CN111702148A - Annular point cooling mechanism and die-casting die applied by same - Google Patents
Annular point cooling mechanism and die-casting die applied by same Download PDFInfo
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- CN111702148A CN111702148A CN202010840936.0A CN202010840936A CN111702148A CN 111702148 A CN111702148 A CN 111702148A CN 202010840936 A CN202010840936 A CN 202010840936A CN 111702148 A CN111702148 A CN 111702148A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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Abstract
The annular point cooling mechanism comprises a sealing plate and a refrigerant conveying assembly, wherein the sealing plate is annular and is provided with a central hole; the device is characterized in that the refrigerant conveying assembly comprises a distribution pipe for distributing the refrigerant, a feeding pipe and a spot cooling branch pipe, wherein the feeding pipe is communicated with the distribution pipe, the feeding pipe is used for inputting the refrigerant to the distribution pipe, and the spot cooling branch pipe is used for outputting the refrigerant in the distribution pipe to one side space of the sealing plate; the sealing plate and the distribution pipe are arranged up and down, the distribution pipe is arranged at the periphery of the central hole, and the distribution pipe is exposed in the space at the side edge of the sealing plate; the invention has the beneficial technical effects that: annular point cooling body has dual cooling effect, and the refrigerant of following some cold branch pipe output can cool off the inside for example hot node position of mould earlier, then flows at a side space of closing plate along the closing plate and at last discharges away from the discharging pipe, can cool off inside the mould when the refrigerant flows, and this greatly increased annular point cooling body's heat exchange area improves cooling efficiency.
Description
Technical Field
The invention relates to a cooling device applied to a mold, which cools the mold by using a spot spraying and annular surface cooling mode; the invention also relates to a die-casting die applying the annular point cooling mechanism.
Background
In the field of pressure casting, in order to accelerate heat dissipation of a mold, a cooling device is generally used to cool the mold to accelerate cooling solidification of a casting, thereby improving production efficiency. And aiming at the problems that the temperature of the hot node of the mold is high and the local solidification of the part is slow, a special point cooling device is used on the mold to cool the hot node of the mold. As shown in fig. 7, the point spraying type cooling ring includes an outer shell in a closed ring shape, and the outer shell has an upper shell and a lower shell which are separately arranged and are folded up and down to form an annular inner cavity; a refrigerant conveying inner pipe arranged around the central ring center of the outer shell is arranged in the annular inner cavity, and a feed inlet for communicating an external refrigerant source is formed in the refrigerant conveying inner pipe; a refrigerant passageway is formed between the shell wall of the outer shell and the outer tube wall of the refrigerant conveying inner tube, a discharge port and a transition through hole which are arranged on different shell wall areas are arranged on the outer shell, and the discharge port is communicated with the refrigerant passageway; the transition device is characterized by further comprising a refrigerant spray pipe penetrating and sleeved in the transition through hole, an inner end pipe orifice of the refrigerant spray pipe is communicated with the refrigerant conveying inner pipe, an outer end pipe orifice is arranged outside the outer shell, and a backflow gap communicated with a refrigerant passageway is formed between the inner wall of the transition through hole and the outer wall of the refrigerant spray pipe. The cooling medium spraying pipes are arranged, so that the cooling medium with basically consistent output can be simultaneously output to a plurality of positions, and the cooling treatment with the same strength can be well carried out on a plurality of heat nodes of the die. Furthermore, in order to reduce the influence of the external environment on the low-temperature refrigerant flowing in the refrigerant conveying inner pipe, the upper shell is a heat insulation shell.
Disclosure of Invention
The invention is obtained by improvement on the basis of the prior technical scheme, in the practical use, the applicant cancels the upper shell in the patent, and trial-manufacture tests show that the cooling device after the upper shell is cancelled not only has the effect of cooling the hot node, but also improves the cooling effect of the die because the upper shell is not blocked, and further improves the production efficiency.
Therefore, the invention provides an annular point cooling mechanism which comprises a sealing plate and a refrigerant conveying assembly, wherein the sealing plate is annular and is provided with a central hole; the refrigerant conveying assembly comprises a distribution pipe for distributing refrigerants, a feeding pipe and a spot cooling branch pipe, wherein the feeding pipe is communicated with the distribution pipe, the feeding pipe is used for inputting the refrigerants to the distribution pipe, and the spot cooling branch pipe is used for outputting the refrigerants in the distribution pipe to one side space of the sealing plate; the sealing plate and the distribution pipe are arranged up and down, the distribution pipe is arranged on the periphery of the central hole, and the distribution pipe is exposed in the space on the side edge of the sealing plate; the point cooling branch pipe is characterized by further comprising a discharge pipe, the discharge pipe is connected to the sealing plate, an inlet of the discharge pipe is communicated to a side space of the sealing plate, and the side space of the sealing plate is a space on one side where the outlet of the point cooling branch pipe is located.
The distribution pipe is a member of the refrigerant conveying assembly with the functions of intermediate connection, conveying and distribution, and on one hand, the distribution pipe can receive the refrigerant from the feeding pipe and on the other hand can convey and distribute the refrigerant to the point cooling branch pipes.
Wherein, a side space of the sealing plate is one of two side spaces divided by taking the sealing plate as a reference plane; in the present invention, the one side space of the sealing plate is a side space where the outlet of the spot cooling branch pipe is located, and is also a side space where the refrigerant is output.
The sealing plate and the distribution pipe are arranged up and down, the distribution pipe is arranged on the periphery of the central hole, firstly, the arrangement mode of the sealing plate and the distribution pipe is defined, and the sealing plate can be arranged above the distribution pipe or below the distribution pipe; the different arrangement modes of the sealing plate and the distribution pipe influence the connection mode of the sealing plate and the refrigerant conveying assembly and the cooling effect of the annular point cooling mechanism; and secondly defines that the distribution tube is located at the periphery of the projected area of the central hole when seen from the top view, and the distribution tube does not extend out of the area of the sealing plate body.
Wherein the distribution pipe is exposed to the side space of the sealing plate, that is, the distribution pipe is disposed in one side space of the sealing plate, and the outer space of the distribution pipe is not provided with other blocking members such as the upper case of the prior art CN 208261798U.
According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: on the first hand, the annular point cooling mechanism has double cooling effects, a refrigerant output from the point cooling branch pipe can firstly cool the interior of a mold, such as a hot node part, then flows in a side space of the sealing plate along the sealing plate, and is finally discharged from the discharge pipe, and the interior of the mold can be cooled when the refrigerant flows, so that the heat exchange area of the annular point cooling mechanism is greatly increased, and the cooling efficiency is improved; in a second aspect, when the distribution pipe is exposed to a side space of the sealing plate, the distribution pipe exchanges heat with a refrigerant with a higher temperature outside the distribution pipe, so as to reduce the temperature of the refrigerant outside the distribution pipe, which is beneficial to improving the cooling effect of the annular point cooling mechanism on a wall body at a heat exchange position inside the mold, such as a peripheral wall body of a heat node; in a third aspect, the annular point cooling mechanism of the present invention has a simpler structure, lower manufacturing cost and better cooling effect.
The distribution pipe and the sealing plate are arranged in the following two ways:
in a first arrangement, the distribution pipe is located in the other side space of the sealing plate, and the cold branch pipe passes through the sealing plate and extends into the one side space of the sealing plate. Wherein the other side space is the other one of the two side spaces divided by the sealing plate as a reference plane, and corresponds to the one side space; the point cooling branch pipes in the arrangement mode need to penetrate through the sealing plates and be connected with the sealing plates in a sealing mode, and the refrigerant output by the distribution pipes and the point cooling branch pipes is separated by the sealing plates; the heat exchanger has the advantages that the distribution pipe is only used for distributing the refrigerant to the point cooling branch pipes, and does not exchange heat with the refrigerant output by the point cooling branch pipes, so that the point cooling branch pipes can be better ensured to output the refrigerant with stable temperature; the refrigerant after cooling the mold thermal node can cool the peripheral wall body of the mold thermal node; therefore, the annular point cooling mechanism ensures a foundation with a better point cooling effect and has certain cooling capacity on the peripheral wall body of the thermal node of the die.
In a second arrangement, the distribution pipe is located in one side space of the sealing plate, and the feed pipe passes through the sealing plate from the other side space of the sealing plate to communicate with the distribution pipe. The arrangement mode enables the distribution pipe and the point cooling branch pipe to be arranged in a side space of the sealing plate, and the feeding pipe penetrates through the sealing plate and is connected with the sealing plate in a sealing mode so as to enable the sealing plate to be connected with the refrigerant conveying assembly; the refrigerant is output from the point cooling branch pipe, cools a hot joint of the mold, flows through the surface of the distribution pipe and exchanges heat with the distribution pipe, and the refrigerant with reduced temperature has better cooling capacity. This has the advantage that the annular spot cooling mechanism has a good basis for spot cooling and also has good cooling capability for the peripheral walls of the mold thermal node.
In order to facilitate the arrangement of the distribution pipe, the wall surface of the sealing plate facing the distribution pipe is groove-shaped and is provided with a wall surface groove, and the distribution pipe is arranged in the wall surface groove. Since the arrangement of the distribution pipe and the sealing plate is various, when the distribution pipe is arranged above the sealing plate, the wall surface groove is arranged on the upper wall surface of the sealing plate; and when the distribution pipe is disposed below the sealing plate, the wall surface groove is provided on a lower wall surface of the sealing plate; when the distribution pipe is arranged in the wall surface groove, the radial positioning is well provided for the distribution pipe through the groove wall body, and meanwhile, the groove wall body can also be used as a mounting and positioning structure of the sealing plate.
In addition, the invention also provides a die-casting die applying the annular point cooling mechanism, the die-casting die comprises a die and the annular point cooling mechanism, an annular groove and a hole which is communicated with the annular groove and extends towards the interior of the die are arranged on the die, the sealing plate is sealed and connected with the notch of the annular groove in a welding manner, the sealing plate and the annular groove are combined into a closed tunnel, the point cooling branch pipe extends towards the hole, a gap is formed between the point cooling branch pipe and the wall of the hole, and the inlet of the discharge pipe is communicated with the tunnel. The annular groove is an annular groove-shaped space arranged on a mold wall body, the annular groove is formed by a groove side wall and a groove bottom wall together, the groove side wall also forms a notch of the annular groove, and the sealing plate can be covered on the notch, is connected with the groove side wall and is connected with the annular groove in a sealing mode; the tunnel is a channel space formed by the sealing plate and the annular groove and used for allowing a refrigerant to flow through and placing the distribution pipe; the hole extending in the direction of the hot node of the mold is communicated with the tunnel, so that the gap between the cold point branch pipe and the hole wall is also communicated with the tunnel, when a refrigerant is output from the cold point branch pipe, the refrigerant exchanges heat with heat inside the mold, such as heat at the hot node, so as to complete point cooling of the mold, then the refrigerant flows into the tunnel along the gap between the hole wall and the cold point branch pipe, and exchanges heat with the side wall body and the bottom wall of the groove which surround the annular groove, so as to complete cooling of the wall body around the hot node of the mold, and finally the refrigerant is discharged out of the tunnel from the discharge pipe. Therefore, the annular point cooling mechanism is applied to the die-casting die, and has the cooling effect on the interior of the die, such as a hot node, and the annular cooling effect on the wall body around the hot node of the die, so that the cooling efficiency of the die is greatly improved, and the production efficiency is improved.
The annular point cooling mechanism has the characteristics and the advantages, so that the annular point cooling mechanism can be applied to a die-casting die to improve the cooling effect of the die.
Drawings
FIG. 1 is a schematic structural view of a front cross section of a die-casting mold applying the annular point cooling mechanism;
FIG. 2 is a schematic axial view of the annular spot cooling mechanism;
FIG. 3 is a schematic top view of the annular spot cooling mechanism;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3, showing the structure of the feed pipe and the discharge pipe;
FIG. 5 is a schematic sectional view taken along the line B-B in FIG. 3, showing the structure of the spot-cooled branch pipes;
FIG. 6 is a schematic cross-sectional view of the annular spot cooling mechanism applied to a lower mold;
fig. 7 is a schematic cross-sectional view of a point spray cooling ring in CN208261798U in the prior art.
Detailed Description
The structure of the annular spot cooling mechanism 100 and the die casting mold using the same to which the technical solution of the present invention is applied will be further described with reference to the accompanying drawings.
The invention provides a die-casting die, as shown in fig. 1 and 5, the die-casting die comprises an upper die 21 and a lower die 22 which are separately arranged up and down, and a side die 23 arranged between the upper die 21 and the lower die 22, the upper die 21, the lower die 22 and the side die 23 enclose a die-casting cavity 20, a gate 24 for inputting raw material melt is arranged on the lower die 22, the gate 24 is communicated with the die-casting cavity 20, a raised column 211 (also called PCD column) extending towards the die-casting cavity 20 is arranged on the wall body of the upper die 21, the raised columns 211 are arranged around the gate 24, a heat node of the die with a thicker wall thickness is formed at the intersection of the raised column 211 and the wall body of the upper die 21, and the position of the heat node of the die is not beneficial to uniform heat dissipation of a casting. Go up still be provided with on the mould 21 and encircle the annular groove 3 that the hot node of mould was arranged, annular groove 3 includes two recess lateral walls 31 and recess diapire 32 around, recess lateral wall 31 and recess diapire 32 have formed jointly and have been annular towards the mould exterior space annular groove 3, and two around recess lateral wall 31 still forms the notch of annular groove 3. A plurality of holes 4 extending towards the hot node direction of the mold are further formed in the upper mold 21, the holes 4 are cooling cavities close to the hot node of the mold, and the annular groove 3 is communicated with the holes 4, so that the annular groove 3 and the holes 4 form a cavity for placing the annular point cooling mechanism 100, wherein the front and rear groove side walls 31 are wall bodies for connecting with the annular point cooling mechanism 100.
As shown in fig. 1 to 5, the annular spot cooling mechanism 100 includes a sealing plate 7 and a refrigerant conveying assembly 8. The seal plate 7 is annular so as to have a central hole 110, the central hole 110 being well shielded from a central cooling device (not shown) of the upper die 21, thereby facilitating mounting of the annular spot cooling mechanism 100 to the upper die 21; in order to enable the annular spot cooling mechanism 100 to be firmly mounted on the mold, the shape of the annular sealing plate 7 is matched with that of the annular groove 3 arranged on the upper mold 21, and the sealing plate 7 can cover the notch of the annular groove 3 and be connected with the front and rear groove side walls 31 in a sealing manner through welding, so that the sealing plate 7 and the annular groove 3 are combined into a closed tunnel 30.
The refrigerant conveying assembly 8 comprises a distribution pipe 81 for distributing the refrigerant, and a feeding pipe 82 and a cooling branch pipe 5 communicated with the distribution pipe 81, wherein the feeding pipe 82 is used for inputting the refrigerant to the distribution pipe 81, and the cooling branch pipe 5 is used for outputting the refrigerant in the distribution pipe 81 to a side space of the sealing plate 7. In the present invention, a side space of the sealing plate 7 is a side space where the outlet of the point cooling branch pipe is located, and is also a side space where a refrigerant is output; one side space of the sealing plate 7 is opposite to the other side space of the sealing plate 7; as shown in fig. 1, the lower space of the sealing plate 7 is one side space of the sealing plate 7, and the upper space of the sealing plate 7 is the other side space of the sealing plate 7; as shown in fig. 6, the upper space of the sealing plate 7 is one side space of the sealing plate 7, and the lower space of the sealing plate 7 is the other side space of the sealing plate 7. One end of the feed pipe 82 is connected to an external refrigerant source, and the other end of the feed pipe communicating with the distribution pipe 81 supplies a refrigerant to the distribution pipe 81. The distribution pipe 81 is a member of the refrigerant delivery assembly 8 for performing an intermediate connection and distribution function, and the distribution pipe 81 can receive the refrigerant from the feed pipe 82 and deliver the distributed refrigerant to the cold branch pipe 5. In order to achieve a better cooling effect, the number of the point cooling branch pipes 5 is adapted to the number of the holes 4, the point cooling branch pipes 5 extend towards the holes 4 and convey refrigerants into the holes 4, and the refrigerants exchange heat with the wall bodies of the holes 4 to reduce the temperature of the hot nodes of the mold. Meanwhile, the pipe diameter of the point cooling branch pipe 5 is smaller than the hole diameter of the hole 4, a gap is formed between the point cooling branch pipe 5 and the wall body of the hole 4, so that a backflow channel 6 is formed between the outer surface of the point cooling branch pipe 5 and the inner surface of the hole 4, and the refrigerant can flow outwards along the backflow channel 6 after being output from the point cooling branch pipe 5. In addition, the annular groove 3 and the sealing plate 7 are combined to form a tunnel 30, and the annular groove 3 (i.e., the tunnel 30) is communicated with the hole 4, so that the return passage 6 is communicated with the tunnel 30, the refrigerant which has undergone heat exchange with the wall body of the hole 4 can flow from the return passage 6 into the tunnel 30, and the refrigerant flowing into the tunnel 30 is in contact with the groove side wall 31 and the groove bottom wall 32 to perform heat exchange with the mold wall body around the thermal node of the mold.
The refrigerant supply assembly 8 further includes a discharge pipe 84, the discharge pipe 84 is connected to the sealing plate 7, and a discharge pipe inlet 841 is connected to a side space of the sealing plate 7. Wherein, one side space of the sealing plate 7 is a side space where the outlet 51 of the point cooling branch pipe is positioned, and is also a side where the tunnel 30 is positioned; as shown in fig. 1 and 4, when the tapping pipe 84 is disposed above the sealing plate 7, the tunnel 30 is located below the sealing plate 7, the tapping pipe inlet 841 is disposed at the top of the tunnel 30 and is communicated with the tunnel 30, and the refrigerant discharged from the point cooling branch pipe 5 and collected in the tunnel 30 can enter the tapping pipe 84 through the tapping pipe inlet 841 and be discharged through the tapping pipe 84. When the tunnel 30 is located above the sealing plate 7, the discharge pipe 84 is disposed below the sealing plate 7, and the discharge pipe 84 extends into the tunnel 30 and makes the pipe inlet 841 close to the top of the tunnel 30 as much as possible, so that the refrigerant gathered into the tunnel 30 can contact with the mold as much as possible to achieve a better cooling effect.
In order to facilitate the installation of the refrigerant conveying assembly 8, the sealing plate 7 and the distribution pipe 81 are arranged up and down, the distribution pipe 81 surrounds the periphery of the central hole 110, and the distribution pipe 81 is located within the projection range of the sealing plate 7 when viewed from the up and down direction. The projection range of the sealing plate 7 is an area projected by the sealing plate 7 body along the vertical projection direction. This arrangement is to reduce the obstruction of the distribution pipe 81 to the installation of the refrigerant conveying assembly 8, especially when the distribution pipe 81 is located in a side space of the sealing plate 7, if the radial dimension of the distribution pipe 81 exceeds the projection range of the sealing plate 7, the sealing plate 7 and the annular groove 3 are difficult to connect after the distribution pipe 81 is installed in the annular groove 3. When the distribution pipe 81 is located in the other side space of the sealing plate 7, the distribution pipe 81 does not extend beyond the projection range of the sealing plate 7 in the radial direction, so that the welding operation of the sealing plate 7 mounted in the annular groove 3 is facilitated. Although the distribution pipe 81 is located within the projection range of the sealing plate 7, the extension direction of the plurality of the cold spot branch pipes 5 connected to the distribution pipe 81 is flexible, and the cold spot branch pipes 5 are matched according to the shape and position of the holes 4. In the present embodiment, as shown in fig. 2 and 3, the cold-spot branch pipe 5 extends toward the central hole 110 and extends into the hole 4; as shown in fig. 5, a schematic view of the spot-cooled branch pipe 5 extending into the hole 4 is shown, and an upper die 21 is indicated by a dotted line.
In order to achieve better cooling effect of the annular point cooling mechanism 100, the distribution pipe 81 is exposed in the space beside the sealing plate 7, i.e. the upper housing 9 in the prior art CN208261798U is not additionally arranged between the distribution pipe 81 and the mold wall body; the distribution pipes 81 are arranged in two specific embodiments, which are described below, so that the refrigerant conveying assembly 8 can achieve different cooling effects according to the specific arrangement of the distribution pipes 81.
In the first embodiment, the distribution pipe 81 is located in the other side space (not shown) of the sealing plate 7, and the cold branch pipe 5 passes through the sealing plate 7 and extends into one side space of the sealing plate 7. The point-cooling branch pipe 5 of this arrangement passes through the sealing plate 7 and is connected with the sealing plate 7 in a sealing manner, and the outer surface of the distribution pipe 81 and the refrigerant output from the point-cooling branch pipe 5 are separated by the sealing plate 7. This configuration has the advantage that the distribution pipe 81 stably distributes the refrigerant of the same strength and a lower temperature to the spot cooling branch pipes 5, so that the annular spot cooling mechanism 100 has a better spot cooling effect. Although the temperature of the refrigerant after heat exchange with the mold hot node is increased, the refrigerant has a certain cooling capacity for the wall around the mold hot node when flowing through the tunnel 30. The annular point cooling mechanism 100 thus arranged has a good point cooling effect on the mold thermal node and a general cooling effect on the peripheral wall of the mold thermal node.
In a second embodiment, as shown in fig. 2 to 4, the distribution pipe 81 is located in one side space of the sealing plate 7, and the feeding pipe 82 passes through the sealing plate 7 from the other side space of the sealing plate 7 to communicate with the distribution pipe 81. The arrangement is such that the distribution pipe 81 and the cold branch pipe 5 are disposed in a side space of the sealing plate 7, and the feeding pipe 82 passes through the sealing plate 7 to supply the refrigerant to the distribution pipe 81 and connect the sealing plate 7 and the refrigerant delivery assembly 8. The distribution pipe 81 is arranged in the tunnel 30, a gap is reserved between the outer surface of the distribution pipe 81 and a wall body which surrounds the tunnel 30, when the refrigerant flowing to the tunnel 30 from the return channel 6 flows through the outer surface of the distribution pipe 81, the refrigerant can exchange heat with the wall body of the distribution pipe 81, so that the temperature is reduced, and the refrigerant with the reduced temperature can further well cool the mold wall body. This arrangement provides the annular spot cooling mechanism 100 with good spot cooling effect on the mold hot spot and good cooling effect on the peripheral walls of the mold hot spot.
Furthermore, in order to better position the distribution pipe 81 and the sealing plate 7 when they are mounted, the wall surface of the sealing plate 7 facing the distribution pipe 81 is groove-shaped and has a wall surface groove 71, and the distribution pipe 81 is disposed in the wall surface groove 71. As shown in fig. 6, this is a specific embodiment when the ring spot cooling mechanism 100 is applied to the lower die 22 of the die casting mold. The lower die 22 is provided at the bottom thereof with an annular groove 222, the annular groove 222 is arranged around the gate 24, and the annular spot cooling mechanism 100 is provided on the annular groove 222. The wall surface of the sealing plate 7 facing the distribution pipe 81 is groove-shaped and is provided with a wall surface groove 71, the distribution pipe 81 is arranged in the wall surface groove 71, and the distribution pipe 81 is well limited in the projection range of the sealing plate 7 through the groove side wall body 72 of the wall surface groove 71; the seal plate 7 is well retained in the annular groove 222 of the lower die 22 by the groove sidewall 72 of the wall groove 71.
Compared with the prior art, the annular point cooling mechanism 100 of the invention has better cooling effect and larger cooling range, and when the annular point cooling mechanism 100 is applied to a die-casting die, the annular point cooling mechanism 100 can be flexibly arranged according to the needs of the die, and is generally arranged on the upper die 21 or the lower die 22 around the sprue 24. In order to ensure that the metal at the gate 24 can be synchronously cooled during die casting without affecting the feeding effect on other parts of the casting, the annular point cooling mechanism 100 is set to be started after the feeding of the casting is completed, and the relative positions of the distribution pipe 81 and the sealing plate 7 are set according to the thickness of the casting and the size of the convex column 211 on the die, so that the cooling effect of the annular point cooling mechanism 100 is adjusted, the metal around the gate 24 can be synchronously cooled and solidified, and the cooling efficiency and the quality of the casting are improved.
Claims (5)
1. The annular point cooling mechanism comprises a sealing plate and a refrigerant conveying assembly, wherein the sealing plate is annular and is provided with a central hole; the refrigerant conveying assembly is characterized by comprising a distribution pipe for distributing refrigerants, a feeding pipe and a point cooling branch pipe, wherein the feeding pipe is communicated with the distribution pipe and used for inputting the refrigerants to the distribution pipe, and the point cooling branch pipe is used for outputting the refrigerants in the distribution pipe to one side space of the sealing plate; the sealing plate and the distribution pipe are arranged up and down, the distribution pipe is arranged on the periphery of the central hole, and the distribution pipe is exposed in the space on the side edge of the sealing plate; the point cooling branch pipe is characterized by further comprising a discharge pipe, the discharge pipe is connected to the sealing plate, an inlet of the discharge pipe is communicated to a side space of the sealing plate, and the side space of the sealing plate is a space on one side where the outlet of the point cooling branch pipe is located.
2. The annular spot cooling mechanism according to claim 1, wherein the distribution pipe is located in the other side space of the sealing plate, and the spot cooling branch pipe passes through the sealing plate and extends into the one side space of the sealing plate.
3. The annular spot cooling mechanism according to claim 1, wherein the distribution pipe is located in one side space of the sealing plate, and the feed pipe communicates with the distribution pipe through the sealing plate from the other side space of the sealing plate.
4. An annular spot cooling mechanism according to claim 1, 2 or 3, wherein the wall surface of the sealing plate facing the distribution pipe is groove-shaped with a wall surface groove in which the distribution pipe is arranged.
5. A die-casting die is characterized by comprising a die and an annular point cooling mechanism as claimed in any one of claims 1 to 4, wherein an annular groove and a hole which is communicated with the annular groove and extends towards the inner direction of the die are formed in the die, a sealing plate covers a notch of the annular groove and is connected with the notch in a welding mode, the sealing plate and the annular groove are combined to form a closed tunnel, a point cooling branch pipe extends towards the hole, a gap is formed between the point cooling branch pipe and the wall of the hole, and an inlet of a discharge pipe is communicated with the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840936.0A CN111702148A (en) | 2020-08-20 | 2020-08-20 | Annular point cooling mechanism and die-casting die applied by same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840936.0A CN111702148A (en) | 2020-08-20 | 2020-08-20 | Annular point cooling mechanism and die-casting die applied by same |
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| CN111702148A true CN111702148A (en) | 2020-09-25 |
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| CN202010840936.0A Pending CN111702148A (en) | 2020-08-20 | 2020-08-20 | Annular point cooling mechanism and die-casting die applied by same |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202155476U (en) * | 2011-06-20 | 2012-03-07 | 刘尚湘 | Multipoint combined cooling device |
| CN102672186A (en) * | 2012-06-07 | 2012-09-19 | 太仓市锦立得粉末冶金有限公司 | Manufacturing process for gear ring in powder metallurgy |
| CN103769559A (en) * | 2014-02-19 | 2014-05-07 | 重庆擎一模具制造有限公司 | Low pressure casting die for multi-point isolated heat spot type large gearbox casing |
| CN103978189A (en) * | 2014-05-29 | 2014-08-13 | 中信戴卡股份有限公司 | Improved die cooling device |
| JP2016132232A (en) * | 2015-01-22 | 2016-07-25 | エスバンス 株式会社 | Metal mold cooling structure |
| CN107252877A (en) * | 2017-08-09 | 2017-10-17 | 佛山市南海奔达模具有限公司 | Mould multiple spot cooling body and its hub mold of application |
| CN206747574U (en) * | 2017-05-04 | 2017-12-15 | 佛山市南海奔达模具有限公司 | Cooling body on casting mould |
| CN206869088U (en) * | 2017-05-03 | 2018-01-12 | 佛山市南海奔达模具有限公司 | Cooling water ring and its casting mould of application |
| CN207127221U (en) * | 2017-08-09 | 2018-03-23 | 佛山市南海奔达模具有限公司 | Mould multiple spot cooling body and its hub mold of application |
| CN108339946A (en) * | 2018-04-24 | 2018-07-31 | 佛山市南海奔达模具有限公司 | Point spray formula cooling ring and its hub mold of application |
| CN207681443U (en) * | 2017-12-19 | 2018-08-03 | 佛山市南海奔达模具有限公司 | Hub mold with multiple spot cooling system |
| CN208261798U (en) * | 2018-04-24 | 2018-12-21 | 佛山市南海奔达模具有限公司 | Point spray formula cooling ring and its hub mold of application |
| CN208895124U (en) * | 2018-09-27 | 2019-05-24 | 佛山市南海奔达模具有限公司 | Mold with Simple sealing structure |
-
2020
- 2020-08-20 CN CN202010840936.0A patent/CN111702148A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202155476U (en) * | 2011-06-20 | 2012-03-07 | 刘尚湘 | Multipoint combined cooling device |
| CN102672186A (en) * | 2012-06-07 | 2012-09-19 | 太仓市锦立得粉末冶金有限公司 | Manufacturing process for gear ring in powder metallurgy |
| CN103769559A (en) * | 2014-02-19 | 2014-05-07 | 重庆擎一模具制造有限公司 | Low pressure casting die for multi-point isolated heat spot type large gearbox casing |
| CN103978189A (en) * | 2014-05-29 | 2014-08-13 | 中信戴卡股份有限公司 | Improved die cooling device |
| JP2016132232A (en) * | 2015-01-22 | 2016-07-25 | エスバンス 株式会社 | Metal mold cooling structure |
| CN206869088U (en) * | 2017-05-03 | 2018-01-12 | 佛山市南海奔达模具有限公司 | Cooling water ring and its casting mould of application |
| CN206747574U (en) * | 2017-05-04 | 2017-12-15 | 佛山市南海奔达模具有限公司 | Cooling body on casting mould |
| CN107252877A (en) * | 2017-08-09 | 2017-10-17 | 佛山市南海奔达模具有限公司 | Mould multiple spot cooling body and its hub mold of application |
| CN207127221U (en) * | 2017-08-09 | 2018-03-23 | 佛山市南海奔达模具有限公司 | Mould multiple spot cooling body and its hub mold of application |
| CN207681443U (en) * | 2017-12-19 | 2018-08-03 | 佛山市南海奔达模具有限公司 | Hub mold with multiple spot cooling system |
| CN108339946A (en) * | 2018-04-24 | 2018-07-31 | 佛山市南海奔达模具有限公司 | Point spray formula cooling ring and its hub mold of application |
| CN208261798U (en) * | 2018-04-24 | 2018-12-21 | 佛山市南海奔达模具有限公司 | Point spray formula cooling ring and its hub mold of application |
| CN208895124U (en) * | 2018-09-27 | 2019-05-24 | 佛山市南海奔达模具有限公司 | Mold with Simple sealing structure |
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Application publication date: 20200925 |