CN104801690B - Die-casting die capable of secondarily laterally pulling core - Google Patents
Die-casting die capable of secondarily laterally pulling core Download PDFInfo
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- CN104801690B CN104801690B CN201510107602.1A CN201510107602A CN104801690B CN 104801690 B CN104801690 B CN 104801690B CN 201510107602 A CN201510107602 A CN 201510107602A CN 104801690 B CN104801690 B CN 104801690B
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Abstract
The invention discloses a die-casting die capable of secondarily laterally pulling a core. The die-casting die comprises an upper die and a lower die; a main mold core is arranged into a lateral core pulling hole in the upper die, comprising a rotating sleeve, a driving pulling core adapted into the rotating sleeve, and a mold core sleeve, wherein the mold core sleeve is in rotating connection to the small front end of the rotating sleeve; a secondary mould core is arranged at the front part of the mold core; a T-shaped clamping groove of which the depth is gradually increased in the circumferential direction is formed in the rotating sleeve; the lower end of the secondary mould core is clamped into the T-shaped clamping groove; the rear end of a driving pulling core is connected with a driving oil cylinder; a spiral groove is formed in the front part of the driving pulling core; a sliding pin which extends into the rear end of the spiral groove is arranged at the inner sidewall of the rotating sleeve; an arc-shaped groove of which the depth is gradually reduced in the circumferential direction is formed in the outer side surface of the rear end of the rotating sleeve; a spring bolt is arranged in the lateral core pulling hole; a spring bolt pressing spring is arranged at the rear end of the spring bolt. With the adoption of the die, a lateral forming hole and a radial blind hole in the inner wall of the lateral forming hole can be synchronously formed at a time, so that later secondary mechanical processing can be avoided, and the production efficiency can be increased.
Description
Technical field
The present invention relates to technical field of mold, more particularly, to a kind of pulled core structure of aluminum alloy die-casting die.
Background technology
Existing aluminum alloy die-casting die generally includes upper die and lower die, is arranged on entering system of pouring, being arranged on down on mould
Ejecting mechanism and cooling system on mould etc., for the common product with the opening towards side or cavity, be
It is easy to the ejection of product after molding, the cavity of indent is set generally on upper mould, the core of evagination is set on lower mould, when
When upper and lower mould is combined, the die cavity of shaped article is formed between the core of the cavity of upper mould and lower mould.When formed product and cold
But after shaping, upper and lower mould separates, and product rests on lower mould by the Bao Moli between core produced by its cooling meat
On, product is ejected along the longitudinal direction of mould finally by the ejecting mechanism on lower mould, so as to separate with the core of lower mould.Work as product
During with sidewise hole, then can pass through Angle Pin or the frame for movement of the class of hydraulic jack one carries out side core-pulling.But, it is existing
Aluminum alloy die-casting die there are problems that following two：There are radial blind holes simultaneously on sidewise hole inwall firstly, for some
For product, existing Angle Pin or the simple core-pulling mechanism of the class formation of hydraulic jack one will be unable to molding sidewise hole simultaneously and
Radial blind holes, people typically can only be completed by methods such as secondary operations, therefore it there is a problem of wasting time and energy；Secondly, exist
During design mould structure, typically by the opening or cavity of product towards lower mould side, or will be in the side of die joint two
Bao Moli larger side is arranged on lower mould side, to rest on lower mould side after formed product.However, for some are same
When the product with the opening towards upper and lower both sides or cavity or be to be located at the Bao Moli of the upper and lower both sides of die joint relatively
Product for, be difficult to ensure that and rest on lower mould the phenomenon that product wraps mould easily occur after formed product, once product bag
On upper mould, follow-up production will be had a strong impact on, and on product different piece bag mould force direction conversely, therefore easily causing
The flexural deformation of product.
The content of the invention
It is an object of the present invention to solve being difficult to existing for existing aluminum alloy die-casting die while molding is lateral
A kind of problem of the radial blind holes on forming hole and lateral forming hole inwall, there is provided compression mod for being capable of achieving secondary side core-pulling
Tool, the radial blind holes that it can disposably simultaneously on the lateral forming hole of molding and lateral forming hole inwall, so as to avoid follow-up two
Secondary machining, improve production efficiency.
Another object of the present invention is that in molding there are upper and lower both sides to open to solve existing aluminum alloy die-casting die
Easily there is product during the product of mouth and wrap mould and diastrophic problem, there is provided product whole when one kind can ensure that molding
Rest on the die casting of lower mould, so as to be prevented effectively from molding after product there is flexural deformation phenomenon.
To achieve these goals, the present invention is employed the following technical solutions：
It is a kind of can secondary side core-pulling die casting, including the upper mould having into system of pouring, with ejecting mechanism
Mould, has side core-pulling hole on upper mould, the main core being connected with a driving oil cylinder, the main core bag are provided with side core-pulling hole
Include turning set, fit in turning set driving draw core, for shaped article sidewise hole core set, the lateral surface of turning set
For pre-small post-large cascaded surface, core set is rotatably connected on the lateral surface of the less front end of turning set, the lateral surface of core set
Then axially movable connection is constituted with side core-pulling hole, the lateral surface of the larger rear end of turning set is fitted in side core-pulling hole,
The anterior forming ends periphery of core set is provided with the core pilot hole of radial direction, and the periphery of turning set is provided with along the circumferential direction
The T-shaped draw-in groove of extension, the depth of straight trough is linearly incremented by from one end of T-shaped draw-in groove to the other end in T-shaped draw-in groove, core pilot hole
One end shallower with straight trough depth in T-shaped draw-in groove is corresponding, and time core is slidably connected in core pilot hole, and secondary core stretches out type
The upper end of core pilot hole is the forming part of the radial blind holes for shaped article sidewise hole inwall, and T-shaped is stretched in the lower end of secondary core
In draw-in groove, and lateral pin of the screens in the translot of T-shaped draw-in groove is laterally provided with the lower end of secondary core, drive draw core rear end with
The piston rod for driving oil cylinder is connected, and the piston rod of driving oil cylinder is provided with the lock plate against turning set rear end face, drives and draws
Core front portion periphery is provided with helicla flute, and the medial wall of turning set is provided with the sliding pin stretched in helicla flute rear end, after turning set
The lateral surface at end is provided with circumferentially extending arcuate groove, the depth of arcuate groove from one end of arcuate groove to the other end progressively
Zero is decremented to, the side core-pulling hole medial wall of upper mould is provided with the accommodating blind hole of lock core, institute in the position of the deeper one end of correspondence arcuate groove
State in the accommodating blind hole of lock core and be provided with the lock core for stretching into arcuate groove, between the bottom surface of lock core and the accommodating blind hole of lock core lock core pressure is provided with
Spring.
The side core-drawing mechanism of the present invention is used and drives oil cylinder as power source, consequently facilitating the control of movement time and active force
System.During molding, main core is realized and the axially position between side core-pulling hole by the lock core stretched in arcuate groove, oily when driving
When cylinder starts action, piston rod pulls first driving to draw mandrel to draw back, by driving on the helicla flute and turning set that draw core
The effect of sliding pin, you can drive turning set to rotate, secondary core of the now screens in the T-shaped draw-in groove of turning set is progressively close to be turned
Dynamic set axle center, so that the forming part of secondary core front end is extracted out from the radial blind holes of product sidewise hole inwall, now sliding pin
Reach and spiral fluted front end, turning set stops operating and form axially position, correspondingly, turning set between core with driving to draw
On arcuate groove just to rotate depth be zero one end, so as to lock core is pushed completely in the accommodating blind hole of lock core, release main core with
Axially position between side core-pulling hole.When drive draw core continue retreat when, you can pull turning set together with core cover to
After move, so as to complete whole side core-pulling process.That is, the present invention drives oil cylinder to be capable of achieving product side by one
To the disposable core pulling of the radial blind holes in hole and sidewise hole, so as to significantly increase production efficiency.
Preferably, being provided with the elongated slot of the insertion left and right sides in upper mould, the bottom surface of elongated slot is provided with along the vertical of die casting
To the pilot hole for extending to upper cavity body, movably it is provided with crossbeam in elongated slot, crossbeam is provided with and is slidably connected with pilot hole
It is additionally provided with the crossbeam stage clip against crossbeam, upper mould away from lower mould side in reverse drawing bar, elongated slot and is also slidably provided with release link, it is multiple
Position bar one end is connected with crossbeam, and the other end extends longitudinally to die joint along die casting, distinguishes in the left and right sides of lower mould
Rotationally it is provided with the first drag hook and the position limiting structure that the first drag hook is rotated to side can be limited, the upper end of first drag hook
The hook part extended to side is provided with, the lower end of the first drag hook is provided with the first lobe extended to opposite side, and hook part is caught on and stretched out
The beam-end of upper mould, is additionally provided with the torsion spring for pinning the first drag hook in the rotary shaft of the first drag hook, upper mould has in the first drag hook
The side of the first lobe is installed with poke rod, and the bottom of poke rod is provided with the first promotion of projection near the first lobe side
Block, the two ends of the first pushing block are provided with guiding surface.
The present invention moveable crossbeam of horizontally set one in upper mould, while be provided with catching on crossbeam in the both sides of lower mould
First drag hook, during die cast, the reverse drawing rod end surface on crossbeam constitutes a part for upper cavity body.When formed product terminates
When upper and lower mould is separated from each other, crossbeam is subject to the effect of the drag hook of two ends first and lower mould to keep being relatively fixed, so that on crossbeam
Reverse drawing bar continues to push down the product upper surface after molding, and then offsets Bao Moli of the product in upper mould side, it is ensured that product reliability
Rest on lower mould side, and avoid product because different parts bag mould force direction it is inconsistent there is flexural deformation, now dial
First lobe of the first raised pushing block of lever lower end and the first drag hook lower end is separated.When upper and lower mould separates a spacing
From rear, Bao Moli of the product in upper mould side is substantially reduced, and the poke rod lower end being now fixed on mould is raised first to push away
Motion block contacts with the first lobe of the first drag hook lower end, and the first pushing block promotes the first lobe of the first drag hook, so as to
Rotate the first drag hook, so, the hook part of the first drag hook upper end departs from beam-end, and crossbeam and reverse drawing bar are rested on
It is separated on upper mould and with lower mould, consequently facilitating the ejecting mechanism of lower mould ejects product, crossbeam stage clip can then make reverse drawing bar, horizontal stroke
Beam rests on state when separating with the first drag hook.When upper and lower mould matched moulds again, the first pushing block of poke rod is promoted first
First lobe of the first drag hook rotates the first drag hook, and now the end of crossbeam can enter the hook part of the first drag hook；Then
First pushing block of poke rod separates with the first lobe of the first drag hook, and reversion in the presence of the torsion spring of the first drag hook resets,
So that crossbeam is caught in the hook part of the first drag hook upper end, and release link can then promote reset of the crossbeam in elongated slot, while resetting
Bar may also function as the effect of guide post, increase stability during cross beam movement.
Preferably, the first drag hook of lower mould both sides is respectively positioned at the both sides of crossbeam, the hook part of the first drag hook upper end has
The second hook inclined-plane of crossbeam can be caught on, second hooks inclined-plane inclines from the inside to the outside towards upper mould side, the two ends of the crossbeam
The first hook inclined-plane parallel with the second hook inclined-plane on the drag hook of phase the same side first is respectively equipped with, the second hook of hook part is oblique
Face is engaged so as to catch on beam-end with the first hook inclined-plane of beam-end.
Due to being contact of incline plane between first drag hook and crossbeam of both sides, therefore, can be with crossbeam when the first drag hook is rotated
Between sharp separation, it is to avoid produce frictional resistance between the first drag hook and crossbeam, be conducive to reduce promote the first drag hook rotate
Moment of torsion.Simultaneously as two the first drag hooks are conducive to the balance of beam force respectively positioned at the both sides of crossbeam.
Preferably, the reverse drawing bar includes that the canned paragraph of sleeve-shaped and one end are plugged on the extension inside canned paragraph inner chamber
Section, the upper end of canned paragraph is fixedly connected with crossbeam, and the lower end of canned paragraph is provided with necking, and extension is adapted with necking, extension
Upper end in canned paragraph is provided with the position-arresting disk being adapted to fixing end medial wall, and sealing is provided with the periphery of position-arresting disk
Circle, so that extension is formed with canned paragraph being slidably connected, in the side of upper mould telescopic oil cylinder is additionally provided with poke rod, is stretched
The piston rod end extended towards lower mould direction on contracting oil cylinder is provided with the first crotch, and the cylinder body of telescopic oil cylinder is near lower mould side
Hydraulic oil is filled with working cavity, the part that the piston rod of telescopic oil cylinder is located in working cavity is arranged with back-moving spring, work
Make cavity by pipeline and canned paragraph intracavity inter-connection, the cross-sectional area of the canned paragraph inner chamber and the working chamber of telescopic oil cylinder
The piston effective area of body side is equal, lower mould positioned between poke rod and piston rod place be provided with rotatable second drag hook,
And can limit the limited post that the second drag hook is rotated to side, the second drag hook is provided with that can to hook first curved in the upper end of the mould on
Second crotch of hook, leaves distance between the first crotch and the second crotch, it is oblique that the second crotch is provided with pushing in the mould side on
Face, is additionally provided with the torsion spring for pinning the second drag hook in the rotary shaft of the second drag hook, the lower end of the second drag hook sets near poke rod side
There is the second lobe, poke rod lower end is provided with the second pushing block of projection, the left and right sides of upper mould near the second lobe side
Locking electric magnet and the normally opened travel switch with the electrical connection of locking electric magnet are further respectively had, locking electric magnet is located at horizontal stroke
Away from the side of the first drag hook, the iron core of locking electric magnet is provided with the locking head of taper to beam near first drag hook one end, and stroke is opened
Off-position in the first drag hook away from crossbeam side, the first drag hook is provided with stroke briquetting near travel switch side, and beam-end is leaned on
Nearly locking electric magnet side is provided with the lock groove that can be adapted to locking head, is separated from each other when upper and lower mould to the first of poke rod and pushes away
Motion block promotes the first lobe of the first drag hook so that when hook part and the crossbeam of the first drag hook are disengaged, the stroke on the first drag hook
Briquetting triggers travel switch, and locking electric magnet is powered makes iron core action, locking head make crossbeam locking in the lock groove of crossbeam.
When form depth of the product in upper mould is deeper, it would be desirable to make product that longer distance ability is separated with upper mould
Guarantee that Bao Moli of the product on upper mould is reduced to zero, for this purpose, reverse drawing bar is arranged to stretching structure by the present invention, so as to be conducive to
Reduce the stroke of crossbeam, and then the thickness of mould can be reduced.Due to leaving distance between the first crotch and the second crotch, therefore,
When formed product terminates upper and lower mould to be separated from each other, the first drag hook works first, catches on crossbeam and pushes down product together with reverse drawing bar
Product, so that product rests on lower mould side.Then, poke rod makes the first drag hook break off relations, while touching travel switch, makes electromagnetism
Ferrum action locking crossbeam.At the same time, the second crotch of the second drag hook catches on the first crotch of telescopic oil cylinder piston rod end, makes
Piston drives the hydraulic oil in working cavity that the fixing end inner chamber of reverse drawing bar is entered into by pipeline, and then promotes prolonging for reverse drawing bar
Stretch section protruding to continue to push down product.Due to the cross-sectional area and the working cavity one of telescopic oil cylinder of canned paragraph inner chamber
The piston effective area of side is equal, therefore, it can be ensured that the extension elongation of extension is equal with the distance of separation of upper and lower mould, and then
Guarantee that product rests on exactly lower mould side.Pushing inclined-plane when upper and lower mould matched moulds, on second the second crotch of drag hook end
Contact with the first crotch of piston rod end, so that the second drag hook is rotated, cross first by the second crotch of its end curved
Hook, the then auto-reverse reset in the presence of torsion spring.
Therefore, the present invention has the advantages that：Can disposably while in the lateral forming hole of molding and lateral forming hole
Radial blind holes on wall, so as to avoid follow-up secondary mechanical from processing, improve production efficiency.Product is full when can ensure that molding simultaneously
Portion rests on the die casting of lower mould, so as to be prevented effectively from molding after product there is flexural deformation phenomenon.
Description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the structural representation of side core-drawing mechanism.
Fig. 3 is the enlarged drawing in Fig. 2 at A.
Fig. 4 is the sectional view in Fig. 3 at B-B
Fig. 5 is the lateral view of Fig. 1.
Fig. 6 is the structural representation of reverse drawing bar.
In figure：1st, upper mould 11, elongated slot 12, pilot hole 13, lead column 14, spring mounting groove 15, crossbeam stage clip 16,
Release link 2, lower mould 21, side core-pulling hole 22, die joint 3, crossbeam 31, first hook inclined-plane 32, lock groove 4, reverse drawing
Bar 41, canned paragraph 411, necking 42, extension 421, position-arresting disk 422, the 5, first drag hook 51 of capping, hook part 511, the
Two hook inclined-planes 52, the first lobe 53, stroke briquetting 54, spacer pin 6, poke rod 61, the first pushing block 611, push away
Dynamic face 612, guiding surface 62, the second pushing block 7, telescopic oil cylinder 71, piston rod 711, the first crotch 8, the second drag hook
81st, the second crotch 811, push inclined-plane 82, the second lobe 9, locking electric magnet 91, travel switch 92, locking head 10,
Core 204, core pilot hole 205, T-shaped draw-in groove are drawn in product 20, main core 201, core set 202, turning set 203, driving
206th, the accommodating blind hole 214 of secondary core 208, helicla flute 210, arcuate groove 211, sliding pin 213, lock core, lock core 215, lock
Core stage clip 30, driving oil cylinder 40, lock plate.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention will be further described with specific embodiment.
As shown in figure 1, it is a kind of can secondary side core-pulling die casting, its be applied to molding have sidewise hole and
There is the product of radial blind holes simultaneously in sidewise hole；While the product of the also plastic opening with towards upper and lower both sides or cavity
Product or be the Bao Moli products relatively for being located at the upper and lower both sides of die joint.Specifically include the upper mould having into system of pouring
1st, the lower mould 2 with ejecting mechanism, on upper mould have side core-pulling hole 21, molding sidewise hole is provided in side core-pulling hole with
And the main core 20 of radial blind holes, main core with one driving oil cylinder 30 be connected.For convenience of description, we are by upper and lower mould
Divide mould and matched moulds direction to be referred to as the longitudinal direction of die casting, correspondingly, with longitudinally perpendicular direction the horizontal of die casting is referred to as.Such as
Shown in Fig. 2, Fig. 3, main core includes that turning set 202, the driving fitted in turning set draw core 203, axially movably
The core set 201 being connected in side core-pulling hole, drives and draws core rear end to be connected with the piston rod for driving oil cylinder, outside turning set
Side for second order cascaded surface, its near drive oil cylinder rear end with diameter greater than away from drive oil cylinder point diameter so that
Turning set is in pre-small post-large convex shape.Core set is rotatably connected on the lateral surface of the less front end of turning set, core set
Lateral surface then constitutes axially movable connection with side core-pulling hole, and the lateral surface of the larger rear end of turning set fits in side core-pulling
In hole.We can cover in core and axial chute is arranged on the periphery that rear portion coordinates section with side core-pulling hole, and side core-pulling
Sliding shoe of the screens in chute is then set in hole, you can conveniently realize the axially movable company of core set and side core-pulling hole
Connect, and the rotation of core set can be avoided.Additionally, we can arrange annular groove on the periphery of the less front end of turning set,
Then the position of correspondence annular groove arranges gag lever post of the screens in annular groove on core set, you can make turning set and type
Realize rotating connection between core retainer plate, it is to avoid occur axial relative displacement between the two.
The core pilot hole 204 of radial direction, the periphery of turning set front end are set on the anterior forming ends periphery of core set
Upper to arrange circumferentially extending T-shaped draw-in groove 205, the depth of straight trough is in the other end from one end of T-shaped draw-in groove in T-shaped draw-in groove
Linear increment, core pilot hole one end shallower with straight trough depth in T-shaped draw-in groove is corresponding, slidably connects in core pilot hole
Secondary core 206, secondary core stretches out the molding that the upper end of core pilot hole is the radial blind holes for shaped article sidewise hole inwall
Portion, the lower end of secondary core is stretched in T-shaped draw-in groove, and laterally arranges translot of the screens in T-shaped draw-in groove in the lower end of secondary core
Interior lateral pin, so that the lower end of secondary core can move in T-shaped draw-in groove.Turning set is positioned against on the piston rod for driving oil cylinder
The lock plate 40 of rear end face, so as to the retrogressing of core set during molding can be avoided.Drive and spiral is set on the periphery for drawing core anterior
Groove 208, the medial wall of turning set arranges the sliding pin 211 stretched in helicla flute rear end.Additionally, as shown in Figure 3, Figure 4, Wo Menxu
Circumferentially extending arcuate groove 210 is set on the lateral surface of turning set rear end, and the depth of arcuate groove is from arcuate groove
One end to the other end is progressively decremented to zero, so as to the smooth connection of the lateral surface of turning set rear end, in the side core-pulling hole of upper mould
Side wall arranges the accommodating blind hole 213 of lock core in the position of the deeper one end of correspondence arcuate groove, is provided with the accommodating blind hole of the lock core and stretches into arc
The lock core 214 of shape groove, between the bottom surface of lock core and the accommodating blind hole of lock core lock core stage clip 215 is arranged.
The side core-drawing mechanism of the present invention is used and drives oil cylinder as power source, consequently facilitating the control of movement time and active force
System.After formed product, oil cylinder is driven to start core pulling, lock core now is stretched in the deeper one end of arcuate groove and against arcuate groove
Bottom surface so that turning set, core set and side core-pulling hole between form axially position.Piston rod pulls first driving to draw core
Axially retreat, by the effect for driving the sliding pin on the helicla flute and turning set that draw core, you can drive turning set to rotate, rotate
The arcuate groove for putting is rotated simultaneously, and the secondary core of now screens shallower one end of straight trough depth in the T-shaped draw-in groove of turning set is progressively
Move to deeper one end of straight trough depth in T-shaped draw-in groove so that secondary core is progressively near turning set axle center, and lock plate then with
Turning set rear end face separate, correspondingly, arcuate groove against lock core position then progressively by the deeper one end of arcuate groove move to compared with
Shallow one end, so, the forming part of secondary core outer end can be extracted out from the radial blind holes of product sidewise hole inwall.Work as sliding pin
When on arrival helicla flute away from the front end for driving oil cylinder, turning set stops operating, and it is zero that now lock core then reaches arc groove depth
One end, so as to release turning set, core set and side core-pulling hole between axially position.When driving drawing core to continue to retreat,
Turning set can be pulled to move after covering together with core, so that core set is extracted out completely from the sidewise hole of product, to complete
Whole side core-pulling process.After upper and lower mould matched moulds, driving oil cylinder to start action makes main core reset, and piston rod stretches out promotion
Drive and draw core reach, if the axial movement frictional resistance now between core set, turning set and side core-pulling hole is larger, and turn
Pivoting friction resistance between dynamic set and core set and side core-pulling hole is less, then drive and draw core first by helicla flute and turn
The effect of the dynamic sliding pin for putting, drives turning set to rotate and resets, and sliding pin then moves to spiral fluted rear end, so that turning
Dynamic set is positioned in the axial direction with drawing core is driven, correspondingly, secondary core then move to shallower one end of straight trough depth in T-shaped draw-in groove and
Reset.Draw core to continue to move forward and drive turning set and core set to move forward when resetting completely when driving, lock core can be in lock core stage clip
In the presence of enter in the deeper one end of arcuate groove on turning set, lock plate is then contacted so that rotating with turning set rear end face
Set covers locking complete in the axial direction with core., whereas if the now axial direction shifting between core set, turning set and side core-pulling hole
Kinetic frictional resistances are less, and the pivoting friction resistance between turning set and core set and side core-pulling hole is larger, then drive and draw
Core drives first turning set to reset in the axial direction with core set reach, and lock core is then located at that arc groove depth on turning set is zero
End.When driving drawing core to continue to move forward, you can by the effect of the sliding pin on helicla flute and turning set, turning set is driven to rotate
Reset, now sliding pin moves to spiral fluted rear end, and lock core is then located at deeper one end of arc groove depth on turning set, lock
Only disk recovers the axial lock fastening position to turning set, core set against turning set rear end face.That is, the present invention passes through one
The disposable core pulling of the i.e. achievable product sidewise hole of oil cylinder and the radial blind holes in sidewise hole is driven, so as to significantly increase life
Produce efficiency.It should be noted that the central angle corresponding to arcuate groove should be equal with the central angle corresponding to helicla flute.
Additionally, as shown in Figure 1, shown in Figure 5, we can arrange the elongated slot of the lateral arrangement of an insertion left and right sides in upper mould
11, the cross section of elongated slot is rectangular, and extending longitudinally to along die casting is arranged on the bottom surface of lower mould side on elongated slot
The pilot hole 12 of upper cavity body.Arranging in elongated slot along the crossbeam 3 for vertically moving of die casting, and can make the two ends point of crossbeam
Do not stretch out the left and right side of mould.The reverse drawing bar 4 being slidably connected with pilot hole is set on crossbeam, and reverse drawing bar extends to upper cavity
Body, makes reverse drawing rod end surface constitute a part for upper cavity body, certainly, it would be desirable to make reverse drawing rod end surface and upper cavity body phase
Match somebody with somebody.Setting spring mounting groove 14 is also needed away from lower mould side in elongated slot, and crossbeam stage clip 15, crossbeam are set in spring mounting groove
Against the bottom surface of spring mounting groove, the other end is against crossbeam for stage clip one end so that crossbeam can automatically be determined when upper and lower mould separates
Position is in elongated slot near lower mould side.We can also be fixedly installed lead column 13, the other end of lead column in spring mounting groove
Bottom surface of the elongated slot near lower mould side is plugged on after extension, lead column is constituted with crossbeam and is slidably connected, and crossbeam stage clip is set in leads
To on post.So, the distortion of crossbeam stage clip on the one hand can be avoided, crossbeam on the other hand can be made to move longitudinally in elongated slot.Separately
Outward, we need to also slidably arrange respectively release link 16, release link one end and crossbeam phase in upper mould near left and right sides position
Connection, the other end is so, multiple when upper and lower mould matched moulds then along the die joint 22 for extending longitudinally to upper and lower mould of die casting
Position bar contacts with the die joint of lower mould, you can promotes crossbeam to be moved in elongated slot and resets away from lower mould side.Further
Ground, in the left and right sides of lower mould respectively rotatably arranged with substantially by first drag hook 5, Yi Jike being longitudinally arranged of die casting
The position limiting structure that the first drag hook is rotated to side is limited, the upper end of the first drag hook is arranged to the bending of crossbeam side near crossbeam side
The hook part 51 of extension, the lower end of the first drag hook arranges the first lobe 52 extended to opposite side, so that the first drag hook is in Z-shaped
The end at the crossbeam two ends for stretching out mould elongated slot is caught on respectively in shape, the hook part of two the first drag hooks, in the rotary shaft of the first drag hook
The torsion spring for pinning the first drag hook is additionally provided with, it is so as to the first drag hook can be driven to rotate in one direction and spacing by position limiting structure.
Specifically, position limiting structure can be provided in the spacer pin 54 of the first drag hook side on lower mould.To control the action of the first drag hook,
We also need to the side of the first lobe on upper mould near the first drag hook and are fixedly installed one substantially by die casting
The poke rod 6 being longitudinally arranged, the bottom of poke rod arranges the first raised pushing block 61 near the first lobe side, and first pushes away
Motion block includes the guiding surface 612 at the middle parallel longitudinal promotion face 611 with die casting and promotion face two ends, so that
First pushing block is trapezoidal.
During die cast, the reverse drawing rod end surface on crossbeam constitutes a part for upper cavity body, certainly, it would be desirable to make anti-
Pull bar end face is made and is matched with upper cavity body phase.When formed product terminates upper and lower mould to be separated from each other, crossbeam is drawn by two ends first
Hook catches on, so as to keep being relatively fixed with lower mould, that is to say, that the reverse drawing bar on crossbeam continues to push down the product upper table after molding
Face, now, the first lobe of the first raised pushing block of poke rod lower end and the first drag hook lower end is in released state.When
After upper and lower mould is separated by a distance, Bao Moli of the product in upper mould side is reduced to close zero, that is to say, that product can be complete
Full cut-off stays in lower mould side, now near the guiding surface and first of upper mould one end on the first raised pushing block of poke rod lower end
First lobe of drag hook lower end contacts, and so as to promote the first lobe of the first drag hook to a side shifting, and then makes first
Drag hook overcomes the elastic force of torsion spring to rotate, and so, the hook part of the first drag hook upper end departs from beam-end, crossbeam and reverse drawing bar
Rest on and be separated on mould and with lower mould, crossbeam now is positioned in elongated slot near lower mould in the presence of crossbeam stage clip
Side, and release link then passes the die joint of mould.When upper and lower mould separately in place when, the ejecting mechanism of lower mould can be by product
Ejection, and the first drag hook is then auto-reverse in the presence of torsion spring, and it is spacing by position limiting structure.When upper and lower mould matched moulds again
When, the guiding surface on the first pushing block of poke rod away from upper mould one end connects first with the first lobe of the first drag hook
Touch, so as to promote the first lobe of the first drag hook to a side shifting, and then make the first drag hook overcome the elastic force of torsion spring to rotate；Connect
The promotion face for the first pushing block contacts with the first drag hook, and the first drag hook keeps rotary state, and so, the first drag hook upper end hooks
Portion can cross crossbeam from the side of crossbeam；Then near the guiding surface and the first drag hook phase of upper mould one end on the first pushing block
Contact, progressively reversion resets so as to catch on crossbeam the first drag hook in the presence of torsion spring, this at present mould die joint just with it is multiple
The end contact of mould is stretched out on the bar of position；When upper and lower mould continue near to matched moulds in place when, the first pushing block of poke rod and the
First lobe of one drag hook is separated a distance, and crossbeam is then moved to away from lower mould in the presence of release link in elongated slot
The original state of side, in order to point mould next time.
Additionally, the first drag hook of lower mould both sides can be separately positioned on the both sides of crossbeam, the hook of the first drag hook upper end for we
Portion arranges the second hook inclined-plane 511 that can catch on crossbeam, and second hooks inclined-plane inclines from the inside to the outside towards upper mould side, accordingly
Ground, the two ends of crossbeam are respectively provided with the first hook inclined-plane 31 parallel with the second hook inclined-plane on the drag hook of phase the same side first,
Second hook inclined-plane of hook part is engaged so as to catch on beam-end with the first hook inclined-plane of beam-end.So so that the
Contact of incline plane is realized between the hook part of one drag hook and crossbeam, therefore, when the first drag hook is rotated can between crossbeam sharp separation,
So as to be conducive to accurately controlling the hook time of crossbeam and rhythm, and be conducive to reducing the moment of torsion for promoting the first drag hook to rotate.
The product deeper for some form depths in upper mould, crossbeam and reverse drawing bar are needed and upper mould between when dividing mould
Form larger shift motion and just can ensure that product rests on lower mould side, so, the long groove depth of upper mould needs correspondingly to increase
Plus, so as to need to increase the thickness of upper mould.For this purpose, reverse drawing bar can be made Telescopic rod structure by us, specifically, as shown in fig. 6,
The canned paragraph 41 of reverse drawing bar including sleeve-shaped and one end are plugged on the extension 42 inside canned paragraph inner chamber, the upper end of canned paragraph with
Crossbeam is fixedly connected, and the lower end of canned paragraph has necking 411, and extension is adapted with necking, and extension is located in canned paragraph
Upper end then arranges the position-arresting disk 421 being adapted to fixing end medial wall, so that extension is formed with fixing end being slidably connected.Need
Illustrate, we can arrange a capping 422 for covering canned paragraph lower end in the lower end of extension, to avoid extension in axle
Upwards inside indentation canned paragraph inner chamber.Additionally, as shown in figure 5, also needing to be fixedly installed one at poke rod in the side of upper mould
Individual telescopic oil cylinder 7, the is bent to form on telescopic oil cylinder towards the end of piston rod 71 that lower mould direction extends towards poke rod side
One crotch 711, the cylinder body of telescopic oil cylinder is filled with hydraulic oil, the piston rod of telescopic oil cylinder in the working cavity of lower mould side
Part in working cavity is arranged a back-moving spring, and working cavity passes through pipeline and canned paragraph intracavity inter-connection, and
The cross-sectional area of canned paragraph inner chamber is equal with the piston effective area of the working cavity side of telescopic oil cylinder.Such telescopic oil cylinder
Piston rod can with extension formed link, when piston rod is pushed reduces working cavity, hydraulic oil by pipeline enter
Canned paragraph inner chamber, so as to promote extension segment sync protruding；Conversely, exercise working cavity on piston rod when back-moving spring is promoted
When becoming big, working cavity forms vacuum effect, and the hydraulic oil of canned paragraph inner chamber is back in working cavity by pipeline, by means of
The vacuum effect of canned paragraph inner chamber, you can make extension segment sync inwardly bounce back reset.Certainly, it would be desirable in the circumference of position-arresting disk
Corresponding sealing ring is set on face, in order to avoid the leakage of hydraulic oil.
In order to control the action of telescopic oil cylinder piston rod, we can be located at place between poke rod and piston rod on lower mould and set
Rotatable second drag hook 8 is put, the second drag hook is bent to form in the upper end of the mould on towards the piston rod side of telescopic oil cylinder
The second crotch 81 of the first crotch can be hooked, pushing inclined-plane 811, the first crotch are provided with away from the first crotch side on the second crotch
And second leave distance between crotch, that is to say, that only after upper and lower mould is separated by a distance, the just meeting of first, second drag hook
Mutually hook.Additionally, need to arrange the torsion spring for pinning the second drag hook in the rotary shaft of the second drag hook, and in the second drag hook of lower mould
Side arranges one and can limit the spacer pin that the second drag hook is rotated to side.The lower end of the second drag hook is arranged near poke rod side
Second lobe 82, and poke rod lower end then arranges the second pushing block 62 of projection near the second lobe side, second promotes
Block includes the middle parallel longitudinal promotion face with die casting and promotes the guiding surface at face two ends, so that second promotes
Block is trapezoidal.
In addition, the left and right sides of upper mould also needs to be respectively provided with can pass through the automatically reset locking electric magnet 9, Yi Jihe of stage clip
The normally opened travel switch 91 of locking electric magnet electrical connection, locking electric magnet is located at side of the crossbeam away from the first drag hook, locking
The iron core of electric magnet arranges the locking head 92 of taper near first drag hook one end, and beam-end is arranged near locking electric magnet side
The lock groove 32 that can be adapted to locking head.Travel switch is arranged in side of first drag hook away from crossbeam, and the first drag hook is leaned on
Nearly travel switch side arranges stroke briquetting 53.Being separated from each other when upper and lower mould to the first pushing block of poke rod promotes first to draw
First lobe of hook is so that when the hook part of the first drag hook disengages with crossbeam, the stroke briquetting triggering stroke on the first drag hook is opened
Close, locking electric magnet is powered makes iron core action, locking head make crossbeam locking in the lock groove of crossbeam.
When formed product terminates upper and lower mould to be separated from each other, the first drag hook works first, catches on crossbeam together with reverse drawing bar
Product is pushed down, so that product rests on lower mould side.Then, the first of the first pushing block first drag hook of pushing of poke rod is convex
Rise portion make the first drag hook rotate and with crossbeam break off relations, the stroke briquetting on the first drag hook then near travel switch, so as to touch row
Cheng Kaiguan makes the iron core action of locking electric magnet, locking head enter in the lock groove of crossbeam with locking crossbeam.At the same time, second
Second crotch of drag hook catches on the first crotch of telescopic oil cylinder piston rod end.When upper and lower mould continues to separate, the second drag hook is hooked
Firmly telescopic oil cylinder piston rod movement makes piston drive the hydraulic oil in working cavity that the fixing end of reverse drawing bar is entered into by pipeline
Inner chamber, and then promote the extension of reverse drawing bar protruding to continue to push down product.Due to the cross section face of canned paragraph inner chamber
Product is equal with the piston effective area of the working cavity side of telescopic oil cylinder, therefore, it can be ensured that the extension elongation of extension and work
The extension elongation of stopper rod is equal, and then guarantees that product rests on exactly lower mould side.And crossbeam is due to being locked out electric magnet lock
Only, thus crossbeam occurs retreating phenomenon when telescopic oil cylinder can be avoided to work.Then the second pushing block on poke rod pushes the
Second lobe of two drag hooks, so that the second drag hook is rotated break off relations up to upper and lower mould point mould in place with piston rod, and reset bullet
Spring is then promoted and exercise on piston rod working cavity to become big, the reset so that the extension segment sync of reverse drawing bar inwardly bounces back.Now
Stroke briquetting is separated with travel switch, locking electric magnet power-off restoration, and crossbeam is then positioned at close in elongated slot by crossbeam stage clip
Lower mould side.
When upper and lower mould matched moulds again, the second pushing block of poke rod is first contacted with the second lobe of the second drag hook, from
And the second drag hook is rotated, due to the piston rod automatic up reset in the presence of back-moving spring, therefore the second drag hook end
Second crotch in portion is now still located on outside the first crotch of piston rod end.Then, on second the second crotch of drag hook end
Push inclined-plane to contact with the first crotch of piston rod end, so that the second drag hook is rotated, the second crotch of its end can be more
The first crotch is crossed, it is then auto-reverse in the presence of torsion spring to reset and enter in the first crotch；On poke rod first pushes away
Motion block promotes the first lobe of the first drag hook to a side shifting, and then makes the first drag hook overcome the elastic force of torsion spring to rotate, then
The promotion face of the first pushing block contacts with the first drag hook, and the first drag hook keeps rotary state, so, the first drag hook upper end hook part
Crossbeam can be crossed from the side of crossbeam；Then the guiding surface on the first pushing block near upper mould one end connects with the first drag hook
Touch, the first drag hook in the presence of torsion spring progressively reversion reset so as to catch on crossbeam, this at present mould die joint just with reset
The end contact of mould is stretched out on bar；When upper and lower mould continue near to matched moulds in place when, the first pushing block of poke rod and first
First lobe of drag hook is separated a distance, and crossbeam is then moved to away from lower mould one in the presence of release link in elongated slot
The original state of side, in order to molding next time after point mould.
Claims (4)
1. it is a kind of can secondary side core-pulling die casting, including the upper mould having into system of pouring, the lower mould with ejecting mechanism,
There is side core-pulling hole on upper mould, the main core being connected with a driving oil cylinder is provided with side core-pulling hole, it is characterized in that, the master
Core include turning set, fit in turning set driving draw core, for shaped article sidewise hole core set, turning set
Lateral surface is pre-small post-large cascaded surface, and core set is rotatably connected on the lateral surface of the less front end of turning set, core set
Lateral surface then constitutes axially movable connection with side core-pulling hole, and the lateral surface of the larger rear end of turning set fits in side core-pulling
In hole, the anterior forming ends periphery of core set is provided with the core pilot hole of radial direction, and the periphery of turning set is provided with along circle
The T-shaped draw-in groove that circumferential direction extends, the depth of straight trough is linearly incremented by from one end of T-shaped draw-in groove to the other end in T-shaped draw-in groove, core
Pilot hole one end shallower with straight trough depth in T-shaped draw-in groove is corresponding, and time core, secondary core are slidably connected in core pilot hole
The upper end for stretching out core pilot hole is the forming part of the radial blind holes for shaped article sidewise hole inwall, and the lower end of secondary core is stretched
Enter in T-shaped draw-in groove, and lateral pin of the screens in the translot of T-shaped draw-in groove is laterally provided with the lower end of secondary core, drive and draw core
Rear end is connected with the piston rod for driving oil cylinder, and the piston rod of driving oil cylinder is provided with the lock plate against turning set rear end face,
Drive and draw core front portion periphery to be provided with helicla flute, the medial wall of turning set is provided with the sliding pin stretched in helicla flute rear end, turns
The lateral surface of dynamic set rear end is provided with circumferentially extending arcuate groove, and the depth of arcuate groove is from one end of arcuate groove to another
End is progressively decremented to zero, the side core-pulling hole medial wall of upper mould the position of the deeper one end of correspondence arcuate groove be provided with lock core house it is blind
Hole, in the accommodating blind hole of the lock core lock core for stretching into arcuate groove is provided with, and is provided between the bottom surface of lock core and the accommodating blind hole of lock core
Lock core stage clip.
2. it is according to claim 1 it is a kind of can secondary side core-pulling die casting, it is characterized in that, be provided with upper mould and pass through
The elongated slot of the logical left and right sides, the bottom surface of elongated slot is provided with the pilot hole for extending longitudinally to upper cavity body along die casting, in elongated slot
Crossbeam is movably provided with, crossbeam is provided with the reverse drawing bar being slidably connected with pilot hole, elongated slot and is additionally provided with away from lower mould side
Against the crossbeam stage clip of crossbeam, release link is also slidably provided with upper mould, release link one end is connected with crossbeam, the other end is along pressure
Casting mould extends longitudinally to die joint, is rotationally provided with the first drag hook respectively in the left and right sides of lower mould and can limit
The position limiting structure that one drag hook is rotated to side, the upper end of first drag hook is provided with the hook part extended to side, the first drag hook
Lower end is provided with the first lobe extended to opposite side, and the beam-end for stretching out mould, the rotary shaft of the first drag hook are caught in hook part
On be additionally provided with the torsion spring for pinning the first drag hook, upper mould is installed with poke rod in the side that the first drag hook has the first lobe, dials
The bottom of lever is provided with the first pushing block of projection near the first lobe side, and the two ends of the first pushing block are provided with guiding tiltedly
Face.
3. it is according to claim 2 it is a kind of can secondary side core-pulling die casting, it is characterized in that, the first of lower mould both sides
Respectively positioned at the both sides of crossbeam, the hook part of the first drag hook upper end has the second hook inclined-plane that can catch on crossbeam, second hook to drag hook
Hang inclined-plane to incline towards upper mould side from the inside to the outside, the crossbeam is respectively arranged at two ends with and the on the drag hook of phase the same side first
Two hook the first parallel hook inclined-plane of inclined-plane, and the second hook inclined-plane of hook part is engaged with the first hook inclined-plane of beam-end
So as to catch on beam-end.
4. according to Claims 2 or 3 it is a kind of can secondary side core-pulling die casting, it is characterized in that, the reverse drawing bar
Canned paragraph and one end including sleeve-shaped is plugged on the extension inside canned paragraph inner chamber, and the upper end of canned paragraph is fixed with crossbeam and connected
Connect, the lower end of canned paragraph is provided with necking, and extension is adapted with necking, the upper end that extension is located in canned paragraph is provided with and fixation
The position-arresting disk of end medial wall adaptation, on the periphery of position-arresting disk sealing ring is provided with, so that extension forms cunning with canned paragraph
Dynamic connection, in the side of upper mould telescopic oil cylinder is additionally provided with poke rod, the work extended towards lower mould direction on telescopic oil cylinder
Stopper rod end is provided with the first crotch, and the cylinder body of telescopic oil cylinder is filled with hydraulic oil in the working cavity of lower mould side, stretches
The part that the piston rod of oil cylinder is located in working cavity is arranged with back-moving spring, and working cavity is by pipeline and canned paragraph inner chamber phase
Connection, the cross-sectional area of the canned paragraph inner chamber is equal with the piston effective area of the working cavity side of telescopic oil cylinder, under
Mould is being provided with rotatable second drag hook and can limit the second drag hook to side rotation positioned at place between poke rod and piston rod
Limited post, the second drag hook is provided with the second crotch that can hook the first crotch, the first crotch and second in the upper end of the mould on
Distance is left between crotch, the second crotch is provided with pushing inclined-plane, is additionally provided with the rotary shaft of the second drag hook in the mould side on
The torsion spring of the second drag hook is pinned, the lower end of the second drag hook is provided with the second lobe near poke rod side, and poke rod lower end is close
Second lobe side is provided with the second pushing block of projection, and the left and right sides of upper mould further respectively has locking electric magnet, Yi Jihe
The normally opened travel switch of locking electric magnet electrical connection, locking electric magnet is located at side of the crossbeam away from the first drag hook, locking electricity
The iron core of Magnet is provided with the locking head of taper near first drag hook one end, and travel switch is located at the first drag hook away from the one of crossbeam
Side, the first drag hook is provided with stroke briquetting near travel switch side, and beam-end is provided near locking electric magnet side can be with lock
Only the lock groove of head adaptation, is separated from each other to the first pushing block of poke rod when upper and lower mould and promotes the first raised of the first drag hook
Portion is so that when the hook part of the first drag hook disengages with crossbeam, the stroke briquetting on the first drag hook triggers travel switch, locking electromagnetism
Tie Tong electricity makes iron core action, locking head make crossbeam locking in the lock groove of crossbeam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107602.1A CN104801690B (en) | 2015-03-12 | 2015-03-12 | Die-casting die capable of secondarily laterally pulling core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107602.1A CN104801690B (en) | 2015-03-12 | 2015-03-12 | Die-casting die capable of secondarily laterally pulling core |
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| CN104801690B true CN104801690B (en) | 2017-04-12 |
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| CN106825484B (en) * | 2016-12-28 | 2018-10-16 | 宁波臻至机械模具有限公司 | It is a kind of to vacuumize lateral pressing structure of shoe for manufacture water cooling clutch housing |
| CN108392877B (en) * | 2017-02-08 | 2023-06-20 | 珠海格力电器股份有限公司 | Filter element mounting structure and purifier |
| CN107471555B (en) * | 2017-07-11 | 2019-07-26 | 重庆工商大学 | A kind of rapidly and efficiently molding machine and method of the lateral hole cylinder set based article of band |
| CN108903316A (en) * | 2018-08-13 | 2018-11-30 | 常傲寒 | A kind of desktop adjustable desk |
| CN113357251A (en) * | 2021-05-31 | 2021-09-07 | 海盐南方标准件有限公司 | Anti-loosening screw assembly |
| CN113523229B (en) * | 2021-07-13 | 2023-09-15 | 东风(十堰)有色铸件有限公司 | Die casting die structure of secondary drawing insertion core by adopting oil cylinder and limiting pin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4096066B1 (en) * | 2007-11-27 | 2008-06-04 | 株式会社テクノクラーツ | Undercut processing mechanism |
| CN202156009U (en) * | 2011-04-29 | 2012-03-07 | 富港电子（东莞）有限公司 | Secondary core side-drawing mechanism |
| CN102248641B (en) * | 2011-06-22 | 2013-07-10 | 宁波双林模具有限公司 | Coring device in sliding block of injection mould |
| CN102380932B (en) * | 2011-10-14 | 2013-07-10 | 台州市黄岩西诺模具有限公司 | Double-interior pulling mechanism of injection mold |
| CN103358494B (en) * | 2013-07-12 | 2015-07-22 | 宁波双林模具有限公司 | Secondary core-pulling and ejection demoulding device by asynchronous inclined downward ejection |
| CN203496234U (en) * | 2013-08-16 | 2014-03-26 | 慈溪市精诚模具有限公司 | Inside core-pulling type combined sliding block |
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