CN1538888A - Molten solution feeder - Google Patents

Molten solution feeder Download PDF

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Publication number
CN1538888A
CN1538888A CNA028155084A CN02815508A CN1538888A CN 1538888 A CN1538888 A CN 1538888A CN A028155084 A CNA028155084 A CN A028155084A CN 02815508 A CN02815508 A CN 02815508A CN 1538888 A CN1538888 A CN 1538888A
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CN
China
Prior art keywords
suction path
molten metal
valve body
communicated
piston
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
Application number
CNA028155084A
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Chinese (zh)
Other versions
CN1277639C (en
Inventor
中川贤一
朗
土田二朗
重
山口宏
三浦满重
船越淳
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Kubota Corp
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Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2001170990A external-priority patent/JP2002361390A/en
Priority claimed from JP2001229873A external-priority patent/JP2003039159A/en
Priority claimed from JP2002121225A external-priority patent/JP2003311393A/en
Application filed by Kubota Corp filed Critical Kubota Corp
Publication of CN1538888A publication Critical patent/CN1538888A/en
Application granted granted Critical
Publication of CN1277639C publication Critical patent/CN1277639C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
    • B22D39/023—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume using a displacement member
    • 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
    • B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
    • B22D17/10—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with horizontal press motion
    • 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
    • B22D17/30—Accessories for supplying molten metal, e.g. in rations

Abstract

In order to feed molten metal to a casting mold with precision while preventing introduction of metal oxide into a cylinder casing, an entire valve box 19 is disposed below a liquid level of the molten metal C inside a molten metal furnace D. A discharge duct 23 is upwardly open at a lower end of a valve-element moving space 24. An inlet duct 22 is open to the valve-element moving space 24 at a position higher than the discharge duct 23. Around an opening of the discharge duct 23 to the valve-element moving space 24, there is formed a lower receiving seat 29 in the form of a ring. A valve element 21 includes a lower contact portion 31 which comes into annular contact with the lower receiving seat 29 in association with a lowering movement of the valve element 21. The molten metal C inside the molten metal furnace D is introduced into a cylinder casing 4 by moving the valve element 21 to an inlet position where the lower contact portion 31 comes into the annular contact with the lower receiving seat 29 thereby to block communication between the discharge duct 23 and an inlet/outlet duct 8.

Description

The feedway of molten metal
Technical field
The present invention relates to the feedway of molten metal.
In more detail, it is supply technology about molten metal, be provided with: allow the interior piston of cylinder block move towards a direction, can be drawn into the molten metal in the motlten metal stove in the cylinder block by the suction path, and, allow piston move to another way, can be by the suction path the pump of the discharge of the molten metal in the cylinder block; The molten metal of discharging by the suction path is supplied with the supply passageway of casting device; And transfer valve, this transfer valve has and can suck the valve body that moves freely operation between position and the drain position, above-mentioned suction position is by suction path and motlten metal stove being communicated with, cutting off the position that is communicated with of suction path and supply passageway, and above-mentioned drain position is by suction path and supply passageway be communicated with, cut off the position that the suction path is communicated with the motlten metal stove; By means of the move operation of the piston under the state that valve body is moved to suck the position towards a direction, molten metal in the motlten metal stove is drawn in the cylinder block, by means of making valve body move to piston move operation to another way under the state of drain position, the molten metal in the cylinder block is discharged in the supply passageway.
Background technology
Below, the conventional art of the feedway of above-mentioned molten metal is described.
Figure 15 shows the feedway of molten metal in the past, comprises pump 1, drive unit 7, supply passageway 2 and transfer valve 3.Said pump 1 allows and is communicated with in the suction path 8 of molten metal (being designated hereinafter simply as motlten metal) C and the cylinder block 4, piston 5 in the cylinder block 4 is moved upward, motlten metal C in the motlten metal stove D can be drawn in the cylinder block 4 by suction path 8, and, allow piston 5 move, can discharge the motlten metal C in the cylinder block 4 by suction path 8 towards the below.Above-mentioned drive unit 7 is air pressure cylinder of moving of driven plunger 5 etc.Above-mentioned supply passageway 2 is supplied with mold B1 to the motlten metal C that discharges by suction path 8.Above-mentioned transfer valve 3 is equipped with in valve casing 19 and can slides up and down move operation valve body 21 freely between suction position and drain position, above-mentioned valve casing 19 forms by such mode: make the suction path 22 that is communicated with motlten metal stove D, the drain passageway 23 and the suction path 8 that are communicated with supply passageway 2 are opened on valve body mobile space 24, above-mentioned suction position is by suction path 22 is communicated with suction path 8, cut off the position that is communicated with of drain passageway 23 and suction path 8, above-mentioned drain position is being communicated with by drain passageway 23 and suction path 8, cut off to suck the position that is communicated with of path 22 and suction path 8.Shown in Figure 15 (a), by means of valve rod operation tool 16 operating valve levers 20 that use solenoid etc., valve body 21 is slided move to piston 5 move operation upward under the state that sucks the position, motlten metal C in the motlten metal stove D is drawn in the cylinder block 4, shown in Figure 15 (b), by means of state piston 5 move operation downwards down that valve body 21 is slided move to drain position, 4 interior motlten metal C are discharged in the supply passageway 2 with cylinder block.
And, when valve body 21 slides in valve casing 19 when mobile, under the situation of the high-temperature molten metal C that handle and oxygen etc. reacts easily, even on the sliding part 10 of valve body 21 and its valve casing 19, seal member etc. is set especially, metal oxides etc. still can be easy to nip between the sliding surface, the thing that causes valve body successfully not move takes place, therefore, adopted this class seal member has not been set, gap to a certain degree is set between sliding surface, make metal oxide etc. be not easy to nip, the measure that allows valve body 21 slide and to move.
Therefore, there is following shortcoming: when carrying out repeatedly the supply operation of motlten metal C supply mold B1, shown in Figure 15 (a), valve body 21 slips are moved under the state that sucks the position, allow piston 5 move up, when sucking the motlten metal C in the motlten metal stove D in the cylinder block 4, the gap of motlten metal C by sliding part 100 that remains in the supply passageway 2 is drawn into cylinder block 4 one sides, shown in Figure 15 (b), valve body 21 slips are moved under the state of drain position, allow piston 5 move down, when being discharged to the motlten metal C in the cylinder block 4 in the supply passageway 2, the gap of motlten metal C in the cylinder block 4 by sliding part 100 is discharged to motlten metal stove D one side, at this moment, can not supplies with mold B1 to motlten metal C with good precision corresponding to the amount of the shift motion of piston 5.
In other words, because when supplying with operation repeatedly, be that the part of the motlten metal C that discharges will supply with operation last time time of liquid level position P with assigned altitute remains in the supply passageway 2 be prerequisite, in order to carry out the supply operation of next time, thereby, motlten metal C corresponding to the amount of the shift motion of piston 5 is supplied with after the mold B1, and the part of the motlten metal C that discharges during this supply operation must remain in the supply passageway 2 by the residual identical liquid level position P of motlten metal C when supplying with operation with last time.
But, when the suction of the motlten metal C shown in Figure 15 (a), a part that remains in the motlten metal C in the supply passageway 2 is inhaled into cylinder block 4 one sides by the gap of valve body 21 and the sliding part 100 of valve casing 19, when the liquid level position that remains in the motlten metal C in the supply passageway 2 is lower than the liquid level position P of assigned altitute, when supplying with operation next time, even will be discharged in the supply passageway 2, differ amount corresponding to these liquid level positions difference in height each other to the amount of mold B1 effective supply corresponding to the motlten metal C of the amount of the shift motion of piston 5.In addition, when the discharge of the motlten metal C shown in Figure 15 (b), the part of motlten metal C is passed through the gap of sliding part 100 when motlten metal stove D one side is discharged in cylinder block 4, can not be discharged to supply passageway 2 to motlten metal C corresponding to the amount of the shift motion of piston 5, this be since in fact the quantity not sufficient of supplying with to mold B1 cause.
Further, because valve casing 19 all is arranged under the liquid level of the motlten metal C in the motlten metal stove D, therefore, the motlten metal C that enters in the valve casing 19 is difficult to oxidation, and the metal oxide that might nip between the sliding surface reduces, and this is favourable.But, forming in the bottom of valve casing 19 owing to suck path 22, and then also can bring such shortcoming, the metal oxide that is easy to be trapped in motlten metal stove D bottom sucks in the cylinder block 4.
The present invention In view of the foregoing proposes, and its objective is to prevent the suction of metal oxide in cylinder block, can supply with mold to the molten metal corresponding to the amount of piston shift motion with high accuracy.
In addition, for the little motlten metal of possibility that metal oxide is mixed is drawn in the cylinder block, high position in the motlten metal stove is provided with the suction inlet that sucks path, it is opened in the motlten metal, at this moment, must suck motlten metal to be connected to by other approach and suck on the path with pipeline, with the inlet of this pipeline as suction inlet, be arranged on the place, high position in the motlten metal stove, this can cause the shortcoming of structure complicated again.
Therefore, in case adopt other approach motlten metal suck be connected to pipeline suck on the path, with the inlet of this pipeline as suction inlet and when being arranged on high position in the motlten metal stove, for mainteinance repair etc., under the situation that feedway is promoted from the motlten metal stove, can cause such shortcoming: very difficult handle enters in the valve casing or the motlten metal in the supply passageway is discharged in the motlten metal stove.
The present invention also In view of the foregoing proposes, its objective is, the little molten metal of possibility that metal oxide mixes can be drawn in the cylinder block with simple structure, simultaneously, under the situation that feedway is promoted from the motlten metal stove, be easy to be discharged in the motlten metal stove entering valve casing molten metal interior or that supply passageway is interior.
In addition, the feeding molten metal device has flow channel switching valve, this flow channel switching valve adopts following formation: for example valve body and its action bars as operating member are connected as one, simultaneously, be provided with the patchhole that valve body and action bars easy on and off are inserted movably, in the motlten metal of the sub-motlten metal stove of the upper end open of this patchhole, the bottom of this patchhole forms in valve body moves with the hole, valve body is inserted valve body to be moved in the hole, make action bars outstanding,, valve body is changed with respect to the contact condition that valve body moves with the inner surface in hole by the operation that moves up and down of action bars from the upper end of patchhole, whereby, can switch the stream of motlten metal.Perhaps the feeding molten metal device has the motlten metal pump, this motlten metal pump adopts following formation: will connect as one as piston and its action bars of operating member, simultaneously, be provided with the patchhole that piston and action bars easy on and off are inserted movably, the upper end open of this patchhole is in the motlten metal of motlten metal stove, the bottom of this patchhole forms in piston moves with the hole, piston is inserted piston to be moved in the hole, make action bars outstanding from the upper end of patchhole, the operation that moves up and down by action bars, piston is changed with respect to the contact condition that piston moves with the inner surface in hole, whereby, can drive motlten metal along the inside and outside suction ground that piston moves with the hole.Under above-mentioned both of these case, utilize this flow channel switching valve or motlten metal pump, action bars is inserted in the hole, between action bars and patchhole, form a succession of gap along the lower end of action bars and the upper end of patchhole, therefore, near the slags such as metal oxide that generate the motlten metal liquid level of motlten metal stove precipitate along the gap between action bars and the patchhole, enter near the operating member, be easy to adhere to, be deposited in the patchhole inner surface, as a result, the shortcoming of bringing is to be difficult to the contact condition of contact condition for wishing of the relative patchhole inner surface of long term maintenance operating member.
The present invention In view of the foregoing proposes, and its objective is, the contact condition of contact condition that can the relative patchhole inner surface of long term maintenance operating member for wishing.
Summary of the invention
The invention of claim 1 record is a kind of feedway of molten metal, it constitutes, be provided with: be communicated with in the suction path of molten metal and the cylinder block, by allowing the piston in the above-mentioned cylinder block move towards a direction, through above-mentioned suction path the molten metal in the motlten metal stove is drawn in the above-mentioned cylinder block, and by allowing above-mentioned piston move to another way, the above-mentioned suction path of process is the pump of the discharge of the molten metal in the above-mentioned cylinder block; The molten metal of discharging by above-mentioned suction path is supplied with the supply passageway of mold; And transfer valve, this transfer valve is in that be equipped with on the valve casing can be at the valve body that sucks easy on and off move operation between position and the drain position, above-mentioned valve casing is the suction path that is communicated with above-mentioned motlten metal stove, drain passageway that is communicated with above-mentioned supply passageway and above-mentioned suction passage opening form in the valve body mobile space, above-mentioned suction position is by above-mentioned suction path is communicated with above-mentioned suction path, cut off the position that is communicated with of above-mentioned drain passageway and above-mentioned suction path, above-mentioned drain position is that above-mentioned drain passageway is communicated with above-mentioned suction path, cut off the position that is communicated with of above-mentioned suction path and above-mentioned suction path, by means of making above-mentioned valve body move to above-mentioned piston under the state of above-mentioned suction position towards the move operation of a direction, molten metal in the above-mentioned motlten metal stove is drawn in the above-mentioned cylinder block, by means of making above-mentioned valve body move to above-mentioned piston move operation to another way under the state of above-mentioned drain position, molten metal in the above-mentioned cylinder block is discharged in the above-mentioned supply passageway, above-mentioned valve casing all is arranged under the liquid level of the molten metal in the above-mentioned motlten metal stove, above-mentioned drain passageway formed make the lower end of its upward opening in above-mentioned valve body mobile space, simultaneously, above-mentioned suction path formed make it be opened on above-mentioned valve body mobile space in the position that is higher than above-mentioned drain passageway, around the peristome of above-mentioned valve body mobile space, form the lower support seat at above-mentioned drain passageway with ring-type, simultaneously, on this valve body, form along with the decline of above-mentioned valve body is moved, the bottom contact site that touches with ring-type and above-mentioned lower support seated connection, touch with ring-type and above-mentioned lower support seated connection by above-mentioned bottom contact site, above-mentioned valve body is moved to the suction position that is communicated with that cuts off above-mentioned drain passageway and above-mentioned suction path, and the molten metal interior above-mentioned motlten metal stove is drawn in the above-mentioned cylinder block.
Effect and effect
Valve body slides unlike conventional art and moves to the suction position that is communicated with that cuts off drain passageway and suction path, but on valve casing, be formed with the drain passageway of upward opening in the lower end of valve body mobile space, and around the peristome of this drain passageway, form the lower support seat with ring-type, simultaneously, on this valve body, form along with the decline of valve body is moved, the bottom contact site that touches with ring-type and lower support seated connection, touch with ring-type and lower support seated connection by the bottom contact site, valve body is moved to the suction position that is communicated with that cuts off drain passageway and suction path, by means of the move operation of piston towards a direction, molten metal in the motlten metal stove is drawn in the cylinder block, therefore, can cut off being communicated with of drain passageway and suction path reliably, when being drawn into the molten metal in the motlten metal stove in the cylinder block, can prevent from effectively the molten metal that remains in supply passageway is drawn into cylinder block side.
In addition, because valve casing all is arranged under the liquid level of the molten metal in the motlten metal stove, therefore, can prevent to enter the oxidation of the molten metal in the valve casing, and, owing to being formed, drain passageway makes the lower end of its upward opening in the valve body mobile space, simultaneously, form and make it be opened on the valve body mobile space in the position that is higher than drain passageway sucking path, therefore, the metal oxide that difficult handle is trapped in the motlten metal furnace bottom is drawn in the cylinder block.
And then when being drawn into the molten metal in the motlten metal stove in the cylinder block, the metal oxide that difficult handle is trapped in the motlten metal furnace bottom is drawn in the cylinder block, simultaneously, also is difficult for the molten metal that remains in supply passageway is drawn into cylinder block one side.Thereby, can prevent the suction of metal oxide in cylinder block, can supply with mold corresponding to the molten metal of the amount of piston shift motion with good precision handle.
The invention of claim 2 record, it constitutes, above-mentioned suction path forms the upper end that is opened on above-mentioned valve body mobile space towards the below, around the peristome of above-mentioned suction path, form the upper support seat with ring-type, simultaneously, on this valve body, form along with the rising of above-mentioned valve body is moved, the top contact site that touches with ring-type and above-mentioned upper support seated connection, touch with ring-type and above-mentioned upper support seated connection by above-mentioned top contact site, above-mentioned valve body is moved to the drain position that is communicated with that cuts off above-mentioned suction path and above-mentioned suction path, and the molten metal interior above-mentioned cylinder block is discharged to above-mentioned supply passageway.
Effect and effect
Valve body slides unlike conventional art and moves to the drain position that is communicated with that cut off to suck path and suction path, but on valve casing, be formed with the suction path of the upper end that is opened on the valve body mobile space downwards, and form the upper support seat with ring-type on every side at this peristome that sucks path, simultaneously, on this valve body, form along with the rising of valve body is moved, the top contact site that touches with ring-type and upper support seated connection, touch with ring-type and upper support seated connection by the top contact site, valve body is moved to the drain position that is communicated with that cut off to suck path and suction path, by means of piston move operation to another way, molten metal in the cylinder block is discharged to supply passageway, therefore, can cut off reliably and suck being communicated with of path and suction path, when the molten metal in the cylinder block is discharged to supply passageway, can prevent from effectively the molten metal in the cylinder block is discharged to motlten metal stove one side.
And then, when the molten metal in the cylinder block is discharged to supply passageway,, can supply with mold corresponding to the molten metal of the amount of piston shift motion with good precision handle owing to be difficult for the molten metal in the cylinder block is discharged to motlten metal stove one side.
The invention of claim 3 record is a kind of feedway of molten metal, it constitutes, be provided with: be communicated with in the suction path of molten metal and the cylinder block, by allowing the piston in the above-mentioned cylinder block move towards a direction, through above-mentioned suction path the molten metal in the motlten metal stove is drawn in the above-mentioned cylinder block, and, by allowing above-mentioned piston move to another way, the pump that the above-mentioned suction path of process is discharged the molten metal in the above-mentioned cylinder block, also be provided with the supply passageway of the molten metal of discharging by above-mentioned suction path being supplied with casting device, also be provided with transfer valve, this transfer valve is in that be equipped with on the valve casing can be at the valve body that sucks easy on and off move operation between position and the drain position, above-mentioned valve casing makes the suction path that is communicated with above-mentioned motlten metal stove, drain passageway that is communicated with above-mentioned supply passageway and above-mentioned suction passage opening are in the valve body mobile space, above-mentioned suction position is by above-mentioned suction path is communicated with above-mentioned suction path, cut off the position that is communicated with of above-mentioned drain passageway and above-mentioned suction path, above-mentioned drain position is that above-mentioned drain passageway is communicated with above-mentioned suction path, cut off the position that is communicated with of above-mentioned suction path and above-mentioned suction path, the suction inlet of above-mentioned suction path is opened in the molten metal of above-mentioned motlten metal stove, by means of making above-mentioned valve body move to above-mentioned piston under the state of above-mentioned suction position towards the move operation of a direction, molten metal in the above-mentioned motlten metal stove is drawn in the above-mentioned cylinder block, by means of making above-mentioned valve body move to above-mentioned piston move operation to another way under the state of above-mentioned drain position, molten metal in the above-mentioned cylinder block is discharged in the above-mentioned supply passageway, above-mentioned suction path connects ground and forms on above-mentioned valve casing, and be opened on above-mentioned valve body mobile space in the position that is higher than above-mentioned drain passageway, be provided with on the base component of above-mentioned cylinder block, formation can be embedded with the fitting portion that the supply passageway that is used to form above-mentioned supply passageway forms parts with freely plugging from the top, above-mentioned drain passageway is communicated with the inboard of above-mentioned fitting portion, under the state that above-mentioned supply passageway formation parts is embedded in the above-mentioned fitting portion, above-mentioned drain passageway is communicated with above-mentioned supply passageway, bottom at above-mentioned fitting portion, connect ground in the position that is lower than above-mentioned drain passageway and form the communication paths that can be communicated with above-mentioned motlten metal stove, above-mentioned supply passageway form be provided with integratedly on the parts along with above-mentioned supply passageway form parts with respect to above-mentioned fitting portion carry out embedded, the plug members that above-mentioned communication paths is sealed.
Effect and effect
On above-mentioned valve casing, be formed with the suction path with connecting, make this suction path be opened on the valve body mobile space in the position that is higher than drain passageway, therefore, do not need to resemble the conventional art the inhalant pipeline of motlten metal to be connected to and suck on the path with other approach, but the suction inlet that sucks path can be set, its high position in the motlten metal stove is opened in the molten metal.
And, be provided with on the base component of cylinder block, formation can be embedded with the fitting portion that the supply passageway that is used to form supply passageway forms parts with freely plugging from the top, drain passageway is communicated with the inboard of fitting portion, under the state that supply passageway formation parts is embedded in the fitting portion, drain passageway is communicated with supply passageway, therefore, promoting from the motlten metal stove under the situation of feedway, extract supply passageway upward from fitting portion and form parts, whereby, can form that the molten metal in the formed supply passageway is discharged in the motlten metal stove on parts entering this supply passageway, simultaneously, being communicated in the motlten metal stove by drain passageway in the valve casing, can be discharged to the molten metal that enters in the valve casing in the motlten metal stove by drain passageway.
In addition, bottom at fitting portion, connect ground in the position that is lower than drain passageway and form the communication paths that can be communicated with the motlten metal stove, on supply passageway forms parts, be provided with integratedly along with supply passageway form parts with respect to fitting portion carry out embedded, the plug members that communication paths is sealed.Therefore, form parts by extract supply passageway upward from fitting portion, can remove the sealing of communication paths, the bottom of fitting portion is communicated in the motlten metal stove by communication paths, when the motlten metal stove promotes cylinder block, can reduce molten metal and remain in possibility in the fitting portion.
And then, can be used in and connect formation suction path in ground on the valve casing, make this suction path be opened on the simple structure of valve body mobile space in the position that is higher than drain passageway, the little molten metal of possibility of sneaking into metal oxide is sucked in the cylinder block, simultaneously, promoting under the situation of feedway, can be easy to the molten metal that enters in the valve casing or in the supply passageway to be discharged in the motlten metal stove from the motlten metal stove.
The invention of claim 4 record is a kind of feedway of molten metal, it constitutes, be provided with: be communicated with in the suction path of molten metal and the cylinder block, by allowing the piston in the above-mentioned cylinder block move towards a direction, through above-mentioned suction path the molten metal in the motlten metal stove is drawn in the above-mentioned cylinder block, and, by allowing above-mentioned piston move to another way, the pump that the above-mentioned suction path of process is discharged the molten metal in the above-mentioned cylinder block, also be provided with the supply passageway of the molten metal of discharging by above-mentioned suction path being supplied with casting device, also be provided with transfer valve, this transfer valve is in that be equipped with on the valve casing can be at the valve body that sucks easy on and off move operation between position and the drain position, above-mentioned valve casing makes the suction path that is communicated with above-mentioned motlten metal stove, drain passageway that is communicated with above-mentioned supply passageway and above-mentioned suction passage opening are in the valve body mobile space, above-mentioned suction position is by above-mentioned suction path is communicated with above-mentioned suction path, cut off the position that is communicated with of above-mentioned drain passageway and above-mentioned suction path, above-mentioned drain position is that above-mentioned drain passageway is communicated with above-mentioned suction path, cut off the position that is communicated with of above-mentioned suction path and above-mentioned suction path, the suction inlet of above-mentioned suction path is opened in the molten metal of above-mentioned motlten metal stove, by means of making above-mentioned valve body move to above-mentioned piston under the state of above-mentioned suction position towards the move operation of a direction, molten metal in the above-mentioned motlten metal stove is drawn in the above-mentioned cylinder block, by means of making above-mentioned valve body move to above-mentioned piston move operation to another way under the state of above-mentioned drain position, molten metal in the above-mentioned cylinder block is discharged in the above-mentioned supply passageway, above-mentioned suction path connects ground and forms on above-mentioned valve casing, and be opened on above-mentioned valve body mobile space in the position that is higher than above-mentioned drain passageway, be provided with on the base component of above-mentioned cylinder block, formation can be embedded with the fitting portion of above-mentioned valve casing with freely plugging from the top, above-mentioned supply passageway is communicated with the inboard of above-mentioned fitting portion, under the state that above-mentioned valve casing is embedded in the above-mentioned fitting portion, above-mentioned supply passageway is communicated with above-mentioned drain passageway, bottom at above-mentioned fitting portion, connect ground in the position that is lower than above-mentioned supply passageway and form the communication paths that can be communicated with above-mentioned motlten metal stove, on above-mentioned valve casing, be provided with integratedly along with above-mentioned valve casing with respect to above-mentioned fitting portion carry out embedded, the plug members that above-mentioned communication paths is sealed.
Effect and effect
On above-mentioned valve casing, be formed with the suction path with connecting, make this suction path be opened on the valve body mobile space in the position that is higher than drain passageway, therefore, do not need to resemble the conventional art and connect the inhalant pipeline of motlten metals with other approach, but the suction inlet that sucks path can be set, its high position in the motlten metal stove is opened in the molten metal.
And, be provided with on the base component of cylinder block, formation can be embedded with the fitting portion of valve casing with freely plugging from the top, supply passageway is communicated with the inboard of fitting portion, under the state that valve casing is embedded in the fitting portion, supply passageway is communicated with drain passageway, therefore, promoting under the situation of feedway, extract valve casing upward from fitting portion, whereby from the motlten metal stove, can be discharged to the molten metal that enters in this valve casing in the motlten metal stove by drain passageway, simultaneously, in fitting portion, supply passageway is communicated in the motlten metal stove, can be discharged to the molten metal that enters in the supply passageway in the motlten metal stove.
In addition,, connect ground in the position that is lower than supply passageway and form the communication paths that can be communicated with the motlten metal stove in the bottom of fitting portion, on valve casing, be provided with integratedly along with valve casing with respect to fitting portion carry out embedded, the plug members that communication paths is sealed.Therefore, by extracting valve casing upward from fitting portion, can remove the sealing of communication paths, the bottom of fitting portion is communicated in the motlten metal stove by communication paths, when the motlten metal stove promotes cylinder block, can reduce molten metal and remain in possibility in the fitting portion.
And then, can be used in and connect formation suction path in ground on the valve casing, make this suction path be opened on the simple structure of valve body mobile space in the position that is higher than drain passageway, the molten metal that the possibility of pick-up metal oxide is little sucks in the cylinder block, simultaneously, promoting under the situation of feedway, can be easy to the molten metal that enters in the valve casing or in the supply passageway to be discharged in the motlten metal stove from the motlten metal stove.
The characteristic feature of an invention of claim 5 record is, be arranged to make it to form above-mentioned communication paths along the plug direction up/down perforation ground that above-mentioned supply passageway forms parts or above-mentioned valve casing, along with above-mentioned supply passageway forms embedded with respect to above-mentioned fitting portion of parts or above-mentioned valve casing, above-mentioned plug members is fitted in the above-mentioned communication paths.
Effect and effect
Operation by means of embedded supply passageway formation parts of relative fitting portion or valve casing from the top, also can be fitted to plug members in the communication paths, seal the peristome of this communication paths, by means of the operation of extracting supply passageway formation parts or valve casing from fitting portion upward, also can extract plug members, remove the sealing of communication paths from communication paths.
And then, by means of relative fitting portion towards upper and lower to a direction plug supply passageway form the operation of parts or valve casing, can be easy to seal communication paths or remove its sealing.
The invention of claim 6 record is a kind of feedway of molten metal, operating member and its action bars are connected as one, simultaneously, be provided with the patchhole that above-mentioned operating member and aforesaid operations bar easy on and off are inserted movably, the upper end open of this patchhole is in the molten metal of motlten metal stove, be arranged to make it to insert above-mentioned inserting in the hole above-mentioned operating member with the aforesaid operations bar, make the aforesaid operations bar outstanding from the upper end of above-mentioned patchhole, the operation that moves up and down by the aforesaid operations bar, above-mentioned operating member is moved up and down, freely change contact condition with respect to this patchhole inner surface, peripheral part at the aforesaid operations bar is provided with scraper plate, this scraper plate will be sealed between aforesaid operations bar and the above-mentioned patchhole, simultaneously, along with the operation that moves up and down of aforesaid operations bar, with respect to the roughly full week slip in edge of inner peripheral surface of patchhole.
Effect and effect
Because the peripheral part at action bars is provided with scraper plate, this scraper plate will be sealed between action bars and the patchhole, thereby near the slags such as metal oxide that generated the molten metal liquid level of motlten metal stove are difficult for invading near the operating member.In addition, because this scraper plate is along with the operation that moves up and down of action bars, inner peripheral surface with respect to patchhole roughly slides along full week, therefore, even invade between action bars and the patchhole and form under the state of piling up on attached to the patchhole inner peripheral surface at slag, also can strike off slag, the long term maintenance operating member is desirable state with respect to the contact condition of patchhole.
The characteristic feature of an invention of claim 7 record is, above-mentioned scraper plate is arranged in above-mentioned operating member is moved under the state of upper end of the scope of moving up and down, and moves near the upper end of above-mentioned patchhole.
Effect and effect
Because operating member is moved under the state of upper end of the scope of moving up and down, scraper plate moves near the upper end of patchhole, therefore, can turn back to the slag that strikes off with scraper plate in the molten metal of motlten metal stove energetically, more effectively the long term maintenance operating member is desirable state with respect to the contact condition of patchhole.
The characteristic feature of an invention of claim 8 record is, when constituting above-mentioned scraper plate, at aforesaid operations bar peripheral part the ring component that pottery is made is installed, this ring component is to form C shape by a position disjunction with circumferencial direction, and be mounted to the state that prevents that it from extracting, making ring component under the state of radially inner side strain, this ring component is embedded into above-mentioned inserting in the hole.
Effect and effect
Owing to the ring component that a position according to the disjunction circumferencial direction is formed C shape is mounted to the state that can prevent that it from extracting from the action bars peripheral part, and make this ring component under the state of radially inner side strain, this ring component is embedded into inserts in the hole, therefore, can be under the effect of elastic restoring force with respect to the inner peripheral surface crimp rings parts of patchhole, dwindle the gap in week in ring component and the patchhole, prevent the intrusion of slag effectively, more effectively strike off slag to operating member.
In addition, because ring component forms with pottery, so, be difficult for to produce under the situation that ring component forms with metal, along with all relative slip caused " it is deadlocked to generate heat " or " phenomenon bite " in ring component and the patchhole, can can for a long time, more effectively strike off slag with respect to the inner peripheral surface crimp rings parts of patchhole under the effect of elastic restoring force.
The characteristic feature of an invention of claim 9 record is, move with the bottom that forms above-mentioned patchhole in the hole at above-mentioned valve body, utilize valve body to constitute above-mentioned operating member, this valve body is by the operation that moves up and down of aforesaid operations bar, move with inside, hole mobile up and down at above-mentioned valve body, change is moved the contact condition of using internal surface of hole with respect to valve body, whereby, switches the stream of molten metal.
Effect and effect
Adopt such structure owing to constitute the valve body of operating member, the valve body that this valve body is inserted into the bottom that is formed with patchhole moves with in the hole, make action bars outstanding from the upper end of patchhole, and, utilize the operation that moves up and down of action bars, the contact condition of using internal surface of hole is moved in change with respect to valve body, whereby, switch the stream of molten metal, peripheral part at the valve body action bars is provided with scraper plate, therefore, can the long term maintenance valve body be desirable state with respect to the contact condition that valve body moves with internal surface of hole, switch the stream of molten metal with good accuracy.
The characteristic feature of an invention of claim 10 record is, move with the bottom that forms above-mentioned patchhole in the hole at above-mentioned piston, utilize piston to constitute above-mentioned operating member, this piston is by the operation that moves up and down of aforesaid operations bar, move with inside, hole at above-mentioned piston and to slide up and down to move, change with respect to piston and move contact position, whereby with internal surface of hole, move with inside and outside the hole along above-mentioned piston, carry out the driving of suction molten metal.
Effect and effect
Adopt such structure owing to constitute the piston of operating member, the piston that this piston is inserted into the bottom that is formed with patchhole moves with in the hole, make action bars outstanding from the upper end of patchhole, and, utilize the operation that moves up and down of action bars, make piston in piston moves with the hole, slide up and down to move, change piston and move the contact position of using internal surface of hole with respect to piston, whereby, move with inside and outside the hole along piston, carry out the driving of suction molten metal, and, peripheral part at the piston operation bar is provided with scraper plate, therefore, can the long term maintenance piston be desirable position with respect to the contact position that piston moves with internal surface of hole, in other words, can the long term maintenance piston move the state that the inner surface with the hole slides and moves according to desirable stroke, move with inside and outside the hole, carry out the driving of suction molten metal with good accuracy along piston with respect to piston.
Description of drawings
Fig. 1 is the local section side view of the feedway of molten metal.
Fig. 2 (a) and (b) are local section side views of major part.
Fig. 3 (a) is the major part perspective view, (b) is the skiagraph of major part.
Fig. 4 (a) and (b) are local section side views of the major part of expression second form of implementation.
Fig. 5 (a) and (b) are local section side views of the major part of expression the 3rd form of implementation.
Fig. 6 (a) and (b) are local section side views of the major part of expression the 4th form of implementation.
Fig. 7 is the sectional drawing of the major part of the 4th form of implementation.
Fig. 8 is the perspective view of the major part of the 4th form of implementation.
Fig. 9 is the cutaway view of the major part of the 4th form of implementation.
Figure 10 (a) is the perspective view of the major part of expression the 6th form of implementation, (b) is the sectional drawing of the major part of expression the 6th form of implementation.
Figure 11 is the local section side view of the major part of expression the 7th form of implementation.
Figure 12 is the local section side view of the major part of the 7th form of implementation.
Figure 13 is the perspective view of the major part of expression the 8th form of implementation.
The (a) and (b) of Figure 14 are local section side views of the major part of expression the 9th form of implementation.
The (a) and (b) of Figure 15 are local section side views of expression conventional art.
The specific embodiment
Below, based on the represented form of implementation explanation the present invention of accompanying drawing.In addition, show identical or suitable part with the represented part of the symbol that example was identical in the past in the accompanying drawing.
First form of implementation
Fig. 1 shows and will supply with the feedway A of the mold B1 of casting device B as the magnesium alloy motlten metal C of molten metal one example.This feedway A is provided with motlten metal pump 1, motlten metal C is supplied with supply passageway 2 and the transfer valve 3 of mold B1, and this transfer valve 3 switches to the state that the motlten metal C in motlten metal stove D can attract by motlten metal pump 1 with stream and can be discharged to the motlten metal C that motlten metal pump 1 attracts state in the supply passageway 2.Above-mentioned feedway A can pass through supply passageway 2, and the motlten metal C that motlten metal pump 1 is discharged supplies with mold B1.
Above-mentioned motlten metal pump 1 comprises: by the cylinder block 4 made of pottery (silicon nitride); The piston 5 that the pottery (silicon nitride) that but easy on and off moves back and forth in this cylinder block 4 is made; And make the piston actuated that moves back and forth up and down with the integrally formed piston rod 6 of piston 5 with air pressure cylinder 7.Above-mentioned motlten metal pump 1 also is arranged to such structure, the suction path 8 of motlten metal C is communicated with the bottom in the cylinder block 4 is neighbouring, by allowing piston 5 be moved upward, can be drawn into the motlten metal C in the motlten metal stove D in the cylinder block 4 through suction path 8, and, can discharge the motlten metal C in the cylinder block 4 via suction path 8 by allowing piston move downwards.
Above-mentioned cylinder block 4 forms lower openings with through hole 10 by cover formed cylinder chamber on the cylinder body body 9 that pottery makes with the cylinder plunger 11 made of pottery, forms cylinder chamber 12.Being fixed on the linking arm 15 that base plate 14 and the outer circumferential side of cylinder body body 9 on the bell 13 of motlten metal stove D make by ceramic (silicon nitride) links together.The all of cylinder block 4 fixes on the position of the motlten metal C liquid surface lifting scope that is lower than motlten metal stove D, invade among the motlten metal C, be used for supporting piston and drive the support performance platform of operating with air pressure cylinder 16 with air pressure cylinder 7 and valve 17 and be fixed on base plate 14 by pillar 18.
Above-mentioned transfer valve 3 as shown in Figure 2, form valve casing 19 by cylinder body body 9, valve casing 19 all is arranged under the liquid level of the motlten metal C liquid surface lifting scope that is lower than motlten metal stove D, simultaneously, be provided with the valve body 21 that pottery (silicon nitride) is made, this valve body 21 is integrally formed with valve rod 20, can move up and down operation and be installed in freely in this valve casing 19.The suction path 22 that is communicated with motlten metal stove D of above-mentioned transfer valve 3, the drain passageway 23 that is communicated with supply passageway 2 and suction path 8 form in the mode that is opened on valve body mobile space 24.
As shown in Figure 2, on cylinder body body 9, be formed with the cylindric valve body installing hole 25 that can freely plug valve body 21, simultaneously, can freely plug on the inner peripheral surface of the top of this valve body installing hole 25 the embedded sleeve 26 that is fixed with in ground, partly form above-mentioned valve body mobile space 24 with the valve body installing hole of sleeve 26 downsides.
The lower end of valve body mobile space 24 be formed with towards above the above-mentioned drain passageway 23 of opening, simultaneously, be formed with the suction through hole 27 that passes cylinder body body 9 and sleeve 26, in the upper end of the valve body mobile space 24 of the position that is higher than drain passageway 23, form the suction path 22 of opening downwards in the inboard that sucks with through hole 27 and sleeve 26.The suction inlet that sucks path 22 is arranged to be opened among the motlten metal C of motlten metal stove D, and simultaneously, valve rod 20 is provided with the inner surface slip of sleeve 26 relatively also can seal the plug members 28 in the gap of valve rod 20 and sleeve 26.
On the drain passageway formation parts of making to the pottery (silicon nitride) on the cylinder body body 9 with bolting (example of substrate) 33, be formed with above-mentioned drain passageway 23.This drain passageway 23 is arranged to be opened on the bottom of valve body mobile space 24.This drain passageway forms on the parts 33, is connected with the supply pipe cylindraceous (supply passageway forms an example of parts) 34 that pottery is made, and supply passageway 2 is communicated with drain passageway 23.
Above-mentioned drain passageway 23 around the part of valve body mobile space 24 openings, with ring-type formation lower support seat 29 up, suck path 22 around the part of valve body mobile space 24 openings, i.e. the lower surface of sleeve 26 forms down upper support seat 30 with ring-type.On valve body 21, be formed with bottom contact site 31 and top contact site 32, bottom contact site 31 is along with the decline of valve body 21 is moved, contact with lower support seat 29 with ring-type, top contact site 32 contacts with upper support seat 30 with ring-type along with the rising of valve body 21 is moved.
And, also adopt following formation, be provided with between suction position and drain position and move up and down operation valve body 21 freely, above-mentioned suction position is shown in Fig. 2 (a), by means of the expanding-contracting action of valve operation with air pressure cylinder 16, make top contact site 32 leave upper support seat 30, to suck path 22 is communicated with suction path 8, simultaneously, bottom contact site 31 is contacted with lower support seat 29 with ring-type, cut-out drain passageway 23 is communicated with suction path 8, above-mentioned drain position makes bottom contact site 31 leave lower support seat 29 shown in Fig. 2 (b), and drain passageway 23 is communicated with suction path 8, simultaneously, top contact site 32 is contacted with upper support seat 30 with ring-type, and cut-out suction path 22 is communicated with suction path 8, and shown in Fig. 2 (a), move to the state piston 5 down that sucks the position move operation by means of valve body 21, the motlten metal C in the motlten metal stove D is drawn in the cylinder block 4 by sucking path 22 and suction path 8 towards the top; Shown in Fig. 2 (b), by means of making valve body 21 move to piston 5 under the state of drain position, the motlten metal C in the cylinder block 4 are discharged in the supply passageway 2 by suction path 8 and drain passageway 23 towards the move operation of below, supply with mold B1.
As shown in Figure 3, on drain passageway forms parts 33, be formed with and be viewed as circular embedded hole (example of fitting portion) 36 from the plane, supply pipe 34 under positioning states from can be embedded into this embedded hole 36 with freely plugging.Drain passageway 23 is communicated with the inboard of this embedded hole 36, simultaneously, embedded hole 36 connects formation up and down along the plug direction of supply pipe 34, in the bottom of fitting portion 36, in the position that is lower than drain passageway 23, the communication paths 37 that formation can be communicated with motlten metal stove D.
On above-mentioned supply pipe 34, form the pipe end plug members 38 that pottery (silicon nitride) that its lower end is sealed is made, simultaneously, on tube wall, be formed with through hole 39 near pipe end plug members 38, under the state that supply pipe 34 is embedded in this embedded hole 36, drain passageway 23 is communicated with supply passageway 2.
Along with supply pipe 34 embedded with respect to embedded hole 36, supply pipe bottom 40 is chimeric with communication paths 37, and this supply pipe bottom 40 is arranged on this supply pipe 34 integratedly as the plug members of these communication paths 37 of sealing.
Second form of implementation
Fig. 4 shows the major part of another form of implementation of feedway A, on the supply passageway formation parts 44 that are communicated with drain passageway 23, be connected with supply pipe 34, simultaneously, the inner surface that valve rod 20 is provided with relative sleeve 26 can slide up and down valve body 41 freely, and, being provided with can be at the valve body 21 of drain position easy on and off move operation shown in the suction position shown in Fig. 4 (a) and Fig. 4 (b), in above-mentioned suction position, valve body 41 is extracted from sleeve 26, to suck path 22 is communicated with suction path 8, simultaneously, bottom contact site 31 is contacted with lower support seat 29 with ring-type, cut-out drain passageway 23 is communicated with suction path 8, and at above-mentioned drain position, bottom contact site 31 leaves lower support seat 29, drain passageway 23 is communicated with suction path 8, simultaneously, valve body 41 is embedded in the sleeve 26, cut-out suction path 22 is communicated with suction path 8.
Other formations are identical with first form of implementation.
The 3rd form of implementation
Fig. 5 shows another form of implementation of supplying with the feedway A of casting device B as the magnesium alloy motlten metal C of molten metal one example, and explanation and the different part of feedway A shown in first form of implementation.
As shown in Figure 5, on the supply passageway formation parts 44 of connection drain passageway 23, be connected with supply pipe 34, simultaneously, be provided with the transfer valve 3 that cylinder body body 9 relatively freely plugs from the top, the drain passageway 23 and the suction path 8 that are communicated in supply passageway 2 are opened on the valve casing 19 of valve body mobile space 24 bottoms, connect and form the suction path 22 that is communicated with motlten metal stove D, make this suction path 22 be opened on the top of the valve body mobile space 24 of the position that is higher than drain passageway 23.
Extend the base component 42 that is provided with from cylinder body body 9 bottoms and be formed with circular fit hole (example of fitting portion) 43, valve casing 19 under positioning states can from above be embedded into this embedded hole 43 with freely plugging, to be communicated with the inboard of embedded hole 43 in the way of suction path 8, simultaneously, the supply passageway formation parts of pottery (silicon nitride) being made with bolt 44 are fixed on the base component 42, supply passageway 2 is communicated with the inboard of embedded hole 43, under the state that with positioning states valve casing 19 is embedded in the embedded hole 43, making suction path 8 pass cylinder chamber 12 also is communicated with it with valve body mobile space 24, and, supply passageway 2 is communicated with drain passageway 23.
Bottom at above-mentioned embedded hole 43, in the position that is lower than supply passageway 2, be formed with the communication paths 45 that is communicated with motlten metal stove D along valve casing 19 plug direction up/down perforation ground, be equipped with plug members 46 in the bottom of valve casing 19, this plug members 46 is along with valve casing 19 embedded with respect to embedded hole 43, be fitted in the communication paths 45, and seal this communication paths 45.
Other formations are identical with first form of implementation.
The 4th form of implementation
Fig. 6 shows handle is provided with pump 1 and transfer valve 3 as the feedway A of motlten metal (molten metal) C such as magnesium alloy, aluminium alloy or the kirsite supply casting device B of molten metal one example another form of implementation, be equipped with on the piston 5 of this motlten metal pump 1 as the piston ring 74 of sealing of the present invention with ring E, simultaneously, on the valve rod 20 of transfer valve 3, also be provided with scraper plate 71 of the present invention.
Above-mentioned piston ring 74 is by being the transverse shape of silicon nitride material sintering formation tetragonal heat-resistant part 81 as shown in Figure 8, forms the ring-type of C shape with position disjunction of circumferencial direction, and is arranged to the radially structure of free strain.As shown in Figure 6, this piston ring 74 is configured in is arranged to a pair of parts that can move back and forth relatively towards a direction, be cylinder block 4 with the vertical direction of the moving direction of piston 5 on relative face-off face, just between the outer peripheral face of the inner peripheral surface of cylinder block 4 and piston 5, this piston ring 74 is with the inner peripheral surface crimping with respect to cylinder block (parts) 4 under the elastic restoring force effect of its outer circumference surface, make it be in the state of elastically deformable on the undergauge direction, and, embed among the endless groove 5a that forms on piston 5 peripheral parts, be mounted to and make it move back and forth the state that relatively moving of direction stoped with respect to piston (another parts) 5 courts, whereby, along with moving back and forth of piston 5, the periphery of this piston ring slides with respect to the inner peripheral surface of cylinder block 4, can prevent moving by the motlten metal C between the face-off face.
The gauge T along the ring radial direction of heat-resistant part 81 is set at more than 0.02 times of ring external diameter K, 0.2 Yi Xia length doubly, and, the width dimensions H along the ring axis directions X of heat-resistant part 81 sets more than 0.2 times of gauge T for, 1.5 Yi Xia length doubly, thus, can guarantee the sufficient elasticity deflection of full intensity and radial direction, overcoming piston ring 74 puts forth effort with respect to the heating glue of cylinder block 4, even piston 5 moves with piston ring 74, can not damage piston ring 74 yet, and, as shown in Figure 9, even under the state that piston axis Y tilts with respect to cylinder-bore axis Z, cause that piston 5 takes place along the abnormal conditions that cylinder-bore axis Z moves back and forth, the gap of the inner peripheral surface of piston 5 outer peripheral faces and cylinder block 4 is increased, also can guarantee sealing, strike off slag fully.
Above-mentioned transfer valve 3, its side valve type valve body (example of operating member) 21 is all integrally formed by pottery (silicon nitride) with its valve rod (example of action bars) 20, and roughly link together coaxial shape, simultaneously, cylinder body body 9 is provided with patchhole 62, but valve body 21 and valve rod 20 easy on and off insert in this patchhole 62 movably, under the liquid level of the liquid surface lifting scope of the motlten metal C of these patchhole 62 its upper end open in being lower than motlten metal stove D, valve body 21 inserts in the patchhole 62 with valve rod 20, makes valve rod 20 outstanding upward from patchhole 62 upper ends.
The cone hole part 65 that above-mentioned patchhole 62 is arranged to change with the internal diameter taper connects the shape of major diameter patchhole 63 with the minor diameter patchhole 64 of bottom on top, the lower end of minor diameter patchhole 64 is sealed by valve plug 66, valve body moves with the hole and is made of minor diameter patchhole 64, move with near the lower end in hole 64 at valve body, suck path 22 along laterally forming with the interior motlten metal that is communicated with of motlten metal stove D, simultaneously, be opened on motlten metal drain passageway 23 that is communicated with supply pipe 34 and the suction path 8 that valve body moves usefulness hole 64 along forming up and down, and, also along laterally being formed for being communicated with in the motlten metal stove D and the communication paths 67 of major diameter patchhole 63.
Above-mentioned valve body 21 has a pair of valve body 69,70 up and down, and a pair of valve body 69,70 is arranged to make the sealing ring made from piston ring shown in Figure 8 74 potteries same, that form C shape (silicon nitride) 68 to move the inner peripheral surface sliding-contact of using hole 64 with valve body up and down.The valve rod 20 that carries out with the driving of air pressure cylinder 16 by means of valve operation move up and down operation, valve body 21 in moving with hole 64, valve body is moved up and down, and, allowing shown in Fig. 6 (a) suck path 22 is communicated with suction path 8, by the state that is communicated with of lower valve body 70 cut-out drain passageways 23 and suction path 8 (below be called the suction position) under; And shown in Fig. 6 (b) allow drain passageway 23 be communicated with suction path 8, by upper valve body 69 cut off being communicated with of drain passageways 23 and major diameter patchhole 63, simultaneously with under the state that is communicated with of lower valve body 70 cut-out suction paths 22 and suction path 8 (below be called drain position), change valve body 21 moves the contact condition of using internal surface of hole with respect to valve body, whereby, the stream of changeable motlten metal C.
And adopt such formation, shown in Fig. 6 (a), by means of piston 5 move operation upward that valve body 21 is moved under the state that sucks the position, motlten metal C in the motlten metal stove D is sucked in the cylinder chamber 12, shown in Fig. 6 (b), by means of piston 5 move operation downwards under the state that valve body 21 is moved to drain position, the motlten metal C in the cylinder chamber 12 is discharged in the supply passageway 2 of supply pipe 34.
Peripheral part at above-mentioned valve rod 20 is provided with scraper plate 71, scraper plate 71 will be sealed between this valve rod 20 and the major diameter patchhole 63, simultaneously, the operation that moves up and down along with valve rod 20, roughly slide with respect to major diameter patchhole inner peripheral surface along full week, valve body 21 is moved under the state of upper end of the scope of moving up and down, and this scraper plate 71 moves near the upper end of major diameter patchhole 63.
As shown in Figure 7, above-mentioned scraper plate 71 is equipped with the ring component 72 that pottery (silicon nitride) is made, this ring component 72 is mounted to the state that prevents that it from extracting the formed endless groove 20a from the peripheral part of valve rod 20, near near the intrusion of the slags such as metal oxide that generate of motlten metal liquid level valve body 21 that this ring component 72 can prevent motlten metal stove D is set, simultaneously, even form under the state of piling up attached to major diameter patchhole inner peripheral surface at slag, also ring component 72 is slided along the vertical direction with respect to major diameter patchhole inner peripheral surface mobile, strikes off slag.
Above-mentioned ring component 72 is same with piston ring 74 shown in Figure 8, with roughly according to a position of certain width resecting loop circumferencial direction, form the C shape of disjunction, and constitute strain radially, under the state that makes radially inboard (undergauge direction) strain of this ring component 72, it is embedded in the major diameter patchhole 63, under its elastic restoring force effect, be crimped onto major diameter patchhole inner peripheral surface.
In addition, the end face 73 of the off-position of ring component 72 along the circumferential direction is formed obliquely, this end face 73 is arranged in each other with respect to along the circumferential direction relatively-movable form under the state of glide direction face-off, thereby, can prevent effectively that slag is along with motlten metal C enters valve body 21 1 sides by the off-position of ring component 72 together.
Moreover, in above-mentioned form of implementation, though show the situation that cylinder block 4, piston 5, piston rod 6, piston ring 74, linking arm 15, valve body 21, valve rod 20, sealing ring 68, ring component 72 are made for silicon nitride, but, at motlten metal C is under the situation of magnesium alloy motlten metal, also can be with steel based materials such as SKD, the surface treatments such as processing of can also suitably aluminizing.
Other formations are identical with first form of implementation.
The 5th form of implementation
Though it is not shown in the figures, but, also can replace the heat-resistant part 81 formed piston rings made from silicon nitride 74 shown in the 7th form of implementation, composite by sintered titanium metal materials such as (Ti) and titanium carbide ceramic materials such as (TiC) is set with certain heat-resistant part 81 formed piston rings 74.
Other formations are identical with the 4th form of implementation.
The 6th form of implementation
Figure 10 shows as sealing another form of implementation with the piston ring 74 of ring E, the transverse shape of heat-resistant part 81 forms has the trapezoidal of two limit 81a, 81b being parallel to each other along the ring axis directions X, shown in Figure 10 (b), long limit 81b one side among two limit 81a, the 81b that are parallel to each other is fitted on the peripheral part of piston (another parts) 5 with among the formed dovetail groove 5b of ring-type, and the side face of minor face 81a one side among two limit 81a, the 81b that are parallel to each other is with respect to cylinder block (parts) 4 crimping.
Other formations are identical with the 4th or the 5th form of implementation.
The 7th form of implementation
Figure 11 shows another example of the motlten metal pump 1 shown in the 4th form of implementation, the circular cylinder body top board 83 that cylinder block 4 is made by the cylindric cylinder body body 9 that pottery (silicon nitride) is set makes and the pottery (silicon nitride) of sealing the upper opening of this cylinder body body 9 constitutes, and the lower openings 82 of cylinder body body 9 is open in the motlten metal C of motlten metal stove D.Be provided with and the 7th form of implementation shown in the piston 5 made of the pottery (silicon nitride) of same piston ring 74 and the cylinder body body 9 between the cylinder body top board 83 in be formed with cylinder chamber 12, simultaneously, also be formed with the suction path 8 that is communicated with cylinder chamber 12.
Form tubular partition member 84 in the upper end of above-mentioned cylinder body body 9, this tubular partition member 84 is fixed on the bell 13 of motlten metal stove D, the lower position of all minimum minimum level L in the liquid surface lifting scope of the motlten metal C that is lower than motlten metal stove D of cylinder block 4 is fixed, and it is submerged among the motlten metal C.
Push the top that cylinder part 85 that the pottery (silicon nitride) of above-mentioned cylinder body top board 83 makes is fixed on tubular partition member 84 from the top with respect to cylinder body body 9, simultaneously pottery (silicon nitride) but the parts of bearings 87 made have easy on and off movably the bearing of supporting piston bar 6 and be fixed into the form of the inboard that can seal cylinder part 85 with tube portion 86.Along bearing tube portion 86 and cylinder body top board 83 formed through holes 88, can be towards upper and lower to the reciprocatingly interspersed piston rod 6 of freedom, the operation that moves back and forth up and down by means of piston rod 6, piston 8 is moved back and forth, by suction path 8 motlten metal C is drawn in the cylinder chamber 12, and by suction path 8 motlten metal C is discharged in the supply pipe 34, to casting device B supplying melting metal.
As shown in figure 12, sealing of the present invention is configured in ring E and is arranged to a pair of parts that can move back and forth relatively towards a direction, be piston rod 6 with the vertical direction of the moving direction of cylinder body top board 83 between the relative face-off face, sealing with the ring E with its outer circumference surface under the elastic restoring force effect with respect to piston rod (parts) 6 crimping, make it be in the state of elastically deformable on the hole enlargement direction, and, embed in the through hole 88 in the formed endless grooves 89 of perimembranous, be mounted to make its with respect to cylinder body top board (another parts) 83 towards moving back and forth the state that relatively moving of direction stoped.Whereby, along with piston rod 6 moving back and forth with respect to cylinder body top board 83, sealing is slided with respect to piston rod 6 with the periphery of ring E, can prevent moving by the motlten metal C between the face-off face, motlten metal C in the time of can also preventing to suck motlten metal C in the cylinder chamber 12 is by the suction between the face-off face, or the motlten metal C when being drawn into motlten metal C in the cylinder chamber 12 and supplying with casting device B is by the leakage between the face-off face, simultaneously, available sealing is struck off with ring E and is adhered to, be deposited in the slag of the motlten metal C on piston rod 6 side faces, and then, can prevent from sealing to be taken place with the deadlocked thing on piston rod 6 of ring E heating because of the intervention of slag.
Other formations are identical with the 4th～the 6th form of implementation.
Produce above-mentioned sealing with the ring ring external diameter K of E and heat-resistant part 81 along the gauge T of ring radial direction with along the sealing of the different various sizes of the combination of the width dimensions H of ring axis direction with encircling (below be called sample 1～13), the piston ring 74 on the piston 5 of being installed in as the motlten metal pump 1 shown in the 7th form of implementation, each sample is turned round continuously, sample 1～16 is subjected to breakage or the deadlocked working time that causes adhering of generating heat is investigated on cylinder block 4.
[table 1] shows this investigation result, gauge T with respect to the sample 8,9 of the ratio (T/K) discontented 0.02 of ring external diameter K in the time breakage of roughly working month, gauge T surpasses 0.2 sample 11 in the time piston rod 6 generation distortion of roughly working month with respect to the ratio (T/K) that encircles external diameter K, cause piston rod 6 heating glues to land and adhere on the cylinder block 4.
In addition, shown in the table: even in gauge T with respect to the ratio (T/K) of ring external diameter K is sample 1～7, sample 10 and sample 12,13 more than 0.02, below 0.2, its width dimensions H causes heating glue to land with respect to the sample 10 of the ratio (H/T) of gauge T discontented 0.2 and sample 11 in the time of roughly working one month adhering on the cylinder block 4, and its width dimensions H surpasses 1.5 sample 13 in the time breakage of roughly working month with respect to the ratio (H/T) of gauge T; Even gauge T is in the sample more than 0.02, below 0.2 with respect to the ratio (T/K) of ring external diameter K, its width dimensions H is a sample 1～7 more than 0.2, below 1.5 with respect to the ratio (H/T) of gauge T, in the time neither breakage also inadhesion of work more than 6 months, received good effect, therefore, be appreciated that and both be easy to guarantee durability, also be easy to guarantee sealing.
In addition, material SN represents is to be hardness that 90HRA, density are the pottery that 3.2 silicon nitride sintering forms, and material MC represents is the cermet that the composite sintering of titanium (Ti) and titanium carbide (TiC) is formed.
Table 1
Sample Ring external diameter K (mm) Gauge T (mm) Width dimensions H (mm) ?T/K ??H/T Material Working time
Sample 1 ????45 ????5.0 ????6 ?0.11 ??0.83 ??SN More than 6 months
Sample 2 ????80 ????5.0 ????8 ?0.063 ??0.63 ??SN More than 6 months
Sample 3 ????45 ????1.5 ????5 ?0.03 ??0.30 ??MC More than 6 months
Sample 4 ????80 ????2.5 ????10 ?0.031 ??0.25 ??MC More than 6 months
Sample 5 ????50 ????8.5 ????42 ?0.17 ??0.20 ??SN More than 6 months
Sample 6 ????50 ????2.5 ????2.5 ?0.05 ??1.0 ??SN More than 6 months
Sample 7 ????45 ????4.5 ????3 ?0.10 ??1.5 ??SN More than 6 months
Sample 8 ????50 ????1.0 ????5 ?0.018 ??0.20 ??SN Breakage in 1 month
Sample 9 ????80 ????1.5 ????10 ?0.019 ??0.15 ??MC Breakage in 1 month
Sample 10 ????45 ????4.0 ????50 ?0.09 ??0.08 ??SN Adhesion in 1 month
Sample 11 ????45 ????9.9 ????8 ?0.22 ??1.24 ??SN It is affixed that the piston rod distortion is produced
Sample 12 ????80 ????2.5 ????128 ?0.031 ??0.019 ??SN Adhesion in 1 month
Sample 13 ????80 ????4.0 ????2.5 ?0.05 ??1.6 ??SN Breakage in 1 month
The 8th form of implementation
Figure 13 shows another form of implementation of ring component 72, the end face 73 of its disjunction position forms hook-type, the glide direction end face part 73b that this hook-type has along the circumferential direction long circumferential end faces part 73a and grows along the two ends glide direction of its circumferential end faces part 73a, along with strain radially, the circumferential end faces part 73a that stands facing each other on glide direction along the circumferential direction moves to sliding-contact each other, therefore, can prevent effectively that slag is along with motlten metal C enters valve body 21 1 sides or piston 5 one sides by the disjunction position of ring component 72 together.
The 9th form of implementation
Figure 14 shows the major part of another form of implementation that a motlten metal (molten metal) C supplies with the feedway A of casting device B, being provided with can be the valve body of transfer valve 3 (example of operating member) 21 with valve rod (example of action bars) 20 insertions patchhole 62 wherein, being shaped as of this patchhole 62 uses the taper hole part identical with the 7th form of implementation that the major diameter patchhole 91 of the minor diameter patchhole 90 on top with the bottom linked together, the part that crosses major diameter patchhole 91 from the above-below direction centre position of minor diameter patchhole 90 constitutes valve body and moves and use the hole, the motlten metal drain passageway 23 that is communicated with supply pipe 34 is opened on the bottom of major diameter patchhole 91, simultaneously, suction path 8 is opened on the above-below direction centre position of major diameter patchhole 91, and along laterally forming the motlten metal that is communicated with minor diameter patchhole 90 in the motlten metal stove D is sucked path 22.
Above-mentioned valve body 21 has bottom slide-valve body 92 and contacts valve body 93, bottom slide-valve body 92 is provided with the sealing ring 68 that the pottery that forms C shape is made, the inner peripheral surface sliding-contact of sealing ring 68 and minor diameter patchhole 90, contact valve body 93 contacts with the formed valve seat 94 in the bottom of major diameter patchhole 91.By means of valve operation the operation that moves up and down with the valve rod that driving produced 20 of air pressure cylinder 16, valve body 21 is moved up and down, move the contact condition of using internal surface of hole with respect to valve body by change valve body 21, the stream of motlten metal C is switched to suction path 22 is communicated with suction path 8 shown in Figure 14 (a), and cut off the state that is communicated with (below be called the suction position) of drain passageways 23 and suction path 8 and drain passageway 23 is communicated with suction path 8 shown in Figure 14 (b) with contact valve body 93, and cut off the connected state that sucks paths 22 and suction path 8 (below be called drain position) with bottom slide-valve body 92.
Upper portion at bottom slide-valve body 92 is provided with top slide-valve body 95.Also be provided with sealing ring 68, sealing ring 68 is along with the operation that moves up and down of valve rod 20,, and, move near the upper end of minor diameter patchhole 90 along roughly sliding in full week with respect to minor diameter patchhole inner peripheral surface in that valve body 21 is moved under the state of upper end of the scope of moving up and down.
In addition, motlten metal pump 1 usefulness pottery (silicon nitride) forms piston (example of operating member) 5 and its piston rod (example of functional unit) 6 that the piston ring 74 that pottery (silicon nitride) makes is installed, and both are shown coaxial shape greatly links together, simultaneously, on cylinder body body 9, be provided with cylinder chamber and form, form with in the through hole 10 but piston 5 inserts this cylinder chamber movably with piston rod 6 easy on and off with through hole (example of patchhole) 10 with roughly certain internal diameter.Under the low liquid level of this cylinder chamber's formation with the motlten metal C liquid surface lifting scope of through hole 10 its upper end open in being lower than motlten metal stove D, piston 5 is inserted cylinder chamber with piston rod 6 form, make piston rod 6 form with the upper end of through hole 10 outstanding upward from cylinder chamber with in the through hole 10.
Above-mentioned cylinder chamber forms and seals its lower end with through hole 10 by cylinder block 11, and forms bottom formation piston with through hole 10 with cylinder chamber and move and use the hole.By means of the move up and down operation of piston actuated with the piston rod that driving produced 6 of air pressure cylinder 7, make piston slide up and down to move, and, shown in Figure 14 (a), by means of piston 5 move operation upward that allows valve body 21 move to suck under the state of position, motlten metal C in the motlten metal stove D is drawn into piston to be moved with in the hole, and, shown in Figure 14 (b), be discharged in the supply pipe 34 by means of allowing valve body 21 move to piston 5 move operation downwards under the state of drain position, piston being moved with the motlten metal C in the hole.
Above-mentioned piston rod 6 is connected in piston actuated and extends major diameter bar 76 formations that are provided with piston 5 and form with the smaller diameter rods 75 of air pressure cylinder 7 with towards the top.Peripheral part at major diameter bar 76 is provided with scraper plate 71, this scraper plate 71 forms this major diameter bar 76 and cylinder chamber with sealing between the through hole 10, simultaneously, the operation that moves up and down along with piston rod 6, form with the through hole inner peripheral surface along roughly full week slides with respect to cylinder chamber, piston 5 is moved under the state of upper end of the scope of moving up and down, moving to cylinder chamber and form with near the upper end of through hole 10.
Structure shown in above-mentioned scraper plate 71 and the 4th form of implementation is same, the ring component 72 that pottery (silicon nitride) is made is installed, this ring component 72 is to form C shape by a position disjunction with circumferencial direction, and be mounted to the state that prevents that it from extracting from the peripheral part of major diameter bar 76, make ring component 72 under the state of radially inner side strain, this ring component 72 is embedded into cylinder chamber forms, it is formed with the crimping of through hole inner peripheral surface with respect to cylinder chamber with in the through hole 10.
Other formations are identical with first form of implementation.
Other forms of implementation
1, molten metal casting device of the present invention also can be cast molten metals such as aluminium or zinc, tin in mold.
2, molten metal feedway of the present invention also can form the communication paths that can be communicated with the motlten metal stove in the bottom of fitting portion along lateral direction penetrating.
3, molten metal feedway of the present invention also can be supplied with molten metal in the casting ladle be arranged at casting device etc.
4, molten metal feedway of the present invention can be supplied with aluminium or molten metals such as zinc, tin.
5, molten metal feedway of the present invention can also be provided with scraper plate, this scraper plate can prevent pulling out the peripheral part that a following titanium metal ring components such as (Ti) of state is installed in action bars, and make this ring component under the state of radially inner side strain, this ring component is embedded into is inserting in the hole.
6, molten metal feedway of the present invention can also adopt in the following manner the valve body that constitutes: by means of the operation that moves up and down as the valve rod of action bars, operating member is moved with moving up and down in the hole through valve body, move with the valve seat that forms on the internal surface of hole with valve body and to contact, whereby, only flow path is switched.
7, molten metal feedway of the present invention can also form piston rod as action bars less than the minor diameter of the piston external diameter of operating member with diameter.
Industrial application
The invention relates to the molten metal feedway, be of value to the precision or the maintainability that improve supplying melting metal.

Claims (10)

1. the feedway of a molten metal, it constitutes, be provided with: be communicated with in the suction path of molten metal and the cylinder block, by allowing the piston in the described cylinder block move towards a direction, through described suction path the molten metal in the motlten metal stove is drawn in the described cylinder block, and by allowing described piston move to another way, the described suction path of process is the pump of the discharge of the molten metal in the described cylinder block; The molten metal of discharging by described suction path is supplied with the supply passageway of mold; And transfer valve, this transfer valve is in that be equipped with on the valve casing can be at the valve body that sucks easy on and off move operation between position and the drain position, described valve casing is formed with the suction path that is communicated with described motlten metal stove, drain passageway that is communicated with described supply passageway and described suction path, make described suction path, drain passageway and suction passage opening are in the valve body mobile space, described suction position is by described suction path is communicated with described suction path, cut off the position that is communicated with of described drain passageway and described suction path, described drain position is that described drain passageway is communicated with described suction path, cut off the position that is communicated with of described suction path and described suction path, by means of making described valve body move to described piston under the state of described suction position towards the move operation of a direction, molten metal in the described motlten metal stove is drawn in the described cylinder block, by means of making described valve body move to described piston move operation to another way under the state of described drain position, molten metal in the described cylinder block is discharged in the described supply passageway, it is characterized in that
Described valve casing all is arranged under the liquid level of the molten metal in the described motlten metal stove, described drain passageway formed make the lower end of its upward opening in described valve body mobile space, simultaneously, described suction path formed make it be opened on described valve body mobile space in the position that is higher than described drain passageway, around the peristome of described valve body mobile space, form the lower support seat at described drain passageway with ring-type, simultaneously, on this valve body, form along with the decline of described valve body is moved, the bottom contact site that touches with ring-type and described lower support seated connection, touch with ring-type and described lower support seated connection by described bottom contact site, described valve body is moved to the suction position that is communicated with that cuts off described drain passageway and described suction path, and the molten metal interior described motlten metal stove is drawn in the described cylinder block.
2. according to the feedway of the molten metal of claim 1 record, it is characterized in that, described suction path forms the upper end that is opened on described valve body mobile space towards the below, around the peristome of described suction path, form the upper support seat with ring-type, simultaneously, on this valve body, form along with the rising of described valve body is moved, the top contact site that touches with ring-type and described upper support seated connection, touch with ring-type and described upper support seated connection by described top contact site, described valve body is moved to the drain position that is communicated with that cuts off described suction path and described suction path, and the molten metal interior described cylinder block is discharged to described supply passageway.
3. the feedway of a molten metal, it constitutes, be provided with: be communicated with in the suction path of molten metal and the cylinder block, by allowing the piston in the described cylinder block move towards a direction, through described suction path the molten metal in the motlten metal stove is drawn in the described cylinder block, and, by allowing described piston move to another way, the pump that the described suction path of process is discharged the molten metal in the described cylinder block, and the supply passageway of the molten metal of discharging by described suction path being supplied with casting device, also be provided with transfer valve, this transfer valve is in that be equipped with on the valve casing can be at the valve body that sucks easy on and off move operation between position and the drain position, described valve casing makes the suction path that is communicated with described motlten metal stove, drain passageway that is communicated with described supply passageway and described suction passage opening are in the valve body mobile space, described suction position is by described suction path is communicated with described suction path, cut off the position that is communicated with of described drain passageway and described suction path, described drain position is that described drain passageway is communicated with described suction path, cut off the position that is communicated with of described suction path and described suction path, the suction inlet of described suction path is opened in the molten metal of described motlten metal stove, by means of making described valve body move to described piston under the state of described suction position towards the move operation of a direction, molten metal in the described motlten metal stove is drawn in the described cylinder block, by means of making described valve body move to described piston move operation to another way under the state of described drain position, molten metal in the described cylinder block is discharged in the described supply passageway, it is characterized in that
Described suction path connects ground and forms on described valve casing, and be opened on described valve body mobile space in the position that is higher than described drain passageway, be provided with on the base component of described cylinder block, formation can be embedded with the fitting portion that the supply passageway that is used to form described supply passageway forms parts with freely plugging from the top, described drain passageway is communicated with the inboard of described fitting portion, under the state that described supply passageway formation parts is embedded in the described fitting portion, described drain passageway is communicated with described supply passageway, bottom at described fitting portion, connect ground in the position that is lower than described drain passageway and form the communication paths that can be communicated with described motlten metal stove, described supply passageway form be provided with integratedly on the parts along with described supply passageway form parts with respect to described fitting portion carry out embedded, the plug members that described communication paths is sealed.
4. the feedway of a molten metal, it constitutes, be provided with: be communicated with in the suction path of molten metal and the cylinder block, by allowing the piston in the described cylinder block move towards a direction, through described suction path the molten metal in the motlten metal stove is drawn in the described cylinder block, and, by allowing described piston move to another way, the pump that the described suction path of process is discharged the molten metal in the described cylinder block, and the supply passageway of the molten metal of discharging by described suction path being supplied with casting device, also be provided with transfer valve, this transfer valve is in that be equipped with on the valve casing can be at the valve body that sucks easy on and off move operation between position and the drain position, described valve casing makes the suction path that is communicated with described motlten metal stove, drain passageway that is communicated with described supply passageway and described suction passage opening are in the valve body mobile space, described suction position is by described suction path is communicated with described suction path, cut off the position that is communicated with of described drain passageway and described suction path, described drain position is that described drain passageway is communicated with described suction path, cut off the position that is communicated with of described suction path and described suction path, the suction inlet of described suction path is opened in the molten metal of described motlten metal stove, by means of making described valve body move to described piston under the state of described suction position towards the move operation of a direction, molten metal in the described motlten metal stove is drawn in the described cylinder block, by means of making described valve body move to described piston move operation to another way under the state of described drain position, molten metal in the described cylinder block is discharged in the described supply passageway, it is characterized in that
Described suction path connects ground and forms on described valve casing, and be opened on described valve body mobile space in the position that is higher than described drain passageway, be provided with on the base component of described cylinder block, formation can be embedded with the fitting portion of described valve casing with freely plugging from the top, described supply passageway is communicated with the inboard of described fitting portion, under the state that described valve casing is embedded in the described fitting portion, described supply passageway is communicated with described drain passageway, bottom at described fitting portion, connect ground in the position that is lower than described supply passageway and form the communication paths that can be communicated with described motlten metal stove, on described valve casing, be provided with integratedly along with described valve casing with respect to described fitting portion carry out embedded, the plug members that described communication paths is sealed.
5. according to the feedway of the molten metal of claim 4 record, it is characterized in that, be arranged to make it to form described communication paths along the plug direction up/down perforation ground that described supply passageway forms parts or described valve casing, along with described supply passageway forms embedded with respect to described fitting portion of parts or described valve casing, described plug members is fitted in the described communication paths.
6. the feedway of a molten metal, operating member and its action bars are connected as one, simultaneously, be provided with the patchhole that described operating member and described action bars easy on and off are inserted movably, the upper end open of this patchhole is in the molten metal of motlten metal stove, be arranged to make it to insert described inserting in the hole described operating member with described action bars, make described action bars outstanding from the upper end of described patchhole, the operation that moves up and down by described action bars, described operating member is moved up and down, freely change contact condition, it is characterized in that with respect to this patchhole inner surface
Peripheral part at described action bars is provided with scraper plate, and this scraper plate will be sealed between described action bars and the described patchhole, simultaneously, and along with the operation that moves up and down of described action bars, with respect to the roughly full week slip in edge of inner peripheral surface of patchhole.
7. according to the feedway of the molten metal of claim 6 record, it is characterized in that described scraper plate is arranged in described operating member is moved under the state of upper end of the scope of moving up and down, and moves near the upper end of described patchhole.
8. according to the feedway of molten metals of claim 6 or 7 records, it is characterized in that, when constituting described scraper plate, at described action bars peripheral part the ring component that pottery is made is installed, this ring component is to form C shape by a position disjunction with circumferencial direction, and be mounted to the state that prevents that it from extracting, making ring component under the state of radially inner side strain, this ring component is embedded into described inserting in the hole.
9. according to the feedway of the molten metal of the arbitrary record of claim 6～8, it is characterized in that, move with the bottom that forms described patchhole in the hole at described valve body, utilize valve body to constitute described operating member, this valve body moves usefulness inside, hole at described valve body and moves up and down by the operation that moves up and down of described action bars, changes with respect to valve body and moves the contact condition of using internal surface of hole, whereby, switch the stream of molten metal.
10. according to the feedway of the molten metal of the arbitrary record of claim 6～8, it is characterized in that, move with the bottom that forms described patchhole in the hole at described piston, utilize piston to constitute described operating member, this piston is by the operation that moves up and down of described action bars, moves with inside, hole at described piston to slide up and down to move, the contact position of using internal surface of hole is moved in change with respect to piston, whereby, move with inside and outside the hole, carry out the driving of suction molten metal along described piston.
CNB028155084A 2001-06-06 2002-06-03 Molten solution feeder Expired - Fee Related CN1277639C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP170990/2001 2001-06-06
JP2001170990A JP2002361390A (en) 2001-06-06 2001-06-06 Pouring device for molten metal
JP229873/2001 2001-07-30
JP2001229873A JP2003039159A (en) 2001-07-30 2001-07-30 Supplying device for molten metal
JP121225/2002 2002-04-23
JP2002121225A JP2003311393A (en) 2002-04-23 2002-04-23 Apparatus for supplying molten metal

Publications (2)

Publication Number Publication Date
CN1538888A true CN1538888A (en) 2004-10-20
CN1277639C CN1277639C (en) 2006-10-04

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ID=27346886

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Application Number Title Priority Date Filing Date
CNB028155084A Expired - Fee Related CN1277639C (en) 2001-06-06 2002-06-03 Molten solution feeder

Country Status (5)

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EP (1) EP1407843A4 (en)
KR (1) KR20030097911A (en)
CN (1) CN1277639C (en)
TW (1) TW528625B (en)
WO (1) WO2002100574A1 (en)

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CN105268945A (en) * 2014-07-16 2016-01-27 丰田自动车株式会社 Die casting apparatus
CN107000047A (en) * 2014-09-26 2017-08-01 派瑞泰克有限公司 Mold pump
CN112829177A (en) * 2019-11-22 2021-05-25 菲尼克斯电气公司 Apparatus and method for die casting metal
CN112829178A (en) * 2019-11-22 2021-05-25 菲尼克斯电气公司 Apparatus and method for die casting metal

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DE10316758A1 (en) * 2003-04-10 2004-10-28 Bühler AG Holding furnace and dosing device for molten metal
EP1795283A1 (en) * 2005-12-06 2007-06-13 Meltec Industrieofenbau GmbH Device for charging foundry machines with metal melt
ITBS20090211A1 (en) * 2009-11-18 2011-05-19 Giuseppe Costa SYSTEM FOR POWERING MOLTEN METAL TO A MACHINE FOR PRESSOCOLATA OR DIE-CASTING
DE102020207016A1 (en) 2020-06-04 2021-12-09 Oskar Frech Gmbh + Co. Kg Casting unit for a die casting machine

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JPH0565458U (en) * 1992-02-17 1993-08-31 東芝機械株式会社 Injection device for die casting machine
JPH0819848A (en) * 1994-07-01 1996-01-23 Ube Ind Ltd Device for supplying molten magnesium
JPH0825014A (en) * 1994-07-19 1996-01-30 Ube Ind Ltd Magnesium pouring device
JP2001058257A (en) * 1999-08-23 2001-03-06 Ube Ind Ltd Device for supplying molten magnesium

Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN104870122A (en) * 2012-12-10 2015-08-26 Ykk株式会社 Method for operating hot chamber die casting machine
CN104870122B (en) * 2012-12-10 2016-10-12 Ykk株式会社 The method of operating of hot chamber machine
CN105268945A (en) * 2014-07-16 2016-01-27 丰田自动车株式会社 Die casting apparatus
CN107000047A (en) * 2014-09-26 2017-08-01 派瑞泰克有限公司 Mold pump
CN112829177A (en) * 2019-11-22 2021-05-25 菲尼克斯电气公司 Apparatus and method for die casting metal
CN112829178A (en) * 2019-11-22 2021-05-25 菲尼克斯电气公司 Apparatus and method for die casting metal

Also Published As

Publication number Publication date
CN1277639C (en) 2006-10-04
EP1407843A4 (en) 2006-06-07
WO2002100574A1 (en) 2002-12-19
KR20030097911A (en) 2003-12-31
EP1407843A1 (en) 2004-04-14
TW528625B (en) 2003-04-21

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