CN102814484A - Mold cooling device - Google Patents
Mold cooling device Download PDFInfo
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- CN102814484A CN102814484A CN2012101821764A CN201210182176A CN102814484A CN 102814484 A CN102814484 A CN 102814484A CN 2012101821764 A CN2012101821764 A CN 2012101821764A CN 201210182176 A CN201210182176 A CN 201210182176A CN 102814484 A CN102814484 A CN 102814484A
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- cooling water
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Abstract
The present invention provides a mold cooling device which enables the stabilization of flow of cooling water circulation in cooling paths in the mold. The mold cooling device of the invention distributes the cooling water used for cooling the mold, and supplies the water separately to a plurality of cooling paths (2a to 2e) formed inside the mold (2), enabling the cooling water circulating in the cooling paths (2a to 2e) to discharge to the outside of the mold (2) through discharge pipes (6a to 6e) connected with each of the cooling paths (2a to 2e). the cooling device is composed of a cooling water suction device which is disposed in one discharge pipe (6a) of the discharge pipes (6a to 6e) and draws the cooling water circulating in a cooling path (2a) by using negative pressure generated by the ejection of drive gas.
Description
Technical field
The present invention relates to equipment for cooling die.
Background technology
Mould (die casting) at the die casting machine of the manufacturing that is used for aluminum casting thing etc. is provided with a plurality of coolings road that is used for the mold temperature stabilisation in inside.
In patent documentation 1, disclose through the cooling water in the bosh is picked up and forms vaporificly, vaporific cooling water gushed out in the road to cooling capture heat of gasification, thus the technology of cooling die.
But, in the method for patent documentation 1, be surrounded with in inside under the situation of the mould that cools off the road complicatedly, be difficult to suitably cool off.
Patent documentation 1: (Japan) spy opens clear 63-299848 communique
Usually, between the supply pipe of cooling water and each cooling road, be provided with common branch manifold, the cooling water that will supply with from supply pipe is to each cooling road distribution and mould is cooled off equably.
Have or not obstruction etc. according to what, cooling road of the internal diameter on cooling road, total length, crooked position and different in the amount of the cooling water of each cooling road circulation; Therefore, branch manifold only merely being set is the flow that is difficult to suitably to be controlled at the cooling water that circulates in the cooling road.
At this, in part cooling road, in the amount of the cooling water of circulation than necessary flow after a little while, mold temperature can produce deviation, and because of this deviation produces the sintering of die surface, the bleb of mo(u)lding, the quality of mo(u)lding reduces.
In the past; Each link circuit in that the distribution openings of branch manifold is connected with cooling road in the mould is provided with flow control valve; On one side each flow control valve is carried out fine adjustment, on one side the amount of the cooling water that in each cooling road, circulates of control (stabilisation), the deviation of mold temperature suppressed.
Therefore, expectation can be carried out more simply and make the cooling water stabilisation that in the cooling road, circulates.
Summary of the invention
The present invention provides a kind of equipment for cooling die; Its fluid that mold cools down is used distributes and supplies with to a plurality of coolings road that is formed at mould inside respectively; Make at the fluid of each said cooling road circulation and discharge to the outside of said mould via the discharge pipe that is connected with each cooling road; It is characterized in that, at least one of said discharge pipe, be provided with the suction device that negative pressure that the injection of utilization through drive fluid produce attracts said fluid.
According to the present invention, in being connected with the cooling road of the discharge pipe that is provided with suction device, the fluid that in this cooling road, circulates attracted to the discharge pipe side through suction device.Therefore, the fluid that for example in the cooling road, circulates is under the situation of cooling water, can prevent that cooling water and vapour thereof are stranded in the cooling road, therefore, can make the cooling-water flow stabilisation.
In addition, the cooling road that is connected with the discharge pipe that is provided with suction device is compared with other cooling road, the pressure step-down, therefore, the cooling water greater amount ground circulation that is assigned with.Therefore, suction device is set, can makes the cooling water steady flow at the privileged site of mould through the discharge pipe that is connected on cooling road with the zone passage of carrying out mold cools down reliably.
Description of drawings
Fig. 1 is the summary pie graph of cooling device that possesses the cooling water suction device of embodiment;
Fig. 2 (a)～(c) is the figure of the cooling water suction device of explanation embodiment;
Fig. 3 (a) and (b) are figure of main part of the cooling water suction device of explanation embodiment;
Fig. 4 is the figure of spray nozzle part of the cooling water suction device of explanation embodiment;
Fig. 5 (a) and (b) are figure of the cooling water suction device of explanation second embodiment.
Description of symbols
1: cooling device
2: mould
2a～2e: cooling road
3: branch manifold
4a～4e: supply pipe
5: branch manifold
6a～6e: discharge pipe
7in: concentrate pipe arrangement
7out: concentrate pipe arrangement
8: gas introduction tube
9,9A: cooling water suction device (suction device)
10: main part
11: communication chamber
12: connector
14: connector
20: diffusion part
21: sharp thin tube part
22: sector tube portion
23: neck
30: spray nozzle part
31: flange part
32,32A: axial region
33: importing portion
34: ejection section
35: the taper spray nozzle part
36: fan nozzle portion
37: neck
40,50,60: attaching parts
P: pump
R: adjuster
X: central shaft
The specific embodiment
As shown in Figure 1, be provided with a plurality of coolings road 2a～2e of cooling water (fluid that cooling die is used) circulation in the inside of the mould 2 of die casting machine.The supply side of cooling road 2a～2e be connected with the distribution openings 3a～3e of the branch manifold 3 of supply side with cool off supply pipe 4a～4e that road 2a～2e is connected one to one.
The discharge side of cooling road 2a～2e be connected with the discharge pipe 6a that is connected with cooling water suction device 9 of cooling road 2a, will discharge side branch manifold 5 introducing port 5b～5e and cool off discharge pipe 6b～6e that the outlet of road 2b～2e is connected one to one.
In this cooling device 1, be assigned to each supply pipe 4a～4e and cool off road 2a～2e supply at branch manifold 3 to each from the cooling water of concentrating pipe arrangement 7in to supply with.
And in circulation and the cooling water with mould 2 coolings, the cooling water that in cooling road 2a, circulates attracted in the cooling water suction device 9 via discharge pipe 6a1 in cooling road 2a～2e.On the other hand, the cooling water that in cooling road 2b～2e, circulates is discharged via concentrated pipe arrangement 7out after importing the branch manifold 5 of discharging side via discharge pipe 6b～6e.
To supply with to cooling water suction device 9 via adjuster R from the gas that pump P sees off; Cooling water suction device 9 utilizes the negative pressure that produces to the jeting effect of the gas generation of internal spray; Attract the interior cooling water of discharge pipe 6a1 and cooling road 2a etc., discharge from the discharge pipe 6a2 that is positioned at the downstream.
Below, cooling water suction device 9 is described.
Fig. 2 is the figure of the formation of explanation cooling water suction device 9, (a) be from end on observation to plane, (b) be the A-A sectional view of (a), (c) be the enlarged drawing of the area B of (b).In addition, in Fig. 2 (a), be omitted in the diagram of the attaching parts 40,60 shown in Fig. 2 (b).
Fig. 3 is the figure of the main part 10 of explanation cooling water suction device 9, is the profile of the main part 10 of presentation graphs 2 (b) (a), (b) is the A-A sectional view of (a).
As shown in Figure 2, cooling water suction device 9 is equipped with at an end of the main part that is connected with discharge pipe 6a1 10 and is used for the spray nozzle part 30 that the gas of seeing off from pump P (driving gas) is sprayed and constitutes in main part 10.
As shown in Figure 3, in the inside of main part 10, along the axis (central shaft X) at the center through main part 10 in abutting connection with being provided with communication chamber 11 and diffusion part 20.
From end on observation, communication chamber 11 becomes circle, and the total length that its inside diameter D 1 spreads all over length direction (depth direction) is identical.Therefore, in main part 10, communication chamber 11 is divided into the space of cylindrical shape.
At the inner peripheral surface 11a of communication chamber 11, promptly 11b connects main part 10 and is formed with connector 12 at thickness direction slightly to the position that an end 10a lateral deviation of main part 10 is moved from the bottom.
The axis Y of connector 12 edges and central shaft X quadrature extends, and its cross sectional shape becomes circle.This connector 12 is along with from the leaving and hole enlargement of central shaft X, its inner peripheral surface, and the total length that spreads all over length direction is formed with negative thread 12a.
And, be provided with the recess 13 that surrounds the opening of connector 12 with predetermined distance at the outer peripheral face 10c of main part 10.
As shown in Figure 2, at connector 12 attaching parts 40 are installed.
Attaching parts 40 possess: the linking part 41 that combines with connector 12 screw threads, the flange part 42 that extends to radial outside from an end of linking part 41, the installation portion 43 that discharge pipe 6a1 is installed are formed with the through hole 44 that connects linking part 41, flange part 42 and installation portion 43 in the central authorities of attaching parts 40.
The stream that the fluid (cooling water and vapour thereof) that this through hole 44 draws from discharge pipe 6a1 side draught when being formed in 9 drivings of cooling water suction device circulates.
Linking part 41 is along with towards front and undergauge, forms with the external diameter with above-mentioned connector 12 couplings.Outer peripheral face at linking part 41 is formed with the pin thread that combines with the negative thread 12a screw thread of connector 12, and attaching parts 40 are screwed into the negative thread 12a of connector 12 with pin thread and are connected with main part 10.Under this state, the part of linking part 41 sides of the flange part 42 of attaching parts 40 and the recess 13 of main part 10 are chimeric.
Shown in Fig. 2 (c), the axial length h2 of linking part 41 is set at, the front end 41a of linking part 41 and the inner peripheral surface 11a coplane of communication chamber 11 and the length of in communication chamber 11, not giving prominence to.
Return the explanation of main part 10, as shown in Figure 3, at the inner peripheral surface 11a of communication chamber 11, be formed with negative thread 11c near the scope the connector 12 at an end 10a from main part 10.The pin thread 32d of the spray nozzle part of after screw thread is combined with on this negative thread 11c, stating 30.
11b is in abutting connection with being provided with diffusion part 20 in the bottom of communication chamber 11.
The neck 23 of diffusion part 20 is between sharp thin tube part 21 and sector tube portion 22 and constitute.
With the sharp thin tube part 21 of communication chamber 11 adjacency with the undergauge along with leaving from communication chamber 11 towards setting, 11b exposes the opening 21a of the cardinal extremity of its sharp thin tube part 21 in the bottom of communication chamber 11.Opening 21a forms circle from end on observation, forms with the inside diameter D 2 slightly littler than bottom 11b.
Clip sector tube portion 22 that neck 23 is positioned at sharp thin tube part 21 opposition sides along with leaving and hole enlargement from neck 23.The front of sector tube portion 22 form with after the connector 14 that is connected of the attaching parts 50 stated, the opening 22a of the front end of sector tube portion 22 is the 14b opening in the bottom of connector 14.
This opening 22a forms circle from end on observation, forms with the inside diameter D 3 littler than bottom 14b.
In embodiment, the inside diameter D 3 of the opening 22a of sector tube portion 22 is littler than the inside diameter D 2 of the opening 21a of sharp thin tube part 21, and is bigger than the inside diameter D 4 of neck 23.
In addition, the length L 1 of the axial sharp thin tube part 21 of central shaft X is shorter slightly than the length L 2 of sector tube portion 22, makes to bring into play jeting effect to greatest extent through the fluid of diffusion part 20 and set.
As shown in Figure 2; The attaching parts 50 that link with connector 14 have the formation same with above-mentioned attaching parts 40; The flange part 52 that possesses the linking part 51 that combines with connector 14 screw threads, extends to radial outside from an end of linking part 51, the installation portion 53 that there is pipe 6a2 in the row of installation connect linking part 51, flange part 52 and installation portion 53 and form through hole 54 in the central authorities of attaching parts 50.
When this through hole 54 is formed in 9 drivings of cooling water suction device, the stream that the fluid (driving gas, cooling water and vapour thereof) of discharging from cooling water suction device 9 circulates.
Linking part 51 is along with towards front and undergauge, forms with the external diameter with above-mentioned connector 14 couplings.Outer peripheral face at linking part 51 forms the pin thread that combines with negative thread 14a (with reference to Fig. 3) screw thread of connector 14, and attaching parts 50 are screwed into the negative thread 14a of connector 14 with pin thread and link with main part 10.
The axial length h3 of linking part 51 is identical with the degree of depth of connector 14, under attaching parts 50 and state that main part is connected, flange part 52 from axially with the other end 10b butt of main part 10, the gap between obstruction connector 14 and the linking part 51.
The inner peripheral surface 54a that is positioned at the inboard through hole 54 of linking part 51 tilts with respect to central shaft X, and inner peripheral surface 54a forms with the mode on the elongated surfaces of the inner peripheral surface 22b that is positioned at sector tube portion 22.This be because, the front in sector tube portion 22 when internal diameter sharply changes, might hinder the discharge of fluid from the smoothness of sector tube portion 22.
Be formed with the endless groove 15 of the opening that surrounds communication chamber 11, the embedded O shape ring 16 that is equipped with in this groove 15 at an end 10a of main part 10.
As shown in Figure 2, at an end 10a of main part 10, the flange part 31 of spray nozzle part 30 is from axial butt, keeps airtight in the communication chamber 11 through being located in O shape ring 16 between flange part 31 and the main part 10.
Fig. 4 is the figure of the spray nozzle part 30 of explanation cooling water suction device 9, is the profile that amplifies the spray nozzle part 30 of presentation graphs 2 (b).
Spray nozzle part 30 possesses with the annular flange portion 31 of an end 10a butt of main part 10, from the outstanding axial region 32 that forms of the central authorities of flange part 31.
Shown in Fig. 2 (a), from end on observation, be provided with in the periphery of flange part 31 and clip two-sided wide 31a, the 31b that central shaft X is parallel to each other, these two-sided wide 31a, 31b become spray nozzle part 30 and are screwed into the handle part when being installed to main part 10.
As shown in Figure 4, in the inside of spray nozzle part 30, along central shaft X abut to form the importing portion 33 of the gas that importing sees off from pump P (with reference to Fig. 1), the ejection section 34 of the gas that imports to importing portion 33.
Importing portion 33 forms with prescribed depth h4 from flange part 31; The total length that the inside diameter D 5 that is arranged in the importing portion 33 of the inboard part (figure downside) of axial region 32 spreads all over length direction is identical, and the internal diameter that is positioned at the inboard part of flange part 31 is along with leaving and hole enlargement from axial region 32.Be formed with the negative thread 33a that the pin thread of attaching parts 60 (with reference to Fig. 2) is screwed at the inner peripheral surface of the part of this hole enlargement.
With the taper spray nozzle part 35 of importing portion 33 adjacency with the undergauge along with leaving from importing portion 33 towards setting.The opening 35a of the cardinal extremity of this taper spray nozzle part 35 forms circle from end on observation, forms with inside diameter D 5.
Clip fan nozzle portion 36 that neck 37 is positioned at sharp thin tube part 35 opposition sides with the hole enlargement along with leaving from neck 37 towards setting.The opening 36a of the front end of this fan nozzle portion 36 forms circle from end on observation, and the inside diameter D 6 of opening 36a is bigger than the inside diameter D 7 of neck 37, and is narrower than the inside diameter D 5 of the opening 35a of taper spray nozzle part 35.
In addition, the length L 3 of axial taper spray nozzle part 35 is shorter than the length L 4 of fan nozzle portion 36, and utilization is brought into play jeting effect to greatest extent through the driving gas of ejection section 34 and set.
The external diameter of axial region 32 along with preceding weak point from the way of length direction the position towards front end 32a and undergauge.And, the outer peripheral face of the part of this undergauge be inclined plane 32b along with towards front end 32a to tilting with the approaching direction of central shaft X.
Therefore; Shown in Fig. 2 (c); When cooling water suction device 9 drove, 32b imported bottom 11b side along the inclined plane to be inhaled into fluids (cooling water and vapour thereof) in the communication chamber 11 from the through hole 44 of discharge pipe 6a1 side through attaching parts 40, does not hinder flowing of fluid very much.
This be because; When inclined plane 32b is positioned at respect to the parallel position of central shaft X; The mobile meeting that attracted to the fluid of communication chamber 11 through through hole 44 is tilted face 32b and hinders significantly, and the fluid that attracted in the communication chamber 11 can not carry out to moving of diffusion part 20 (sharp thin tube part 21) side glibly.
Therefore, in embodiment, the scope that is formed with inclined plane 32b of axial region 32 is installed at spray nozzle part 30 under the state of main part 10, become from the front end 32a of axial region 32 to from connector 12 to the position of flange part 31 lateral deviations from predetermined distance.
As shown in Figure 4, at axial region 32, with inclined plane 32b adjoining position, the stage portion 32c that is formed with pin thread 32d in periphery bloats setting to radial outside.
Spray nozzle part 30 is screwed into pin thread 32d the negative thread 11c that the inner peripheral surface of the communication chamber 11 of main part 10 forms and is installed on main part 10.
Shown in Fig. 4 and Fig. 2 (c), the length L 5 of axial region 32 is set at following length, that is, its front end 32a is disposed in the sharp thin tube part 21 of main part 10 near the inner peripheral surface 21b of sharp thin tube part 21, and inner peripheral surface 21b between guarantee minim gap CL.
Under this state, neck 23 sides of communication chamber 11 and sharp thin tube part 21 are communicated with via the minim gap CL between the inner peripheral surface 21b of the inclined plane 32b of axial region 32 and sharp thin tube part 21.
And, owing to the gap between the inner peripheral surface 21b of the inclined plane 32b of axial region 32 and sharp thin tube part 21 with along with the mode that narrows down towards the front end 32a of axial region 32 side disposes, therefore, clearance C L simulation ground performance is as the effect of neck.
Therefore; The gas of neck 23 is sprayed and has passed through in utilization from the fan nozzle portion 36 of ejection section 34; Making in the sharp thin tube part 21 becomes negative pressure, and the fluid that utilizes this negative pressure will attracted in the communication chamber 11 is attracted in the sharp thin tube part 21 through clearance C L, utilizes the jeting effect of this moment through the fluid of clearance C L; The negative pressure state of the space S in the communication chamber 11 becomes higher, and the 11 interior attractions of fluid that attract are higher from discharge pipe 6a1 lateral communication chamber.
Situation so that cooling water suction device 9 to be installed on the discharge pipe 6a in discharge pipe 6a～6e of Fig. 1 is an example, and the action of cooling water suction device 9 is described.
At first, priming pump P begins after cooling water suction device 9 sides are seen gas off, supplies with the gas (driving gas) by the regulation flow after the adjuster R adjusting via gas introduction tube 8 to cooling water suction device 9.
So, as shown in Figure 2, from the ejection section 34 of spray nozzle part 30 neck 23 jet gas towards diffusion part 20.
In ejection section 34, neck 37 between taper spray nozzle part 35 and fan nozzle portion 36, therefore, because of through neck 37 by high speed gas spray towards neck 23.
The gas that sprays towards the neck of diffusion part 20 23 is discharged to discharge pipe 6a2 from main part 10 through sharp thin tube part 21, neck 23 and sector tube portion 22.
At this moment, driving gas flow that by high speed, therefore, the pressure of neck 23 reduces because of Bernoulli theorem through the jeting effect of neck 23, become the corresponding negative pressure of pressure (negative pressure) in the sharp thin tube part 21 with neck 23.
So, be connected discharge pipe 6a1 via communication chamber 11 with attaching parts 40 at this point thin tube part 21, therefore, the fluid of discharge pipe 6a side attracted in the communication chamber 11.
As stated; The clearance C L of communication chamber 11 and sharp thin tube part 21 yet brings into play to simulation the effect as neck; Therefore, when attracteding to fluids in the communication chamber 11 and to sharp thin tube part 21 in, moving, utilize the jeting effect of the fluid that passes through clearance C L through clearance C L; Negative pressure in the communication chamber 11 becomes higher, and the attraction that fluid is attracted in the communication chamber 11 becomes higher.
At this; Discharge pipe 6a1 is connected with mould 2 interior cooling road 2a; Therefore, the cooling medium of cooling in the 2a of road (cooling water in the cooling road 2a, in cooling road 2a by the heat of mould the vapour of vaporized) attracted to downstream (cooling water suction device 9) side.
Therefore, can prevent suitably that cooling water and the vapour thereof in cooling road 2a, supplied with are detained in cooling road 2a, the cooling-water flow stabilisation can suitably be carried out the cooling of mould 2.
In addition, as shown in Figure 1, other the supply pipe 4b～4e of pressure ratio of supply pipe 4a that is provided with cooling water suction device 9 in the downstream is low.Therefore, the cooling water that is distributed by branch manifold 3 flows to the low supply pipe 4a side of pressure more.
Therefore; Under the situation of the cooling road that especially needs cooled zones,, the amount of the cooling water that in cooling road 2a, circulates is increased through cooling water suction device 9 is installed on the discharge pipe 6a in the downstream that is positioned at this cooling road 2a for cooling road 2a through mould 2; And; Make it to circulate reliably, therefore, can carry out the suitable cooling of mould 2.
Under the situation of the existing cooling device that does not possess cooling water suction device 9, make cooling water on specific cooling road (for example cooling off road 2a) when circulation, need be at the last valve that is provided with of supply pipe 4b～4e that is connected with other cooling road 2b～2e.This is because through valve the cooling water of the cooling road 2b～2e that flows through other is reduced, and cooling water is flowed in cooling road 2a.
Therefore, under the situation of existing cooling device, on each supply pipe, valve is set, therefore, the cost of cooling device rises, and is difficult to be used to regulate the adjusting of each valve of cooling water.
Under the situation of utilizing cooling water suction device 9,, can reduce the cost of cooling device as long as, therefore, compare with the situation of valve only guaranteeing installation cooling water suction device 9 on the discharge pipe that the cooling road of the amount of cooling water is connected with needs.In addition, therefore the adjusting of the amount of cooling water, is compared with the situation of valve as long as regulate the amount to the driving gas of cooling water suction device 9 supplies by adjuster R, carries out the adjusting of cooling water easily.
As stated; In this embodiment; The cooling water (fluid) that 1 pair of mold cools down of cooling device is used distributes and it is supplied with respectively to being formed at mould 2 inner a plurality of coolings road 2a～2e; The cooling water that in each cooling road 2a～2e, circulates is discharged to the outside of mould 2 via the discharge pipe 6a～6e that is connected with each cooling road 2a～2e; Wherein, be provided with the negative pressure that utilization produces by the injection of driving gas (drive fluid) among the discharge pipe 6a in discharge pipe 6a～6e and attract cooling water suction device 9 at the fluid (cooling water and vapour thereof) of cooling road 2a circulation.
When constituting like this, in the cooling road 2a that the discharge pipe 6a that is provided with cooling water suction device 9 connects, be utilized in the fluid that the negative pressure that produces in the cooling water suction device 9 will circulate and be attracted to discharge pipe 6a (cooling water suction device 9) side in this cools off road 2a.Therefore, can prevent that cooling water and vapour thereof are stranded in the cooling road 2a, can make the cooling-water flow stabilisation.
In addition, other the cooling road of pressure ratio on cooling road that is connected with the discharge pipe that is provided with cooling water suction device 9 is low, and therefore, the cooling water that is assigned with circulates more.Therefore and since with the discharge pipe that is connected through the cooling road that will carry out the zone of mold cools down reliably on cooling water suction device 9 is set, can make the privileged site steady flow of cooling water at mould 2.
In addition, owing to form the cooling water suction device 9 of utilization by the negative pressure of the injection generation of driving gas, so cooling water can directly be attracted to pump P side.Directly be attracted at cooling water under the situation of pump P side, device that the cooling water that attracts is separated etc. need be set in addition, therefore, it is complicated that device becomes, and still under the situation of the cooling water suction device 9 that utilizes negative pressure, this device need be set.In addition, cooling water can directly be attracted to pump P side, so the life-span reduction of pump P, the miscellaneous problem of maintenance of pump P can not occur.
Constituting of cooling water suction device 9 possesses: the diffusion part 20 of the linearity stream of neck 23 between sharp thin tube part 21 and sector tube portion 22; On the extended line of the stream of diffusion part 20 with sharp thin tube part 21 in abutting connection with the communication chamber 11 that is provided with and is communicated with sharp thin tube part 21; Insert communication chamber 11 and towards the spray nozzle part 30 of neck 23 jet drive gases; From the orthogonal direction of stream to communication chamber 11 openings and connect the connector 12 of discharge pipe 6a1; The front end 32a of spray nozzle part 30 is positioned at than connector 12 more near neck 23 sides, and the external diameter of axial region 32 that makes spray nozzle part 30 is along with undergauge towards front end 32a side and gradually.
When constituting like this, the jeting effect when utilizing driving gas to pass through neck 23 and sharp thin tube part 21 in the generation negative pressure, be attracted in the communication chamber 11 through the fluid of this negative pressure discharge pipe 6a1 side.And the fluid that attracted in the space S in the communication chamber 11 attracted to sharp thin tube part 21 sides, finally discharges from diffusion part 20.
The front end 32a of spray nozzle part 30 is positioned at than connector 12 more near neck 23 sides, therefore, attracted to fluids in the communication chamber 11 and does not directly hinder flowing of the driving gas that sprays from spray nozzle part 30.Thus, can not hinder the generation of negative pressure, can carry out attraction reliably from the fluid of discharge pipe 6a1 side.
In addition; The external diameter of the axial region 32 of spray nozzle part 30 is along with towards front end 32a side and undergauge; The inclined plane 32b of the axial region 32 of spray nozzle part 30 tilts with respect to the direction (axis Y) of connector 12; Therefore, even be attracted to the inclined plane 32b that communication chamber 11 interior fluids are blown the axial region 32 that is attached to spray nozzle part 30 from connector 12, flowing of the fluid that is attracted can not be tilted the bigger obstruction of face 32b yet.Therefore, the fluid that is attracted can move to diffusion part 20 sides swimmingly.
The front end 32a of spray nozzle part 30 constitutes, and is positioned at sharp thin tube part 21, between the inner peripheral surface 21b of sharp thin tube part 21 and the inclined plane 32b of spray nozzle part 30 along with towards the front end 32a side of spray nozzle part 30 and narrow down.
When constituting like this; Clearance C L simulation ground performance between the front end 32a of spray nozzle part 30 and the inner peripheral surface 21b of sharp thin tube part 21 is as the effect of neck; Therefore, through in communication chamber 11 towards the flowing of the fluid of sharp thin tube part 21, communication chamber 11 sides are compared with sharp thin tube part 21 sides becomes negative pressure state.Therefore, attracted to more reliably in the communication chamber 11 at the logical fluid of discharge pipe 6a1 effluent.
Spray nozzle part 30 constitutes, and possesses the injection road of the linearity of neck 37 between taper spray nozzle part 35 and fan nozzle portion 36, and the stream of this injection road and above-mentioned diffusion part 20 is configured to linearity in main part 10.
When constituting like this, the neck of performance jeting effect in series is provided with two sections.When spray nozzle part 30 is provided with neck 37, can improve the speed towards the driving gas of neck 23 injections of diffusion part 20 from fan nozzle portion 36.Therefore, utilize the driving gas of the neck 23 that has passed through diffusion part 20, can produce negative pressure more reliably in sharp thin tube part 21 sides, can be more reliably from discharge pipe 6a1 side draught drainage body.
When constituting like this, when main part 10 is pulled down spray nozzle part 30, can be from neck 23 (diffusion part 20) access in the communication chamber 11 side direction main parts 10.
Therefore,, can take out foreign matter apace, recover the function of diffusion part 20 because of foreign matter makes under the situation that the function of diffusion part 20 reduces to the obstruction of neck 23 etc.That is, can form the excellent cooling device 1 of maintainability.
Second embodiment of cooling water suction device is described.
Fig. 5 is the figure of formation of the cooling water suction device 9A of explanation second embodiment, (a) is profile, (b) is the enlarged drawing of the regional A of (a).
In the cooling water suction device 9A of second embodiment, the shape of the front of the axial region 32A of spray nozzle part 30 is different with the shape of the axial region 32 of the cooling water suction device 9A of above-mentioned first embodiment.Therefore, below to describing with cooling water suction device 9 different portions, omit the explanation of common ground.
The front end 32a of axial region 32A is positioned at sharp thin tube part 21, axial region 32A than stage portion 32c more front end 32a side at its ground undergauge in two stages of length direction.
Outer peripheral face (inclined plane) 322a of the reducing diameter part 322 of front end 32a side and the angle of the crossing Xa of central shaft X are bigger than the angle of the crossing Xb of outer peripheral face (inclined plane) 321a of the reducing diameter part 321 of stage portion 32c side (base end side) and central shaft X, and reducing diameter part 322 is compared significantly undergauge with reducing diameter part 321.
At spray nozzle part 30, be positioned at the length L 6 of more setting the axial reducing diameter part 322 of central shaft X than the bottom 11b of communication chamber 11 near the mode of neck 23 sides (inboard of sharp thin tube part 21) with the border 323 of reducing diameter part 321 and reducing diameter part 322.
In cooling water suction device 9A, the cardinal extremity of reducing diameter part 322 is that border 323 is positioned at the position near the inner peripheral surface 21b of sharp thin tube part 21, between border 323 and inner peripheral surface 21b, forms minim gap CL, plays a role as neck to this clearance C L simulation.
In addition; For the jeting effect of the neck that produces this simulation more reliably, set angle of the crossing Xa, Xb than outer peripheral face 322a with the angle of the crossing θ 1 big mode of inner peripheral surface 21b with respect to the central shaft of outer peripheral face 322a, 321a with the angle of the crossing θ 2 of outer peripheral face 321a and inner peripheral surface 21b.
Therefore; Gap between the inner peripheral surface 21b of the outer peripheral face of axial region 32A and sharp thin tube part 21 is being upstream side C1 more leaning on stage portion 32c side than border 323; Along with towards the border 323 and stenosis is narrow, be downstream C2 than border 323 more forward end 32a sides, along with becoming big towards front end 32a.
In the cooling water suction device 9A of second embodiment; Owing to spray and the gas that passed through neck 23 makes in the sharp thin tube part 21 and becomes negative pressure from the fan nozzle portion of ejection section 34 36; Through this negative pressure; Attracted to the clearance C L of fluid through axial region 32A and inner peripheral surface 21b in the communication chamber 11 and attracted to sharp thin tube part 21 when interior; Utilize the jeting effect of this moment through the fluid of clearance C L, the negative pressure state in the communication chamber 11 further improves, and the 11 interior attractions of fluid that attract further increase from discharge pipe 6a1 lateral communication chamber.
At this; During the front end 32a side two stages undergauge of axial region 32A; Than the clearance C L of border 323 and inner peripheral surface 21b downstream C2 more; The mode that broadens gradually with the gap between the inner peripheral surface 21b of the outer peripheral face 322a of axial region 32A (reducing diameter part 322) and sharp thin tube part 21 forms the stream of fluid; Therefore, the flow rate of fluid that attracted in the sharp thin tube part 21 is risen, the fluid that attracted in the sharp thin tube part 21 can have directive property with the mode that moves along the gas flow direction of spraying from fan nozzle portion 36.
Under the situation of the spray nozzle part 30 of above-mentioned embodiment; Shown in Fig. 2 (c); The front of axial region 32 is two stages ground undergauge not; Therefore, be not formed with in the downstream of spray nozzle part 30 and the clearance C L of inner peripheral surface 21b to make and attracted to the stream that the fluid of sharp thin tube part 21 sides has directive property from the space S of communication chamber 11 sides.Therefore, the fluid that draws from communication chamber 11 side draughts passes through in communication chamber 11, to spread behind the clearance C L in a large number.
Situation like second embodiment; Make the fluid that attracted in the sharp thin tube part 21 via clearance C L have directive property; When moving along the gas flow of spraying towards neck 23 from fan nozzle portion 36; Therefore the gas flow of can bigger obstruction not spraying from fan nozzle portion 36, can bring into play the jeting effect through the gas of neck 23 to greatest extent.
As stated; In second embodiment; The reducing diameter part 322 of the front end 32a side of the axial region 32A of spray nozzle part 30 constitutes; Its external diameter is than the reducing diameter part 321 of the base end side (stage portion 32c side) of axial region 32A undergauge significantly, and the cardinal extremity of reducing diameter part 322 promptly is positioned at sharp thin tube part 21 with the border 323 of reducing diameter part 321, between the outer peripheral face 321a of the inner peripheral surface 21b of sharp thin tube part 21 and the reducing diameter part of axial region 32A 321,322, the 322a along with towards the border 323 and narrow down; Afterwards, along with from the border 323 towards the front end 32a of spray nozzle part 30 and broaden.
When constituting like this; The fluid that attracted in the communication chamber 11 attracted in the sharp thin tube part 21 through clearance C L; At this moment; Utilize the jeting effect through the fluid of clearance C L, the negative pressure state in the communication chamber 11 further improves, and the 11 interior attractions of fluid that attract further improve from discharge pipe 6a1 lateral communication chamber.Therefore, attracted to more reliably in the communication chamber 11 at the logical fluid of discharge pipe 6a1 effluent.
In addition, owing to can make the fluid that attracted in the sharp thin tube part 21 through clearance C L have directive property, therefore, can prevent significantly to be hindered from the gas flow that fan nozzle portion 36 sprays through this fluid that is attracted.Therefore, can bring into play jeting effect to greatest extent through the gas of neck 23.
In the above-described embodiment, represented with discharge pipe 6a～6e that mould 2 is connected in a discharge pipe 6a in be provided with the situation of cooling water suction device 9, but also cooling water suction device 9 can be installed on a plurality of discharge pipes.
Claims (5)
1. equipment for cooling die; Its fluid that mold cools down is used distributes and supplies with to a plurality of coolings road that is formed at mould inside respectively; Make at the fluid of each said cooling road circulation and discharge to the outside of said mould, it is characterized in that via the discharge pipe that is connected with each cooling road
In at least one of said discharge pipe, be provided with the suction device that negative pressure that the injection of utilization through drive fluid produce attracts said fluid.
2. equipment for cooling die as claimed in claim 1 is characterized in that, said suction device possesses:
Diffusion part, it possesses the stream of the linearity of neck between sharp thin tube part and sector tube portion;
Communication chamber, itself and said sharp thin tube part are communicated with said sharp thin tube part in abutting connection with setting;
Nozzle, it inserts said communication chamber, towards the said drive fluid of said neck jet;
Connector, it to the communication chamber opening, and is connected with said discharge pipe from the orthogonal direction of said stream,
The front end of said nozzle is positioned at than said connector more near the position of said neck side, and the external diameter that makes said nozzle is along with undergauge towards front and gradually.
3. equipment for cooling die as claimed in claim 2 is characterized in that,
The front end of said nozzle is positioned at said sharp thin tube part, between the inner peripheral surface of said sharp thin tube part and the outer peripheral face of said nozzle along with towards the front of said nozzle and narrow down gradually.
4. equipment for cooling die as claimed in claim 2 is characterized in that,
The external diameter of the front of said nozzle is than the base end side of said nozzle undergauge significantly,
This significantly the cardinal extremity of the part of undergauge be positioned at said sharp thin tube part, between the inner peripheral surface of said sharp thin tube part and the outer peripheral face of said nozzle along with narrowing down gradually towards said cardinal extremity, then, along with from said cardinal extremity towards the front end of said nozzle and broaden gradually.
5. like each described equipment for cooling die in the claim 2～4, it is characterized in that,
Said nozzle possesses the injection road of the linearity of neck between taper spray nozzle part and fan nozzle portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-128697 | 2011-06-08 | ||
| JP2011128697A JP5367018B2 (en) | 2011-06-08 | 2011-06-08 | Mold cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102814484A true CN102814484A (en) | 2012-12-12 |
| CN102814484B CN102814484B (en) | 2015-04-22 |
Family
ID=47299130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210182176.4A Expired - Fee Related CN102814484B (en) | 2011-06-08 | 2012-06-05 | Mold cooling device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5367018B2 (en) |
| CN (1) | CN102814484B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000263187A (en) * | 1999-03-16 | 2000-09-26 | Akuto Corporation:Kk | Device for cooling metallic mold |
| CN1544236A (en) * | 2003-11-27 | 2004-11-10 | 甘国工 | Intensifying and cooling method and device for plastic double-wall corrugated pipe forming module |
| CN1578708A (en) * | 2001-10-31 | 2005-02-09 | 株式会社亚铝质提 | Cooling device for casting molds |
| US20090084931A1 (en) * | 2007-09-27 | 2009-04-02 | Intel Corporation | Enabling bare die liquid cooling for the bare die and hot spots |
| CN101489750A (en) * | 2006-07-26 | 2009-07-22 | 丰田自动车株式会社 | Cooling system for forming mold and method of cooling forming mold |
| WO2010044882A1 (en) * | 2008-10-16 | 2010-04-22 | Flextronics Ap Llc | System and method for rapidly heating and cooling a mold |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2717685C3 (en) * | 1977-04-21 | 1981-04-02 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Internal combustion engine for motor vehicles |
| JP2784087B2 (en) * | 1990-10-22 | 1998-08-06 | 本田技研工業株式会社 | Casting equipment for fiber reinforced metal cylinder blocks |
| JPH1058452A (en) * | 1996-08-23 | 1998-03-03 | Sakai Seiki Kk | Cooling-water supplying manifold for metal mold and cooling-water recovering manifold for metal mold |
-
2011
- 2011-06-08 JP JP2011128697A patent/JP5367018B2/en not_active Expired - Fee Related
-
2012
- 2012-06-05 CN CN201210182176.4A patent/CN102814484B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000263187A (en) * | 1999-03-16 | 2000-09-26 | Akuto Corporation:Kk | Device for cooling metallic mold |
| CN1578708A (en) * | 2001-10-31 | 2005-02-09 | 株式会社亚铝质提 | Cooling device for casting molds |
| CN1544236A (en) * | 2003-11-27 | 2004-11-10 | 甘国工 | Intensifying and cooling method and device for plastic double-wall corrugated pipe forming module |
| CN101489750A (en) * | 2006-07-26 | 2009-07-22 | 丰田自动车株式会社 | Cooling system for forming mold and method of cooling forming mold |
| US20090084931A1 (en) * | 2007-09-27 | 2009-04-02 | Intel Corporation | Enabling bare die liquid cooling for the bare die and hot spots |
| WO2010044882A1 (en) * | 2008-10-16 | 2010-04-22 | Flextronics Ap Llc | System and method for rapidly heating and cooling a mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102814484B (en) | 2015-04-22 |
| JP5367018B2 (en) | 2013-12-11 |
| JP2012254467A (en) | 2012-12-27 |
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| ASS | Succession or assignment of patent right |
Owner name: NISSAN MOTOR CO., LTD. Effective date: 20140113 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140113 Address after: Shizuoka Applicant after: JATCO Ltd. Applicant after: NISSAN MOTOR Co.,Ltd. Address before: Shizuoka Applicant before: JATCO Ltd. |
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