CN103769557A - Aluminum alloy die-casting die - Google Patents
Aluminum alloy die-casting die Download PDFInfo
- Publication number
- CN103769557A CN103769557A CN201410005609.8A CN201410005609A CN103769557A CN 103769557 A CN103769557 A CN 103769557A CN 201410005609 A CN201410005609 A CN 201410005609A CN 103769557 A CN103769557 A CN 103769557A
- Authority
- CN
- China
- Prior art keywords
- core
- section
- cooling
- counterdie
- aluminum alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses an aluminum alloy die-casting die which comprises an upper die body, a lower die body, a guide locating structure arranged between the upper die body and the lower die body, and a cooling channel arranged on the upper die body and the lower die body and connected with a constant-temperature cooling device. The lower die body comprises a lower die plate used for fixing a protruding module, a fixed bottom plate arranged at the bottom of the lower die body, the protruding module is provided with a mold core fixing hole penetrating through the bottom face of the fixed bottom plate, a countersink with threads is formed in the mold core fixing hole located at the opening end of the bottom face of the fixed bottom plate, a mold core for forming is arranged in the mold core fixing hole, a limit protruding ring in the countersink is arranged at the root portion of the mold core, and the countersink is connected with a plug which is in butt joint with the bottom face of the limit protruding ring through inner threads. The mold core can be conveniently replaced, the die can not be damaged, ejection load can be lowered, and the service life of the mold core is prolonged. Meanwhile, embedded pieces with small size can be effectively cooled, and production efficiency and product quality of the die are obviously improved.
Description
Technical field
The present invention relates to technical field of mold, especially relate to a kind of aluminum alloy die-casting die.
Background technology
Existing aluminum alloy die-casting die generally includes the patrix with die cavity and the counterdie with convex module, when work, upper die and lower die are combined mutually, gap between die cavity and convex module forms the cavity of moulding, liquid aluminium alloy is entered into after cooling in cavity and is become desired die casting by running gate system, finally by the ejecting mechanism of being located at counterdie, die casting is ejected, complete one-shot forming process.The product that has a lot of through holes for some normally arranges corresponding core on the convex module of counterdie, the upper surface of core and the laminating of the cavity surface of patrix when moulding, thus on workpiece, form corresponding through hole.Because the diameter of core is generally thinner, when moulding, the liquid aluminium alloy of HTHP can form larger impact to core, therefore very easily because stressed bending is even ruptured, now needs to change core to maintain normal production.Because core in prior art is normally fixed on the core fixing hole on convex module, and extract from convex module for fear of core, need to defining flange be set at the root of core, correspondingly, in the core fixing hole bottom of convex module, counterbore is set.Although easy to process, fixing reliable advantage that said structure has, but breaking down need to change time, need to first remove fixed base plate and the ejecting mechanism of counterdie, then from the lower bolster of counterdie, split out convex module, finally could take out core from convex module and be changed, then again convex module etc. be ressembled back.Not only workload is large, and impact is normally produced, and is repeatedly keeping in repair after dismounting, can increase the fit clearance between convex module and lower bolster, and mould is damaged, thereby makes the product after moulding occur " overlap ".For example, a kind of disclosed in Chinese patent literature " die-casting die of lockset panel ", publication No. is CN102527990A, comprise framed, the framed groove that is provided with, is provided with cultivation plate in framed groove, plant in plate and be provided with core through hole is installed, plant plate and be provided with stripper plate outward, in stripper plate, be also provided with the through hole corresponding with planting plate, and stripper plate is consistent with the profile of planting plate, and two inner via hole shapes are also consistent, core inserts stripper plate and plants in the inner via hole of plate, and with through hole close-fitting.The framed core rod that can join several different model products of this invention, does not framedly need integral replacing, thereby is conducive to reduce costs, but exist equally in the time changing core, workload is large, the easy problem of mold damage.
In addition, aluminum alloy die-casting die can produce a large amount of heats in the time of work, in order to make mould maintain normal production, horizontal cooling duct and corresponding constant-temperature cooling device need to be set conventionally on the upper die and lower die of mould to maintain the constant of mold temperature, the working media of constant-temperature cooling device is generally cold oil, cold oil enters in the cooling duct of upper die and lower die of mould to absorb heat, when mould has just been started working temperature when lower, constant-temperature cooling device heats cold oil, thereby make upper die and lower die be warmed up to quickly the normal operating temperature of mould, reduce the generation of waste product.Because cooling duct normally processes with drill bit, therefore cooling duct is generally linear passage, and must there be two mouths of turnover, therefore for being embedded convex module on counterdie or less inserts, horizontal cooling duct cannot be directly set, generally, in the bottom surface of convex module or inserts, columniform cooling shaft is set, and cooling shaft is divided into two with the partition axially arranging, on counterdie, around corresponding cooling shaft, sealing ring is set, two cooling ducts are set on counterdie, article one, the cooling fluid in cooling duct enters cooling shaft by a side, climbing over the opposite side that enters cooling shaft after partition, then flow back to constant-temperature cooling device by another cooling duct.There are the following problems for above-mentioned cooling structure, first for the less inserts of some sizes on aluminum alloy die-casting die, owing to being difficult to process the cooling shaft that diameter is larger therein, therefore, coupled cooling duct diameter also needs correspondingly to dwindle, thereby the flow of cooling fluid in cooling shaft is diminished, and inserts cannot obtain effectively cooling.In when work, because inserts lateral surface is surrounded by the liquid aluminium alloy of high temperature, thereby its heat radiation is not smooth, and temperature is high, thereby can extend cool time, and then has influence on the shaping efficiency of mould.
Summary of the invention
When one object of the present invention is to solve the existing replacing core of existing aluminum alloy die-casting die, the problem of the large and easy mold damage of workload, provides a kind of aluminum alloy die-casting die, and it is convenient for changing core, can mold damage.
Another object of the present invention is in order to solve the existing problem that cannot carry out to the less inserts of size effective cooling of existing aluminum alloy die-casting die, a kind of aluminum alloy die-casting die is provided, it is cooling undersized inserts effectively, thereby improves significantly production efficiency and the product quality of mould.
To achieve these goals, the present invention is by the following technical solutions: a kind of aluminum alloy die-casting die, comprise patrix, counterdie, be arranged on, guiding-positioning structure between counterdie, and be arranged on, the cooling duct being connected with constant-temperature cooling device on counterdie, described counterdie comprises the lower bolster of solid punch piece, and be positioned at the fixed base plate of counterdie bottommost, described convex module is provided with the core fixing hole that is through to fixed base plate bottom surface, core fixing hole is provided with threaded counterbore at the openend of fixed base plate bottom surface, in core fixing hole, be provided with the core that moulding is used, be provided with the position limiting convex ring that is positioned at counterbore at the root of core, counterbore internal thread is connected with the plug of butt position limiting convex ring bottom surface.
Core of the present invention is to be fixed on the fixed base plate of counterdie bottommost, like this, when installation, can directly insert from the core fixing hole of fixed base plate bottom surface, then with plug shutoff.And need repairing while replacing, can from the core fixing hole of fixed base plate, extract easily, thereby avoid whole counterdie dismounting, improve widely the efficiency of installing and keeping in repair.
As preferably, described position limiting convex ring comprises the stop nut that is set in the spacing shim of core root and is laminated on spacing shim outer surface and is threaded with core, the root end face of core is provided with the anti-rotation draw-in groove that connects periphery, and the endoporus of spacing shim is provided with the positive stop strip with anti-rotation draw-in groove adaptation.
In the prior art, the position limiting convex ring of core root is all generally by the mode of core root jumping-up is made into integration, to save material simplified processing process.But jumping-up processing belongs to plastic working technique, need on the one hand special cold headers, the position limiting convex ring tensile strength of being come by jumping-up is on the other hand low, and easily ruptures between core.Particularly, the core length processing is difficult to change, and for reducing the model specification of core spare part so that produce, is generally to prepare spare part by longer core length specification, presses the new end of physical length cutting row when use again, thereby causes the waste of material.Core of the present invention and position limiting convex ring adopt fabricated structure, position limiting convex ring completes by assembling mode, the positive stop strip of spacing shim is stuck in anti-rotation draw-in groove, play on the one hand axial limiting effect, can avoid on the other hand rotating, stop nut is close to the position limiting convex ring of spacing shim with complete, avoids the loosening of stop nut simultaneously.Particularly, spare part can be made wire rod by diameter, and prepares corresponding spacing shim and stop nut, need to use time, by physical length cutting length of wire, and cut anti-rotation draw-in groove in one end-grain cutting, then mounting limit pad and stop nut can form core, effectively to reduce the waste of material.
As preferably, described core comprises the canned paragraph for the adjusting section of moulding one end and close position limiting convex ring one end, the upper surface of canned paragraph is provided with adjustment hole, the side of canned paragraph is provided with the regulating tank that connects adjustment hole vertically, regulate the lower end of section to be plugged in adjustment hole, regulate the side of section to be provided with the first position-limitting pin radially stretching in regulating tank.
The end of core is wrapped up by workpiece in the time of moulding, therefore there is larger Bao Moli, particularly there is like this die casting of multiple cores for engine support compression mod, its overall Bao Moli is larger, therefore in the time ejecting, need larger ejecting force, can increase on the one hand the load that ejects of die casting machine, on mould, need more push rod is set, and workpiece also easily produces the flaws such as distortion in the time ejecting simultaneously.Core of the present invention adopts segmentation structure, and regulate between section and canned paragraph and can move to axial, like this, in the time that ejecting mechanism starts to move, the core being wrapped on workpiece regulates section meeting along with workpiece is ejected together, thereby ejecting mechanism now only need overcome the Bao Moli of convex module, thereby can greatly reduce the load that ejects of die casting machine, workpiece is not because the ejecting force compared with little can produce the flaws such as distortion.Move after certain stroke at ejecting mechanism, the first position-limitting pin is conditioned groove and blocks spacingly, and core now regulates section no longer with workpiece movable, thereby core and workpiece are separated, thereby ejecting mechanism only need overcome the Bao Moli of core.That is to say, total Bao Moli is resolved into two parts, thereby the required ejecting force of identical product structure reduces greatly.In the time of upper and lower mould matched moulds, the cavity surface of patrix can promote to regulate section retraction to reset.Particularly, there is fracture at the head of moulding and need repairing while changing in the core of segmentation structure, only needs to change to regulate section, thereby reduce maintenance and production cost.
As preferably, described core comprises the canned paragraph for the adjusting section of moulding one end and close position limiting convex ring one end, the upper surface of canned paragraph is provided with adjustment hole, the side of canned paragraph is provided with helical form and connects the regulating tank of adjustment hole, regulate the lower end of section to be plugged in adjustment hole, regulate the side of section to be provided with the first position-limitting pin radially stretching in regulating tank.
In this scheme, regulating tank in the shape of a spiral, like this, in the time that ejecting mechanism starts to move, the core being wrapped on workpiece regulates section meeting along with workpiece is ejected together, thereby ejecting mechanism now only need overcome the Bao Moli of convex module, thereby can greatly reduce the load that ejects of die casting machine, workpiece is not because the ejecting force compared with little can produce the flaws such as distortion.Meanwhile, the first position-limitting pin moves along spiral helicine regulating tank, the adjusting section of core is rotated in adjustment hole, and then make to regulate between the shaped ends of section and workpiece, produce loosening, when ejecting mechanism moves after certain stroke, the first position-limitting pin is conditioned groove and blocks spacingly, and core now regulates section no longer with workpiece movable, thereby core and workpiece are separated.Because core adjusting section is to be positioned at the forming hole of workpiece in the time rotating, therefore it can not bend, and in the time that core regulates section to be no longer separated with workpiece movable and with workpiece, because Bao Moli is now minimum, therefore workpiece can be separated with core like a cork, thereby can effectively avoid core in ejection process, to occur buckling phenomenon.
As preferably, the helical angle of described regulating tank is 60 degree to 75 degree, guarantee core regulate section between the incipient stage ejecting and the forming hole of workpiece, produce loosening in, avoid occurring stuck phenomenon between the first position-limitting pin and regulating tank, be conducive to regulate section reset.
As preferably, described core fixing hole comprises that top is near the cooperation section of the molded surface of convex module and the reaming section of bottom, coordinate diameter and the core of section to regulate the diameter of section suitable, the diameter of reaming section is greater than the diameter of core canned paragraph, regulate the side that exposes to adjustment hole in section to be provided with the second position-limitting pin radially, this second position-limitting pin is positioned at the reaming section of core fixing hole, on core, be also arranged with stage clip, this stage clip one end is against the second position-limitting pin, and the other end is against reaming section and the step that coordinates section to be connected.
After ejecting mechanism resets, regulate section can to reset by automatic retracted under the effect of stage clip, make core keep its initial length, like this, the core of this segmentation structure can be applicable to moulding blind hole simultaneously.
As preferably, described counterdie is provided with inserts, the bottom surface of described inserts is at least provided with a cooling blind hole of extending towards end face, the opening part of cooling blind hole is provided with end cover, in cooling blind hole, be filled with cold-producing medium, be provided with sinter layer at cooling blind hole sidewall and end cover medial surface, counterdie is provided with cooling groove that can accommodating end cover at corresponding end cover place, cooling groove is connected with the cooling duct of counterdie, is also provided with the O-ring seals around cooling groove on counterdie.
What the type of cooling of inserts of the present invention adopted is the refrigeration principle of similar air-conditioning, cold-producing medium in cooling blind hole can automatically flow near inserts top one side under the effect of capillary structure, cold-producing medium flashes to gas and is full of rapidly whole cooling blind hole after the heat absorbing on inserts, because the end cover cooling fluid direct and cooling duct that is positioned at cooling groove contacts, its temperature is lower, therefore become liquid near after the gaseous refrigerant release heat of end cover one side, then under the effect of capillary structure, again flow near inserts top one side, so move in circles and the heat on inserts can be distributed rapidly.Cooling blind hole wherein can realize by the simple processing technology of boring, it is simple in structure, thereby can reduce significantly manufacturing cost, the diameter of cooling blind hole can be determined according to the size of inserts appearance and size, when inserts profile is large or when out-of-shape, multiple cooling blind holes can be set, thereby be conducive to the equilibrium that inserts keeps temperature.
As preferably, the sidewall of described cooling blind hole is provided with some heat absorption circles of arranging vertically, and described heat absorption circle comprises some fin strips of being close to the circle body of cooling blind hole sidewall and being extended by circle body one end edge tilt, and described heat absorption circle surface is provided with sinter layer.
The heat of inserts can be transmitted on heat absorption circle, because the inwall of cooling blind hole has sinter layer with heat absorption circle surface simultaneously, thereby adsorption refrigerating agent make cold-producing medium evaporation jointly, thereby increase significantly the heat radiation disengagement area in cooling blind hole, improve heat absorption efficiency.Particularly the fin strips of heat absorption circle tilts to extend, thereby can avoid and cooling blind hole inwall laminating, is conducive to improve the evaporation rate of cold-producing medium.
As preferably, on described end cover, be rotatably connected to rotation ring set, be provided with to the periphery equal intervals of rotation ring set some blades, between cooling duct and the axis of rotation ring set, there is an eccentric throw.
In the time that the cooling fluid in cooling duct is flowed through rotation ring set in cooling groove prejudicially, promote blade and make to rotate ring set and rotate, thereby the cooling fluid in cooling groove is played to agitaion, be conducive to the evenly fully heat absorption of cooling fluid.
Therefore, the present invention has following beneficial effect: be convenient for changing core, and can mold damage, and can reduce and eject load, extend life-span of core, cooling undersized inserts effectively simultaneously, thus improve significantly production efficiency and the product quality of mould.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of embodiment 1.
Fig. 2 is the enlarged drawing at C place in Fig. 1.
Fig. 3 is the enlarged drawing at B place in Fig. 1.
Fig. 4 is a kind of decomposition texture schematic diagram of core root in Fig. 1.
Fig. 5 is the enlarged drawing at A place in Fig. 1.
Fig. 6 is the structural representation that in embodiment 2, core regulates section one end.
In figure: 1, patrix 11, die cavity 2, counterdie 21, convex module 22, inserts 23, cooling groove 24, lower bolster 25, fixed base plate 26, core fixing hole 261, coordinate section 262, reaming section 27, core 271, position limiting convex ring 272, anti-rotation draw-in groove 273, spacing shim 274, stop nut 275, positive stop strip 276, regulate section 277, canned paragraph 278, adjustment hole 279, regulating tank 28, plug 29, stage clip 291, the first position-limitting pin 292, the second position-limitting pin 30, adjusting rod 3, cooling duct 4, cooling blind hole 5, end cover 6, sinter layer 7, O-ring seals.
the specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention will be further described.
Embodiment 1: as shown in Figure 1, a kind of aluminum alloy die-casting die, comprise patrix 1, counterdie 2, be arranged on, guiding-positioning structure (not shown) between counterdie, and be arranged on, the cooling duct 3 being connected with constant-temperature cooling device (not shown) on counterdie, guiding-positioning structure can adopt existing lead to coordinate the structure of pilot hole, patrix is provided with die cavity 11, counterdie comprises lower bolster 24 and is positioned at the fixed base plate 25 of counterdie bottommost, on lower bolster, be embedded with convex module 21, convex module is provided with inlays through hole, inlay and in through hole, be embedded with columniform inserts 22.On convex module, be also provided with multiple core fixing holes 26, this core fixing hole runs through lower bolster, ejecting mechanism until fixed base plate bottom surface is provided with the core 27 that moulding is used in core fixing hole.For fixing core, we can arrange counterbore in the openend of fixed base plate bottom surface one side at core fixed hole position, on the medial surface of counterbore, internal thread are set simultaneously.Meanwhile, core arranges a position limiting convex ring 271 that is positioned at counterbore at the root that is positioned at fixed base plate one side, with moving axially of restriction core, and connect the plug 28 of a butt position limiting convex ring bottom surface at counterbore internal thread, core can not deviate from from fixed base plate one side, preferably, plug can adopt existing interior hexagonal holding screw.Like this, in the time of die assembly, can first the other parts of mould be assembled, finally core directly be inserted from the core fixing hole of fixed base plate bottom surface, then make core fixing with plug shutoff.And need repairing while changing core, can pull down the plug of fixed base plate bottom surface, then from the core fixing hole of fixed base plate, extract easily core, thereby avoid whole counterdie to disassemble, improve widely the efficiency of installing and keeping in repair.
For the ease of the processing and manufacturing of core, core and position limiting convex ring can adopt fabricated structure, particularly, and as shown in Figure 3, Figure 4, we can arrange along the anti-rotation draw-in groove 272 of Axis Extension and perforation periphery at the root end face of core, at the lateral surface of core root, external screw thread are set simultaneously.Correspondingly, position limiting convex ring comprises a stop nut 274 that is set in the spacing shim 273 of core root and is laminated on spacing shim outer surface and is threaded with the external screw thread of core root, the positive stop strip 275 of setting and anti-rotation draw-in groove adaptation on the endoporus of spacing shim, these positive stop strip two ends are connected with the edge of spacing shim endoporus respectively.Anti-rotation draw-in groove can limit the axial advancement of spacing shim, and the stop nut that presses spacing shim makes spacing shim be fastened on core, thereby forms a dismountable position limiting convex ring.
In addition, to the core for through hole on shaping workpiece, we can make segmentation structure by core, particularly, as shown in Figure 2, core comprises the adjusting section 276 less for moulding one end diameter and the close larger canned paragraph 277 of position limiting convex ring one end diameter, and the upper surface of canned paragraph arranges coaxial adjustment hole 278, the internal diameter of adjustment hole is suitable with the external diameter of adjusting section lower end, thereby makes to regulate the lower end of section to be axially movably plugged in adjustment hole.For avoiding regulating section and canned paragraph to be separated, we also can arrange in the side of canned paragraph the regulating tank 279 that connects adjustment hole vertically, in the side that regulates section, the first position-limitting pin 291 radially stretching in regulating tank are set simultaneously.When the first position-limitting pin moves in regulating tank, regulate Duan Ze flexible at adjustment hole, thereby make core there is a shorter initial length and longer spread length.Like this, workpiece is in the time of formative stage, and core is in initial length state; In the time that workpiece ejects after moulding, ejecting mechanism starts action, be wrapped in core on workpiece and regulate the section can be along with workpiece moves together and stretches out adjustment hole, thereby ejecting mechanism now only need overcome the Bao Moli of convex module, thereby can greatly reduce the load that ejects of die casting machine; Eject after certain stroke at workpiece, the first position-limitting pin is conditioned groove and blocks spacingly, and core arrives spread length state, and core now regulates section no longer with workpiece movable, thereby core and workpiece are separated, thereby ejecting mechanism only need overcome the Bao Moli of core.In the time of upper and lower mould matched moulds, the cavity surface of patrix can promote to regulate section retraction to be reset to initial length state.In the time that the adjusting paragraph header portion generation fracture of core needs repairing replacing, only need correspondingly change adjusting section, thereby can reduce significantly maintenance and production cost.Certainly, for ease of regulating the replacing of section, we can radially arrange tapped through hole at the root that regulates section, and correspondingly, the first position-limitting pin can be made into multidiameter form, and it comprises thread segment that mid diameter is larger and less spacing section of two ends diameter.When installation, can be first length on demand intercept one end from longer bar, then process a tapped through hole radially at its root and regulate section to form, then will regulate section to insert in the adjustment hole of canned paragraph, rotate and regulate section to make to regulate the tapped through hole of section root just to regulating tank, finally by spacing section of the first position-limitting pin one end tapped through hole through regulating tank and adjusting section, now rotate the first position-limitting pin, can make the thread segment of the first position-limitting pin form and be threaded with the tapped through hole that regulates section, thereby make the spacing section of screens at the first position-limitting pin two ends in regulating tank.
To the core for blind hole on shaping workpiece, during due to moulding the die cavity of patrix not should with the upper end in contact of core, therefore the core of above-mentioned segmentation structure regulate section cannot reset completely.For this reason, we can make shoulder hole by core fixing hole, particularly, core fixing hole comprises that top is near the cooperation section 261 of the molded surface of convex module and the reaming section 262 of bottom, coordinates diameter and the core of section to regulate the diameter of section suitable, coordinates desirable 5-10 times of coordinating section diameter of length of section, the diameter of reaming section is greater than the diameter of core canned paragraph, thereby between reaming section and canned paragraph, form gap, to reduce quality of fit between the two, simplified processing process.Regulate the side that exposes to adjustment hole in section that second position-limitting pin 292 is radially set, the second position-limitting pin can adopt the structure identical with the first position-limitting pin to be connected with regulating section, this second position-limitting pin exposes to the reaming section that regulates the two ends of section to be positioned at core fixing hole, and on core, also need a sheathed stage clip 29, this stage clip one end is against the second position-limitting pin, and the other end is against reaming section and the step that coordinates section to be connected.Like this, in the time that workpiece is ejected, the elastic force that regulates section can overcome stage clip extends, and core is in spread length state; In the time regulating section to separate with workpiece, stage clip promotes to regulate section retraction to reset, thus the blind hole on plastic workpiece.
In order to carry out cooling to being arranged on the inserts that on counterdie, size is less better, as shown in Figure 5, we can arrange a cooling blind hole 4 of extending towards end face at the place of bottom center of inserts, in cooling blind hole, be filled with cold-producing medium, then at the opening part of cooling blind hole, an end cover 5 is set, to avoid the leakage of cold-producing medium.For the ease of manufacturing and installing, we can arrange a counterbore at the opening part of cooling blind hole, then internal thread is set on counterbore, end cover is made the tubbiness that open one end, one end is sealed, and end cover is opened one end lateral surface external screw thread is set, and is threaded in the counterbore of cooling blind hole, certainly, now the endoporus of end cover should be consistent with the diameter of cooling blind hole, to form one transition, and need corresponding sealing ring be set in the junction of end cover and counterbore.In addition, we also need be on cooling blind hole sidewall and end cover medial surface the sinter layer 6 of sintering one deck anaerobic copper powder, can form because sinter layer is inner the trickle aperture evenly gathering, thereby form the capillary structure that is extended to end cover by the sidewall of cooling blind hole.Be understandable that, we also need to be on counterdie the position of corresponding end cover arrange one can accommodating end cover circular cooling groove 23, make the cooling duct of counterdie connect cooling groove simultaneously, thereby make end cover one end become radiating end, and the bottom of cooling blind hole become heat absorbing end.Preferably, cooling groove should be greater than end cover, thereby between is formed with space, so that the cooling fluid in cooling duct successfully flows.Cold-producing medium in cooling blind hole can automatically flow near inserts top one side under the effect of capillary structure, be adsorbed on equably on the inwall of cooling blind hole heat absorbing end, the cold-producing medium of heat absorbing end flashes to gas after absorbing the heat on inserts, and flow to rapidly radiating end, cooling fluid in cooling duct is taken away the heat of radiating end rapidly, thereby make the cold-producing medium of radiating end gaseous state get back to liquid state, and under the effect of capillary structure, again flow to heat absorbing end, so move in circles and the heat on inserts can be distributed rapidly.Particularly, cooling fluid can be cooling water or cold oil.Certainly, we also need arrange the O-ring seals 7 around cooling groove on counterdie, to make cooling duct all the time in sealing state.The diameter of cooling blind hole can determine according to the size of inserts appearance and size, when inserts profile is large or when out-of-shape, multiple cooling blind holes can be set, thereby be conducive to the equilibrium that inserts keeps temperature.
In order further to improve cooling effect, as shown in Figure 3, we also can arrange some heat absorption circles 8 of arranging vertically at the sidewall of cooling blind hole 4, heat absorption circle comprises some fin strips 82 of being close to the circle body 81 of cooling blind hole sidewall and being extended by circle body one end edge tilt, simultaneously at the also sinter layer of sintering one deck anaerobic copper powder of heat absorption circle surface, to form the capillary structure effect that sinter layer was play in similar cooling blind hole.Like this, liquid cold-producing medium can be adsorbed on the whole surface of heat absorption circle under the effect of the sinter layer on heat absorption circle top layer, thereby can increase widely endotherm area, and liquid cold-producing medium is evaporated quickly.Certainly, for the ease of the installation of heat absorption circle, the available stainless steel thin slice of heat absorption circle is made, thereby can conduct fast heat and have enough elasticity, the external diameter of circle body should be slightly larger than the internal diameter of cooling blind hole, so that heat absorption circle utilizes elasticity to be interference fitted on the inwall of cooling blind hole.
Finally, we also can be rotationally connected one and rotate ring set 9 on end cover, on the periphery of rotation ring set, some blades 91 are set equally spacedly, and make to have an eccentric throw between cooling duct and the axis of rotation ring set.Like this, when cooling fluid in cooling duct is impacted the blade that rotates ring set one side, can promote to rotate ring set rotates, thereby cooling fluid is played to a sufficient agitaion, also increase the contact area of radiating end and cooling fluid simultaneously, thereby can improve significantly radiating rate, improve the cooling effect of inserts.
Embodiment 2: a kind of aluminum alloy die-casting die, the same segmentation structure that adopts of core 27 wherein, particularly, as shown in Figure 6, core comprises the adjusting section 276 less for moulding one end diameter and the close larger canned paragraph 277 of position limiting convex ring one end diameter, the upper surface of canned paragraph arranges coaxial adjustment hole 278, and the internal diameter of adjustment hole is suitable with the external diameter of adjusting section lower end, thereby makes to regulate the lower end of section to be axially movably plugged in adjustment hole.For avoiding regulating section and canned paragraph to be separated, the regulating tank 279 that connects adjustment hole is set in the side of canned paragraph, and in the side that regulates section, the first position-limitting pin 291 radially stretching in regulating tank is set.As different from Example 1, in the shape of a spiral, preferably, the helical angle of regulating tank is 60 degree to 75 degree to regulating tank wherein.Like this, in the time that ejecting mechanism moves, the adjusting section of core is followed workpiece on the one hand and is moved together, forms and rotates simultaneously under spiral helicine regulating tank effect, make to regulate between the shaped ends of section and workpiece, produce loosening.Block when spacing when the first position-limitting pin is conditioned groove, core regulates section no longer with workpiece movable, thereby core and workpiece are separated.Certainly, for ease of regulating the replacing of section, we can radially arrange tapped through hole at the root that regulates section, and correspondingly, the first position-limitting pin can be made into multidiameter form, and it comprises thread segment that diameter is less and larger spacing section of diameter.When installation, can be first length on demand intercept one end from longer bar, then process a tapped through hole radially at its root and regulate section to form, then will regulate section to insert in the adjustment hole of canned paragraph, rotate and regulate section to make to regulate the tapped through hole of section root just to regulating tank, finally the thread segment of first position-limitting pin one end is connected on the tapped through hole that regulates section through regulating tank rear thread, thereby makes the spacing section of screens at the first position-limitting pin two ends in regulating tank.Remaining structure is identical with embodiment 1, does not do too much description at this.
Claims (9)
1. an aluminum alloy die-casting die, comprise patrix, counterdie, be arranged on, guiding-positioning structure between counterdie, and be arranged on, the cooling duct being connected with constant-temperature cooling device on counterdie, described counterdie comprises the lower bolster of solid punch piece, and be positioned at the fixed base plate of counterdie bottommost, it is characterized in that, described convex module is provided with the core fixing hole that is through to fixed base plate bottom surface, core fixing hole is provided with threaded counterbore at the openend of fixed base plate bottom surface, in core fixing hole, be provided with the core that moulding is used, be provided with the position limiting convex ring that is positioned at counterbore at the root of core, counterbore internal thread is connected with the plug of butt position limiting convex ring bottom surface.
2. a kind of aluminum alloy die-casting die according to claim 1, it is characterized in that, described position limiting convex ring comprises the stop nut that is set in the spacing shim of core root and is laminated on spacing shim outer surface and is threaded with core, the root end face of core is provided with the anti-rotation draw-in groove that connects periphery, and the endoporus of spacing shim is provided with the positive stop strip with anti-rotation draw-in groove adaptation.
3. a kind of aluminum alloy die-casting die according to claim 1, it is characterized in that, described core comprises the canned paragraph for the adjusting section of moulding one end and close position limiting convex ring one end, the upper surface of canned paragraph is provided with adjustment hole, the side of canned paragraph is provided with the regulating tank that connects adjustment hole vertically, regulate the lower end of section to be plugged in adjustment hole, regulate the side of section to be provided with the first position-limitting pin radially stretching in regulating tank.
4. a kind of aluminum alloy die-casting die according to claim 1, it is characterized in that, described core comprises the canned paragraph for the adjusting section of moulding one end and close position limiting convex ring one end, the upper surface of canned paragraph is provided with adjustment hole, the side of canned paragraph is provided with helical form and connects the regulating tank of adjustment hole, regulate the lower end of section to be plugged in adjustment hole, regulate the side of section to be provided with the first position-limitting pin radially stretching in regulating tank.
5. a kind of aluminum alloy die-casting die according to claim 4, is characterized in that, the helical angle of described regulating tank is 60 degree to 75 degree.
6. according to a kind of aluminum alloy die-casting die described in claim 3 or 4 or 5, it is characterized in that, described core fixing hole comprises the cooperation section of top near the molded surface of convex module, and the reaming section of bottom, coordinate diameter and the core of section to regulate the diameter of section suitable, the diameter of reaming section is greater than the diameter of core canned paragraph, regulate the side that exposes to adjustment hole in section to be provided with the second position-limitting pin radially, this second position-limitting pin is positioned at the reaming section of core fixing hole, on core, be also arranged with stage clip, this stage clip one end is against the second position-limitting pin, the other end is against reaming section and the step that coordinates section to be connected.
7. according to a kind of aluminum alloy die-casting die described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that, described counterdie is provided with inserts, the bottom surface of described inserts is at least provided with a cooling blind hole of extending towards end face, the opening part of cooling blind hole is provided with end cover, in cooling blind hole, be filled with cold-producing medium, be provided with sinter layer at cooling blind hole sidewall and end cover medial surface, counterdie is provided with cooling groove that can accommodating end cover at corresponding end cover place, cooling groove is connected with the cooling duct of counterdie, on counterdie, be also provided with the O-ring seals around cooling groove.
8. a kind of aluminum alloy die-casting die according to claim 7, it is characterized in that, the sidewall of described cooling blind hole is provided with some heat absorption circles of arranging vertically, described heat absorption circle comprises some fin strips of being close to the circle body of cooling blind hole sidewall and being extended by circle body one end edge tilt, and described heat absorption circle surface is provided with sinter layer.
9. a kind of aluminum alloy die-casting die according to claim 7, it is characterized in that, on described end cover, be rotatably connected to rotation ring set, be provided with to the periphery equal intervals of rotation ring set some blades, between cooling duct and the axis of rotation ring set, there is an eccentric throw.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410005609.8A CN103769557B (en) | 2014-01-03 | 2014-01-03 | A kind of aluminum alloy die-casting die |
| CN201510298928.7A CN104923760B (en) | 2014-01-03 | 2014-01-03 | A kind of aluminum alloy die-casting die reducing Bao Moli |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410005609.8A CN103769557B (en) | 2014-01-03 | 2014-01-03 | A kind of aluminum alloy die-casting die |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510298928.7A Division CN104923760B (en) | 2014-01-03 | 2014-01-03 | A kind of aluminum alloy die-casting die reducing Bao Moli |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103769557A true CN103769557A (en) | 2014-05-07 |
| CN103769557B CN103769557B (en) | 2015-08-12 |
Family
ID=50562576
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510298928.7A Active CN104923760B (en) | 2014-01-03 | 2014-01-03 | A kind of aluminum alloy die-casting die reducing Bao Moli |
| CN201410005609.8A Active CN103769557B (en) | 2014-01-03 | 2014-01-03 | A kind of aluminum alloy die-casting die |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510298928.7A Active CN104923760B (en) | 2014-01-03 | 2014-01-03 | A kind of aluminum alloy die-casting die reducing Bao Moli |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104923760B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297480A (en) * | 2017-07-07 | 2017-10-27 | 上海皮尔博格有色零部件有限公司 | Core fixed mechanism and mould |
| CN109571149A (en) * | 2018-12-03 | 2019-04-05 | 河南省西峡汽车水泵股份有限公司 | A kind of aluminum alloy die-casting die mold core profile processing method |
| CN110899631A (en) * | 2019-12-22 | 2020-03-24 | 宁波百宏模具有限公司 | Automobile auxiliary frame mold |
| CN113523198A (en) * | 2021-06-30 | 2021-10-22 | 浙江凯华模具有限公司 | Heat conduction pipe loop structure in mould |
| WO2023273127A1 (en) * | 2021-06-30 | 2023-01-05 | 浙江凯华模具有限公司 | Cooling rod assembly for die and in-die heat-conducting tube loop structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976213A (en) * | 2017-03-28 | 2017-07-25 | 宁波神通模塑有限公司 | A kind of inner threaded core-pulling structure of injection mold |
| CN108772518B (en) * | 2018-07-03 | 2024-06-14 | 浙江杭机铸造有限公司 | Hot-press forming device for metal casting processing and processing technology thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3667248A (en) * | 1970-09-08 | 1972-06-06 | Arthur H Carlson | Probe type die cooling arrangement |
| US6145578A (en) * | 1998-08-17 | 2000-11-14 | Wayne C. Zearbaugh | Spring unit for core pin assembly |
| CN201841252U (en) * | 2010-10-28 | 2011-05-25 | 济南慧成铸造有限公司 | Metal die-casting mold |
| CN202316966U (en) * | 2011-11-14 | 2012-07-11 | 重庆大江美利信压铸有限责任公司 | Die frame structure convenient for replacing core |
| CN202318803U (en) * | 2011-12-07 | 2012-07-11 | 重庆大江美利信压铸有限责任公司 | Mould structure with quick-replacing core |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19514400C1 (en) * | 1995-04-19 | 1996-08-29 | Cadform Eng Gmbh | Core unit for casting moulds esp. for use in die casting |
| KR101048123B1 (en) * | 2008-06-11 | 2011-07-08 | 현대자동차주식회사 | Core pin unit for die casting |
| CN202824600U (en) * | 2012-09-17 | 2013-03-27 | 江苏徐航科技有限公司 | Die-casting die core for oil pump |
-
2014
- 2014-01-03 CN CN201510298928.7A patent/CN104923760B/en active Active
- 2014-01-03 CN CN201410005609.8A patent/CN103769557B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3667248A (en) * | 1970-09-08 | 1972-06-06 | Arthur H Carlson | Probe type die cooling arrangement |
| US6145578A (en) * | 1998-08-17 | 2000-11-14 | Wayne C. Zearbaugh | Spring unit for core pin assembly |
| CN201841252U (en) * | 2010-10-28 | 2011-05-25 | 济南慧成铸造有限公司 | Metal die-casting mold |
| CN202316966U (en) * | 2011-11-14 | 2012-07-11 | 重庆大江美利信压铸有限责任公司 | Die frame structure convenient for replacing core |
| CN202318803U (en) * | 2011-12-07 | 2012-07-11 | 重庆大江美利信压铸有限责任公司 | Mould structure with quick-replacing core |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297480A (en) * | 2017-07-07 | 2017-10-27 | 上海皮尔博格有色零部件有限公司 | Core fixed mechanism and mould |
| CN109571149A (en) * | 2018-12-03 | 2019-04-05 | 河南省西峡汽车水泵股份有限公司 | A kind of aluminum alloy die-casting die mold core profile processing method |
| CN110899631A (en) * | 2019-12-22 | 2020-03-24 | 宁波百宏模具有限公司 | Automobile auxiliary frame mold |
| CN113523198A (en) * | 2021-06-30 | 2021-10-22 | 浙江凯华模具有限公司 | Heat conduction pipe loop structure in mould |
| WO2023273127A1 (en) * | 2021-06-30 | 2023-01-05 | 浙江凯华模具有限公司 | Cooling rod assembly for die and in-die heat-conducting tube loop structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103769557B (en) | 2015-08-12 |
| CN104923760A (en) | 2015-09-23 |
| CN104923760B (en) | 2016-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103769557B (en) | A kind of aluminum alloy die-casting die | |
| CN202155476U (en) | Multipoint combined cooling device | |
| CN100453818C (en) | Technological process of making wing type centrifugal vane whell | |
| CN203664628U (en) | Aluminum alloy die-casting die for engine cylinder block | |
| CN208696331U (en) | A kind of efficiently cooling interior cryoprobe piece and cutter | |
| CN203664626U (en) | Aluminum alloy die-casting die for engine support | |
| CN203664627U (en) | Automobile transmission shell aluminum alloy die-casting die | |
| CN201404960Y (en) | Cutting knife lubricating device of edge cutting device for aluminum foil | |
| CN205996093U (en) | A kind of forging mold | |
| CN205238445U (en) | Scavenger fan flabellum injection mold | |
| CN204449527U (en) | A kind of screw cutter with interior cooling structure | |
| CN204486925U (en) | What be provided with shock insulation type mount pad can the milling machine of indentation | |
| CN102232502A (en) | Production technology and production line of rice noodles and noodles | |
| CN207222979U (en) | Rotary knife tower with interior cold connection system | |
| CN204172075U (en) | A kind of fin is upper and lower shut-off mechanism automatically | |
| CN209077822U (en) | Six side's power head flying disc of servo turnning and milling | |
| CN207629179U (en) | Hub mold water cooling plant | |
| CN207535233U (en) | Valve needle type hot runner cylinder | |
| CN203664625U (en) | Outdoor illumination lamp aluminum alloy die-casting die | |
| CN204148479U (en) | A kind of mould that high pressure spot device for cooling is housed | |
| CN208483194U (en) | A kind of wheel hub casting core with cooling device | |
| CN202239179U (en) | Stamping mold and rotary mold handle thereof | |
| CN207643501U (en) | It is a kind of can fast cooling precision die | |
| CN209139732U (en) | A kind of semi-axle bevel gear large cylindrical cold forging die | |
| CN103567525A (en) | Disc type cutter cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An aluminum alloy die-casting mold Effective date of registration: 20230627 Granted publication date: 20150812 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Beilun sub branch Pledgor: NINGBO ELITE MOLD MANUFACTURE Co.,Ltd. Registration number: Y2023980046012 |