CN106079306B

CN106079306B - Utilize more molding molds of insert dovetail core-pulling mechanism

Info

Publication number: CN106079306B
Application number: CN201610732637.9A
Authority: CN
Inventors: 张嘉; 王强; 赵刚
Original assignee: DALIAN LUANYI PRECISION MOULD MANUFACTURING Co Ltd
Current assignee: DALIAN LUANYI PRECISION MOULD MANUFACTURING Co Ltd
Priority date: 2016-08-27
Filing date: 2016-08-27
Publication date: 2018-06-05
Anticipated expiration: 2036-08-27
Also published as: CN106079306A

Abstract

Utilize more molding molds of insert dovetail core-pulling mechanism, belong to thermoplastic plastics shaping mould applications, the present invention is solved the problems, such as by more insert dovetail core-pulling mechanisms present in the positioning of silicon steel sheet group and die molding process, insert A24, insert B25, insert C26 and dynamic model center mold insert 23, which are oriented to slide by dovetail groove, realizes centripetal movement, is the first dress headspace of silicon steel sheet group 37；Sliding block A16 and slide block B 20 realize horizontal motion by shouldered tap bolt A14, spring B 15 and 18 mating reaction of inclined wedge, and silicon steel sheet group 37 is made finally to position；Spring A13, which acts on cover half fuse 12, allows it according to the height of silicon steel sheet group 37 to adjust mold assembling, overcome assembling difficult, it ensure that mould and die accuracy prevents from weighing silicon steel sheet group 37 wounded, this arrangement works is steady reliably, can quickly be accurately positioned silicon steel sheet group 37, product is made smoothly to demould and reaches technology and requirement, die space is efficiently used, it is simple and compact for structure, improve production efficiency.

Description

Utilize more molding molds of insert dovetail core-pulling mechanism

Technical field

The invention belongs to thermoplastic plastics shaping mould applications, relate to the use of more molding moulds of insert dovetail core-pulling mechanism Tool is mainly used in the molding die for the product for needing to be pre-positioned silicon steel sheet group.

Background technology

Motor stator is the important component of the motors such as generator and starter, and stator is motor part and parcel. Stator is made of stator core, stator winding and engine base three parts.The silicon steel sheet group of composition stator generally requires injection molding two Secondary processing.In the prior art, when stator silicon steel sheet group participates in injection molding in the form of inserts, since public affairs are justified in the periphery of silicon steel sheet group Difference is traditionally arranged to be+0.05~0.1mm and height tolerance is traditionally arranged to be ± 0.1~0.3mm, for reality in die design process The required precision of existing mold injection molding ensures that product overall dimensions tolerance and geometric tolerance have mould structure very high want It asks, the method that traditional inserts is mounted directly in die cavity can not realize the quick fine positioning of silicon steel sheet group.

The content of the invention

The object of the present invention is to provide more molding molds of insert dovetail core-pulling mechanism are utilized, by the floating reality of moving platen The now movement of more insert dovetail core-pulling mechanisms, while coordinate the use of cover half suspended slider, realize silicon steel sheet group fine positioning and The stability of plastic parts moulding process.

The technical problem to be solved in the present invention is to provide more molding molds of insert dovetail core-pulling mechanism are utilized, silicon steel is solved Problem present in the positioning of piece group and die molding process makes product smoothly demould and reaches technology requirement and requirement.

The technical scheme is that：Using more molding molds of insert dovetail core-pulling mechanism, structure includes：Cover half bottom Plate 1, hot runner manifold 2, solid plate 3, moving platen 4, dynamic model supporting plate 5, square iron 6, face needle plate 7, bottom needle plate 8, moving clamping plate 9, cover half Insert 10, cover half mold insert 11, cover half fuse 12, spring A13, shouldered tap bolt A14, spring B 15, sliding block A16, take-up housing 17, tiltedly It is wedge 18, positioning plate 19, slide block B 20, moving die insert 21, moving die insert backing plate 22, dynamic model center mold insert 23, insert A24, dynamic Mould mold insert B25, insert C26, sliding slot A27, sliding slot B28, sliding slot C29, shouldered tap bolt B30, draw material mandril 31, spring C32, Mandril 33, limiting plate 34, spring D35, release link spring 36 and silicon steel sheet group 37；It is molding using more insert dovetail core-pulling mechanisms The connection relation of mold is：Fixed clamping plate 1 is contacted with 2 face of hot runner manifold and is locked by bolt, hot runner manifold 2 and solid plate 3 Face contact is locked by bolt, and main cast gate and runner, cover half mold insert 11 and 10 face of fixed die insert are provided on cover half mold insert 11 It contacts and is fitted close and connected by hanging platform, cover half fuse 12 is contacted and is fitted close with 11 face of cover half mold insert and connected by hanging platform, fixed 12 heads of mold core contact tight fit, spring A13 upper bottom surfaces with insert A24, insert B25, insert C26 faces Contacted with 3 face of solid plate, spring A13 bottom surfaces with and 12 face of cover half fuse contact, spring B 15 connects with 10 bottom surface face of fixed die insert Touch surrounding clearance fit, spring B 15 and 20 bottom plane-plane contact surrounding clearance fit of sliding block A16 and slide block B, spring B 15 with shoulder Bolt A14 clearance fits, shouldered tap bolt A14 are threadedly coupled with solid plate 3, shouldered tap bolt A14 and fixed die insert 10, sliding block A16 With 20 clearance fit of slide block B, inclined wedge 18 contacts tight fit with 3 face of solid plate and is locked by bolt, is provided on inclined wedge 18 Skewed slot and inclined-plane are provided with sloping platform and horizontal groove on take-up housing 17, horizontal ledge, hanging platform and resigning are provided on positioning plate 19 The inclined-plane of setting on hole, wherein inclined wedge 18 is contacted and is fitted close with sliding block A16 and 20 face of slide block B, is wherein set on inclined wedge 18 The skewed slot put coordinates with the sloping platform face contact slide set on take-up housing 17, the horizontal groove and positioning plate set on take-up housing 17 The horizontal ledge face contact slide set on 19 coordinates, and the hanging platform set on positioning plate 19 contacts tight fit with 4 face of moving platen It is locked by bolt, the relief hole set on positioning plate 19 and shouldered tap bolt A14 clearance fits；Sliding block A16 and slide block B 20 are divided It does not contact with 17 hanging platform positioning surface of take-up housing and is locked by bolt, contacted below 20 molding state of sliding block A16 and slide block B, limited Position plate 34 contacts tight fit with 3 face of solid plate, and limiting plate 34 and sliding block A16 and 20 face contact slide cooperation of slide block B are to sliding block 20 /V of A16 and slide block B；Dovetail boss and square hanging platform at three are provided on dynamic model center mold insert 23, insert A24, is moved Dovetail straight slot, boss and locating channel, sliding slot A27, sliding slot B28 and cunning are respectively arranged on mould mold insert B25 and insert C26 Straight slot is provided on slot C29, the dovetail straight slot and dynamic model set on insert A24, insert B25 and insert C26 The dovetail boss face contact slide set on center mold insert 23 coordinates, and the boss set on insert A24 on sliding slot A27 with setting The straight slot face contact put is fitted close, and the boss set on insert B25 contacts closely with the straight slot face set on sliding slot B28 Coordinate, the boss set on insert C26 contacts tight fit, dynamic model center mold insert with the straight slot face set on sliding slot C29 The square hanging platform set on 23 contacts tight fit with 5 face of dynamic model supporting plate and is locked by bolt, sliding slot A27, sliding slot B28 and cunning Slot C29 coordinates with moving die insert 21 and 22 face contact slide of moving die insert backing plate, sliding slot A27, sliding slot B28 and sliding slot C29 difference Tight fit is contacted with insert A24, insert B25 and insert C26 faces to be locked by bolt；Moving die insert pad Plate 22 contacts pin positioning with 21 face of moving die insert and is locked by bolt, and moving die insert 21 is contacted with 4 face of moving platen by bolt It is locked；Guide sleeve is provided on moving platen 4, guide post is provided on dynamic model supporting plate 5, moving platen 4 and the contact of 5 face of dynamic model supporting plate are led Set and guide post are slidably matched, and shouldered tap bolt B30 and 5 clearance fit of dynamic model supporting plate, shouldered tap bolt B30 are threadedly coupled with moving platen 4, Material mandril 31 and spring C32 clearance fits are drawn, spring C32 top surfaces are contacted with 7 face of face needle plate, and spring C32 bottom surfaces are with drawing material mandril 31 faces contact, and draw material mandril 31 and 7 clearance fit of face needle plate, and mandril 33 is connected with 7 clearance fit of face needle plate by hanging platform, draw material top The bottom surface of bar 31 and mandril 33 is contacted with 8 face of bottom needle plate, spring D35 and solid plate 3 and 4 clearance fit of moving platen by bolt by its It is fixed on solid plate 3, release link spring 36 and 5 clearance fit of dynamic model supporting plate, top surface and 4 face of moving platen of release link spring 36 Contact, 36 bottom surface of release link spring is contacted with 7 face of face needle plate.

It is using more molding mold working principles of insert dovetail core-pulling mechanism：During die sinking movement, in spring D35 tension The lower solid plate 3 of effect and moving platen 4 separate, and the inclined wedge 18 being fixed on solid plate 3 does the straight line of vertical direction in company with solid plate 3 It moves, the skewed slot set on inclined wedge 18 promotes the sloping platform set on take-up housing 17 to promote take-up housing 17 with movable slider A16 and sliding block B20 is moved in a straight line in the horizontal direction, and horizontal groove is set on take-up housing 17 with being provided with horizontal ledge slip on positioning plate 19, Depart from the horizontal ledge set on positioning plate 19, the sliding block A16 under the action of spring B 15 when setting horizontal groove on take-up housing 17 Continue to separate with slide block B 20, sliding block stops fortune when the hanging platform of shouldered tap bolt A14 is contacted with sliding block A16 and 20 counterbore of slide block B It is dynamic；Under the action of 36 tension of release link spring, moving platen 4 is vertically moving to be separated with dynamic model supporting plate 5, works as shouldered tap bolt 4 stop motion of moving platen when B30 hanging platforms top surface is contacted with 5 counterbore bottom surface of dynamic model supporting plate, shouldered tap bolt B30 hanging platforms and dynamic model supporting plate The distance that moving platen 4 floats when 5 counterbore gaps are equal to die sinking, insert A24 and sliding slot A27 are as a clearing up assembly with moving Mould center mold insert 23 is moved along dovetail groove towards 23 center of circle direction of dynamic model center mold insert, and insert B25 and sliding slot B28 are as one A clearing up assembly is moved with dynamic model center mold insert 23 along dovetail groove towards 23 center of circle direction of dynamic model center mold insert, insert C26 It is transported with sliding slot C29 as a clearing up assembly and dynamic model center mold insert 23 along dovetail groove towards 23 center of circle direction of dynamic model center mold insert Dynamic, the circle reduced diameter being made of at this time the outer arc of insert A24, insert B25 and insert C26 is convenient The installation of silicon steel sheet group 37；In clamping process, spring D35 is contacted with 4 face of moving platen and moving platen 4 is promoted to reset, dynamic model center Mold insert 23 is moved in company with dynamic model supporting plate 5, and insert A24, insert B25 and insert C26 are under the action of dovetail groove Horizontal movement, when moving platen 4 is contacted with 5 face of dynamic model supporting plate, insert A24, insert B25, insert C26 and dynamic Mould center mold insert 23 resets, while 37 inner wall of silicon steel sheet group is positioned, and sliding block A16 and slide block B 20 are contacted with 21 face of moving die insert When spring B 15 compressed, the skewed slot that is set on inclined wedge 18 promotes the sloping platform set on take-up housing 17 to do straight line fortune in the horizontal direction Dynamic, take-up housing 17 is moved with movable slider A16 and slide block B 20, when solid plate 3 and 4 face of moving platen contact, sliding block A16 and slide block B 20 By 37 outer periphery Positioning of silicon steel sheet group, sliding block A16 and the contact of 20 face of slide block B, 12 head boss of cover half fuse are made in spring A13 at this time Tight fit is contacted with insert A24, insert B25, insert C26 respective slots face with lower, due to spring A13's The height of effect cover half fuse 12 can adjust according to the height of silicon steel sheet group 37 and meet mold matching requirements.

The hanging platform bottom of the cover half fuse 12 is provided with gap with the hanging platform counterbore bottom surface set on cover half mold insert 11, should The size in gap is identical with 37 height tolerance of silicon steel sheet group.

It is provided on the insert A24, insert B25 and insert C26 and 37 inner wall shape of silicon steel sheet group The guide groove being consistent, installation process play positioning action.

The beneficial effects of the invention are as follows：By more insert dovetail core-pulling mechanisms solve the positioning of silicon steel sheet group and mold into During type there are the problem of, insert A24, insert B25, insert C26 and dynamic model center mold insert 23 pass through swallow Stern notch, which is oriented to, to be slided, and realizes the centripetal movement of insert A24, insert B25, insert C26, is silicon steel sheet group 37 First dress headspace；Sliding block A16 and slide block B 20 are opened by shouldered tap bolt A14, spring B 15 and 18 mating reaction of inclined wedge realization Mould and the horizontal motion of molding, make silicon steel sheet group 37 finally position；Spring A13, which acts on cover half fuse 12, allows its root Mold assembling is adjusted according to the height of silicon steel sheet group 37, the difficulty in the assembling of 37 short transverse of silicon steel sheet group is overcome, ensure that Mould and die accuracy prevents from weighing silicon steel sheet group 37 wounded, this mould structure stable working is reliable, can quickly be accurately positioned silicon steel sheet group 37, Product is made smoothly to demould and reaches technology requirement and requirement, efficiently uses die space, it is simple and compact for structure, improve production Efficiency.

Description of the drawings

Below in conjunction with attached drawing, illustrated with embodiment.

Fig. 1 is this mold overall schematic one.

Fig. 2 is this mold overall schematic two.

Fig. 3 is the schematic diagram one of the more insert dovetail core-pulling mechanisms of this mold.

Fig. 4 is the schematic diagram two of the more insert dovetail core-pulling mechanisms of this mold.

Fig. 5 is the schematic diagram three of the more insert dovetail core-pulling mechanisms of this mold.

In figure：1 fixed clamping plate；2 hot runner manifolds；3 solid plates；4 moving platens；5 dynamic model supporting plates；6 square iron；7 face needle plates；8 bottoms Needle plate；9 moving clamping plates；10 fixed die inserts；11 cover half mold inserts；12 cover half fuses；13 spring A；14 shouldered tap bolt A；15 spring Bs； 16 sliding block A；17 take-up housings；18 inclined wedges；19 positioning plates 19；20 slide block Bs；21 moving die inserts；22 moving die insert backing plates；In 23 dynamic models Heart mold insert；24 insert A；25 insert B；26 insert C；27 sliding slot A；28 sliding slot B；29 sliding slot C；30 shouldered tap bolts B；31 draw material mandril；32 spring C；33 mandrils；34 limiting plates；35 spring D；36 release link springs；37 silicon steel sheet groups.

Specific embodiment

Describe the specific embodiment of invention in detail with reference to technology word and attached drawing.

When assembling mold, cover half fuse 12 is mounted in the cavity that cover half mold insert 11 processes by hanging platform /V, cover half edge Part 11 is mounted in the cavity that fixed die insert 10 processes by hanging platform /V, and spring A13 is mounted on the counterbore that solid plate 3 processes Interior, fixed die insert 10 is mounted in the cavity that solid plate 3 processes, and bolt locks it with solid plate 3 through solid plate 3 solid Fixed, limiting plate 34 is mounted in the cavity that solid plate 3 processes, itself and solid plate 3 are locked by bolt through solid plate 3, Two pieces of take-up housings 17 are equipped with sliding block A16 and slide block B 20 respectively, and bolt passes through take-up housing 17 by itself and sliding block A16 and slide block B 20 It is locked, the sloping platform that the skewed slot set on inclined wedge 18 is set along take-up housing 17 is equipped with（See Fig. 5）, two pieces shouldered tap bolt A14 Spring B 15 is sleeved on shouldered tap bolt A14 after being each passed through sliding block A16 and slide block B 20, shouldered tap bolt A14, spring B 15 are slided Block A16, take-up housing 17, inclined wedge 18 and slide block B 20 are fitted in as a whole in the cavity that solid plate 3 processes, by limiting plate 34 /V is slidably matched, and shouldered tap bolt A14 head threads tighten cooperation with the wire hole that solid plate 3 processes（See Fig. 3）, bolt passes through Itself and hot runner manifold 2 are locked by solid plate 3, itself and solid plate 3 are locked by bolt through fixed clamping plate 1, spring D35 In the cavity processed mounted on solid plate 3, bolt is fixed in through spring D35 on solid plate 3, and positioning plate 19 is mounted on In the cavity that moving platen processes, itself and moving platen 4 are locked by bolt through positioning plate 19（See Fig. 2）；Insert On A24, insert B25 and insert C26 set dovetail straight slot with set on dynamic model center mold insert 23 three at dovetail Boss assembles respectively, sliding slot A27, sliding slot B28 and sliding slot C29 respectively with insert A24, insert B25 and insert C26 assemblings are locked by bolt（See Fig. 4）, dynamic model center mold insert 23, insert A24, insert B25, insert In the cavity that C26, sliding slot A27, sliding slot B28 and sliding slot C29 are processed as entirety assembling a such as moving die insert 21, bolt is worn It crosses moving die insert backing plate 22 itself and moving die insert 21 are locked, moving die insert 21 is whole as one with moving die insert backing plate 22 Body is fitted in the cavity that moving platen 4 processes, bolt through moving platen 4 and moving die insert backing plate 22 and by moving die insert 21 with Moving die insert backing plate 22 is locked, the cavity that the square hanging platform set on dynamic model center mold insert 23 is processed with dynamic model supporting plate 5 Itself and dynamic model supporting plate 5 are locked by close-fitting, bolt through dynamic model supporting plate 5, and shouldered tap bolt B30 passes through dynamic model supporting plate 5 and dynamic model The threaded connection of plate 4 is locked, and spring C32 is sleeved on drawing material mandril 31 and is fitted in face needle plate 7 together with mandril 33 and processes Jogger hole in, itself and face needle plate 7 are locked by bolt through bottom needle plate 8, and bolt is through moving clamping plate 9 by itself and square iron 6 It is locked, itself and dynamic model supporting plate 5 are locked by bolt through moving clamping plate 9 and square iron 6（See Fig. 1,2）.

Specifically forming process is：After the completion of forming machine injection, under the action of spring D35 tension, solid plate 3 and dynamic model Plate 4 separates first, and sliding block A16 and slide block B 20 separate under the action of 18 thrust of inclined wedge, departs from the outer surface of silicon steel sheet group 37, After take-up housing 17 is separated with positioning plate 19, sliding block is moved along obliquely downward under the action of spring B 15, in release link spring 36 The lower moving platen 4 of effect is vertically moving, and after shouldered tap bolt B30 hanging platforms are contacted with 5 face of dynamic model supporting plate, moving platen 4 stops Movement, the dovetail groove of insert A24, insert B25 and insert C26 along dynamic model center mold insert 23, which slides, departs from silicon steel The inner surface of piece group 37 draws material mandril 31 to move tunnel gate fracture under the action of spring C32 tension, and face needle plate 7 drives Material mandril 31 and mandril 33 is drawn to move eject product together, die sinking process terminates, and is sleeved on silicon steel sheet group 37 before molding dynamic Outside the cylinder of mould mold insert A24, insert B25 and insert C26 compositions, solid plate 3 and dynamic model under the action of forming machine Plate 4 goes in the same direction, and sliding block A16 and slide block B 20 are resetted 37 outer periphery Positioning of silicon steel sheet group, fixed under the action of spring A13 tension Mold core 12 is in close contact with insert A24, insert B25 and insert C26 faces, 12 top surface of cover half fuse and steel disc 37 top surfaces of group are fitted close and seal material, and when solid plate 3 is contacted with 4 face of moving platen, the one-pass molding cycle completes.

The above is the superior embodiment of the present invention, it is noted that for the technology of the technical field of the invention For personnel, without departing from the technical principles of the invention, several improvement and deformation can also be made, these improve and become Shape also should be regarded as protection scope of the present invention.

Claims

1. utilizing more molding molds of insert dovetail core-pulling mechanism, structure includes：Fixed clamping plate（1）, hot runner manifold（2）, it is fixed Template（3）, moving platen（4）, dynamic model supporting plate（5）, square iron（6）, face needle plate（7）, bottom needle plate（8）, moving clamping plate（9）, cover half edge Block（10）, cover half mold insert（11）, cover half fuse（12）, spring A（13）, shouldered tap bolt A（14）, spring B（15）, sliding block A（16）、 Take-up housing（17）, inclined wedge（18）, positioning plate（19）, slide block B（20）, moving die insert（21）, moving die insert backing plate（22）, in dynamic model Heart mold insert（23）, insert A（24）, insert B（25）, insert C（26）, sliding slot A（27）, sliding slot B（28）, sliding slot C（29）, shouldered tap bolt B（30）, draw material mandril（31）, spring C（32）, mandril（33）, limiting plate（34）, spring D（35）, reset Bar spring（36）And silicon steel sheet group（37）；It is characterized in that：Connection relation is cover half fuse（12）Head and insert A （24）, insert B（25）, insert C（26）Face contact is fitted close, inclined wedge（18）On be provided with skewed slot and inclined-plane, it is sliding Block（17）On be provided with sloping platform and horizontal groove, positioning plate（19）On be provided with horizontal ledge, hanging platform and relief hole, wherein tiltedly Wedge（18）On setting inclined-plane and sliding block A（16）And slide block B（20）Face contacts and is fitted close, wherein inclined wedge（18）Upper setting Skewed slot and take-up housing（17）The sloping platform face contact slide cooperation of upper setting, take-up housing（17）The horizontal groove of upper setting and positioning Plate（19）The horizontal ledge face contact slide cooperation of upper setting, limiting plate（34）With sliding block A（16）And slide block B（20）Face contact is slided Dynamic cooperation is to sliding block A（16）And slide block B（20）/V；Dynamic model center mold insert（23）On be provided with dovetail boss and square extension at three Platform, insert A（24）, insert B（25）With insert C（26）On be respectively arranged with dovetail straight slot, boss and positioning Guide groove, sliding slot A（27）, sliding slot B（28）With sliding slot C（29）On be provided with straight slot, insert A（24）, insert B（25）With Insert C（26）The dovetail straight slot of upper setting and dynamic model center mold insert（23）The dovetail boss face contact slide of upper setting is matched somebody with somebody It closes, insert A（24）The boss of upper setting and sliding slot A（27）The straight slot face contact of upper setting is fitted close, insert B （25）The boss of upper setting and sliding slot B（28）The straight slot face contact of upper setting is fitted close, insert C（26）Upper setting it is convex Platform and sliding slot C（29）The straight slot face contact of upper setting is fitted close, dynamic model center mold insert（23）The square hanging platform of upper setting is with moving Die shoe plate（5）Face contact is fitted close to be locked by bolt, sliding slot A（27）, sliding slot B（28）With sliding slot C（29）Respectively with moving Mould mold insert A（24）, insert B（25）With insert C（26）Face contact is fitted close to be locked by bolt；Shouldered tap bolt B（30）With moving platen（4）It is threadedly coupled, spring D（35）With solid plate（3）And moving platen（4）Clearance fit is consolidated by bolt It is scheduled on solid plate（3）On, release link spring（36）Top surface and moving platen（4）Face contacts.

2. according to claim 1 utilize more molding molds of insert dovetail core-pulling mechanism, it is characterised in that：Die sinking movement When, inclined wedge（18）The skewed slot of upper setting promotes take-up housing（17）The sloping platform of upper setting promotes take-up housing（17）Band movable slider A（16） And slide block B（20）It moves in a straight line in the horizontal direction, take-up housing（17）Upper setting horizontal groove and positioning plate（19）On be provided with Horizontal ledge is slided, and works as take-up housing（17）Upper setting horizontal groove departs from positioning plate（19）The horizontal ledge of upper setting, in spring B （15）Under the action of sliding block A（16）And slide block B（20）Continue to separate.

3. according to claim 1 utilize more molding molds of insert dovetail core-pulling mechanism, it is characterised in that：Clamping process In, spring D（35）With moving platen（4）Face contacts and promotes moving platen（4）It resets, dynamic model center mold insert（23）In company with dynamic model supporting plate （5）Movement, insert A（24）, insert B（25）With insert C（26）The horizontal movement under the action of dovetail groove.

4. according to claim 1 utilize more molding molds of insert dovetail core-pulling mechanism, it is characterised in that：Cover half fuse （12）Head boss is in spring A（13）Act on lower and insert A（24）, insert B（25）, insert C（26）It is corresponding Groove surface contact is fitted close, due to spring A（13）Effect cover half fuse（12）Height can be according to silicon steel sheet group（37） Height adjusting meet mold matching requirements.

5. according to claim 1 utilize more molding molds of insert dovetail core-pulling mechanism, it is characterised in that：The cover half Fuse（12）Hanging platform bottom and cover half mold insert（11）The hanging platform counterbore bottom surface of upper setting is provided with gap, the size in the gap with Silicon steel sheet group（37）Height tolerance is identical.

6. according to claim 1 utilize more molding molds of insert dovetail core-pulling mechanism, it is characterised in that：The dynamic model Mold insert A（24）, insert B（25）With insert C（26）On be provided with and silicon steel sheet group（37）What inner wall shape was consistent leads To slot, positioning action is played in installation process.