CN203622843U - Three-plate mechanical core-pulling mold - Google Patents
Three-plate mechanical core-pulling mold Download PDFInfo
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- CN203622843U CN203622843U CN201320843921.5U CN201320843921U CN203622843U CN 203622843 U CN203622843 U CN 203622843U CN 201320843921 U CN201320843921 U CN 201320843921U CN 203622843 U CN203622843 U CN 203622843U
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Abstract
The utility model provides a three-plate mechanical core-pulling mold, which belongs to the technical field of molds and solves the problems of unreasonable design, unstable injection molding and the like in an existing core-pulling mold. The three-plate mechanical core-pulling mold comprises a hot-runner plate, a fixed die medium plate and a moving die medium plate, wherein a core-pulling gap is formed in the fixed die medium plate, a core-pulling device is installed in the core-pulling gap, and a core-pulling through hole is formed in the core-pulling gap. The core-pulling device comprises an abutting assembly and a core block installed in the core-pulling gap, and one end of the core block penetrates through the core-pulling through hole. The abutting assembly is installed on the hot-runner plate, and the core block can be pulled away from the core-pulling through hole through the abutting assembly when the hot-runner plate rises. At least two corresponding traction bar plates are installed outside the hot-runner plate, and locking devices corresponding to the traction bar plates one to one are installed outside the fixed die medium plate. The three-plate mechanical core-pulling mold has the advantages of reasonable design and good stability, and the production cycle of workpieces is shortened.
Description
Technical field
The utility model belongs to technical field of mold, relates to a kind of three plate mechanical type core-pulling dies.
Background technology
As everyone knows, in mold injection field, when processing has the workpiece of particular groove, internal core withdrawing device is conventional structure.In prior art, core-pulling die generally adopts cylinder type core-pulling die.Cylinder type core-pulling die comprises in plate in cover half, dynamic model plate, oil cylinder and is fixed on the pushing block on oil cylinder external part, is provided with die casting die cavity in cover half in plate and dynamic model between plate, is provided with the breach of loosing core communicating with die casting die cavity in cover half on plate.Under original state, above-mentioned oil cylinder drive pushing block stretches into looses core in breach, so that mould completes the injection moulding work of workpiece, in the die sinking course of work, above-mentioned oil cylinder drives pushing block to detach the breach of loosing core, and has so just machined the workpiece with particular groove.
The core-pulling die design of said structure is unreasonable, and injection moulding is unstable, easily produces offset, affects the production cycle of workpiece.In addition, in the course of the work, must first detach oil cylinder and pushing block, could realize the die sinking work of mould, and after matched moulds, again needing to control oil cylinder pushes pushing block to loose core in breach, in constantly detaching and pushing loose core of oil cylinder structure, the risk that mould breaks is larger, has reduced mould stability and has affected service life of mould.
In sum, for solving the deficiency on existing core-pulling die structure, need to design a kind of reasonable in design, good stability, the three plate mechanical type core-pulling dies in minimizing work piece production cycle.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of reasonable in design, good stability, the three plate mechanical type core-pulling dies in minimizing work piece production cycle.
The purpose of this utility model can realize by following technical proposal: a kind of three plate mechanical type core-pulling dies, comprise the top clamping plate setting gradually from top to bottom, hot runner manifold, plate in cover half, plate in dynamic model, Bottom clamp plate, in described cover half, in plate and dynamic model, between plate, be formed with die casting die cavity, in cover half, plate faces on the end face of hot runner manifold and offers the breach of loosing core, in breach, be provided with on core-pulling device and the breach of loosing core and offer the through hole of loosing core communicating with die casting die cavity loosing core, described core-pulling device comprise pellet and be fastened on pellet against assembly, described pellet is arranged on looses core in breach, and pellet one end is passed and is loosed core through hole and be positioned at die casting die cavity, describedly be arranged on hot runner manifold against assembly, and in the time that hot runner manifold rises by pellet being pulled out in the through hole of loosing core against assembly, at hot runner manifold, at least two corresponding traction stripe board that arrange are installed outward, in cover half, plate is provided with outward with to draw stripe board corresponding and can make the locking device that in cover half, plate is fixedly connected with plate in dynamic model one by one, in the time that traction stripe board moves up, can touch locking device and make its inefficacy.
In above-mentioned one three plate mechanical type core-pulling dies, on described pellet, be provided with the spigot surface that is obliquely installed and faces hot runner manifold, describedly comprise leaning seat and Angle Pin against assembly, described Angle Pin one end is inserted solid on leaning seat, the other end is through pellet middle part, described leaning seat upper end is arranged on hot runner manifold, and lower end is provided with the abutment face matching with spigot surface, and described leaning seat can be fastened on the spigot surface of pellet.
In above-mentioned one three plate mechanical type core-pulling dies, the described breach of loosing core have towards the main opening of hot runner manifold and in cover half the secondary opening of plate sidewall, described leaning seat faces on the end face of the secondary opening direction of the breach of loosing core and offers crashproof mounting groove, in described crashproof mounting groove, be provided with against wearing and tearing sheet, loosing core between breach madial wall and corresponding leaning seat end face against wearing and tearing sheet.
In above-mentioned one three plate mechanical type core-pulling dies, on the spigot surface of described pellet, offer wearing and tearing mounting groove, the elasticity wearing and tearing sheet be arrangeding in parallel with spigot surface is installed in described wearing and tearing mounting groove, described leaning seat can be fastened on elasticity wearing and tearing sheet.
In above-mentioned one three plate mechanical type core-pulling dies, described core-pulling device also comprises that symmetry is arranged on two fixed blocks of pellet both sides, the described breach bottom of loosing core is symmetrically installed with on two " C " shape slide rail base plate and each slide rail base plate slide rail is all installed, described pellet is clamped between fixed block and slide rail base plate, described pellet bottom offer with slide rail one to one chute and pellet can be on two slide rails horizontal sliding, described two " C " shape slide rail base plate middle part surrounds slide rail through hole and described Angle Pin through slide rail through hole.
In above-mentioned one three plate mechanical type core-pulling dies, described pellet deviates from the end face of spigot surface and offers symmetrically arranged two pellet spring grooves, in each pellet spring groove, be provided with secondary spring and spring housing, described spring housing is set in outside secondary spring and part stretches in pellet spring groove, and the two ends of described secondary spring are resisted against respectively on spring housing madial wall, pellet spring groove madial wall.
In above-mentioned one three plate mechanical type core-pulling dies, described in the breach of loosing core near the bottom of plate sidewall direction in cover half, stop block is installed, pellet can and finally be resisted against on stop block towards stop block direction horizontal sliding.
In above-mentioned one three plate mechanical type core-pulling dies, described locking device comprises shell, installing plate, slide block, back-moving spring, locking stripe board, described installing plate is arranged in cover half on plate lateral wall, described traction stripe board upper end is arranged on hot runner manifold lateral wall, traction stripe board lower end is through shell, described slide block setting in the enclosure and shape be " C " shape, described locking stripe board lower end is arranged in dynamic model on plate lateral wall, locking stripe board upper end is successively through shell and slide block, described back-moving spring is clamped in slide block away between traction stripe board one end and corresponding shell madial wall, described traction stripe board lower end extends to form and touches projection to locking stripe board direction, described locking stripe board upper end edge deviates from traction stripe board direction and extends to form locking projections, in described locking stripe board, offer lock hole, the dead bolt coordinating with lock hole is installed on described slide block, when matched moulds, locking projections is resisted against on upper end of slide block face and dead bolt is inserted solid in lock hole, in cover half, plate is fixedly connected with plate in dynamic model, when die sinking, on hot runner manifold, move and drive in traction stripe board and move after certain distance, touching projection promotes slide block slippage and makes the dead bolt hole that goes out of lock towards locking stripe board direction, locking device lost efficacy, now in cover half, plate can depart from plate in dynamic model.
In above-mentioned one three plate mechanical type core-pulling dies, on described slide block, be provided with the clamping block with latch installing hole, described slide block and clamping block are connected as a single entity, and described dead bolt is inserted solid in latch installing hole.
In above-mentioned one three plate mechanical type core-pulling dies, slide block offers sliding block spring groove away from traction stripe board one end, and described back-moving spring two ends are resisted against respectively sliding block spring trench bottom with on corresponding shell madial wall.
Compared with prior art, inner core pulling mode of the present utility model adopts mechanical type to loose core, when matched moulds, locking device is fixed together plate in plate in cover half and dynamic model, when die sinking, under extraneous parts effect, top clamping plate moves on together with hot runner manifold, hot runner manifold drives traction stripe board and moves against assembly one is the same simultaneously, meanwhile drive the outside slippage of pellet and make pellet depart from the junction of loose core breach and die casting die cavity against assembly, and now in cover half in plate and dynamic model plate be still fixed together, drive in traction stripe board and move after certain distance at hot runner manifold, traction stripe board lower end is touched locking device and makes its inefficacy, now in cover half, plate can depart from plate in dynamic model, then under extraneous auxiliary spare part effect, in cover half, in plate and dynamic model, plate departs from, such reasonable in design, core-pulling die good stability, in the time of die sinking, loose core and synchronize and carry out with die sinking, without the die sinking again of first loosing core, reduce mould damage rate, workpiece can not produce offset and reduce the work piece production cycle.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of workpiece in the utility model one preferred embodiment.
Fig. 2 is the structural representation of the utility model one preferred embodiment.
Fig. 3 is the part-structure schematic diagram of the utility model one preferred embodiment.
Fig. 4 is that Fig. 3 unloads against the structural representation after assembly.
Fig. 5 is the structure for amplifying schematic diagram at A place in Fig. 4.
Fig. 6 is the structural representation of core-pulling device in the utility model one preferred embodiment.
Fig. 7 is the structural representation at another visual angle of Fig. 6.
Fig. 8 is the explosive view of core-pulling device in the utility model one preferred embodiment.
Fig. 9 is the structural representation against assembly in the utility model one preferred embodiment.
Figure 10 is the structural representation at another visual angle of Fig. 9.
Figure 11 is the structural representation of leaning seat in the utility model one preferred embodiment.
Figure 12 is the structural representation of pellet in the utility model one preferred embodiment.
Figure 13 is the structural representation at another visual angle of Figure 12.
Figure 14 is that in the utility model one preferred embodiment, locking device unloads the structural representation after lower casing.
Figure 15 is the structural representation at another visual angle of Figure 14.
Figure 16 is the structural representation that locks stripe board in the utility model one preferred embodiment.
Figure 17 is the structural representation of slide block in the utility model one preferred embodiment.
In figure, 10, workpiece; 11, machined grooves; 21, top clamping plate; 22, hot runner manifold; 23, plate in cover half; 231, the breach of loosing core; 24, plate in dynamic model; 25, mould pin; 26, Bottom clamp plate; 31, against assembly; 311, leaning seat; 3111, against through hole; 3112, abutment face; 3113, crashproof mounting groove; 312, Angle Pin; 313, against wearing and tearing sheet; 32, pellet; 321, spigot surface; 322, pellet through hole; 323, wearing and tearing mounting groove; 324, pellet spring groove; 33, elasticity wearing and tearing sheet; 34, fixed block; 35, slide rail base plate; 351, slide rail through hole; 36, slide rail; 37, secondary spring; 38, spring housing; 39, stop block; 40, traction stripe board; 41, touch projection; 50, locking device; 51, shell; 52, installing plate; 53, slide block; 531, sliding block spring groove; 54, back-moving spring; 55, locking stripe board; 551, locking projections; 552, lock hole; 553, strengthen projection; 56, dead bolt; 57, clamping block; 571, latch installing hole.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Partial structurtes schematic diagram after being illustrated in figure 1 workpiece 10 and machining.In the course of work, workpiece 10 is obtained by core-pulling die injection mo(u)lding the demoulding, and these three plate mechanical type core-pulling dies can be processed the workpiece 10 with machined grooves 11 similar to Figure 1.
As shown in Figures 2 to 4, these three plate mechanical type core-pulling dies comprise the top clamping plate 21 setting gradually from top to bottom, hot runner manifold 22, plate 23 in cover half, plate 24 in dynamic model, Bottom clamp plate 26, in cover half, in plate 23 and dynamic model, between plate 24, be formed with die casting die cavity, in cover half, plate 23 faces on the end face of hot runner manifold 22 and offers the breach 231 of loosing core, in breach 231, be provided with on core-pulling device and the breach 231 of loosing core and offer the through hole of loosing core communicating with die casting die cavity loosing core, core-pulling device comprise pellet 32 and be fastened on pellet 32 against assembly 31, pellet 32 is arranged on looses core in breach 231, and pellet 32 one end are passed and are loosed core through hole and be positioned at die casting die cavity, be arranged on hot runner manifold 22 against assembly 31, and in the time that hot runner manifold 22 rises by pellet 32 being pulled out in the through hole of loosing core against assembly 31, at least two corresponding traction stripe board 40 that arrange are installed outside hot runner manifold 22, in cover half, outside plate 23, be provided with to draw stripe board 40 corresponding and can make the locking device 50 that in cover half, plate 23 is fixedly connected with plate in dynamic model 24 one by one, in the time that traction stripe board 40 moves up, can touch locking device 50 and make its inefficacy.
Preferably, in dynamic model, between plate 24 and Bottom clamp plate 26, be also provided with mould pin 25.
Specifically, when matched moulds, locking device 50 can make plate 23 in cover half be fixedly connected with plate in dynamic model 24, when die sinking, on hot runner manifold 22, move and drive traction stripe board 40 and move on assembly 31, driving the outside slippage of pellet 32 and make pellet 32 depart from the junction of loose core breach 231 and die casting die cavity against assembly 31 simultaneously, in traction stripe board 40, moving after certain distance, traction stripe board 40 is touched locking device 50 and it was lost efficacy, and now in cover half, plate 23 can depart from plate 24 in dynamic model.
When existing cylinder type core-pulling die die sinking, first detach loose core of oil cylinder structure, then make hot runner manifold 22 separation together with plate in cover half 23, easily produce offset and affect production cycle of workpiece 10.The process of this case die sinking is first to make hot runner manifold 22 separate with plate in cover half 23, realizes and loosing core simultaneously, and then plate 23 in cover half is separated with plate in dynamic model 24.In this case, take out is to be driven against assembly 31 and driven the pellet 32 motion demouldings by hot runner manifold 22, pellet 32 is detached loose core breach 231 and die casting die cavity junction (junction of loose core breach 231 and die casting die cavity corresponding be the machined grooves 11 of workpiece 10, pellet 32 is plugged in the junction of loose core breach 231 and die casting die cavity, that is to say, after the machined grooves 11 of workpiece 10 machines, pellet 32 the inners are resisted against in machined grooves 11).
In addition, in hot runner manifold 22 and cover half, plate 23 adopts three template die structures, and more convenient handle enters cast gate and designs in more satisfactory position, reduces projected area, cast gate self falling, and remaining trace is less.
Shown in Fig. 3, Fig. 5 to Fig. 8 and Fig. 9 to Figure 11, preferably, on pellet 32, be provided with the spigot surface 321 that is obliquely installed and faces hot runner manifold 22, comprise leaning seat 311 and Angle Pin 312 against assembly 31, Angle Pin 312 one end are inserted solid on leaning seat 311, and the other end is through pellet 32 middle parts, and leaning seat 311 upper ends are arranged on hot runner manifold 22, lower end is provided with the abutment face 3112 matching with spigot surface 321, and leaning seat 311 can be fastened on the spigot surface 321 of pellet 32.
Specifically, on leaning seat 311, pellet 32, offer respectively coordinate with Angle Pin 312 against through hole 3111, pellet through hole 322, Angle Pin 312 one end are inserted solid in through hole 3111, the other end is through pellet through hole 322.
The spigot surface that faces hot runner manifold 22 321 tilting arranges, while making mould return to matched moulds state by die opening state, can be along the downward slippage of spigot surface 321 (but leaning seat 311 is not close on spigot surface 321) against assembly 31, and inwardly promote pellet 32 simultaneously, make the inside slippage of pellet 32 and then make pellet 32 insert the junction of loose core breach 231 and die casting die cavity.Further preferably, Angle Pin 312 is 2 ° of angle settings with spigot surface 321, can guarantee machining accuracy like this, makes leaning seat 311 in folding process, there will not be stuck phenomenon.(remarks: if adopt vertically disposed spigot surface 321 or adopt the inclined guide surface 321 that does not face hot runner manifold 22, in the time of matched moulds, cannot promote pellet 32 downwards against assembly 31, blocking and collision can be there is against assembly 31 and pellet 32, matched moulds process cannot be normally realized; If adopt the Angle Pin 312 be arrangeding in parallel with spigot surface 321, owing to having error in actual process, in propelling movement process, may cause, against the stuck pellet of assembly 31 32 middle parts, cannot continuing to promote pellet 32 downwards, affect operating efficiency.）
When die sinking, hot runner manifold 22 drives on leaning seat 311 and moves, leaning seat 311 drives on Angle Pin 312 and moves simultaneously, because spigot surface 321 is obliquely installed, and Angle Pin 312 inserts in pellet through hole 322, and hot runner manifold 22 drives leaning seat 311, the direction of moving on Angle Pin 312 is vertical direction, that is to say, on move past in journey, Angle Pin 312 is slowly upwards slippage in pellet through hole 322, Angle Pin 312 can produce horizontal thrust to pellet through hole 322 inwalls and make pellet 32 towards horizontal direction slippage, pellet 32 is detached loose core the junction of breach 231 and die casting die cavity.When matched moulds, leaning seat 311 moves down and the lower surface of leaning seat 311 is fastened on the upper surface that pellet 32 faces leaning seat 311, and Angle Pin 312 is slowly slippage downwards in pellet through hole 322.
Further preferably, the breach 231 of loosing core have towards the main opening of hot runner manifold 22 and in cover half the secondary opening of plate 23 sidewalls, leaning seat 311 faces on the end face of the breach 231 secondary opening directions of loosing core and offers crashproof mounting groove 3113, in crashproof mounting groove 3113, be provided with against wearing and tearing sheet 313, loosing core between breach 231 madial walls and corresponding leaning seat 311 end faces against wearing and tearing sheet 313.
Material against wearing and tearing sheet 313 can preferentially be selected wear-resisting elastomeric material, when matched moulds, leaning seat 311 is moved down to the effect of playing buffering against wearing and tearing sheet 313, reduce the friction between plate 23 in leaning seat 311 and cover half, alleviate the collision of leaning seat 311 to plate in cover half 23, reduce mould damage rate.Can, according to actual conditions, reasonably select against the material of wearing and tearing sheet 313.
Shown in Fig. 5 to Fig. 8 and Figure 12, preferably, on the spigot surface 321 of pellet 32, offer wearing and tearing mounting groove 323, the elasticity wearing and tearing sheet 33 be arrangeding in parallel with spigot surface 321 is installed in wearing and tearing mounting groove 323, leaning seat 311 can be fastened on the elasticity wearing and tearing sheet 33 of pellet 32.
The material of elasticity wearing and tearing sheet 33 can be selected elastomeric material, and when matched moulds, elasticity wearing and tearing sheet 33 plays the effect of buffering to abutment face 3112, alleviate the collision of leaning seat 311 to pellet 32, reduces noise and reduces mould damage rate.In addition, the material of elasticity wearing and tearing sheet 33 also can be chosen as self-lubricating material, when matched moulds, can play lubrication to abutment face 3112, reduces the friction between leaning seat 311 and pellet 32, increases work efficiency.Can be according to actual conditions, reasonably select the material of elasticity wearing and tearing sheet 33.
As shown in Fig. 5 to Fig. 8, preferably, core-pulling device also comprises that symmetry is arranged on two fixed blocks 34 of pellet 32 both sides, breach 231 bottoms of loosing core are symmetrically installed with on two " C " shape slide rail base plate 35 and each slide rail base plate 35 slide rail 36 are all installed, pellet 32 is clamped between fixed block 34 and slide rail base plate 35, pellet 32 bottoms offer with slide rail 36 one to one chute and pellet 32 can be on two slide rails 36 horizontal sliding, two " C " shape slide rail base plate, 35 middle parts surround slide rail through hole 351 and Angle Pin 312 through slide rail through hole 351.
Fixed block 34 plays fixing and guide effect to pellet 32, can accurately guarantee that pellet 32 is along horizontal direction slippage in pellet 32 slippings, and can, towards vertical direction perk, not improve job stability.Slide rail base plate 35 and slide rail 36 provide track stably for the horizontal sliding of pellet 32.Angle Pin 312 is from top to bottom successively through against through hole 3111, pellet through hole 322, slide rail through hole 351, and slide rail through hole 351 provides accommodation space for Angle Pin 312, reasonable in design, guarantees job stability.
Further preferably, the breach 231 of loosing core is provided with stop block 39 near the bottom of 23 sidewall direction of plate in cover half, and pellet 32 can and finally be resisted against on stop block 39 towards stop block 39 direction horizontal slidings.When die sinking, stop block 39 plays buffering and spacing effect to pellet 32, alleviates the collision of pellet 32 to plate in cover half 23, reduces noise and reduces mould damage rate.
Shown in Fig. 8 and Figure 13, preferably, pellet 32 deviates from the end face of spigot surface 321 and offers symmetrically arranged two pellet spring grooves 324, in each pellet spring groove 324, be provided with secondary spring 37 and spring housing 38, spring housing 38 is set in outside secondary spring 37 and part stretches in pellet spring groove 324, and the two ends of secondary spring 37 are resisted against respectively on spring housing 38 madial walls, pellet spring groove 324 madial walls.When matched moulds, secondary spring 37 is in compressive state, one end of secondary spring 37 is resisted against pellet spring groove 324 bottoms, the other end is resisted against in spring housing 38, when die sinking, and the outside slippage of pellet 32, secondary spring 37 can play booster action to pellet 32, increase work efficiency, spring housing 38 can prevent that secondary spring 37 from coming off, reasonable in design and easy for installation.
Shown in Fig. 2 and Figure 14 to Figure 17, preferably, locking device 50 comprises shell 51, installing plate 52, slide block 53, back-moving spring 54, locking stripe board 55, installing plate 52 is arranged in cover half on plate 23 lateral walls, traction stripe board 40 upper ends are arranged on hot runner manifold 22 lateral walls, traction stripe board 40 lower ends are through shell 51, slide block 53 is arranged in shell 51 and shape is " C " shape, locking stripe board 55 lower ends are arranged in dynamic model on plate 24 lateral walls, locking stripe board 55 upper ends are successively through shell 51 and slide block 53, back-moving spring 54 is clamped in slide block 53 away between traction stripe board 40 one end and corresponding shell 51 madial walls, traction stripe board 40 lower ends extend to form and touch projection 41 to locking stripe board 55 directions, locking stripe board 55 upper end edges deviate from traction stripe board 40 directions and extend to form locking projections 551, in locking stripe board 55, offer lock hole 552, the dead bolt 56 coordinating with lock hole 552 is installed on slide block 53, when matched moulds, locking projections 551 is resisted against on slide block 53 upper surfaces and dead bolt 56 is inserted solid in lock hole 552, in cover half, plate 23 is fixedly connected with plate in dynamic model 24, when die sinking, on hot runner manifold 22, move and drive in traction stripe board 40 and move after certain distance, touching projection 41 promotes slide block 53 slippages and makes dead bolt 56 hole 552 that goes out of lock towards locking stripe board 55 directions, locking device 50 lost efficacy, now in cover half, plate 23 can depart from plate 24 in dynamic model.When mould returns to matched moulds state by die opening state, hot runner manifold 22 moves down and drives traction stripe board 40 to move down, touch projection 41 and leave slide block 53, under back-moving spring 54 effects, dead bolt 56 inserts in lock hole 552 again, and locking device 50 is in normal lock state, and now in cover half, plate 23 is fixedly connected with plate in dynamic model 24, such reasonable in design, mounts and dismounts all more convenient.
Further preferably, be provided with the clamping block 57 with latch installing hole 571 on slide block 53, slide block 53 is connected as a single entity with clamping block 57, and dead bolt 56 is inserted solid in latch installing hole 571, simple in structure and easy to process.
Further preferably, slide block 53 offers sliding block spring groove 531 away from traction stripe board 40 one end, back-moving spring 54 two ends are resisted against respectively sliding block spring groove 531 bottoms with on corresponding shell 51 madial walls, and such reasonable in design, can effectively prevent the landing of back-moving spring 54 in the course of work.
As shown in figure 16, further preferably, locking stripe board 55 lower end edges deviate from traction stripe board 40 directions and extend to form reinforcement projection 553.Strengthen projection and 553 can play the effect that is similar to reinforcement, make to draw stripe board 40 and install more firmly, improve job stability.
These three plate mechanical type core-pulling dies are under original state, inner core pulling mode adopts mechanical type to loose core, when matched moulds, locking device 50 is fixed together plate 24 in plate in cover half 23 and dynamic model, when die sinking, under extraneous parts effect, top clamping plate 21 moves on together with hot runner manifold 22, hot runner manifold 22 drives traction stripe board 40 and moves against assembly 31 1 is the same simultaneously, meanwhile drive the outside slippage of pellet 32 and make pellet 32 depart from the junction of loose core breach 231 and die casting die cavity against assembly 31, and now in cover half in plate 23 and dynamic model plate 24 be still fixed together, drive in traction stripe board 40 and move after certain distance at hot runner manifold 22, traction stripe board 40 lower ends are touched locking device 50 and make its inefficacy, now in cover half, plate 23 can depart from plate 24 in dynamic model, then under extraneous auxiliary spare part effect, in cover half, in plate 23 and dynamic model, plate 24 departs from.Such reasonable in design, core-pulling die good stability, in the time of die sinking, looses core and synchronizes and carry out with die sinking, without the die sinking again of first loosing core, reduces mould damage rate, and workpiece 10 can not produce offset and reduce 10 production cycles of workpiece.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1. a plate mechanical type core-pulling die, comprise the top clamping plate setting gradually from top to bottom, hot runner manifold, plate in cover half, plate in dynamic model, Bottom clamp plate, in described cover half, in plate and dynamic model, between plate, be formed with die casting die cavity, in cover half, plate faces on the end face of hot runner manifold and offers the breach of loosing core, in breach, be provided with on core-pulling device and the breach of loosing core and offer the through hole of loosing core communicating with die casting die cavity loosing core, it is characterized in that, described core-pulling device comprise pellet and be fastened on pellet against assembly, described pellet is arranged on looses core in breach, and pellet one end is passed and is loosed core through hole and be positioned at die casting die cavity, describedly be arranged on hot runner manifold against assembly, and in the time that hot runner manifold rises by pellet being pulled out in the through hole of loosing core against assembly, at hot runner manifold, at least two corresponding traction stripe board that arrange are installed outward, in cover half, plate is provided with outward with to draw stripe board corresponding and can make the locking device that in cover half, plate is fixedly connected with plate in dynamic model one by one, in the time that traction stripe board moves up, can touch locking device and make its inefficacy.
2. a kind of three plate mechanical type core-pulling dies according to claim 1, it is characterized in that, on described pellet, be provided with the spigot surface that is obliquely installed and faces hot runner manifold, describedly comprise leaning seat and Angle Pin against assembly, described Angle Pin one end is inserted solid on leaning seat, and the other end is through pellet middle part, and described leaning seat upper end is arranged on hot runner manifold, lower end is provided with the abutment face matching with spigot surface, and described leaning seat can be fastened on the spigot surface of pellet.
3. a kind of three plate mechanical type core-pulling dies according to claim 2, it is characterized in that, the described breach of loosing core have towards the main opening of hot runner manifold and in cover half the secondary opening of plate sidewall, described leaning seat faces on the end face of the secondary opening direction of the breach of loosing core and offers crashproof mounting groove, in described crashproof mounting groove, be provided with against wearing and tearing sheet, loosing core between breach madial wall and corresponding leaning seat end face against wearing and tearing sheet.
4. according to the one three plate mechanical type core-pulling dies described in claim 2 or 3, it is characterized in that, on the spigot surface of described pellet, offer wearing and tearing mounting groove, the elasticity wearing and tearing sheet be arrangeding in parallel with spigot surface is installed in described wearing and tearing mounting groove, described leaning seat can be fastened on elasticity wearing and tearing sheet.
5. according to the one three plate mechanical type core-pulling dies described in claim 2 or 3, it is characterized in that, described core-pulling device also comprises that symmetry is arranged on two fixed blocks of pellet both sides, the described breach bottom of loosing core is symmetrically installed with on two " C " shape slide rail base plate and each slide rail base plate slide rail is all installed, described pellet is clamped between fixed block and slide rail base plate, described pellet bottom offer with slide rail one to one chute and pellet can be on two slide rails horizontal sliding, described two " C " shape slide rail base plate middle part surrounds slide rail through hole and described Angle Pin through slide rail through hole.
6. according to the one three plate mechanical type core-pulling dies described in claim 2 or 3, it is characterized in that, described pellet deviates from the end face of spigot surface and offers symmetrically arranged two pellet spring grooves, in each pellet spring groove, be provided with secondary spring and spring housing, described spring housing is set in outside secondary spring and part stretches in pellet spring groove, and the two ends of described secondary spring are resisted against respectively on spring housing madial wall, pellet spring groove madial wall.
7. according to the one three plate mechanical type core-pulling dies described in claim 1 or 2 or 3, it is characterized in that, the described breach of loosing core is provided with stop block near the bottom of plate sidewall direction in cover half, and pellet can and finally be resisted against on stop block towards stop block direction horizontal sliding.
8. according to the one three plate mechanical type core-pulling dies described in claim 1 or 2 or 3, it is characterized in that, described locking device comprises shell, installing plate, slide block, back-moving spring, locking stripe board, described installing plate is arranged in cover half on plate lateral wall, described traction stripe board upper end is arranged on hot runner manifold lateral wall, traction stripe board lower end is through shell, described slide block setting in the enclosure and shape be " C " shape, described locking stripe board lower end is arranged in dynamic model on plate lateral wall, locking stripe board upper end is successively through shell and slide block, described back-moving spring is clamped in slide block away between traction stripe board one end and corresponding shell madial wall, described traction stripe board lower end extends to form and touches projection to locking stripe board direction, described locking stripe board upper end edge deviates from traction stripe board direction and extends to form locking projections, in described locking stripe board, offer lock hole, the dead bolt coordinating with lock hole is installed on described slide block, when matched moulds, locking projections is resisted against on upper end of slide block face and dead bolt is inserted solid in lock hole, in cover half, plate is fixedly connected with plate in dynamic model, when die sinking, on hot runner manifold, move and drive in traction stripe board and move after certain distance, touching projection promotes slide block slippage and makes the dead bolt hole that goes out of lock towards locking stripe board direction, locking device lost efficacy, now in cover half, plate can depart from plate in dynamic model.
9. a kind of three plate mechanical type core-pulling dies according to claim 8, is characterized in that, on described slide block, be provided with the clamping block with latch installing hole, described slide block and clamping block are connected as a single entity, and described dead bolt is inserted solid in latch installing hole.
10. a kind of three plate mechanical type core-pulling dies according to claim 9, is characterized in that, slide block offers sliding block spring groove away from traction stripe board one end, and described back-moving spring two ends are resisted against respectively sliding block spring trench bottom with on corresponding shell madial wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320843921.5U CN203622843U (en) | 2013-12-19 | 2013-12-19 | Three-plate mechanical core-pulling mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320843921.5U CN203622843U (en) | 2013-12-19 | 2013-12-19 | Three-plate mechanical core-pulling mold |
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| CN203622843U true CN203622843U (en) | 2014-06-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737859A (en) * | 2013-12-19 | 2014-04-23 | 宁波南方塑料模具有限公司 | Three-plate mechanical core-pulling mold |
| CN107283761A (en) * | 2015-05-01 | 2017-10-24 | 蒿虹 | A kind of unilateral four sliding block synchronous core pulling mechanisms and its application method |
| CN113941691A (en) * | 2021-12-21 | 2022-01-18 | 象山同家模具制造有限公司 | Automatic casting mould of loosing core |
-
2013
- 2013-12-19 CN CN201320843921.5U patent/CN203622843U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737859A (en) * | 2013-12-19 | 2014-04-23 | 宁波南方塑料模具有限公司 | Three-plate mechanical core-pulling mold |
| CN103737859B (en) * | 2013-12-19 | 2015-11-18 | 宁波南方塑料模具有限公司 | A kind of three plate mechanical type core-pulling dies |
| CN107283761A (en) * | 2015-05-01 | 2017-10-24 | 蒿虹 | A kind of unilateral four sliding block synchronous core pulling mechanisms and its application method |
| CN107283761B (en) * | 2015-05-01 | 2020-06-30 | 东莞市艾尔玛科技有限公司 | Single-side four-sliding-block synchronous core pulling mechanism and using method thereof |
| CN113941691A (en) * | 2021-12-21 | 2022-01-18 | 象山同家模具制造有限公司 | Automatic casting mould of loosing core |
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Granted publication date: 20140604 Effective date of abandoning: 20151118 |
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