CN108188375A - A kind of two-flange shaft flow fan casing compression mod - Google Patents
A kind of two-flange shaft flow fan casing compression mod Download PDFInfo
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- CN108188375A CN108188375A CN201810151591.0A CN201810151591A CN108188375A CN 108188375 A CN108188375 A CN 108188375A CN 201810151591 A CN201810151591 A CN 201810151591A CN 108188375 A CN108188375 A CN 108188375A
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- flow fan
- compression mod
- push
- flange shaft
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- 230000006835 compression Effects 0.000 title claims abstract description 28
- 238000007906 compression Methods 0.000 title claims abstract description 28
- 238000005266 casting Methods 0.000 claims abstract description 19
- 210000003205 muscle Anatomy 0.000 claims description 36
- 238000004512 die casting Methods 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 9
- 239000010432 diamond Substances 0.000 claims description 9
- 241000239290 Araneae Species 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 238000013433 optimization analysis Methods 0.000 abstract 1
- 238000009966 trimming Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000632 Alusil Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000006902 nitrogenation reaction Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to AC blower fan more particularly to a kind of two-flange shaft flow fan casing compression mods.Aluminium alloy casing is the important part of AC blower fan, thus casing compression mod is one of most important technological equipment in wind turbine production.The compression mod of this double flange casing, the interference situation that die joint is required and occurred when growing away from core pulling at involved three, practical proof and structural optimization analysis are relied on, obtains that a kind of structure understands, is easy to process, casting die joint is beautiful and the optimization design of the fixed and moving mould parting surface structure of non-trimming and the first resetting-mechanism of zero error；Problem is twisted off using what the helicla flute sprue bush of high efficiency, low cost had satisfactorily resolved trumpet assembly ingate.
Description
Technical field
The present invention relates to AC blower fan more particularly to a kind of two-flange shaft flow fan casing compression mods.
Background technology
Aluminium alloy casing is the important part of AC blower fan, thus casing compression mod is most important technique in wind turbine production
One of equipment.It facts have proved, it is intended to which the side-gate mold fed from outer rim frame is all failed with various insufficient.Therefore to such
The frame-type casting being made of interior outer rim preferably uses the trumpet assembly filled from inside to outside, and the side of its ingate break down mechanisms
Formula is more, should make rational selection.In addition, the determining and Exact Design on mold forming part of die joint is to ensureing to cast
Part quality, the maintenance cost for reducing mold are most important.
Invention content
In order to solve defect of the existing technology, the present invention proposes a kind of two-flange shaft flow fan casing compression mod.
Technical solution is used by the present invention reaches above-mentioned purpose：
A kind of two-flange shaft flow fan casing compression mod including cover half fixed plate, helicla flute sprue bush, limiting guide post, is determined
Template, wedge block, inclined guide pillar, fixed mold, quick-changing type ingate mold insert, coulisse, dynamic mould core, shape sliding block, dynamic model lid
Plate, release link, ejector pin retaining plate, push plate, cushion block and bottom plate；
When cover half is installed：Four limiting guide posts are installed in the cover half fixed plate；Mounting guide sleeve on the solid plate；
The helicla flute sprue bush is pressed into the cover half fixed plate；Two pieces of wedge blocks are incorporated on the solid plate, described in four
Inclined guide pillar, the fixed mold and the quick-changing type ingate mold insert；The solid plate is directed at corresponding four limitings
The cover half fixed plate is inserted in after guide post, screws on four nuts, cover half assembling terminates；
When dynamic model is installed：The supplying dynamic mould core in the coulisse, the interior supplying shape sliding block of two side chutes；It closes
The upper dynamic model cover board knocks in dynamic model cover board and the coulisse described in two positioning pin connections into being integral；By all push rods
The ejector pin retaining plate is inserted into the release link, covers the push plate, is integral release part connection using screw；Institute
It states to be inserted into the corresponding hole of coulisse and has assembled the integral release part；The cushion block is put, covers the bottom plate, is locked
After upper trip bolt, dynamic model assembling terminates；
During molding：The shape sliding block is face-up, and the head of four inclined guide pillars of cover half is aligned the shape slides
After four slanting guide pillar holes of block are incorporated into, whole set of die assembling is completed.
Optionally, when casing casting is released：The piston rod of the ejection cylinder of die casting machine pushes push plate coupling bar, the push plate
Coupling bar pushes the push plate, and the push plate pushes all push rods including the release link to release casing casting.
Optionally, casing casting includes Inner edge spider end caps and outer rim quadro frame；The Inner edge spider end cap
Center be bearing hole slot, the bearing hole slot periphery formed Inner edge slots, the Inner edge slot periphery by four connection muscle with
The outer rim quadro frame connects, and border groove is equipped on former and later two sides of the outer rim quadro frame.
Optionally, the compression mod further includes bearing hole core, Inner edge push rod, connection muscle push rod and outer rim push rod；
When casing casting is released：The bearing hole core is connected on the bearing hole slot；The Inner edge push rod is connected to
On the Inner edge slot；The connection muscle push rod is connected on four connection muscle；The outer rim push rod is connected to the outer rim
On slot.
Optionally, four connection muscle are respectively three diamond shape spokes and a U-shaped outlet muscle.
Optionally, the inner wall of the helicla flute sprue bush mills out three helicla flutes.
Optionally, two shape sliding blocks are located by connecting using convex-concave is embedded.
Optionally, along core pulling direction, there are gaps between the slanting guide pillar hole of the inclined guide pillar and the shape sliding block.
Optionally, before molding：The piston rod of the ejection cylinder of die casting machine is retracted in advance, with retracting for the piston rod,
The ejector pin retaining plate is pulled with its rigidly connected push plate coupling bar, the ejector pin retaining plate drives all push rods to retreat to original
Position.
Optionally, at the end of molding：The right side of release link on the ejector pin retaining plate and a left side for the solid plate are big
Plane is coincide, to ensure all recovery rods on earth.
Compared with prior art, the beneficial effects of the invention are as follows：
Compression mod provided by the invention uses trumpet assembly, its charging feature is that metal stream is joined by Inner acies lid through four
The filling of muscle outer rim is connect, such four connections muscle just acts as the ingate of outer rim entity.In addition, trumpet assembly can obtain minimum
The pressure loss, the mold-filling capacity of four connection muscle is equal, therefore the casing surface quality obtained is satisfactory；
The reliability of the first resetting-mechanism work of rigidity that the present invention uses reaches perfectly safe, and simple operation, at low cost
It is honest and clean；
The present invention is easily damaged and shape using quick-changing type ingate mold insert to solve fixed mold ingate breaking part
The problem of sprue being caused to be difficult to extract taper hole into back taper, and the quick-changing type ingate mold insert can facilitate reparation to replace；
The present invention uses helicla flute sprue bush to solve that pressure chamber clout and sprue how to be made at ingate smoothly to break
The problem of splitting.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
Fig. 1 is the stereogram of the casing of one embodiment of the invention；
Vertical views and its A-A direction view and C direction view of the Fig. 2 for the casing of one embodiment of the invention；
Fig. 3 is the bottom view of casing of one embodiment of the invention and its B-B direction view；
Fig. 4 is a kind of full sectional view of two-flange shaft flow fan casing compression mod of one embodiment of the invention；
Fig. 5 is the stereogram of the fixed mold of one embodiment of the invention；
Vertical views and its A direction view and B direction view of the Fig. 6 for the fixed mold of one embodiment of the invention；
Fig. 7 is the full sectional view of the fixed mold of one embodiment of the invention；
Fig. 8 is the stereogram of the dynamic mould core of one embodiment of the invention；
Vertical views and its A direction view and B direction view of the Fig. 9 for the dynamic mould core of one embodiment of the invention；
Figure 10 is the full sectional view of the dynamic mould core of one embodiment of the invention；
Figure 11 is the schematic diagram of the spring elder generation resetting-mechanism of the prior art；
Figure 12 is the schematic diagram of the tapered bar oscillating rod type elder generation resetting-mechanism of the prior art, wherein (a) figure is the signal after resetting
Figure, (b) figure are the schematic diagram before molding；
Figure 13 is the structure chart of the push plate coupling bar of one embodiment of the invention；
Figure 14 is the schematic diagram of the compression mod parting for the first time of one embodiment of the invention；
Figure 15 is the vertical view and its sectional view of the helicla flute sprue bush of one embodiment of the invention；
Figure 16 is the schematic diagram of the compression mod parting for the first time of one embodiment of the invention；
Figure 17 is the stereogram of the two shape sliding blocks of one embodiment of the invention；
Vertical views and its front view and side view of the Figure 18 for the two shape sliding blocks of one embodiment of the invention.
In figure, 1- cover half fixed plates；2- wedge blocks；3- solid plates；4- inclined guide pillars；5- pass cores；6- shape sliding blocks；7- spiral shells
Spin slot sprue bush；8- bearing hole cores；9- fixed molds；10- dynamic mould cores；11- cover half guide sleeves；12- limits guide post；13- is led
Set；14- dynamic model guide posts；15- coulisses；16- outer-hexagonal nuts；17- dynamic model cover boards；18- cushion blocks；19- locking nuts；20- is opened
Mouth gasket；21- push plate coupling bars；22- ejector guide pillars；23- push plate guide posts；24- Inner edge push rods；25- couples muscle push rod；Outside 26-
Edge push rod；27- ejector pin retaining plates；28- push plates；29- release links；30- bottom plates；31- trip bolts；32- quick-changing types ingate is inlayed
Part；100- casings；101- diamond shapes couple muscle；102-U types couple muscle；103- bearing hole slots；104- Inner edge slots；105- border grooves；
106- threaded holes.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the present invention
The mode of applying is explained in detail.
Referring to figs. 1 to Fig. 3, casing uses YL102 alusil alloy materials.It is a kind of composite construction, by Inner edge spiders
End cap and outer rim quadro frame two parts are formed.It is unified between interior outer rim by the diamond shape spoke and single u-shaped outlet muscle of three 14 × 6
One.
To meet the various mounting locations of user, which uses bilateral square frame (being commonly called as double flanges), though in this way
The difficulty and maintenance costs for so substantially increasing mould design and manufacture (are necessarily designed to two sliding blocks because of mold at this time
Outer side core-pulling mechanism, as shown in Figure 4), but such structural modeling is beautiful, and user is easy to use, meets international trend.
Since the bearing chamber of wind turbine is located at Inner edge center, in order to ensure the required precision of bearing, bearing chamber must be after
The turnery processing and rolling and processing in roadIts dimensional accuracy and case hardness requirement could be met.Thus herein not
But must strict guarantee there is not the defects of stomata, shrinkage cavity, and it is ensured that the consistency and mechanical strength of die casting tissue.
As shown in Figure 4, running gate system employs trumpet assembly, its charging feature be metal stream by Inner acies lid through four
Couple the filling of muscle outer rim, such four connections muscle just acts as the ingate of outer rim entity.In addition, trumpet assembly can obtain minimum
The pressure loss, four connection muscle mold-filling capacity it is equal.Be computed and it was verified that dozzle need not be added can be smooth
Type is filled in completion, and casing surface quality is satisfactory.
From casing graphics it is found that mold is in addition to main parting line A, Φ 160 ± 0.2 is the minimum projection of casing outline border inner cavity
At face, auxiliary die joint B need to be added, additionally due to the end surface shape of three connection muscle is diamond shape, thus in connection breaking of muscle and tendon face
Auxiliary die joint C must be added at intermediate symmetry again.
In order to which above-mentioned analysis is made to be achieved on mould structure, relative to three die joints in Fig. 1, design in cover half
The position is as shown in Fig. 5 to Figure 10 on core and dynamic mould core.When the die is closed, AIt is dynamicWith AIt is fixed、BIt is fixedWith BIt is dynamic、CIt is fixedWith CIt is dynamicOne a kiss
It closes.Cooperation centrum belonging to auxiliary die joint B, C takes 8 ° of gradients, in this way when the protrusion of dynamic mould core is inserted under fixed mold
Not only ensure that closing precision during recess portion, but can effective guarantee steadily coincide in the moldings of thousands of times.This parting mask
It has the following advantages：(1) fixed mold and dynamic mould core in the engaging portion with intersection with relatively equivalent intensity；(2) it is fixed and moving
The die joint engaging portion of mold core is easy to process, it is only necessary to which general tool milling machine can be completed；(3) mold forming part employs surface
Nitrogenation treatment technology, therefore can directly process with work in place, it is not necessary to closing precision caused by worrying heat-treatment distortion declines；(4)
By A direction views and the B direction views of Fig. 6 and Fig. 9 it is found that connection muscle die joint is combined using 8 ° of Wedge-shaped concave-convex, it is ensured that connection
Connect two valve faying face dislocation-free of muscle (as long as its width meets intensity requirement slightly wider than diamond shape section).
With reference to Fig. 4 it is found that when cover half is installed：Die frame uses the standard die set of outsourcing, and cover half fixed plate 1 has been equipped with four
A limiting guide post 12, cover half pulls 3 and has been equipped with two groups of totally 8 guide sleeves, including cover half guide sleeve 11 and guide sleeve 13.In cover half fixed plate
1 press-in helicla flute sprue bush 7 pulls 3 supplying, two pieces of wedge blocks, 2, four inclined guide pillars 4, fixed mold 9 (containing four passes in cover half
Core 5) and quick-changing type ingate mold insert 32, cover half fixed plate 1 is inserted in after cover half is pulled the corresponding four limiting guide posts 12 of alignment, is twisted
Upper four outer-hexagonal nuts 16, cover half part are accused and are completed；
When dynamic model is installed：The supplying dynamic mould core 10 (the big core containing bearing hole core 8) in coulisse 15, in both sides
Supplying shape sliding block 6 in sliding slot, pay attention to shape sliding block 6 should rest on four inclined guide pillars 4 of four inclined holes and cover half head it is firm
The position being aligned well；Dynamic model cover board 17 is closed, knock in two positioning pins and locks socket cap screw, makes 17 He of dynamic model cover board
Coulisse 15 is into being integral；All push rods, release link 29 are inserted into ejector pin retaining plate 27, push plate 28 is covered, in corresponding screw hole
Socket cap screw is inside locked, is integrally formed release part；Be inserted into 15 corresponding hole of coulisse be assembled into it is whole
The release part of body；Cushion block 18 is put, covers bottom plate 30, locks two groups of totally 6 trip bolts 31, dynamic model assembling terminates；
During molding：Make shape sliding block 6 face-up, by the shape sliding block 6 of the head alignment dynamic model of four inclined guide pillars 4 of cover half
Four inclined holes, plummet is incorporated into, and whole set of die assembling, which is accused, to be completed.
Because the piston rod of die casting machine ejection cylinder is rigidly connected by push plate coupling bar 21 and push plate 28, such as Fig. 4
It is shown, therefore the ejection process of casing die casting is：The piston rod of die casting machine ejection cylinder pushes push plate coupling bar 21, push plate connection
30 steps of Φ of bar 21 push push plate 28, and push plate 28 pushes all push rods to release casing casting (containing release link 29)；Before molding
The piston rod of die casting machine liftout tank will be retracted in advance, then retracting with the piston rod, with its rigidly connected push plate coupling bar
21 pull ejector pin retaining plate 27 by locking nut 19 and opening gasket 20, and ejector pin retaining plate 27 drives whole push rods (containing reset
Bar 29) retreat to original position；Molding starts at this time, when molding is fully completed, i.e., II-II die joints fit like a glove, consolidates positioned at push rod
The big plane in a left side that the right side of four release links 29 of fixed board 27 also pulls 3 with cover half is coincide, it is ensured that whole recovery rods on earth, institute
Play the role of the fine positioning of ejecting mechanism with release link 29.
With reference to Fig. 2 and Fig. 4, casing casting includes Inner edge spider end caps and outer rim quadro frame；The Inner edge spider
The center of end cap is bearing hole slot 103, and the periphery of the bearing hole slot 103 forms Inner edge slot 104, the Inner edge slot 104 it is outer
It encloses and is connected by four connection muscle (couple 101 and one single u-shaped of muscle including three diamond shapes and couple muscle 102) with the outer rim quadro frame
It connects, border groove 105 is equipped on former and later two sides of the outer rim quadro frame, the periphery of border groove 105 is additionally provided with screw thread
Hole 106.Further, compression mod further includes bearing hole core 8, Inner edge push rod 24, connection muscle push rod 25, outer rim push rod 26 and hole
Core 5；When casing casting is released：The bearing hole core 8 is connected on the bearing hole slot 103；The Inner edge push rod 24 supports
It is connected on the Inner edge slot 104；The connection muscle push rod 25 is connected on four connection muscle；The outer rim push rod 26 abuts
On the border groove 105, pass core 5 is connect with threaded hole 106, and the threaded hole 106 formed is cast convenient for user installation casing
Part.
With reference to Fig. 5 to Figure 10, the A in Fig. 6 is corresponding to sectional view with the A in Fig. 9 to sectional view, and the two coincide to pour into a mould shape
Into U-shaped connection muscle, U-shaped connection muscle quantity is one；B in Fig. 6 is corresponding to sectional view with the B in Fig. 9 to sectional view, the two kiss
It closes to form diamond shape connection muscle to pour into a mould, diamond shape connection muscle quantity is three.
In inclined guide pillar side core-pulling mechanism, the most commonly used is inclined guide pillar is fixed on cover half, side slide block mounted on dynamic model
Side must prevent that side slide block interferes phenomenon with push rod in reseting procedure is molded at this time.Side slide block core and push rod
The possibility interfered appears in the feelings that the two is overlapped in the projection on open mold direction plane (die joint)
Under condition.As shown in figure 4, in clamping process, inclined guide pillar 4, which is inserted into the inclined hole of shape sliding block 6, makes shape sliding block 6 be answered to die inside
Position, and the release link of mould pushing-off mechanism does not make also push rod be pushed into original position at this time, this will just occur shape sliding block 6 and be pushed away with outer rim
The interference phenomenon that bar 26 (totally 8) bumps against.To solve the problems, such as that this can not avoid, traditionally most common spring first resets
Mechanism and tapered bar oscillating rod type first reset linkage two ways.
(1) spring elder generation resetting-mechanism
As shown in figure 11, spring is mounted on by compression in release link, and during molding, injection molding machine mandril has disengaged from mould ejection plate
Contact, ejector pin retaining plate retreats under the action of spring-return power, then whole push rods on ejector pin retaining plate are also therewith
Return back to initial position.
(2) tapered bar oscillating rod type first resets linkage
As shown in figure 12, when tapered bar oscillating rod type first resets linkage molding, the tapered bar for being installed on cover half fixed plate 1 pushes dress
There is the swing rod of idler wheel, swing rod is forced to make counterclockwise to rotate, while it pushes push plate to be moved to the left again, makes push rod around shaft
Reset prior to side action sliders reset.Wherein (b) figure is the state that tapered bar not yet contacts swing rod in clamping process.
In above two structure, the former the shortcomings that when push rod slightly occur flexural deformation etc. be an impediment to ejecting mechanism movement feelings
During condition, due to resistance abruptly increase, resetting spring is by the powerless reset for completing ejecting mechanism, and resetting spring easily fails；Then
The tapered bar category cantilevered beam members of person when its slope driving idler wheel, idler wheel promotion push plate, if chance push rod quantity is more, especially push away
Bar, which slightly has the resistances such as flexural deformation, increases situation, and tapered bar bending is upwarped or even is broken off, and be easy to cause tapered bar oscillating rod type elder generation
It resets linkage and loosens problem.Service life is short during the defects of both structures are common, risk is big, maintenance cost is high, is not suitable for
The occasion of this use environment difference of compression mod.
On the basis of above-mentioned drawback is summarized, elder generation's resetting-mechanism shown in Fig. 4 has been proven a kind of structure of can yet be regarded as
It is simple and convenient to operate and the scheme that is free from risk of Maintenance free.The operating method for the structure that the present invention uses is：1. respectively by two
Push plate coupling bar 21 (shown in Figure 13) screws in the two-phase of die casting machine mandril gusset piece across movable die plate of die casting machine, left end threaded portion
It answers in screw hole；2. die hoisting slowly declines during installation, when the phase of the right end alignment die bottom plate 30 of two push plate coupling bars 21
During Ying Erkong drive movable die plate of die casting machine right lateral against, then manipulate liftout tank top plate stretching, make connection thereon two push plates connection
Extension bar 21 passes through corresponding two hole of mould ejection plate 28, and insertion opening pad is distinguished on the screw thread of 21 right end of push plate coupling bar after abutting
Piece 20 simultaneously screws locking nut 19.
When completing above-mentioned mold elder generation resetting-mechanism with die casting machine liftout tank after connection, whenever once being released, with
Die casting machine liftout tank is drawn back, and the push rod of mold also can be together towed back to therewith to initial position.Be worth comparison it is emphasised that this
The reliability of rigidity elder generation resetting-mechanism work reaches perfectly safe, and simple operation, of low cost.
Trumpet assembly reduces projected area of the casting in mold and running gate system again die joint to the maximum extent, and has
The most short pressure loss of molten metal flow is few, omits the advantages of cross gate.The aluminium alloy of melting is directly injected into cavity through sprue stream,
It is thus small with flow resistance, be conducive to elimination cavity depths and be not easy the gas discharged, smooth gas discharge, the mould features compact structure, mould
Tool bears the advantages that injection power is uniform.In view of 9 ingate breaking part of fixed mold is easily damaged and forming back taper causes directly to pour
Road is difficult to extract taper hole and makes the right convex deformation in Inner edge spider end caps right side and influence its flatness, special one " quick-changing type of close-fitting
Ingate mold insert 32 " is replaced with facilitating to repair.
Most how puzzlement trumpet assembly makes what is be smoothly broken at pressure chamber clout and sprue ingate after using die sinking
Problem.As shown in figure 14, I-I die joints during die sinking at cover half are first switched on, because having milled out three in sprue bush inner wall
Helicla flute (shown in Figure 15) causes dextrad pulling force caused by cold pressing chamber clout to be in flat to the left-hand package power of casting with core
Weighing apparatus state, ingate is pulled off simultaneously under the action of mould opening force, after die sinking, is again turned on the quick left lateral of injection punch head,
Indoor cast gate clout will be pressed to release and fall along helicla flute direction.A kind of ingate fracture mode is that sprue bush does not mill out
Helicla flute, as shown in figure 16, I-I die joints stop in being needed after being opened after die sinking, and cast gate clout is dragged out pouring with straight channel at this time
Muzzle and the right side for abutting against fixed mold can continue die sinking until II-II after shooting down cast gate waste material by external force such as hand hammers
Die joint is thoroughly opened.
As shown in figure 4, injection punch head is by the helicla flute cast gate of cold pressing chamber press-in die of the aluminium alloy of melting through die casting machine
Set 7, and mold cavity is injected through trumpet assembly straight channel, it is molded after supercharging (mold is made to solidify under high pressure), cooling.I-I points
Type face is opened therewith, and under the twisting force of three in helicla flute sprue bush 7 helicla flute, casing casting exists with cast gate clout
It is realized at ingate and breaks separation by force, the clout stayed in helicla flute sprue bush 7 will be again started up injection punch head and be shot down；After
Continuous die sinking, mold II-II die joints are opened, since shape sliding block 6 is located at dynamic model, and the shape sliding block 6 of generation package power into
Type part is deeply embedded between two flange of casing, and the parting to avoid II-II die joints and shape sliding block 6, which is carried out at the same time, to be caused
It must be initial to work as dynamic model there are 2mm gaps along core pulling direction between the inclined hole of burn failure, inclined guide pillar 4 and shape sliding block 6
After the distance of 2/sin25 ° of parting=4.73mm, the inclined hole of shape sliding block 6 starts to contact with inclined guide pillar 4, then starts core pulling and moves
Make, it is therefore an objective to which the core pulling action of shape sliding block 6 lags behind the main parting of fixed and moving mould, so as to which the inclined-plane for making shape sliding block 6 has an opportunity
First it is detached from the compressing on the inclined-plane of wedge block 2.Inclined hole is relied on, shape sliding block 6 makees slanting core pulling campaign along inclined guide pillar 4, works as shape
Core pulling campaign terminates when sliding block 6 is detached from inclined guide pillar 4.At this point, the profiled section of 6 forepart of shape sliding block also has disengaged from casing casting.After
It is continuous to mold on earth, because the piston rod of die casting machine ejection cylinder is rigidly connected by push plate coupling bar 21 with mold,
After casing casting is ejected, driven mold push plate is retracted into original position when ejection cylinder is retracted, so that mandril obtains first reset and (avoids
Shape sliding block 6 bumps against with not yet exiting 8 outer rim push rods 26 of interference region during molding).After this, dynamic model moves forward as usual
Molding, shape sliding block 6 is also along 4 oblique movement of inclined guide pillar, when mold main parting line reliably closes tight, the inclined-plane of shape sliding block 6
Also it is locked by the inclined-plane of wedge block 2, two shape sliding blocks 6 also correctly coincide by the slot of wire cutting at this moment, to ensure by two
The cavity (i.e. cabinet form) that side shape sliding block 6 forms does not misplace, as shown in Figure 17 and Figure 18.Repeating aforesaid operations can enter
Subsequent cycle.
A kind of two-flange shaft flow fan casing compression mod provided by the invention has the characteristics that：
(1) simply, helicla flute sprue bush 7 as vital part is simple in structure, twists off effect for mould structure (shown in Fig. 4)
Excellent, manufacture and replacement are all extremely convenient；
(2) the ingate breaking part close-fitting one " quick-changing type ingate mold insert 32 " of fixed mold 9, to facilitate fixed mold 9
Ingate breaking part quickly repair replacement when being damaged and forming back taper；
(3) as a result of trumpet assembly, dense structure's degree is high at casing Inner edge bearing chambers.Bearing chamber is that melt arrives first
Up to place, and directly bear before solidification the effect of supercharging, the defects of being not in stomata after turning, pitch-row dimensionally stable, casting
Consistency is good；
(4) go cast gate relatively easy.Cast gate only need to be prescinded on lathe with soft pawl clamping；
(5) waste material is few.Except normal cast gate jacking cake, the total weight extremely light (only 30 of trumpet assembly clout and overflow waste material
Gram)；
(6) casing consistency is high, appearance zero defect, and the working parts service life such as sliding block, core is long；
Wire cutting cutting line is cut as shown in Figure 18 again after 6 overall processing of (7) two shape sliding block, in two pieces engaging portion
60 ° of the embedded positioning of convex-concave is formed, two pieces shape sliding block 6 correctly coincide by the slot of cutting during to mold, it is ensured that by
The cavity (i.e. cabinet form) that both sides shape sliding block 6 forms does not misplace.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (10)
1. a kind of two-flange shaft flow fan casing compression mod, which is characterized in that including cover half fixed plate, helicla flute sprue bush, limit
Position guide post, solid plate, wedge block, inclined guide pillar, fixed mold, quick-changing type ingate mold insert, coulisse, dynamic mould core, shape are slided
Block, dynamic model cover board, release link, ejector pin retaining plate, push plate, cushion block and bottom plate；
When cover half is installed：Four limiting guide posts are installed in the cover half fixed plate；Mounting guide sleeve on the solid plate；It is described
The helicla flute sprue bush is pressed into cover half fixed plate；Be incorporated on the solid plate two pieces of wedge blocks, four described tiltedly lead
Column, the fixed mold and the quick-changing type ingate mold insert；The solid plate is directed at corresponding four limiting guide posts
After be inserted in the cover half fixed plate, screw on four nuts, cover half assembling terminates；
When dynamic model is installed：The supplying dynamic mould core in the coulisse, the interior supplying shape sliding block of two side chutes；Close institute
Dynamic model cover board is stated, knocks in dynamic model cover board and the coulisse described in two positioning pin connections into being integral；By all push rods and institute
It states release link and is inserted into the ejector pin retaining plate, cover the push plate, be integral release part connection using screw；The cunning
It is inserted into the corresponding hole of frid and has assembled the integral release part；The cushion block is put, covers the bottom plate, is locked tight
Gu after screw, dynamic model assembling terminates；
During molding：The shape sliding block is face-up, and the head of four inclined guide pillars of cover half is aligned the shape sliding block
After four slanting guide pillar holes are incorporated into, whole set of die assembling is completed.
2. a kind of two-flange shaft flow fan casing compression mod according to claim 1, which is characterized in that casing casting is released
When：The piston rod of the ejection cylinder of die casting machine pushes push plate coupling bar, and the push plate coupling bar pushes the push plate, the push plate
All push rods including the release link is pushed to release casing casting.
A kind of 3. two-flange shaft flow fan casing compression mod according to claim 1 or 2, which is characterized in that casing casting
Including Inner edge spider end caps and outer rim quadro frame；The center of the Inner edge spider end cap be bearing hole slot, the bearing
The periphery of hole slot forms Inner edge slots, and the periphery of the Inner edge slot is connect by four connection muscle with the outer rim quadro frame, institute
It states and is equipped with border groove on former and later two sides of outer rim quadro frame.
4. a kind of two-flange shaft flow fan casing compression mod according to claim 3, which is characterized in that including bearing pass
Core, Inner edge push rod, connection muscle push rod and outer rim push rod；
When casing casting is released：The bearing hole core is connected on the bearing hole slot；The Inner edge push rod is connected to described
On Inner edge slots；The connection muscle push rod is connected on four connection muscle；The outer rim push rod is connected on the border groove.
A kind of 5. two-flange shaft flow fan casing compression mod according to claim 3, which is characterized in that four connections
Muscle is respectively three diamond shape spokes and a U-shaped outlet muscle.
6. a kind of two-flange shaft flow fan casing compression mod according to claim 1, which is characterized in that the helicla flute pours
The inner wall of muzzle mills out three helicla flutes.
A kind of 7. two-flange shaft flow fan casing compression mod according to claim 1, which is characterized in that two shapes
Sliding block is located by connecting using convex-concave is embedded.
8. a kind of two-flange shaft flow fan casing compression mod according to claim 1, which is characterized in that the inclined guide pillar and
Along core pulling direction, there are gaps between the slanting guide pillar hole of the shape sliding block.
9. a kind of two-flange shaft flow fan casing compression mod according to claim 1, which is characterized in that before molding：Die casting
The piston rod of the ejection cylinder of machine is retracted in advance, with retracting for the piston rod, is drawn with its rigidly connected push plate coupling bar
The ejector pin retaining plate is moved, the ejector pin retaining plate drives all push rods to retreat to original position.
10. a kind of two-flange shaft flow fan casing compression mod according to claim 1, which is characterized in that at the end of molding：
The right side of release link on the ejector pin retaining plate and the big plane in a left side of the solid plate are coincide, to ensure all recovery rods
On earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810151591.0A CN108188375B (en) | 2018-02-14 | 2018-02-14 | Double-flange axial flow die casting mould for fan casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810151591.0A CN108188375B (en) | 2018-02-14 | 2018-02-14 | Double-flange axial flow die casting mould for fan casing |
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| CN108188375A true CN108188375A (en) | 2018-06-22 |
| CN108188375B CN108188375B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810151591.0A Active CN108188375B (en) | 2018-02-14 | 2018-02-14 | Double-flange axial flow die casting mould for fan casing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856674A (en) * | 2018-09-10 | 2018-11-23 | 苏州工业职业技术学院 | The big package power casing compression mod of thin-walled push-off device again |
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| CN108856674B (en) * | 2018-09-10 | 2024-02-02 | 苏州工业职业技术学院 | Thin-wall large-packing-force casing die casting mould re-pushing device |
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| Publication number | Publication date |
|---|---|
| CN108188375B (en) | 2024-02-02 |
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