CN101428338B - Centrifugal casting apparatus and metal mould replacing method - Google Patents
Centrifugal casting apparatus and metal mould replacing method Download PDFInfo
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- CN101428338B CN101428338B CN2007101850338A CN200710185033A CN101428338B CN 101428338 B CN101428338 B CN 101428338B CN 2007101850338 A CN2007101850338 A CN 2007101850338A CN 200710185033 A CN200710185033 A CN 200710185033A CN 101428338 B CN101428338 B CN 101428338B
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Abstract
The invention discloses a centrifugal casting device, through which a cylinder-shaped metal die (1) rotates around a shaft center (X) and molten metal flows into the inner side of the metal die (1), a metal pipe (10) is cast by utilizing a centrifugal force, the metal die (1) is cooled by cooling water from the outer side during casting, wherein, the centrifugal casting device is provided with an outer frame (3) matched at the feeding part of the molten metal, an inner frame (2) which can be freely moved and replaced outside the outer frame (3) under the condition that the metal die (1) keeps freely rotating around the shaft center, a cooling water leading-in mechanism arranged between the inner frame outside the outer frame and the metal die for leading-in cooling water and a rotary driving force conveying part (6), which conveys the rotary driving force to the metal die (1) maintained in the inner frame so as to rotate. Therefore, at the rotating stage of the centrifugal casting device, the centrifugal casting device can carry out the following operation in advance or carry out the para-position operation such as posture maintaining of the metal die (1) relative to the inner frame (2) for centrifugal casting next time.
Description
Technical field
The present invention relates to utilize the centrifugal casting equipment of centrifugal force cast metal pipe and the replacing method of metal die.
Background technology
Following centre spinning method is known; Promptly; When the axle center rotates, flow into motlten metal in the inside of metal die, utilize centrifugal force to cast an end has the birdsmouth and the other end that the metal tubes such as cast iron of socket are arranged to metal die through making drum under the horizontal state of the axle center of this metal die.In this centre spinning method, because effect centrifugal force and in pressurization, casting, so have the advantage that can access the few metal tube of densification and alloy.
As the centrifugal casting equipment that is used for this centre spinning method, the known water-cooled centrifugal casting equipment that carries out centrifugal casting when having from the outside with the water quench metal die.
Special public clear 46-27957 communique (requires priority in Japan; April 19 nineteen sixty-eight; France, No. 148643) etc. in, disclose and be called as the centrifugal casting equipment that rotates water tank type; This centrifugal casting equipment is as such shown in Figure 14 is concise and to the point; The sleeve (rotational circle cylindrical shell) 52 that concentric sets metal die 51 cylindraceous and sets in these metal die 51 periphery devices spaced apart is that the center is one free rotary ground supporting these metal dies 51 and sleeves 52 with their axle center, feeds to the annulus portion 55 between metal die 51 and the sleeve 52 to cooling water from the outside simultaneously.At the fixing endless member 53 of the periphery local configuration of sleeve 52, this fixedly endless member constitute and rotate freely bearing sleeve 52 and metal die 51, its inner space links to each other with annulus portion 55 simultaneously.In annulus portion 55, be provided with system outside the cooling water access that links to each other.Prevent the sealing 54 that leaks in the rotational circle cylindrical shell 52 and the fixing boundary portion setting of endless member 53.In addition; Reference numeral 56 among Figure 14 is to keep the fixedly housing of the movable stand of endless member 53; In this centrifugal casting equipment, on the housing 56 of movable stand via sealing 54 and fixing endless member 53, free rotary ground supporting sleeve 52 and metal die 51.In addition, Reference numeral 57 is as being used to make the motor of the rotation of sleeve 52 and metal die 51 rotations with drive source.In addition, the driving force of this motor 57 is passed to sleeve 52 via connecting the driving force transferring elements 58 that band constituted that housing 56 is provided with, and makes sleeve 52 rotations.
According to this centrifugal casting equipment,,, increase the output of metal tube so can shorten the cooled and solidified time behind the inflow motlten metal owing to be structure with water quench metal die 51.
But in this rotation water tank type centrifugal casting equipment, its structure is to be configured in the sleeve 52 of metal die 51 peripheries with metal die 51 rotations.Thereby; Must the sealing 54 that prevent to leak, fixedly endless member 53 free rotary ground supporting metal dies 51 through being provided with sealing 54 simultaneously be set between endless member 53 and the sleeve 52 fixedly owing to constitute, make that sealing 54 structures that require this swivel bearing function and water seal resistance become very complicated easily, the cost of equipment price is high and shortcoming that the stage replacing of replacing metal die 51 need a lot of times so exist.
Relative therewith; In No. 37399 communiques of patent etc. so-called water tank type centrifugal casting equipment is disclosed for example; This centrifugal casting equipment has adopted with cooling water from external refrigeration metal die and the water-cooled centre spinning method that carries out centrifugal casting equally, does not make the casing rotation of internal storage cooling water simultaneously and is in stationary state.
This centrifugal casting equipment such as Figure 15, shown in Figure 16 can take in metal die 64, and dispose a pair of backing roll 65,66 with this metal die 64 of two-side supporting from the below in by the lower frame 61 of box roughly and casing 63 that roughly loam cake 62 of semi-circular cross-section constitutes.In addition, constitute in casing 63 under the state of storing cooling water 67, can be through backing roll 65 of drive motors 70 rotations, with cooling water from external refrigeration metal die 64.In addition, cooling water ingress pipe 74 that imports cooling water 67 or the cooling water discharge pipe 75 of discharging cooling water 67 are set in casing 63.In addition, the Reference numeral 71 among Figure 16 is mounted in from the driving pulley of backing roll 65 ends that casing 63 is given prominence to, and this driving pulley 71 is suspended on the opposition side part of the rotating band 72 that is hung on drive motors 70.
Because this centrifugal casting equipment is also by cooling water 67 cool metal moulds 64, thus with compare with the occasion of air cool metal mould, can shorten the cooled and solidified time of motlten metal, the output of increase metal tube.And, in this centrifugal casting equipment, because for storing the casing 63 non-rotary structures of cooling water 67, so do not need the sealing etc. of complicated structure at the connecting portion (not shown) of cooling water ingress pipe 74 or cooling water discharge pipe 75.Thereby, can corresponding to the degree of the sealing that does not need complicated structure with cost of equipment suppress low price.
But; In this centrifugal casting equipment; Owing to only be to support metal die 64 from the below by a pair of backing roll 65,66; So if under the situation that metal die 64 is rotated at a high speed, metal die 64 can move vibration to the top floating ground, the danger that exist the wall unevenness or the generation of the metal tube of manufacturing to fracture, crackle etc. causes quality to descend.Because 64 rotations under low speed of metal die are smaller by the plus-pressure that centrifugal force produces, so the problem that also exists fine and close advantage of the quality of the metal tube of casting by centre spinning method or the few advantage of alloy not to demonstrate fully.
As to the formation of these problems, that kind shown in figure 17, consider be provided with on the formation base shown in Figure 15 stop metal die 64 to above the pressure roller 69 that moves.According to this structure, owing to metal die 64 does not move to the top, so, can prevent the undesirable conditions such as wall unevenness of metal tube thus even when metal die 64 is rotated at a high speed, also can be controlled at situation Min. in vibrations such as above-below directions.In addition, owing to can make metal die 64 rotation at a high speed well, so can increase the plus-pressure that produces by centrifugal force, the metal tube of the centre spinning method advantage that can find full expression densification and alloy are few.
In addition, in centrifugal casting equipment shown in Figure 17, constitute in the bottom of casing 63 wheel 71 is installed, make it along moving freely on the track 73 that is laid on the basis 72.And, form this centrifugal casting equipment and can move to the donor site of motlten metal or the taking-up position of metal tube etc.
But; In the formation of centrifugal casting equipment shown in Figure 17; Because the bearing position of backing roll 65,66 and pressure roller 69 is confirmed on the regulation position; So, a plurality of centrifugal casting equipments to size that should metal die 64 must be set, the problem that exists cost of equipment to increase considerably respectively if keep under the situation of diameter different metallic mould 64 at the multiple metal tube of corresponding different-diameter.
As to method that should problem; For changing the size of 65,66 of backing rolls; Consider to constitute to make the bearing position of backing roll 65,66 removable; Or liftably dispose pressure roller 69, and then, also need consistently dispose relative height adjustment mechanism with the catheter position that injects motlten metal.At this moment, compare, because it is just enough that a centrifugal casting equipment is set, so can reduce cost of equipment with the situation that a plurality of centrifugal casting equipments are set respectively separately.But; In the occasion of using the centrifugal casting equipment that constitutes like this; When being replaced by the metal die 64 of different size, the people must get in the casing 63 etc., the position of adjustment backing roll 65,66 or the position of pressure roller 69 etc.; This adjustment operation needs long time, and has the problem that when carrying out this adjustment operation centrifugal casting equipment is stopped.That is, must centrifugal casting equipment be stopped when changing metal die 64, the problem that exists the centrifugal casting equipment running rate to reduce
In the formation of centrifugal casting equipment shown in Figure 17; When the size of the pipe of corresponding manufacturing is changed the metal die 64 of different size; Must carry out the large-scale operation of on the lower frame 61 of box roughly, pulling down loam cake 62; This operation needs for a long time, the problem that exists the centrifugal casting equipment running rate further to reduce.
In addition, in rotation water tank type centrifugal casting equipment shown in Figure 14, also there is similar problem.When changing the metal die 51 of different size; Must be after metal die 51 and sleeve 52 be pulled down a part of sealing 54; These metal dies 51 and sleeve 52 56 taking-ups along axis direction from housing; When carrying out this operation, have to make centrifugal casting equipment to stop, and the operation etc. of pulling down a part of sealing 54 also need for a long time.In addition; Consider since driving force transferring elements 58 by constituting the band of the rotary driving force of motor 57 to sleeve 52 transmission; Connect this driving force transferring elements 58 of housing 56 ground configuration, so remove the operation of this driving force transferring elements 58 or the position of metal die 51 and the corresponding to relative altitude adjustment operation of the position of injecting motlten metal are all needed for a long time.That is to say, in rotation water tank type centrifugal casting equipment shown in figure 14, when changing metal die 51, must stop centrifugal casting equipment for a long time, the shortcoming that exists the centrifugal casting equipment running rate to reduce.
Summary of the invention
The present invention is the invention that will address the above problem; Its objective is the replacing of a kind of centrifugal casting equipment and the metal die method that provides; Can the different multiple metal die of corresponding diameter and do not cause increasing considerably of cost of equipment; And can centrifugal casting equipment running dwell time be controlled at Min. when changing metal die, can improve the running rate of centrifugal casting equipment.
In order to address the above problem; Centrifugal casting equipment of the present invention, it rotates around the axle center, flows into motlten metal in the inside of metal die simultaneously through the metal die that makes drum, utilizes centrifugal force cast metal pipe; Use the water quench metal die from the outside in when casting; It is characterized in that having: housing, it is provided in the donor site of motlten metal; Inside casing, it is come in and gone out at the housing internal freedom and to change under the state that keeps metal die to rotate freely around the axle center; The cooling water introducing mechanism, it imports cooling water between inside casing that is equipped on housing inside and metal die; The rotary driving force transmission mechanism, it transmits rotary driving force to the metal die that remains in inside casing and makes its rotation.
According to this formation; In the stage of centrifugal casting equipment running; Be provided in the inside casing different inside casing inner the outside of housing, in this inside casing, keep new metal die simultaneously, can carry out the positioning work etc. of the maintenance attitude of the relative inside casing of metal die in advance with being provided in the centrifugal casting equipment housing.Thereby; In the moment that the centrifugal casting operation is accomplished; Move on to the inside casing of the metal die that has kept in the centrifugal casting operation, having used the outside of housing; Replace, make the inside casing that maintains new metal die move to the inside of housing, can carry out the replacing operation of the metal die after the centrifugal casting operation is accomplished at short notice with this.Its result, the dwell time of the centrifugal casting equipment in the time of can changing operation to metal die is suppressed at Min., can improve the running rate of centrifugal casting equipment.
In addition, centrifugal casting equipment of the present invention is characterized in that, inside casing is adapted to relative housing along freely coming in and going out on the direction in axle center.
Constitute according to this, adopt fairly simple structure, be adapted to the relative housing of inside casing and freely come in and go out.
In addition; Centrifugal casting equipment of the present invention; It is characterized in that, in the discrepancy sliding-contact mechanism that is being provided with on the inside casing when relatively housing is come in and gone out with the housing sliding-contact, on the housing along being provided with on the direction in axle center and the guide portion of the common sliding-contact of discrepancy sliding-contact mechanism of each inside casing.
Thus, in the size of inside casing not simultaneously, each inside casing is is successfully come in and gone out in common housing inside.
In addition; Centrifugal casting equipment of the present invention; It is characterized in that an end of metal die remains under inside casing and the inside casing importing housing internal state, is adapted to from inside casing and housing and gives prominence at this metal die, at this protuberance the rotary driving force transmission mechanism is installed partly.
According to this formation, when changing metal die, can be easily and pull down the driving force transferring elements such as rotating band that are hung on the rotary driving force transmission mechanism at short notice, operating efficiency is good.
In addition, the replacing method of metal die of the present invention, it uses following centrifugal casting equipment; It rotates around the axle center, simultaneously flows into motlten metal in the inside of metal die through the metal die that makes drum, utilizes centrifugal force cast metal pipe, when casting, uses the water quench metal die from the outside; It is characterized in that, keep metal die to rotate freely, be provided in the housing at casting position relatively around the axle center; Can freely come in and go out sets the inside casing that inside can import cooling water with changing, in the stage of centrifugal casting equipment running, is provided in the inside casing different inside casing inner with being provided in the centrifugal casting equipment housing outside of housing; On this inside casing, keep new metal die simultaneously; In the moment that the centrifugal casting operation is accomplished, move on to the outside of housing to the inside casing of the metal die that has kept in the centrifugal casting operation, having used, replace; Make the inside casing that maintains new metal die move to the inside of housing, carry out the replacing operation of metal die with this.
According to the replacing method of this metal die, in the stage of centrifugal casting equipment running, can keep new metal die being provided on the outside inside casing of housing, carry out the positioning work etc. of the maintenance attitude of this new relative inside casing of metal die in advance.Thereby, the replacing operation of the metal die in the time of can carrying out centrifugal casting operation completion at short notice.Its result, the dwell time of the centrifugal casting equipment in the time of can be the replacing operation of metal die is suppressed at Min., improves the running rate of centrifugal casting equipment.
In addition, according to the replacing method of this centrifugal casting equipment and metal die, beyond the inside casing that is provided with metal die guide and housing guide, owing to can tackle with cover parts, so can make the increase of cost of equipment be suppressed at Min..
According to the present invention as described hereinbefore; Through the inside casing that keeps metal die around the axle center is set in the housing of freely coming in and going out with rotating freely with changing; In the stage of centrifugal casting equipment running; Can keep new metal die being equipped on the outside inside casing of housing, can carry out the positioning work etc. of the maintenance attitude of this new relative inside casing of metal die in advance.With this, can be controlled at Min. to the dwell time of centrifugal casting equipment, improve running rate.In addition, owing to housing can be tackled with one, so can the increase of installation cost be controlled at Min..
In addition; When coming in and going out and the discrepancy sliding-contact mechanism of housing sliding-contact through be arranged on relative housing at inside casing; On the housing along the discrepancy sliding-contact mechanism that each inside casing is set on the direction in axle center the guide portion of common sliding-contact; Even not simultaneously in the size of inside casing, each inside casing is come in and gone out in common housing inside smoothly and apace, further improve running rate thus.
In addition, through being located at rotary driving part at the position of giving prominence to from the housing end in the metal die, like this; Can be when changing metal die; Pull down the driving force transferring elements such as rotating band that hang on the rotary driving part easily, can carry out the operation of pulling down of this moment at short notice, operating efficiency is good.
Description of drawings
Fig. 1 (a) and Fig. 1 (b) relate to the whole partial cutaway front view of centrifugal casting equipment of the embodiment of the invention respectively;
Fig. 2 (a) and Fig. 2 (b) relate to the front section view of the housing of this centrifugal casting equipment respectively;
Fig. 3 (a) and Fig. 3 (b) relate to the partial cutaway front view of the inside casing (large-scale) of this centrifugal casting equipment respectively;
Fig. 4 (a) and Fig. 4 (b) relate to the partial cutaway front view of this centrifugal casting equipment inside casing (small-sized) respectively;
Fig. 5 (a) and Fig. 5 (b) are the front section view and the side sectional views of supply condition that is used to represent the cooling water of this centrifugal casting equipment;
Fig. 6 (a) and Fig. 6 (b) are the front section view and the side sectional views of supply condition that is used for representing the housing cooling water of this centrifugal casting equipment;
Fig. 7 is the front section view of supply condition that is used for representing the inside casing cooling water of this centrifugal casting equipment;
Fig. 8 (a) and Fig. 8 (b) are the front section view and the side sectional view of the housing of this centrifugal casting equipment;
Fig. 9 is the enlarged drawing of partial cutaway major part of the large-scale inside casing of this centrifugal casting equipment;
Figure 10 (a) and Figure 10 (b) are the metal die guide of the medium-and-large-sized inside casing of this centrifugal casting equipment of expression and the side sectional view of housing guide;
Figure 11 is the partial cutaway major part enlarged drawing of the middle-size and small-size inside casing of this centrifugal casting equipment;
Figure 12 (a) and Figure 12 (b) are the metal die guide of the middle-size and small-size inside casing of this centrifugal casting equipment of expression and the side sectional view of housing guide;
Figure 13 (a) and Figure 13 (b) are respectively the amplification views of the socket side in this centrifugal casting equipment;
Figure 14 is the cutaway view of existing centrifugal casting equipment;
Figure 15 is the cutaway view of another existing centrifugal casting equipment;
Figure 16 is the figure of the profile of above-mentioned another the existing centrifugal casting equipment of expression;
Figure 17 is the cutaway view of existing centrifugal casting equipment in addition.
The specific embodiment
Below, the replacing method of the centrifugal casting equipment and the metal die of the embodiment of the invention is described with reference to accompanying drawing particularly.Fig. 1 (a) and Fig. 1 (b) relate to the whole partial cutaway front view of centrifugal casting equipment of the embodiment of the invention respectively; Fig. 2 (a) and Fig. 2 (b) are respectively the front section views of the housing of this centrifugal casting equipment; Fig. 3 (a), Fig. 3 (b), Fig. 4 (a) and Fig. 4 (b) are respectively the partial cutaway front views of the inside casing of this centrifugal casting equipment.In addition, Fig. 1 (a), Fig. 2 (a), Fig. 3 (a), Fig. 4 (a) expression are used to cast the centrifugal casting equipment of using along the short metal die of the short metal tube of the lengthwise dimension of axis direction; Fig. 1 (b), Fig. 2 (b), Fig. 3 (b), Fig. 4 (b) expression are used to cast the centrifugal casting equipment of using along the long metal die of the long metal tube of the lengthwise dimension of axis direction.
Like Fig. 1 (a) to shown in Fig. 4 (b); Centrifugal casting equipment of the present invention; It flows into motlten metal through metal die 1 X rotation around the axle center, the while that makes drum in the inside of metal die 1; Utilize metal tubes 10 such as centrifugal force casting cast iron pipe, wherein possess: housing 3, it is provided in the donor site of motlten metal; Inside casing 2, it is keeping metal die 1 under the state that axle center X rotates freely, and changes freedom housing 3 inner discrepancy.At this, inside casing 2 is provided with the inside casing of a plurality of sizes (a plurality of diameters and length), at this embodiment, selects inside casing 2 that coincide with metal die 1 size and the inside that can be accommodated in housing 3.In addition, using as common elements of the length of coincideing with short metal die 1 in inside casing 2 or the housing 3 under the situation of long metal die 1, constitutes at said inside casing 2 or corresponding auxiliary inside casing 2 ' or the auxiliary housing 3 ' of connecting of its length direction of housing 3 upper edges.
In each inside casing 2, be provided with that the state that rotates freely with the X around the axle center keeps the metal die maintaining body 4 of metal die 1 and when relative housings 3 discrepancy of inside casing 2 and the discrepancy sliding-contact mechanism 5 of housing 3 sliding-contacts.Keep inside casing 2 its sliding-contact mechanisms 5 of coming in and going out of metal die 1 to be configured to; With the state of being located at housing 3 as guide rail 18 sliding-contacts of guide portion under, freely come in and go out with axle center, upper edge, the position directions Xs of housing 3 outsides being accommodated in housing 3 inner reception positions.In addition, the Reference numeral 9 among Fig. 1 (a), Fig. 1 (b) etc. is inside casing 2 location and the fixing inside casing fixed mechanism that are accommodated in the housing 3.
The both ends of metal die 1 (with socket 10a and each corresponding end of birdsmouth 10b of the metal tube 10 of manufacturing) are projected into the side of inside casing 2; Metal tube 10 metal die 1, that become manufacturing accept oral-lateral (below; Only claim to accept oral-lateral) end 1b side; Rotary driving force transfer part 6 as the rotary driving force transmission mechanism is set; It produces the rotary driving force from the drive motors outside the figure of the driving force that is used for rotating metallic mould 1 via rotating band 33 (in Fig. 9, Figure 11, representing with imaginary line) transmission, and transmits this rotary driving force to metal die 1.,, in centrifugal casting equipment,, say so in detail the cooling water importing portion 7 as the cooling water introducing mechanism that imports cooling water W is set between inside casing 2 and metal die 1 to shown in Figure 7 like Fig. 5 in the inside of inside casing 2; In the inside of inside casing 2, say so in detail the cooling water discharge portion 8 as the cooling water output mechanism that discharges cooling water W is set between inside casing 2 and the metal die 1.In addition, cooling water W is basically with respect to inside casing 2 importings and discharge, but peristome 2a that also can be through being located at inside casing 2 etc. import between housing 3 and the inside casing 2.In addition, to shown in Figure 7, cooling water importing portion 7 and cooling water discharge portion 8 are set on inside casing 2 and housing 3, but in other figure, represent with the state that has omitted these cooling water importing portions 7 and cooling water discharge portion 8 like Fig. 5.
Below, specify each several part.
The metal tube of being cast (cast iron pipe) 10 has the metal tube of multiple diameter or length; To diameter that should metal tube 10; The metal die that multiple diameter or length are also arranged as the metal die of casting 1; So, two kinds of different inside casings 2 of diameter (connecting auxiliary inside casing as required at longitudinally in the long occasion of metal die 1 etc.) or such as stated for corresponding with long metal die 1 and be connected on the auxiliary inside casing 2 ' on the corresponding inside casing 2 of length and weak point metal die 1 are set for corresponding these various metal dies 1 well.In this embodiment, about the size of diameter, use large-scale inside casing 2A and small-sized these two kinds of inside casings of inside casing 2B as inside casing 2.
Shown in Fig. 9 to Figure 12 waits, in inside casing 2, be roughly cylindric (section is circular), (at this embodiment for everywhere) is provided with metal die maintaining body 4 in many places on axis direction devices spaced apart ground at this embodiment.Metal die maintaining body 4 is made up of with roller 11 three rotations that are connected to from the outside on the metal die 1, and rotation freely supports each rotation to be supported by the supporting slice portion that forms in pairs highlightedly laterally from inside casing 2 13 with the bolster 12 of roller 11.In addition, in inside casing 2 with rotation with the corresponding position opening of roller 11, rotate the inside that protrudes into inside casing 2 with roller 11 through this peristome 2a.Rotation is disposed with the attitude parallel with the axle center X of metal die 1 with the axle center of roller 11; Utilize these rotations with roller 11; Form under the state of identical axle center X at metal die 1 and inside casing 2, metal die 1 in the inside of inside casing 2 so that X rotates freely that state is held around the axle center.In addition; In this embodiment; The position of inserting logical bolster 12 in the supporting slice portion 13 is formed on along on the slotted hole 13a of the extend radially of inside casing 2, the radial position of adjustment bolster 12 relative inside casings 2, and constituting thus can be in 2 scope that possibly accommodate of each inside casing; With respect to the metal die 1 of multiple diameter, utilize rotation to keep (representing simply) well by Figure 10 (a), Figure 12 (a) with roller 11.In addition, bolster 12 usefulness for example nut etc. are fixed on along on the position arbitrarily of slotted hole 13a, but it is not limited thereto.
In addition, in the outside of inside casing 2, (this embodiment is three places) is equipped with the sliding-contact mechanism 5 of coming in and going out in many places with respect to axis direction devices spaced apart ground.Shown in Fig. 9 to Figure 12 waits; Come in and go out sliding-contact mechanism 5 by utilizing supporting arm 14 rotations of extending to two skew backs below from inside casing 2 freely to support two of its rotating shaft to move and constitute with roller 15; These move with roller 15 and can on guide rail 18, advance by the state with sliding-contact, and the ground configuration is extended along axis direction in said guide rail 18 basifacial two positions in outer frame 3.Thereby, being loaded under the state on the guide rail 18 with roller 15 mobile, inside casing 2 can move along axis direction.
In addition, in housing 3, be provided with the sliding-contact mechanism 5 of coming in and going out the position directly over the position, being equipped with two is urged arm 17 with extending to the both sides oblique upper from inside casing 2.And; Be positioned under the state on the inner assigned position of housing 3 at inside casing 2; Push part 16 through being utilized among the spatial portion 2b that is located at housing 3 tops configuration freely, pushing is urged arm 17 from the top, makes inside casing 2 be fixed on the assigned position (regular position).In addition, the spatial portion 2b that push part 16 can be gone up and down forms through being surrounded by the concavity lid 19 that is fixed on housing 3 tops, and the bolt 20 of pushing that is gone out to move back by ability break-through concavity lid 19 makes push part 16 location.And, by these push part 16 or be urged arm 17 etc. and constitute inside casing fixed mechanism 9.In addition; Be urged arm 17 inside casing 2 in housing 3 when axis direction moves; Not with scope that the upper inside wall face of housing 3 contacts in, extend and form to the top as far as possible, even in different types of inside casing 2, also can make the height of upper end of the arm 17 that is pressed identical.
In this embodiment; Body in the housing 3 except the chassis portion 26 (with reference to Fig. 5 (b), Fig. 6 (b)) that is located at its underpart is the general cylindrical shape shape; Be configured to keep the inside casing 2 of metal die 1 in housing 3, to locate, make the body of metal die 1, inside casing 2 and housing 3 become concentric through making.In addition; Size (diameter) according to inside casing 2; Make the diameter of inside casing 2 more little, support to move with the supporting arm 14 of roller 15 or be urged arm 17 and form longly more diametrically, no matter under the situation of which inside casing 2; Move with roller 15 and all contact well and be directed, be urged arm 17 and can be urged parts 16 and push well and locate with the guide rail 18 of housing 3.
Shown in Figure 13 (a), Figure 13 (b) are simple; Inside casing 2 or with auxiliary inside casing 2 ' that this inside casing 2 is connected in, on the end portion of the side (hereinafter to be referred as the socket side) of the socket 10a of centrifugal casting metal tube 10; The socket side inside casing pipe box 27 usefulness bolts of the shape that contacts with the outer peripheral face of the socket side end 1a of metal die 1 etc. are installed with detachable state; On the inner peripheral surface of socket side inside casing pipe box 27, seal 28 is housed, sealing part 28 so that the no-leak modes of cooling water in the inside casing 2 carry out.In addition; On the end 3a of the socket side of housing 3; The socket side housing pipe box 29 of the shape that contacts with inside casing 2 socket side outer peripheral faces is installed with detachable state with bolt etc.; On the inner peripheral surface of socket side housing pipe box 29, seal 30 is installed, sealing part 30 so that the no-leak modes of cooling water in the housing 3 seal.In addition, shown in Figure 13 (a), the socket side end 2f of inside casing 2 installs the flanged plate 36 of accepting socket side inside casing pipe box 27 in the end of inside casing 2, via these flanged plate 36 mounting socket side inside casing pipe boxes 27 at metal die 1 in short-term.On the other hand, when metal die 1 length, shown in Figure 13 (b), integrally formed flange portion 36 ' on the end of the auxiliary inside casing 2 ' that is connected with inside casing 2 is via this flange portion 36 ' mounting socket side inside casing pipe box 27.That is, no matter under any circumstance can use unitized inside casing 2.
At this, position 2d such as Fig. 9 or shown in Figure 11 near the end of accepting oral-lateral in the inside casing 2 are expanded into flange shapely with a little low-lying state in axis direction socket side, form from interior all sides and be entrenched on the end of housing 3.And; Further covering circular the 22a that near the mode of the position 2d end of this inside casing 2 disposes birdsmouth side pipe cover 22 from the side, the birdsmouth side end 2f one of the birdsmouth side end 3d of the peripheral part of this circular 22a and housing 3 and inside casing 2 reinstates bolt etc. and fixes.In interior all sides of birdsmouth side pipe cover 22, form the cylindrical portion 22b that extends to the side from the inner peripheral of circular 22a, on the periphery of this cylindrical portion 22b, freely support said rotary driving force transfer part 6 via 23 rotations of bearings such as ball bearing.Rotary driving force transfer part 6 is the driven pulleys that drive via rotating band 33 with the outer drive motors of figure; On this rotary driving force transfer part 6; Via the rotational force transmitting part that roughly is flanged drum 31 that extends to the inside from this rotary driving force transfer part 6, birdsmouth side end 1b and fixing birdsmouth that clamping metal die 1 is installed are with installing component 32A, 32B.Thereby; The rotary driving force that is delivered to rotary driving force transfer part 6 via rotational force transmitting part 31, birdsmouth with installing component 32A, 32B; Be delivered to the birdsmouth side end 1b of metal die 1; Thus, can rotary driving force be provided to the metal die of freely supporting with 4 rotations of metal die maintaining body 1, and it is rotated well.In addition; On rotational force transmitting part 31; Form the approaching inner cylinder portion 31a that extends in inner peripheral surface ground in the face of the cylindrical portion 22b of birdsmouth side pipe cover 22; Be embedded in circular the 22a of birdsmouth side pipe cover 22 and the seal 21 of the connecting portion of cylindrical portion 22b and contact, make inside casing 2 interior cooling water W can not go out from the birdsmouth side leakage thereby seal with the leading section outer peripheral face of the inner cylinder portion 31a of rotational force transmitting part 31.
Next, describe based on the structures that import, discharge cooling water W in the just relative inside casing 2 of Fig. 5 to Fig. 7.In this embodiment; At two positions, top of housing 3, be equipped with at the housing side cooling water importing 7a of portion that radially connects this position, importing cooling water W, in addition; On the position corresponding to the said housing side cooling water importing 7a of portion in inside casing 2, be formed with the 7b of importing portion of branch.And, constitute the cooling water importing portion 7 that imports cooling water W inside casing 2 inside through these housing side cooling waters importing 7a of portion and the 7b of importing portion of branch.In addition; As shown in Figure 5, when taking in inside casing 2, connect housing side cooling water importing 7a of portion and the 7b of importing portion of branch in the inside of housing; Form cooling water importing portion 7; Also can be like Fig. 6, shown in Figure 7, when inside casing 2 is positioned at housing 3 outside, housing side cooling water importing 7a of portion and the 7b of importing portion of branch is divided open.
In addition; In this embodiment, at three positions, bottom of housing 3, be equipped with at the housing side cooling water discharge 8a of portion that radially connects this position, discharge cooling water W; In addition; On the position corresponding to the said housing side cooling water discharge 8a of portion in inside casing 2, form the 8b of discharge portion of branch, constitute the cooling water discharge portion 8 that discharges cooling water W from the inside of inside casing 2 through these housing side cooling waters discharge 8a of portion and the 8b of discharge portion of branch.In addition; As shown in Figure 5, when taking in inside casing 2, connect housing side cooling water discharge 8a of portion and the 8b of discharge portion of branch in the inside of housing; Form cooling water discharge portion 8; Also can be like Fig. 6, shown in Figure 7, when inside casing 2 is positioned at housing 3 outside, housing side cooling water discharge 8a of portion and the 8b of discharge portion of branch is divided open.
As stated; After cooling water W imports the inside of inside casing 2 from cooling water importing portion 7 basically; Discharge from cooling water discharge portion 8, but also can be through the peristome 2a that is used to that rotation is charged into roller 11 and is provided with etc., not only import cooling water W in the inside casing 2 and also import in the housing 3.Thereby integral body are watertight structure in the housing 3, and becoming cooling water W can be to the structure of the external leakage of housing 3.
In addition, in this embodiment, wheel 25 is installed, makes the chassis shape, form on the track (not illustrating) of regulation and move freely (advancing) in the bottom of housing 3.And, can make this centrifugal casting equipment move to the donor site of motlten metal or the taking-up position of metal tube 10 etc.
In said structure, when centrifugal casting, keep the inside casing 2 of metal die 1 to be housed in the housing 3, under this state, import cooling water W to the inside of inside casing 2 and the inside of housing 3.And; Under this state; On one side make metal die 1 rotation utilize the internal feed motlten metal to metal die 1 such as cast conduit on one side via rotary driving force transfer part 6, utilize centrifugal force and with cooling water W in periphery cool metal mould 1, cast.
Thus; Since be when casting through making cooling water W forced circulation from the structure of external refrigeration metal die 1; Compare with simple situation with air cool metal mould 1; The cooled and solidified time of the motlten metal in the metal die 1 that flows into behind the motlten metal can be shortened, the productivity ratio of metal tube 10 can be increased.
Below, the operation when in above-mentioned formation, changing metal die 1 is described.
At first; In the stage that the metal die (being called metal die before changing) 1 that also is to use before changing turns round centrifugal casting equipment, be provided in metal die (call and change the back metal die) 1 in the inside casing 2 that is disposed at housing 3 outside other positions as the new replacing object of next changing.At this moment, in the inside casing 2 of this external position, change back metal die 1, on the regulation position of inside casing 2, rotated freely by good maintenance so that should change back metal die 1 through its metal die maintaining body 4 adjustment in advance.
After this, the moment of the centrifugal casting end of job of metal die 1 is pulled down rotating band 33 from rotary driving force transfer part 6 before replacing, simultaneously, discharges cooling water W from cooling water discharge portion 8, and that unclamps inside casing fixed mechanism 9 pushes bolt 20.In addition, pull down socket side housing pipe box 29, simultaneously, pull down the birdsmouth side end 3d of housing 3, the end 2d that accepts oral-lateral of inside casing 2 and the bolt that birdsmouth side pipe cover 22 combines from the end 3a of the socket side of housing 3.Thus, with respect to housing 3, keep the inside casing 2 of metal die 1 to become the state that can move along the axle center directions X, directions X moves along the axle center so make inside casing 2, is fetched into the outside of housing 3.At this moment, the sliding-contact mechanism 5 of coming in and going out is set in inside casing 2, can moves inside casing 2 owing to move to be loaded under the state on the guide rail 18 with roller 15 at this, thus can be easily and promptly carry out the operation of shifting out inside casing 2 from housing 3, and operating efficiency is good.
Secondly, make another inside casing 2 that maintains replacing back metal die 1 in advance move and accommodate the inside of housing 3.At this moment, owing to can be loaded in mobile inside casing 2 under the state on the guide rail 18 with roller 15 the mobile of the discrepancy sliding-contact mechanism 5 that is installed on inside casing 2, thus can be easily and promptly carry out putting into inside casing 2 operation of housing 3, operating efficiency is good.After this, mounting socket side housing pipe box 29 on the end 3a of the socket side of housing 3 simultaneously, combines the birdsmouth side end 3d of housing 3 and the end 2d that accepts oral-lateral and the birdsmouth side pipe of inside casing 2 to overlap 22 with bolt.In addition, that tightens inside casing fixed mechanism 9 pushes bolt 20, makes under the state of inside casing 2 location at housing 3 relatively and fixes.In addition, under this state, state is held the metal die maintaining body 4 that metal die 1 also can be through inside casing 2 to rotate freely.After this; On rotary driving force transfer part 6, hang rotating band 33; Drive the outer drive motors rotation of figure, make metal die 1 rotation via rotating band 33 and rotary driving force transfer part 6, rotational force transmitting part 31, simultaneously; Import cooling water W from cooling water importing portion 7 concurrently with it, can begin ensuing casting manipulations rapidly thus.
According to this formation and method; When changing metal die 1; In the stage (last casting manipulations is accomplished the stage before) that makes the centrifugal casting equipment running with metal die 1 before changing; In being equipped on another outside inside casing 2 of housing 3, set new conduct and change the metal die of object (changing the back metal die) 1, the metal mould 1 that can carry out trouble in advance and the rotation of metal die maintaining body 4 are with the positioning work of roller 11 etc.
With this, the inside casing 2 that can when the centrifugal casting operation before metal die is changed is accomplished, only be replaced by the metal die 1 that maintains new replacing object gets final product, and thus, can be suppressed at Min. to the time that centrifugal casting equipment is stopped, and can improve running rate.
In addition, be provided with the housing 3 of inside casing fixed mechanism 9 owing to can tackle, so can the increase of installation cost be suppressed at Min. with parts.
In addition, according to above-mentioned formation, can be owing to can be adapted to inside casing 2 with respect to housing 3 along freely coming in and going out on the direction of axle center X, so can adopt fairly simple structure to make inside casing 2 relative housings 3 discrepancy.That is to say, though also considered housing when up and down or laterally for example separated into two parts is come in and gone out inside casing, separately housing is come in and gone out inside casing, need cut apart this moment such as structure or connection structure, seal construction etc. on a large scale.Relative therewith; As present embodiment; Through inside casing 2 being adapted to relative housing 3 along freely coming in and going out on the direction of axle center X, do not need to cut apart on a large scale structure or connect structure, seal construction etc., can make inside casing 2 relative housings 3 come in and go out well and take in.
In addition, according to above-mentioned formation, because on inside casing 2; Be provided with when housing 3 is come in and gone out relatively and the discrepancy sliding-contact mechanism 5 of housing 3 sliding-contacts; On housing 3, at guide rail along 5 common sliding-contacts of discrepancy sliding-contact mechanism that each inside casing 2 is set on the direction in axle center 18, so; Under the size condition of different of inside casing 2, each inside casing 2 is come in and gone out in the inside of common housing 3 well.
In addition; As inside casing 2; Amount of movement during metal die 1 that can installation dimension in inside casing 2 is different, rotation roller 11 positions adjustment usefulness inhibition in lack as above-mentioned, correspondingly is provided with the inside casing of multiple size, so also can improve operating efficiency thus with the size of metal die 1.In addition, in the above-described embodiments, narrated the situation of the inside casing 2 that two kinds of footpaths are set, but the inside casing 2 of different sizes more than three kinds also can be set.In addition; As stated; Inside casing 2 or the housing 3 corresponding with short metal die 1 are set, with respect to the metal die of growing 1, through linking auxiliary inside casing 2 ' or auxiliary housing 3 '; Unitized inside casing 2 capable of using or housing 3 come the increase of suppression equipment expense, and the metal die 1 of corresponding all lengths well.
In addition; According to above-mentioned formation owing to directly over the position that is provided with the sliding-contact mechanism 5 of coming in and going out, dispose inside casing fixed mechanism 9, so the pressing component that utilizes inside casing fixed mechanism 9 16 from above push when being pressed arm 17; Vertically act on roller 15 from mobile from the guide rail 18 of the load of pressing component 16; Can position well, and, can increase the weight of effect displacement on inside casing 2 and crooked situation is suppressed to Min..Promptly; With respect to the axle center directions X; When the load point of the load that is produced by inside casing fixed mechanism 9 and the sliding-contact mechanism 5 of coming in and going out mobile was positioned at diverse location with roller 15, the position between them can make the inside casing deflection owing to bending load, but according to said structure; Just this unfavorable condition can not take place, can position well.
In addition, according to above-mentioned formation, as inside casing fixed mechanism 9; Near significantly to extend to the top 16 the configuration position from inside casing 2 to pressing component mode forms the arm 17 that is pressed; So,, can the shift motion of pushing bolt 20 that pressing component 16 is moved be suppressed at Min. by the fixing inside casing 2 of inside casing fixed mechanism 9; Can carry out the operation of this moment at short notice, operating efficiency is good.In addition, owing to the height that forms the upper end that in different types of inside casing 2, also can make the arm 17 that is pressed is identical, so, under the situation of any inside casing 2, can both likewise position operation at short notice and remove positioning operation.In addition, in the above-described embodiments, narrated by the situation of pushing bolt 20 pushing pressing components 16, but also be not limited thereto, also can constitute and utilize oil hydraulic cylinder etc. to push.
In addition; According to above-mentioned formation; Cooling water W is mainly with housing 3 inside that relatively set near the state of metal die 1, promptly mainly circulate in narrow space, so, have the temperature treatment that carries out cooling water W easily, the advantage that can cool off well.That is, when not establishing inside casing 2, when only constituting,,, being difficult to come cool metal mould 1 with the cooling water of uniform temperature so the temperature change of cooling water becomes greatly easily because the importing space of cooling water is wide cooling water importing housing 3 inside.Relative therewith; According to the present invention; Because cooling water W is imported into, discharges with respect to the inside of the housing 3 that is connected with metal die 1; So the temperature of the cooling water W that discharges from cooling water discharge portion 8 through management etc. can make the cooling water W of the temperature that is suitable for casting contact with metal die 1 well, can carry out centrifugal casting well.
In addition, in the above-described embodiments, owing to make the circle with metal die 1 concentric to the section shape of inside casing 2, so have the advantage that is circulated well in the space of cooling water W between inside casing 2 and metal die 1.But, also being not limited to this, the section shape of inside casing 2 also can form for example quadrangle or hexagon except circle.In addition, the shape of housing 3 also is not limited to circular section shape, and its section shape also can form for example quadrangle or hexagon except circle.
In addition; In the above-described embodiments; Owing to be located at rotary driving force transfer part 6 from outstanding position, the end of housing, when changing metal die 1, can dismantle the rotating band 33 that is hung on the rotary driving force transfer part 6 easily; Can carry out the field-strip of this moment at short notice, operating efficiency is good.
In addition; In the above-described embodiments; Narrated four pairs of metal die maintaining bodies 4 be set, be provided with the situation of three pairs and three come in and go out sliding-contact mechanism 5 and inside casing fixed mechanisms 9 on inside casing 2; But be not limited to this, the metal die maintaining body 4 or the sliding-contact mechanism 5 of coming in and going out also can each be provided with at least two pairs, and inside casing fixed mechanism 9 can each be provided with at least two.
In addition; In the above-described embodiments, narrated conduct the situation of the mutually different two kinds of inside casings of diameter of a plurality of inside casing 2, its body part has been set, but also be not limited thereto; A plurality of identical shaped inside casings also can be set; Like this, owing to also can before casting is accomplished, be installed in size different metallic mould 1 in advance in another inside casing 2 in advance, so can shorten the dwell time of centrifugal casting equipment.
Claims (5)
1. centrifugal casting equipment, it rotates around the axle center, flows into motlten metal to the inside of metal die simultaneously through the metal die that makes drum, utilizes centrifugal force cast metal pipe, when casting by cooling water from the external refrigeration metal die; It is characterized in that having:
Housing, it is provided in the donor site of motlten metal;
Inside casing, it is under the state that keeps metal die to rotate freely around the axle center, and the housing internal freedom is come in and gone out and is changed relatively;
The cooling water introducing mechanism, it imports cooling water between inside casing that is equipped on housing inside and metal die; And
The rotary driving force transmission mechanism, it transmits rotary driving force to the metal die that remains in inside casing and makes its rotation.
2. centrifugal casting equipment as claimed in claim 1 is characterized in that, inside casing with respect to housing along setting with freely coming in and going out on the direction in axle center.
3. centrifugal casting equipment as claimed in claim 2 is characterized in that, on inside casing, is provided with when housing is come in and gone out relatively and the discrepancy sliding-contact mechanism of housing sliding-contact; On housing, in guide portion along the discrepancy sliding-contact mechanism sliding-contact jointly that is provided with each inside casing of confession on the direction in axle center.
4. according to claim 1 or claim 2 centrifugal casting equipment is characterized in that an end of metal die is adapted to: remain in inside casing and inside casing imports under the inner state of housing at this metal die, and outstanding from inside casing and housing; On this protuberance part, the rotary driving force transmission mechanism is installed.
5. the replacing method of a metal die; It is used for centrifugal casting equipment; This centrifugal casting equipment rotates around the axle center, flows into motlten metal to the inside of metal die simultaneously through the metal die that makes drum; Utilize centrifugal force cast metal pipe, when casting by cooling water from the external refrigeration metal die; It is characterized in that,
Keep metal die to rotate freely, can be provided in to the inside casing that inside imports cooling water with freely coming in and going out replacing and be located on the housing of casting the position around the axle center,
In the stage of centrifugal casting equipment running; To be provided in the outside of housing with another the different inside casing of inside casing that is equipped on centrifugal casting equipment housing inside; And, on this another inside casing, keep new metal die, in the moment that the centrifugal casting operation is accomplished; Make the inside casing that maintains the metal die of in the centrifugal casting operation, using move to the outside of housing; Replace, make above-mentioned another inside casing that maintains new metal die move to the inside of housing, carry out the replacing operation of metal die thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101850338A CN101428338B (en) | 2007-11-06 | 2007-11-06 | Centrifugal casting apparatus and metal mould replacing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101850338A CN101428338B (en) | 2007-11-06 | 2007-11-06 | Centrifugal casting apparatus and metal mould replacing method |
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| CN101428338A CN101428338A (en) | 2009-05-13 |
| CN101428338B true CN101428338B (en) | 2012-05-30 |
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| FR3031922B1 (en) * | 2015-01-23 | 2022-08-05 | Kubota Kk | MOLTEN METAL FEED STRUCTURE, CASTING MACHINE AND METHOD FOR PRODUCING A FOUNDRY PRODUCT |
| CN109482836A (en) * | 2018-12-27 | 2019-03-19 | 新乡市海山机械有限公司 | A kind of centrifugal casting punching block model commonality regulating device and adjusting method |
| CN113275534B (en) * | 2021-05-20 | 2022-03-11 | 燕山大学 | Manufacturing device for ultra-thick-wall large-caliber corrugated pipe and machining method thereof |
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| CN1057415A (en) * | 1990-06-19 | 1992-01-01 | 甘肃工业大学 | Vertical centrifugal metal mould casting machine for grinding ball |
| CN2476372Y (en) * | 2001-04-27 | 2002-02-13 | 大连万通工业装备有限公司 | Water-cooled metal type centrifugal tube casting machine |
| CN2691745Y (en) * | 2004-02-17 | 2005-04-13 | 王一诚 | Sand mould centrifugal casting device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057415A (en) * | 1990-06-19 | 1992-01-01 | 甘肃工业大学 | Vertical centrifugal metal mould casting machine for grinding ball |
| CN2476372Y (en) * | 2001-04-27 | 2002-02-13 | 大连万通工业装备有限公司 | Water-cooled metal type centrifugal tube casting machine |
| CN2691745Y (en) * | 2004-02-17 | 2005-04-13 | 王一诚 | Sand mould centrifugal casting device |
Non-Patent Citations (1)
| Title |
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| JP特開平6-190525A 1994.07.12 |
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