CN105563768B

CN105563768B - A kind of demolding structure of injection mold

Info

Publication number: CN105563768B
Application number: CN201510961156.0A
Authority: CN
Inventors: 杨鸥
Original assignee: Zhejiang Nuoge Automobile Mould Co Ltd
Current assignee: Zhejiang Nuoge Automobile Mould Co Ltd
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2017-11-21
Anticipated expiration: 2035-12-18
Also published as: CN105563768A

Abstract

A kind of demolding structure of injection mold, including fixed half and moving half, the cover half includes the first fixed mold core, second fixed mold core and cover half seat, first fixed mold core and the second fixed mold core are embedded in cover half seat, first fixed mold core is in the through hole worn away from the second fixed mold core side for Angle Pin, the Angle Pin and dynamic model abut against, the top of first fixed mold core is provided with guide rod, the guide rod includes horizontal segment and tilting section, the lower surface of the horizontal segment is mutually fixed with the top of Angle Pin, the movable block that can be moved along tilting section is arranged with the tilting section, the movable block can move on tilting section, the lower section of the movable block is provided with curved lever.So as to which Angle Pin can drive the first fixed mold core and curved lever to be separated with product simultaneously when the demoulding, and then substantially increase the efficiency of the demoulding, save the step of distribution is stripped, and be also beneficial to improve the integrality of product.

Description

A kind of demolding structure of injection mold

Technical field

The present invention relates to field of plastics processing, more particularly to a kind of demolding structure of injection mold.

Background technology

Injection mold is a kind of instrument for producing plasthetics；Also plasthetics complete structure and accurate dimension are to confer to Instrument.In the prior art, most injection mold includes fixed half and moving half, while it is also possible to carry curved lever, and one As in the case of, in order to ensure the integrality of product, thus staff during the demoulding often one by one in order by mould The part removing of tool, so as to greatly reduce the production efficiency of injecting products, and also it is unfavorable for re-assemblying for mould.

The content of the invention

To be taken off in view of the deficienciess of the prior art, it is an object of the invention to provide a kind of high injection mold of demoulding efficiency Mode structure.

To achieve the above object, the invention provides following technical scheme：A kind of demolding structure of injection mold, including it is fixed Mould and dynamic model, the cover half include the first fixed mold core, the second fixed mold core and cover half seat, first fixed mold core and the second fixed mold core It is embedded in cover half seat, first fixed mold core is described oblique in the through hole worn away from the second fixed mold core side for Angle Pin The edge of guide pillar and dynamic model abuts against, and the top of first fixed mold core is provided with guide rod, the guide rod include horizontal segment and Tilting section, the lower surface of the horizontal segment are mutually fixed with the top of Angle Pin, and being arranged with the tilting section can be along tilting section phase To mobile movable block, the lower section of the movable block is provided with curved lever.

Present invention tool has the advantage that：When Angle Pin away from the second fixed mold core side to when movement, it not only can be with Easily the first fixed mold core is separated from product by the principle of lever, second can be deviated from together with action-oriented bar again Fixed mold core side is moved, in the process because movable block and curved lever mutually limit, in guide rod relative movement block motion Meanwhile movable block can also move upwards along the tilting section of guide rod, and curved lever is carried out from product, realized fast The speed demoulding.In this process only by the effect of Angle Pin with regard to easily having carried out the de- of the first fixed mold core and curved lever Mould step, the efficiency of injection production is so substantially increased, be also beneficial to product and keep the property completed.

Furthermore its fixed mold core is divided into the first fixed mold core and the second fixed mold core, so reduce the demoulding when product also The possibility being embedded in fixed mold core, meanwhile, it is also beneficial to avoid the demoulding from making, fixed mold core is excessive to the effective active area of product And cause it there may be flaw.

Preferably, the dynamic model is provided with the slot to make way placed for Angle Pin.

The place that generally Angle Pin abuts with dynamic model, it is all often with sharp seamed edge, is so tiltedly being led In post moving process, easily with the seamed edge of dynamic model serious friction occurs for Angle Pin, so as to will result in Angle Pin and dynamic model Damage.And chute just exactly slow down the friction between dynamic model and Angle Pin, so as to extend this mold use life-span.Together When, slot to make way can provide enough spaces for Angle Pin again, so as to ensure that it interior can be manufactured into sufficiently long length.

Preferably, the guide rod tilts upward, the curved lever is vertically arranged with guide rod.

On the one hand guide rod can be made to be concentrated mainly on to the active force of movable block on the direction of vertically-guided bar, so had Help reduce active force, and then the substantial amounts of energy can be saved, meanwhile, for guide rod when movement, curved lever can be with most Fast speed is lifted up, and so favorably improves the quality of product after the speed of the demoulding, and the demoulding.

Preferably, the curved lever is fixed together with movable block by fixed cover, the curved lever offsets with dynamic model Connect.

Because the size of curved lever is general all smaller, thus intensity can compare it is small, in order to not allow mould in addition to die Other positions touch product, exposed above product so as to have a part curved lever when injection, it is so exposed into Curved lever on product easily bends or even is broken because stress is excessive when the demoulding or reset.And in curved lever and shifting It is fixed together between motion block by fixed cover, equivalent to the exposed size in product upper part for increasing curved lever, so that The intensity of its curved lever is improved, extends its service life.

Preferably, the horizontal segment is connected with the first power set away from the second fixed mold core side, on the movable block The 3rd power set are connected along curved lever, second fixed mold core connects the second power set away from the first fixed mold core side.

The first power set are set in horizontal segment, when the movement of such horizontal segment, while curved lever and tiltedly will be driven Guide pillar is carried out simultaneously, because active force is the common portion between Angle Pin and curved lever, can so reduce wherein one Part stress is excessive and causes the flimsy possibility in the part.

Simultaneously as guide rod has the active force along curved lever direction to shaping column, so as to the 3rd power dress set Put, the realization of the active force can be completed.It on the one hand can so reduce the frictional force between movable block and guide rod, separately On the one hand the active force that guide rod deviates from the second fixed mold core direction to caused by movable block can also be offset.And the second power set It can facilitate and depart from the second fixed mold core from product.

Preferably, first power set, the second power set and the 3rd power set are distinguished by piston rod It is connected with horizontal segment, the second fixed mold core and movable block.

Using piston rod come exposure level section, the second fixed mold core and movable block phase, power set can be so reduced in mould Have the space shared by inside, so as to ensure that the demoulding movement for fixed mold core and curved lever provides larger space, and then make Product can keep complete after demoulding, convenient from shape chamber from being removed.

Preferably, the head horizontal cross-section of the piston rod is dove-tail form, the horizontal segment, the second fixed mold core and movement Block is provided with the dovetail groove to match with the head of piston rod.

By the cooperation that head section is dove-tail form piston rod and dovetail groove, facilitate piston rod and determine with horizontal segment, second Dismantled between die and movable block, mould is overhauled so as to be advantageous to staff.

Preferably, the cover half is provided with the first slideway slided for horizontal segment, slided for the second fixed mold core second Slideway and the 3rd slideway slided for movable block.

By the setting of the first slideway, the second slideway and the 3rd slideway, can effectively to horizontal segment, the second fixed mold core and Guide effect is played in the movement of movable block, so as to so that each part when the demoulding it is separately more accurate along fixed-direction Really, and then advantageously ensure that product is more complete and attractive in appearance.

Preferably, first power set are arranged at the end of the first slideway, second power set are arranged at The end of second slideway, the 3rd power set are in the top of cover half.

Power set are arranged on to the outside of mould, can so reduce it to the space occupied by mould inside, so that The space of abundance is provided for the movement of other important components, meanwhile, be advantageous to improve demoulding efficiency, power can also be avoided to fill Put and polluted by liquid plasticses.

Brief description of the drawings

Fig. 1 is a kind of injection mold explosive view one；

Fig. 2 is a kind of injection mold explosive view two；

Fig. 3 is the structural representation one of injection mold demolding structure；

Fig. 4 is the structural representation two of injection mold demolding structure；

Fig. 5 is the structural representation three of injection mold demolding structure；

Fig. 6 is the structural representation four of injection mold demolding structure；

Fig. 7 is the structural representation of curved lever；

Fig. 8 is the explosive view of curved lever；

Fig. 9 is the installation diagram of Angle Pin and guide rod；

Figure 10 is the structural representation of the first power set；

Figure 11 is the partial enlarged drawing at Fig. 2 A.

In figure：1st, cover half；2nd, dynamic model；3rd, the first fixed mold core；4th, the second fixed mold core；5th, cover half seat；6th, Angle Pin；7th, lead to Hole；8th, guide rod；81st, horizontal segment；82nd, tilting section；9th, resigning hole；10th, block is covered；11st, compact heap；12nd, movable block；13rd, it is molded Bar；14th, slot to make way；15th, fixed cover；16th, the first power set；17th, the second power set；18th, the 3rd power set；19th, it is living Stopper rod；20th, dovetail groove；21st, the first slideway；22nd, the second slideway；23rd, the 3rd slideway.

Embodiment

Embodiments of the invention are described further referring to figs. 1 to Figure 11.

A kind of demolding structure of injection mold, including cover half 1 and dynamic model 2, cover half 1 include the first fixed mold core 3, the second cover half Benevolence 4 and cover half seat 5, the first fixed mold core 3 and the second fixed mold core 4 are embedded in cover half seat 5 by same mosaic block, the first fixed mold core 3 in the through hole 7 worn away from the side of the second fixed mold core 4 for Angle Pin 6, and the Angle Pin 6 is tilted towards the top of cover half 1 and set. The lower end of Angle Pin 6 and the edge of dynamic model 2 abut against.

The top of the benevolence of first cover half 1 is provided with guide rod 8, and the top of cover half seat 5 opens up the resigning hole that promising guide rod 8 is stepped down 9, such guide rod 8 can be manufactured into enough length.Guide rod 8 includes horizontal segment 81 and tilting section 82, horizontal segment 81 Lower surface and the top of Angle Pin 6 are fixed by covering block 10 and the phase of compact heap 11, and set block 10 is sheathed on the top of Angle Pin 6, pressure Tight block 11 is arranged between set block 10 and horizontal segment 81, and set block 10, compact heap 11 and horizontal segment 81 are connected through a screw thread, should The connection at place can also be fixed by other dismountable modes.So as to facilitate tearing open between Angle Pin 6 and guide rod 8 Unload.

The movable block 12 that can be relatively moved along tilting section 82 is arranged with tilting section 82, the lower section of movable block 12 is provided with shaping Bar 13.The cross section of tilting section 82 is rectangle, and the sets of holes of movable block 12 are also rectangle, so as to the effectively fixed He of movable block 12 Position between guide rod 8, and be mutually perpendicular to, and then movable block 12 and tilting section 82 are prevented when relative motion, send out The possibility of raw deflection up and down, while also ensure that guide rod 8 to the active force of movable block 12 mainly in the side of vertically-guided bar 8 Upward, therefore less frictional force can be produced between the two.

By above-mentioned structure, when guide rod 8 is mobile when, it will drive Angle Pin 6, due to Angle Pin 6 with Have application point between first fixed mold core 3, and plus Angle Pin 6 incline direction with its direction of motion in the demoulding on the contrary, So as to which according to lever raw material, Angle Pin 6 is just easier to drive the first fixed mold core 3 to away from the lateral movement of the second fixed mold core 4 one.Phase Driven than being directly directed to bar 8 in the first fixed mold core 3, drive the first fixed mold core 3 effectively to prevent first using Angle Pin 6 Fixed mold core 3 blocks.

Furthermore guide rod 8 can drive Angle Pin 6 to be moved away from the side of the second fixed mold core 4, in the process due to movement The mutual limitation of block 12 and curved lever 13, guide rod 8 is not easy to move to both sides, and guide rod 8 relatively moves what block 12 moved Meanwhile movable block 12 also can the tilting section 82 of vertically-guided bar 8 moved to vertical upper, and curved lever 13 is carried out from product Come, realize fast demoulding.

Only by the effect of Angle Pin 6 with regard to easily carrying out the first fixed mold core 3 and shaping in this whole process The demoulding step of bar 13, the efficiency of injection production is so substantially increased, be also beneficial to keep the completion of product.

Due to being located on the first fixed mold core 3 in Angle Pin 6 and being abutted against with the edge of dynamic model 2, such Angle Pin 6 exists Edge when motion easily with dynamic model 2 produces friction, and then Angle Pin 6 can be caused mutually to be worn with the edge of dynamic model 2.For This, inclined slot to make way 14, and the size of the slot to make way 14 and the cross section of Angle Pin 6 are offered in the edge of dynamic model 2 Size matches, so as to which Angle Pin 6 can be embedded in the slot to make way 14.Become because the edge of dynamic model 2 is contacted by original point Into face contact, both contact surfaces are so substantially increased, and then pressure between the two is reduced, mill between the two Damage degree is also greatly reduced.

Further scheme is that the incline direction of curved lever 13 is vertical with the tilting section 82 of guide rod 8, is so led in movement When to bar 8, curved lever 13 can be spun off with most short distance and most fast speed from finished product, be protected so as to also favourable Demonstrate,prove the complete of forming hole.

Furthermore in order to meet the requirement of client, the quantity of curved lever 13 and position can be set according to specific requirement.This Place, the quantity of curved lever 13 is two, and is positioned at the both sides of product and into symmetrically arranged.And due to forming hole here That compares is small, thus use curved lever 13 can compare it is thin because the intensity of the curved lever 13 is just greatly reduced, along with for Miscellaneous part in addition to fixed mold core and mavable module core does not touch product, so the length for the comparison that curved lever 13 is set, thus It easily causes bending or fracture.

Therefore, being arranged with fixed cover 15 on curved lever 13, and between fixed cover 15 and movable block 12 connected by screw thread Connect.The exposed size outside product of curved lever 13 is so increased, so as to improve the intensity of this section, it is reduced and is bent Possibility.And fixed cover 15 simply slightly adds the size of curved lever 13, so also mould excessively will not be occupied In space, and touch product.And staff overhauls to curved lever 13 for convenience, herein, curved lever 13 and fixation Set 15 is dismountable.

Embodiment 1,

Blind hole on fixed cover 15 is provided with internal thread, and curved lever 13 is provided with external screw thread, fixed cover 15 and curved lever 13 it Between mutual connection realized by the cooperation of screw thread, so on the one hand fixation is more firm, and dismounting is also more convenient, and Curved lever 13 is slightly larger than 13 whole length of curved lever with the length that after the installation of fixed cover 15, curved lever 13 enters in fixed cover 15 Half, such fixed cover 15 can be advantageous to curved lever 13 and departed from from finished product with larger to the active area of curved lever 13, and It is not easy to be broken curved lever 13.

Embodiment 2,

The head section of curved lever 13 is oval, and the blind hole aperture of fixed cover 15 also ovalisation, and in shaping The head of bar 13 matches, and the bottom of blind hole is circular trough, and the radius of the circular trough is equal with the major semiaxis in blind hole aperture, And thickness is equal with the head of curved lever 13, as long as being attached to so as to the head of curved lever 13 along blind hole aperture direction in circular trough Afterwards, can is rotated by 90 ° to be securely seated between curved lever 13 and fixed cover 15 together.And unloading process can enter along inverse process OK.

Further scheme is that horizontal segment 81 is connected with the first power set 16 away from the side of the second fixed mold core 4, mobile The 3rd power set 18 are connected along curved lever 13 on block 12, the second fixed mold core 4 connects the second power away from the side of the first fixed mold core 3 Device 17.Horizontal segment 81, the fixed mold core 4 of movable block 12 and second are operated by power set, thus can be from three Direction carries out stripping operation to cover half 1, so as to substantially increase the efficiency of the demoulding.

And first power set 16 are set in horizontal segment 81, when such horizontal segment 81 moves, while it will drive into Type bar 13 and Angle Pin 6 are carried out simultaneously, because active force is the common portion between Angle Pin 6 and curved lever 13, so A portion stress can be reduced excessive and cause the flimsy possibility in the part.

And the incline direction that the 3rd power set 18 are curved levers 13 is set, that is, the effect of the 3rd power set 18 Direction is the incline direction of vertically-guided bar 8, and so during the demoulding, movable block 12 is due to by the 3rd power set 18 effect, greatly reduce the active force between the running-on of movable block 12 and guide rod 8, effectively reduce guide rod 8 with Abrasion between movable block 12.

Also, the first power set 16, the second power set 17 and the 3rd power set 18 pass through piston rod 19 and water Flat section 81, the Renhe movable block 12 of the second cover half 1 are connected, and herein, the first power set 16, the second power set 17 and the 3rd are dynamic Power apparatus 18 is cylinder.Moreover, the head horizontal cross-section of piston rod 19 is dove-tail form, the horizontal segment 81, the second cover half 1 Renhe movable block 12 is provided with the dovetail groove 20 to match with the head of piston rod 19, so on the one hand fixes also between the two more Firmly, the dismounting between piston rod 19 and dovetail groove 20 on the other hand can also be realized, anti-just staff examines to mould Repair.

Certainly, dismantling connection herein can also be preventing for clamping, and claw is set such as at the head of piston rod 19, and Make original dovetail groove 20 into neck, be so also beneficial to realize both fix and tear open by the cooperation of claw and neck Unload.

In addition, in order to ensure that guide rod 8, the fixed mold core 4 of movable block 12 and second can enter along the direction of putting pre-set Row movement, slided so being provided with first that guide rod 8, the fixed mold core 4 of movable block 12 and second can be supplied to slide respectively on cover half seat 5 Road 21, the second slideway 22 and the 3rd slideway 23, so as to ensure that, each part can move along prescribed direction in knockout course, improve The efficiency of the demoulding, makes the product after the demoulding more complete, attractive in appearance.Meanwhile first power set 16 and the second power set 17 The end of the corresponding slideway 22 of first slideway 21 and second is separately mounted to, and the 3rd power set 18 are directly installed on dynamic model 2 Outside, so greatly reduce power set and mould inside space occupied so that miscellaneous part can have in mould Enough mobile spaces, so as to reduce the possibility that each part mutually collides, be mould during demoulding more smoothly.

Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of demolding structure of injection mold, including cover half（1）And dynamic model（2）, the cover half（1）Including the first fixed mold core （3）, the second fixed mold core（4）With cover half seat（5）, first fixed mold core（3）With the second fixed mold core（4）It is embedded in cover half seat （5）It is interior, it is characterised in that：First fixed mold core（3）In away from the second fixed mold core（4）Side is provided with and supplies Angle Pin（6）Wear Through hole（7）, the Angle Pin（6）With dynamic model（2）Edge abut against, first fixed mold core（3）Top be provided be oriented to Bar（8）, the guide rod（8）Including horizontal segment（81）And tilting section（82）, the horizontal segment（81）Lower surface and Angle Pin （6）Top mutually fix, the tilting section（82）On be arranged with can be along tilting section（82）The movable block of relative movement（12）, it is described Movable block（12）Lower section be provided with curved lever（13）.

A kind of 2. demolding structure of injection mold according to claim 1, it is characterised in that：The dynamic model（2）It is provided with For Angle Pin（6）The slot to make way of placement（14）.

A kind of 3. demolding structure of injection mold according to claim 1, it is characterised in that：The guide rod（8）Tilt Upwards, the curved lever（13）With guide rod（8）It is vertically arranged.

A kind of 4. demolding structure of injection mold according to claim 3, it is characterised in that：The curved lever（13）With shifting Motion block（12）Pass through fixed cover（15）It is fixed together, the curved lever（13）With dynamic model（2）Abut against.

A kind of 5. demolding structure of injection mold according to claim 1, it is characterised in that：The horizontal segment（81）Deviate from Second fixed mold core（4）Side is connected with the first power set（16）, the movable block（12）On along curved lever connect the 3rd power Device（18）, second fixed mold core（4）Away from the first fixed mold core（3）Side connects the second power set（17）.

A kind of 6. demolding structure of injection mold according to claim 5, it is characterised in that：First power set （16）, the second power set（17）With the 3rd power set（18）Pass through piston rod（19）Respectively with horizontal segment（81）, second Fixed mold core（4）And movable block（12）It is connected.

A kind of 7. demolding structure of injection mold according to claim 6, it is characterised in that：The piston rod（19）Bar Head section is dove-tail form, the horizontal segment（81）, the second fixed mold core（4）And movable block（12）It is provided with and piston rod（19）Head The dovetail groove to match（20）.

A kind of 8. demolding structure of injection mold according to claim 7, it is characterised in that：The cover half（1）It is provided with For horizontal segment（81）The first slideway slided（21）, for the second fixed mold core（4）The second slideway slided（22）With for movable block （12）The 3rd slideway slided（23）.

A kind of 9. demolding structure of injection mold according to claim 8, it is characterised in that：First power set （16）It is arranged at the first slideway（21）End, second power set（17）It is arranged at the second slideway（22）End, institute State the 3rd power set（18）It is arranged at cover half（1）Top.