CN216729501U - Inner cavity layered cooling system of low-voltage motor casing die - Google Patents
Inner cavity layered cooling system of low-voltage motor casing die Download PDFInfo
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- CN216729501U CN216729501U CN202123359356.9U CN202123359356U CN216729501U CN 216729501 U CN216729501 U CN 216729501U CN 202123359356 U CN202123359356 U CN 202123359356U CN 216729501 U CN216729501 U CN 216729501U
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Abstract
The utility model discloses a layered cooling system for an inner cavity of a low-voltage motor casing die, wherein an upper die of the die comprises an upper die inner cylinder, the middle part of the upper die inner cylinder is provided with a cooling cavity, the upper die inner cylinder is sequentially provided with at least two groups of cooling grooves on the side wall of the cooling cavity from top to bottom, the cooling grooves are annularly arranged on the side wall of the cooling cavity, cooling pipes can be detachably connected in each group of cooling grooves and are used for cold air or cold water mist to flow through, and all the cooling pipes are not communicated and are respectively communicated with an air inlet pipe and an air outlet pipe. According to the utility model, all cooling pipes are respectively controlled by controlling different air inlet pipes and air outlet pipes, so that the casting low-voltage motor casings in different areas in the cavity are cooled, and the casting is cooled in a layering manner by adopting air cooling or water mist cooling, so that the purpose of cooling the casting from top to bottom is achieved, and the solidification sequence of the casting from top to bottom is further ensured; and the cooling gradient of the mold can be adjusted by adjusting the air-cooled opening time, so that the product is sequentially solidified, and the feeding effect is achieved.
Description
Technical Field
The utility model relates to the technical field of molds, in particular to a layered cooling system for an inner cavity of a low-voltage motor shell mold.
Background
The manufacturing of motor housing is a very important ring in the motor production link, and the shrinkage porosity problem of low pressure motor housing mould inner chamber is the subject that I searched for, because motor housing product height is more than 270mm, and the runner position is relatively poor to the feeding effect on top, and the inner chamber produces the shrinkage porosity defect easily, and traditional mould adopts the form that the top surface adds the rising head to carry out the feeding to the top surface region. The motor shell needs to be heated when being poured, the temperature needs to be reduced after the motor shell is poured, the most common cooling mode is water cooling, but the motor shell belongs to a thin-wall part, the water cooling strength is too high, the temperature of a die is reduced too fast after the motor shell is opened for a long time, the die is inconvenient to return to the temperature, the product can have cold shut and insufficient pouring, the opening time is too short, and the product can not have the cooling effect and can shrink loose; therefore, a layered cooling system for the inner cavity of the low-voltage motor casing mold is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a layered cooling system for an inner cavity of a low-voltage motor casing die, which is used for solving the problems in the prior art.
In order to achieve the purpose, the utility model provides the following scheme:
the utility model provides a low-voltage motor casing die inner cavity layered cooling system, wherein a motor casing die comprises a sand core and a die upper die arranged on the outer side of the sand core, a cavity is formed between the sand core and the die upper die, the die upper die comprises an upper die inner cylinder, a cooling cavity is formed in the middle of the upper die inner cylinder, at least two groups of cooling grooves are sequentially formed in the upper die inner cylinder on the side wall of the cooling cavity from top to bottom, the cooling grooves are annularly arranged on the side wall of the cooling cavity, a cooling pipe can be detachably connected in each group of cooling grooves and is used for flowing cold air or cold water mist, and all the cooling pipes are not communicated and are respectively communicated with an air inlet pipe and an air outlet pipe.
Preferably, the cooling grooves are provided with three groups, one group of cooling grooves is arranged in the top surface area of the low-voltage motor casing to be poured, the other group of cooling grooves is arranged in the middle area of the low-voltage motor casing to be poured, and the last group of cooling grooves is arranged in the downward 25-35mm area in the middle of the low-voltage motor casing to be poured.
Preferably, the section of the cooling groove is circular, the diameter of the cooling groove is 10-14mm, and the distance from the cooling groove to the cavity is set to be 10-14 mm.
Preferably, the diameter of the cooling groove is 12mm, and the distance from the cooling groove to the cavity is 12 mm.
Preferably, the flow rate of the cold air or the cold water fog flowing through the cooling pipe is 700 +/-100 m3/h。
Preferably, the cooling device further comprises a cooling assembly, the cooling assembly comprises two groups of cooling channels which are arranged on the side wall of the cooling cavity in parallel and a plurality of groups of communicating grooves which are arranged between the two groups of cooling channels, cooling pipelines are respectively arranged in the two groups of cooling channels, communicating pipelines are arranged in the communicating grooves of each group, and two ends of each communicating pipeline are respectively communicated with the two groups of cooling pipelines.
Preferably, the cooling duct located closer to the upper side is communicated with an air inlet duct, and the cooling duct located closer to the lower side is communicated with an air outlet duct.
The utility model discloses the following technical effects: the utility model controls different air inlet pipes and air outlet pipes to respectively control all cooling pipes, thereby cooling the poured low-voltage motor casings in different areas in the cavity; and the cooling gradient of the mold can be adjusted by adjusting the air-cooling opening time, so that the product is sequentially solidified, and the feeding effect is achieved. Because the motor shell belongs to a thin-wall part, the water cooling strength is too large, the temperature of the mould is reduced too fast after the motor shell is opened for a long time, the mould is inconvenient to return to the temperature, the product can have cold shut and insufficient watering, the opening time is too short, and the product can have shrinkage porosity after the product has no cooling effect. The risk of top surface shrinkage porosity is avoided by the layered cooling design of the motor casing cavity, the top surface dead head is eliminated, the process yield is improved by about 10%, the solidification sequence of the casting is met by the layered cooling design, the shrinkage porosity of the inner cavity is reduced, the production process is stable and reliable, and therefore the production efficiency is improved, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the structure of an upper mold inner cylinder of the present invention;
FIG. 2 is a schematic view of the cooling system of the present invention;
FIG. 3 is a schematic view of the cooling assembly of the present invention.
Wherein, 1 is the last mould inner tube, 2 is the cooling chamber, 3 is the cooling bath, 4 is the cooling tube, 5 is cooling channel, 6 is the intercommunication groove, 7 is the cooling duct, 8 is the intercommunication pipeline, 9 is the inlet duct, 10 is the pipeline of giving vent to anger.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Example 1
The utility model provides a low-voltage motor casing die cavity layered cooling system, a motor casing die comprises a sand core and a die upper die arranged on the outer side of the sand core, a cavity is formed between the sand core and the die upper die, the die upper die comprises an upper die inner barrel 1, a cooling cavity 2 is formed in the middle of the upper die inner barrel 1, at least two groups of cooling grooves 3 are sequentially formed in the side wall of the cooling cavity 2 from top to bottom in the upper die inner barrel 1, the cooling grooves 3 are annularly arranged on the side wall of the cooling cavity 2, cooling pipes 4 can be detachably connected in each group of cooling grooves 3, the cooling pipes 4 are used for flowing cold air or cold water mist, and all the cooling pipes 4 are not communicated and are respectively communicated with an air inlet pipe and an air outlet pipe. All the cooling pipes 4 are respectively controlled by controlling different air inlet pipes and air outlet pipes, so that the cast low-voltage motor casings in different areas in the cavity are cooled; and the cooling gradient of the mold can be adjusted by adjusting the air-cooled opening time, so that the product is sequentially solidified, and the feeding effect is achieved. The motor shell is a thin-wall part, the water cooling strength is too high, the temperature of the die is reduced too fast after the opening time is too long, the die is not convenient to return to the temperature, the product can have cold shut and insufficient pouring, the opening time is too short, and the product can have shrinkage porosity after the cooling effect is not achieved. The risk of top surface shrinkage porosity is avoided by the layered cooling design of the motor casing cavity, the top surface dead head is eliminated, the process yield is improved by about 10%, the solidification sequence of the casting is met by the layered cooling design, the shrinkage porosity of the inner cavity is reduced, the production process is stable and reliable, and therefore the production efficiency is improved, and the production cost is reduced.
According to the further optimization scheme, the cooling grooves 3 are provided with three groups, wherein one group of cooling grooves 3 are arranged in the top surface area of the low-voltage motor casing to be poured, the other group of cooling grooves 3 are arranged in the middle area of the low-voltage motor casing to be poured, and the last group of cooling grooves 3 are arranged in the downward 25-35mm area in the middle of the low-voltage motor casing to be poured. The position of cooling bath 3 and the interval setting between the adjacent cooling bath 3 need specifically design according to the product, and low voltage motor shell structure is relatively more regular from top to bottom, so the interval can the design the same, and the interval is the same or different needs carry out specific analysis according to the product molding, can play the effect of adjustment mould cooling gradient during the cooling.
According to the further optimization scheme, the section of the cooling groove 3 is circular, the diameter of the cooling groove 3 is 10-14mm, the distance from the cooling groove 3 to the cavity is set to be 10-14mm, and the cooling speed can be better controlled while the cooling effect is ensured by adjusting the distance from the cooling groove 3 and the distance from the cooling groove 3 to the cavity.
In a further optimized scheme, the diameter of the cooling groove 3 is 12mm, and the distance from the cooling groove 3 to the cavity is 12 mm.
In a further optimized scheme, the flow rate of cold air or cold water mist flowing through the cooling pipe 4 is 700 +/-100 m3And h, air cooling and water mist cooling can effectively cool the die by adjusting flow and time, and can be controlled better. In a specific scheme, three groups of cooling grooves 3 are arranged, 20s after pouring is finished, the cooling pipe 4 on the uppermost layer is opened, the cooling time is set to be 50s, and the flow rate is set to be 700 +/-100 m3H; 50s after the pouring is finished, opening the cooling pipe 4 in the middle, setting the cooling time to be 80s and the flow rate to be 700 +/-100 m3H; 80s after the pouring is finished, opening the cooling pipe 4 at the bottom, setting the cooling time to be 100s and the flow rate to be 700 +/-100 m3/h。
Example 2:
referring to fig. 3, the present embodiment provides a mold cavity layered cooling system for a low-voltage motor casing, and the present embodiment differs from embodiment 1 only in that: the cooling device also comprises a cooling assembly, the cooling assembly comprises two groups of cooling channels 5 which are arranged on the side wall of the cooling cavity 2 in parallel and a plurality of groups of communicating grooves 6 which are arranged between the two groups of cooling channels 5, cooling pipelines 7 are respectively arranged in the two groups of cooling channels 5, communicating pipelines 8 are arranged in each group of communicating grooves 6, two ends of each communicating pipeline 8 are respectively communicated with the two groups of cooling pipelines 7, the cooling pipeline 7 which is positioned on the upper side is communicated with an air inlet pipeline 9, the cooling pipeline 7 which is positioned on the lower side is communicated with an air outlet pipeline 10, the casting in the circumferential upper cavity of the cooling assembly is cooled through the upper and lower groups of cooling pipelines 7 and the communicating pipelines 8 which are positioned between the upper and lower groups of cooling pipelines 7, the cooling area is enlarged compared with that of the cooling pipes 4, meanwhile, because the air inlet pipeline 9 is connected with the cooling pipeline 7 which is positioned on the upper side, the air outlet pipeline 10 is connected with the communicating pipelines 8, the gradient of the casting during cooling still exists, so that the purpose of cooling the casting from top to bottom is achieved, and the solidification sequence of the casting from top to bottom is further ensured.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (7)
1. The utility model provides a low voltage motor casing mould inner chamber cooling system that divides into layers, motor casing mould include the psammitolite and set up mould on the mould in the psammitolite outside, are the die cavity between mould on psammitolite and the mould, its characterized in that: mould on the mould includes last mould inner tube (1), it has seted up cooling chamber (2) to go up mould inner tube (1) middle part, it has seted up in proper order on the lateral wall of cooling chamber (2) from the top down and has been no less than two sets of cooling bath (3) to go up mould inner tube (1), cooling bath (3) annular is arranged on the lateral wall of cooling chamber (2), every group all can dismantle in cooling bath (3) and be connected with cooling tube (4), cooling tube (4) are used for flowing through cold air or cold water smoke, all cooling tube (4) all do not communicate and communicate respectively have intake pipe and outlet duct.
2. The die cavity layered cooling system for the low-voltage motor casing as claimed in claim 1, wherein: the cooling grooves (3) are provided with three groups, wherein one group of cooling grooves (3) are arranged in the top surface area of the low-voltage motor casing to be poured, the other group of cooling grooves (3) are arranged in the middle area of the low-voltage motor casing to be poured, and the last group of cooling grooves (3) are arranged in the downward 25-35mm area in the middle of the low-voltage motor casing to be poured.
3. The die cavity layered cooling system for the low-voltage motor casing as claimed in claim 1, wherein: the section of the cooling groove (3) is circular, the diameter of the cooling groove (3) is 10-14mm, and the distance from the cooling groove (3) to the cavity is 10-14 mm.
4. The die cavity layered cooling system for the low-voltage motor casing as claimed in claim 3, wherein: the diameter of the cooling groove (3) is 12mm, and the distance from the cooling groove (3) to the cavity is 12 mm.
5. The die cavity layered cooling system for the low-voltage motor casing as claimed in claim 1, wherein: the flow of cold air or cold water fog flowing through the cooling pipe (4) is 700 +/-100 m3/h。
6. The die cavity layered cooling system for the low-voltage motor casing as claimed in claim 1, wherein: still include cooling module, cooling module is including offering on cooling chamber (2) lateral wall and parallel arrangement's two sets of cooling channel (5) and setting two sets of communicating groove (6) between cooling channel (5), two sets of be provided with cooling duct (7) respectively in cooling channel (5), every group be provided with communicating pipe (8) in communicating groove (6), the both ends of communicating pipe (8) are linked together with two sets of cooling duct (7) respectively.
7. The die cavity layered cooling system for the low-voltage motor casing as claimed in claim 6, wherein: the cooling pipeline (7) which is positioned close to the upper side is communicated with an air inlet pipeline (9), and the cooling pipeline (7) which is positioned close to the lower side is communicated with an air outlet pipeline (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123359356.9U CN216729501U (en) | 2021-12-29 | 2021-12-29 | Inner cavity layered cooling system of low-voltage motor casing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123359356.9U CN216729501U (en) | 2021-12-29 | 2021-12-29 | Inner cavity layered cooling system of low-voltage motor casing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216729501U true CN216729501U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123359356.9U Active CN216729501U (en) | 2021-12-29 | 2021-12-29 | Inner cavity layered cooling system of low-voltage motor casing die |
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| Country | Link |
|---|---|
| CN (1) | CN216729501U (en) |
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2021
- 2021-12-29 CN CN202123359356.9U patent/CN216729501U/en active Active
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