, the secondary core extracting sliding block are provided with forming ends corresponding with the lateral shape that product needs side core-pulling,
Slidable one-level core-pulling slide block is provided with secondary core extracting sliding block and is axially movable and is used for the sidewise hole of shaped article
The core pulling core of groove, the glide direction of one-level core-pulling slide block is identical with the glide direction of secondary core extracting sliding block, is used on core pulling core
The forming ends of secondary core extracting sliding block is stretched out in the front end of the lateral hole slot of shaped article, the front end of one-level core-pulling slide block is provided with and one
The T-shaped slot of the glide direction of level core-pulling slide block vertically, the rear end of core pulling core are provided with the T-shaped connection fitted in T-shaped slot
Head, the rear end of one-level core-pulling slide block are connected with the piston rod of a core pulling oil cylinder, and the cover half is provided with can locking core pulling core
Backing stop structure.
The utility model sets one slidable one in the secondary core extracting sliding block for the lateral shape of shaped article
Level core-pulling slide block, and the piston rod as the core pulling oil cylinder of core pulling power is then connected on one-level core-pulling slide block.So, core pulling is worked as
Cylinder action and when starting core pulling, one-level core-pulling slide block acts in advance, real so as to drive the core pulling core of front end mobile
Existing one-level core pulling.When one-level core-pulling slide block moves into place, you can the movement of secondary core extracting sliding block is driven, so as to realize that two level is taken out
Core.That is, secondary core extracting can be achieved by a core pulling oil cylinder in the utility model.Especially since one-level core pulling is slided
The front end of block is provided with T-shaped slot, and the rear end of core pulling core is provided with the T-shaped connector fitted in T-shaped slot, not only facilitates two
Connection between person, at the same make therebetween can shape in an angle, when one-level core-pulling slide block moves, you can drive core pulling type
Core moves axially and completes core pulling action, while the T-shaped connector of core pulling core rear end then slides in T-shaped slot.Therefore, I
Can make the core pulling direction of core pulling oil cylinder（That is the moving direction of one-level core-pulling slide block）With the glide direction phase of secondary core extracting sliding block
Together, and the moving direction of the moving direction of core pulling core and one-level core-pulling slide block has an angle.So, core pulling oil cylinder can lead to
One-level core-pulling slide block is crossed directly to drive secondary core extracting sliding block mobile and complete secondary core extracting, and one-level core-pulling slide block can drive and take out
Core pattern core completes the one-level core pulling inconsistent with the core pulling direction of secondary core extracting sliding block, and the same lateral shape of product on the one hand can be achieved
Two on shape have the core pullings in different core pulling directions, while can form reliable core pulling step, avoid the corresponding of two core pullings
Interference between mechanism, while the precedence of one-level core pulling and secondary core extracting is can ensure that, avoid in no completion one-level core pulling
Shi Jinhang secondary core extractings, and then can ensure that the core pulling core being arranged on secondary core extracting sliding block retreats secondary core extracting sliding block when in place
Core pulling is being retreated, is avoiding damaging product because the core pulling of core pulling core is not in place in secondary core extracting.The utility model exists
Cover half be provided with can locking core pulling core backing stop structure so that core pulling core shaping when be in axial lockup state, keep away
Exempt from it and produce retrogressing.
Preferably, the rear end of the one-level core-pulling slide block is provided with T-shaped link slot, the piston rod end of the core pulling oil cylinder
Provided with clutch disk, so that the piston rod end of core pulling oil cylinder is in T shape, the piston rod end provided with clutch disk, which is slided, to be connected
Be connected in T-shaped link slot, the bearing of trend of T-shaped link slot and piston rod it is axially vertical.
Clutch disk can be advantageously connected to piston rod end by bolt, so that piston rod into T-shaped, on the one hand may be used
Make to realize quick connection between piston rod and one-level core-pulling slide block, be easy to follow-up demolition and maintenance, while can reduce and one-level is taken out
Coherence request between the glide direction of core sliding block and the piston rod direction of core pulling oil cylinder, when the slip side of one-level core-pulling slide block
To when there is slight error between the piston rod direction of core pulling oil cylinder, Hai Saigan end can be in the T of one-level core-pulling slide block
Moved in shape link slot, be effectively prevented from stuck phenomenon occur.
Preferably, the secondary core extracting sliding block is provided with the sliding recess of rectangle, the one-level core-pulling slide block is positioned at cunning
In dynamic groove, so as to limit the sliding stroke of one-level core-pulling slide block, the both sides of the sliding recess are respectively equipped with sliding block briquetting,
The relative side of sliding block briquetting is provided with sliding groove, and the both sides of the one-level core-pulling slide block, which are respectively equipped with, is slidably connected at corresponding side
Sliding groove in slide rail.
The sliding recess of rectangle both facilitates processing and manufacturing, while can limit the displacement of one-level core-pulling slide block well,
And be advantageous to reduce the overall dimension of mechanism.Particularly, sliding block briquetting can easily be installed by bolt, while be easy to slide
The processing of groove.
Preferably, the backing stop structure includes the locating rod being vertically situated on cover half, set on secondary core extracting sliding block
There is the pilot hole of insertion forming ends, the core pulling core is slidably connected in pilot hole, is additionally provided with and passes through on secondary core extracting sliding block
The spliced eye of logical pilot hole, the core pulling core are provided with standing block hole in the position of corresponding spliced eye, and the locating rod is vertically
Through spliced eye and fit in standing block hole.
During matched moulds, the locating rod being arranged on cover half can pass vertically through spliced eye and fit in standing block hole, so as to
Core pulling core is reliably positioned in the axial direction, avoid occurring retreating phenomenon during its shaping.
Therefore, the utility model has the advantages that：It is not only simple in structure reliably, and is suitable for same on product
Laterally there is the side core-pulling of two any directions in shape, be effectively prevented from caused by the core pulling easily of both direction mutually
Interference, and core pulling core can be avoided to produce retrogressing in shaping.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is partial sectional view of the utility model at secondary core extracting sliding block.
Fig. 3 is the attachment structure schematic diagram of one-level core-pulling slide block and secondary core extracting sliding block.
In figure：1st, cover half 11, locating rod 2, top plate 21, push rod 3, moving platen 31, feet 32, dynamic model backing plate 4,
Dynamic model pressing plate 5, secondary core extracting sliding block 51, sliding recess 52, sliding block briquetting 521, sliding groove 53, pilot hole 54, core pulling
Core 541, T-shaped connector 542, standing block hole 55, spliced eye 6, one-level core-pulling slide block 61, slide rail 62, T-shaped slot
63rd, T-shaped link slot.
Embodiment
The utility model is further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of secondary core extracting structure for preventing core from retreating, it is applied to needing side core-pulling
Lateral shape in there is the product of the lateral hole slot for needing side core-pulling simultaneously, and the core pulling direction of lateral shape and lateral
The core pulling direction of hole slot is inconsistent, that is to say, that for being molded the big sliding block of lateral shape and type for being molded lateral hole slot
Core or small slide block need core pulling in different directions, and core or the small slide block core pulling for needing first to make the lateral hole slot of shaping and
Separated with product, then can just make big slipper block loose core, so as to avoid the sidewise hole in big slipper block loose core with still remaining in product
Core or small slide block in groove produce Xiang Hu Gan Wataru.
Specifically, the cover half 1 of the secondary core extracting structure of injection mold including top, the dynamic model of bottom and it is arranged on dynamic model
The ejecting mechanism of side, forming part corresponding with the upper surface of product is set, and the downside of cover half has a die joint on cover half.
Dynamic model then includes moving platen 3 and the dynamic model pressing plate 4 being arranged on the downside of moving platen, and the lower surface with product is set on moving platen
Corresponding forming part, the upside of moving platen have a die joint.In addition, two before and after the middle setting insertion on the downside of moving platen
The groove of side, so as to form the feet 31 at left and right sides of moving platen and the dynamic model backing plate 32 on the downside of feet, groove
An ejection space is then formed, top plate 2 is set in the ejection space, if the forming part position that moving platen is corresponded on top plate is set
Dry push rod 21, so as to form ejecting mechanism, so as to the ejecting product after formed product divides mould.Certainly, for the ease of processing, dynamic model
Plate, dynamic model backing plate, feet can be made into Split type structure, and blending bolt is fixed together.
The core-pulling mechanism of product is arranged on dynamic model side by the utility model, specifically, is set slidably on moving platen
Secondary core extracting sliding block 5, secondary core extracting slip front is forming ends corresponding with the lateral shape that product needs side core-pulling, with
Just the core pulling to lateral shape is realized.It should be noted that cover half side is referred to as into upside in the present embodiment, dynamic model side is claimed
For downside, correspondingly, the moving direction of dynamic model is above-below direction when dividing mould, or is longitudinal direction, and correspondingly definition left and right two
Side or transverse direction, when mould on horizontal injection molding machine in use, above-below direction is horizontal direction.Due to injection forming mold
Essential structure belong to the state of the art, do not do excessive description herein.Further, the side of side core-pulling is needed on product
Tilted to shape and lateral hole slot both facing to dynamic model side, and both angles of inclination are inconsistent, and therefore, secondary core extracting is slided
Block tilts from forming ends to rear end towards dynamic model pressing plate side.
In order to realize the core pulling of lateral hole slot, it would be desirable to set the sliding recess of rectangle on the upside of secondary core extracting sliding block
51, and the one-level core-pulling slide block 6 that can be slid back and forth is set in sliding recess.Specifically, as shown in figure 3, can be in sliding recess
Both sides sliding block briquetting 52 is set respectively, the relative side of two sliding block briquettings sets sliding groove 521, then taken out in one-level respectively
The both sides of core sliding block set the slide rail 61 being slidably connected in the sliding groove of corresponding side respectively so that one-level core-pulling slide block and
There is secondary core extracting sliding block identical to slide core pulling direction.In addition, one end is set to penetrate forming ends, another on secondary core extracting sliding block
One end penetrates the pilot hole 53 of sliding recess, and the core pulling core 54 being axially movable, the axle of core pulling core are set in pilot hole
There is an angle between to the moving direction of moving direction and one-level core-pulling slide block, stretch out secondary core extracting sliding block on core pulling core
The front end of forming ends is used for the lateral hole slot of shaped article, and the rear end of core pulling core is stretched into sliding recess.In addition, taken out in one-level
The front end of core sliding block sets the T-shaped slot 62 vertical with the glide direction of one-level core-pulling slide block, is set in the rear end of core pulling core
The T-shaped connector 541 fitted in T-shaped slot.Further, the rear end of one-level core-pulling slide block is set and one-level core-pulling slide block
The vertical T-shaped link slot 63 of glide direction, a core pulling oil cylinder 7 being in tilted layout, the work of core pulling oil cylinder are set on moving platen
The end bolt of stopper rod 71 connects a clutch disk 72, so that the piston rod end of core pulling oil cylinder is in T shape, justifies provided with connection
The piston rod end of disk is slidably connected in T-shaped link slot, so that core pulling oil cylinder can drive one-level core-pulling slide block to move forward and backward.
It should be noted that one end that one-level core-pulling slide block, secondary core extracting sliding block etc. are used to be molded is determined in the present embodiment
Justice is front end, and correspondingly defines rear end and both sides.
When dividing mould after formed product, dynamic model and cover half separate, and core pulling oil cylinder first drives one-level core-pulling slide block to slide backward,
One-level core-pulling slide block drives core pulling core barrel to retreat, until the forming ends of the front end retraction secondary core extracting sliding block of core pulling core
Interior, now the T-shaped connector of core pulling core slides in T-shaped slot, so as to complete the one-level core pulling of product；When one-level core pulling is slided
Block in sliding recess after when moving on to, that is, drive secondary core extracting sliding block to retreat and make forming ends and the lateral shape of product is divided
From so as to realize the secondary core extracting of product, being moved after core pulling core now is synchronous with secondary core extracting sliding block；Then ejecting mechanism will
Product ejects, and operating personnel remove product, you can completes one-shot forming process；When dynamic model and cover half start matched moulds, core pulling oil
Cylinder first drives one-level core-pulling slide block to drive core pulling core axial advancement to stretch in sliding recess slides forwards, one-level core-pulling slide block
Go out forming ends, now the T-shaped connector of core pulling core slides in T-shaped slot；Before one-level core-pulling slide block is in sliding recess
When moving on to, that is, the reach of secondary core extracting sliding block is driven, until secondary core extracting sliding block resets, core pulling core and secondary core extracting now
Sliding block synchronously reach and resets, then dynamic model and cover half matched moulds in place, so as to start the injection molding of next product.
Phenomenon is retreated in order to avoid core pulling core produces in injection molding process, we can be set on cover half can locking
The backing stop structure of core pulling core, specifically, backing stop structure include the locating rod 11 being vertically situated on cover half, and secondary core extracting is slided
The spliced eye 55 for penetrating pilot hole straight down is set on block, and core pulling core sets standing block hole in the position of corresponding spliced eye
542.When starting matched moulds, core pulling oil cylinder, which first passes through one-level core-pulling slide block, makes core pulling core and secondary core extracting sliding block reset completely, so
In place, the locating rod being arranged on cover half can pass vertically through spliced eye and fit in standing block hole for dynamic model and cover half matched moulds afterwards
It is interior, so that core pulling core is reliably positioned in the axial direction, avoid occurring retreating phenomenon during its shaping.And when dividing mould, move
When mould and cover half separate, locating rod separates with core pulling core, and so as to release the locking to core pulling core, core pulling oil cylinder can start
One-level core pulling and secondary core extracting are completed by one-level core-pulling slide block.
Claims (4)
1. a kind of secondary core extracting structure for preventing core from retreating, including the cover half on top, the dynamic model of bottom and ejecting mechanism,
Forming part corresponding with the upper and lower surface of product is respectively equipped with the cover half, dynamic model, it is characterized in that, being provided with dynamic model can
The secondary core extracting sliding block of slip, the secondary core extracting sliding block be provided with it is corresponding with the lateral shape that product needs side core-pulling into
Type end, slidable one-level core-pulling slide block is provided with secondary core extracting sliding block and is axially movable and is used for shaped article
The core pulling core of lateral hole slot, the glide direction of one-level core-pulling slide block is identical with the glide direction of secondary core extracting sliding block, core pulling type
The forming ends of secondary core extracting sliding block is stretched out in front end on core for the lateral hole slot of shaped article, and the front end of one-level core-pulling slide block is set
There is the T-shaped slot vertical with the glide direction of one-level core-pulling slide block, the rear end of core pulling core is provided with the T fitted in T-shaped slot
Shape connector, the rear end of one-level core-pulling slide block are connected with the piston rod of a core pulling oil cylinder, the cover half be provided with can locking take out
The backing stop structure of core pattern core.
2. a kind of secondary core extracting structure for preventing core from retreating according to claim 1, it is characterized in that, the one-level is taken out
The rear end of core sliding block is provided with T-shaped link slot, and the piston rod end of the core pulling oil cylinder is provided with clutch disk, so that core pulling oil cylinder
Piston rod end it is in T shape, the piston rod end provided with clutch disk is slidably connected in T-shaped link slot, T-shaped link slot
Bearing of trend and piston rod it is axially vertical.
3. a kind of secondary core extracting structure for preventing core from retreating according to claim 1, it is characterized in that, the two level is taken out
Core sliding block is provided with the sliding recess of rectangle, and the one-level core-pulling slide block is located in sliding recess, so as to limit one-level core pulling
The sliding stroke of sliding block, the both sides of the sliding recess are respectively equipped with sliding block briquetting, and the relative side of sliding block briquetting, which is provided with, to be slided
Groove, the both sides of the one-level core-pulling slide block are respectively equipped with the slide rail being slidably connected in the sliding groove of corresponding side.
4. a kind of secondary core extracting structure for preventing core from retreating according to claim 1, it is characterized in that, the retaining knot
Structure includes the locating rod being vertically situated on cover half, and secondary core extracting sliding block is provided with the pilot hole of insertion forming ends, described to take out
Core pattern core is slidably connected in pilot hole, and the spliced eye of insertion pilot hole, the core pulling type are additionally provided with secondary core extracting sliding block
Core is provided with standing block hole in the position of corresponding spliced eye, and the locating rod passes vertically through spliced eye and fits in standing block hole
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338041.0U CN206796435U (en) | 2017-03-31 | 2017-03-31 | A kind of secondary core extracting structure for preventing core from retreating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720338041.0U CN206796435U (en) | 2017-03-31 | 2017-03-31 | A kind of secondary core extracting structure for preventing core from retreating |
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| CN206796435U true CN206796435U (en) | 2017-12-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893668A (en) * | 2019-11-25 | 2020-03-20 | 中山市华志模具精密设备科技有限公司 | Two-stage core-pulling mechanism of injection mold |
| CN115366351A (en) * | 2022-02-28 | 2022-11-22 | 浙江凯华模具有限公司 | Inclined core pulling structure in oil cylinder sliding block |
-
2017
- 2017-03-31 CN CN201720338041.0U patent/CN206796435U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893668A (en) * | 2019-11-25 | 2020-03-20 | 中山市华志模具精密设备科技有限公司 | Two-stage core-pulling mechanism of injection mold |
| CN115366351A (en) * | 2022-02-28 | 2022-11-22 | 浙江凯华模具有限公司 | Inclined core pulling structure in oil cylinder sliding block |
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Address after: 315402 788 Tanjialing West Road, Lanjiang Street, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Shentong Science and Technology Group Co., Ltd. Address before: 315408 788 Tanjialing West Road, Yuyao City, Ningbo City, Zhejiang Province Patentee before: Ningbo Shentong Mould & Plastic Co., Ltd. |