CN109676117B - Reverse overturning pouring device and pouring method for metal mold castings - Google Patents
Reverse overturning pouring device and pouring method for metal mold castings Download PDFInfo
- Publication number
- CN109676117B CN109676117B CN201811613999.1A CN201811613999A CN109676117B CN 109676117 B CN109676117 B CN 109676117B CN 201811613999 A CN201811613999 A CN 201811613999A CN 109676117 B CN109676117 B CN 109676117B
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- pouring
- metal mold
- mold half
- turnover
- reverse
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Classifications
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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
- B22D33/00—Equipment for handling moulds
- B22D33/02—Turning or transposing moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to a reverse turning pouring device and a pouring method of a metal mold casting, wherein the reverse turning pouring device of the metal mold casting comprises a turning device and a die arranged on the turning device; the casting method comprises the following specific steps: the turnover platform of the turnover device is positioned at a horizontal position, and the first metal mold half and the second metal mold half are respectively arranged on the fixed clamping plate and the movable clamping plate to carry out mold closing operation; after die assembly is completed, molten metal is injected into the reverse pouring hopper, and the height of the molten metal is lower than that of the overflow baffle plate; and starting the telescopic cylinder, turning the turning platform to the vertical direction, and enabling molten metal in the reverse pouring hopper to enter the casting groove/riser from the bottommost layer through the pouring gates at different positions until the pouring process is completed. The invention adopts the reverse turning pouring process, so that molten metal can stably enter the die cavity from the lower part, turbulent flow of the molten metal can be reduced, slag blocking is realized, gas in the die cavity is removed, and therefore, casting defects are reduced, and the yield is greatly improved.
Description
Technical Field
The invention relates to the field of metal casting pouring, in particular to a reverse turning pouring device and a pouring method of a metal mold casting.
Background
Metal mold casting, also known as hard mold casting, is a casting method in which liquid metal is poured into a metal mold to obtain a casting. The casting mould is made of metal and can be repeatedly used for several hundred times to thousands of times.
At present, when an aluminum alloy metal mold casting is produced by adopting a turnover pouring process, a normal turnover process is generally adopted, but for castings with thin walls and larger areas, a plurality of pouring heads are required to carry out process configuration, and because the normal turnover process belongs to a top pouring mode, the confluence of the castings cannot be avoided, and the defects of slag inclusion, cold partition, subcutaneous air holes and the like of the castings are easily formed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a reverse overturning pouring device and a pouring method for a metal mold casting.
The invention adopts the following technical scheme to realize the aim:
the reverse turning pouring device for the metal mold casting comprises a turning device and a mold arranged on the turning device;
the turnover device comprises a base, two turnover brackets are arranged on the base, a turnover platform is rotatably installed between the two turnover brackets through a rotating shaft, a telescopic cylinder is hinged to the bottom of the turnover platform, the other end of the telescopic cylinder is hinged to the base, a support frame is arranged at one end, opposite to the turnover brackets, of the base, when the turnover platform is in a horizontal position, the top of the support frame props against the bottom of the turnover platform, a fixed clamping plate is arranged at one end of the turnover platform, a fixed table is arranged at the other end of the turnover platform, a clamping cylinder is installed on the fixed table, a telescopic rod of the clamping cylinder faces the fixed clamping plate and is connected with a movable clamping plate, and a plurality of installation positioning rods are arranged on the adjacent surfaces of the fixed clamping plate and the movable clamping plate;
the die comprises a first metal mold half and a second metal mold half which are in butt joint, a casting groove/casting head is arranged on the butt joint surface of the first metal mold half and the second metal mold half, connecting plates are arranged on the opposite surfaces of the first metal mold half and the second metal mold half, a plurality of connecting rods are arranged between the connecting plates and the first metal mold half and between the connecting plates and the second metal mold half, mounting holes corresponding to the mounting positioning rods are penetrated through the connecting plates, the first metal mold half is mounted on the mounting positioning rods of the fixed clamping plates through the mounting holes, the second metal mold half is mounted on the mounting positioning rods of the movable clamping plates through the mounting holes, a reverse pouring hopper is arranged at the bottom end of one surface of the second metal mold half opposite to the first metal mold half, a communication port is arranged between the reverse pouring hopper and the casting groove/casting head, a pouring port is arranged on one side of the top of the reverse pouring hopper, a flow guide plate is arranged between the bottom of the reverse pouring hopper and the communication port, and the bottom of the reverse pouring hopper is lower than the communication port, and the communication port is provided with an overflow baffle at the upper end of the reverse pouring hopper.
And one side of the movable clamping plate is provided with guide rods at the upper end and the lower end of the telescopic rod of the clamping cylinder, and the guide rods penetrate through the fixed table and are connected with clamping plates.
The turnover platform is provided with a sliding rail below the movable clamping plate, the bottom of the movable clamping plate is provided with a sliding block, and the sliding block is slidably arranged in the sliding rail.
The top of the supporting frame is provided with a rubber shock pad.
The pouring method of the metal mold casting reverse turning pouring device comprises the following specific steps of:
s1, a turnover platform of a turnover device is positioned at a horizontal position, a first metal mold half and a second metal mold half are respectively arranged on a fixed clamping plate and a movable clamping plate, and mold clamping operation is carried out under the driving of a clamping cylinder;
s2, after die assembly is completed, molten metal is injected into the reverse pouring hopper, and the height of the molten metal is lower than that of the overflow baffle;
s3, starting a telescopic cylinder, turning over the turning-over platform to the vertical direction, and reversing molten metal in the pouring hopper to enter the casting groove/pouring head from the bottommost layer through pouring gates at different positions until the pouring process is completed;
s4, after pouring is completed, cooling, overturning the overturning platform to a horizontal position, opening the die, and taking out the casting.
The beneficial effects of the invention are as follows: the invention adopts the reverse turning pouring process, can lead the molten metal to stably enter the die cavity from the lower part, thus reducing the turbulence of the molten metal, playing the role of blocking slag and exhausting the gas in the die cavity, reducing the casting defects, greatly improving the yield and being particularly suitable for the production of metal aluminum alloy castings with thin walls and larger areas.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a turnover device;
FIG. 3 is a schematic structural view of a mold;
FIG. 4 is a schematic illustration of the present invention as cast;
in the figure: 1-a base; 2-turning over the bracket; 3-turning over the platform; 4-a telescopic cylinder; 5-supporting frames; 6-fixing the clamping plate; 7-a fixed table; 8-clamping a cylinder; 9-moving the clamping plate; 10-installing a positioning rod; 11-a first metal mold half; 12-a second metal mold half; 13-casting trough/feeder; 14-connecting plates; 15-connecting rods; 16-mounting holes; 17-reversing the pouring hopper; 18-a communication port; 19-pouring gate; 20-a deflector; 21-an overflow barrier; 22-a guide rod; 23-clamping plates; 24-sliding rails; 25-sliding blocks;
the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 3, a metal mold casting reverse turning pouring device comprises a turning device and a mold arranged on the turning device;
the turnover device comprises a base 1, two turnover brackets 2 are arranged on the base 1, a turnover platform 3 is rotatably installed between the two turnover brackets 2 through a rotating shaft, a telescopic cylinder 4 is hinged to the bottom of the turnover platform 3, the other end of the telescopic cylinder 4 is hinged to the base 1, a support frame 5 is arranged at one end, opposite to the turnover brackets 2, of the base 1, when the turnover platform 3 is in a horizontal position, the top of the support frame 5 is propped against the bottom of the turnover platform 3, a fixed clamping plate 6 is arranged at one end of the turnover platform 3, a fixed table 7 is arranged at the other end of the turnover platform, a clamping cylinder 8 is installed on the fixed table 7, a telescopic rod of the clamping cylinder 8 faces the fixed clamping plate 6 and is connected with a movable clamping plate 9, and a plurality of installation positioning rods 10 are arranged on adjacent surfaces of the fixed clamping plate 6 and the movable clamping plate 9;
the die comprises a first metal mold half 11 and a second metal mold half 12 which are butted together, a casting groove/riser 13 is arranged on the butted surface of the first metal mold half 11 and the second metal mold half 12, connecting plates 14 are arranged on the opposite surfaces of the first metal mold half 11 and the second metal mold half 12, a plurality of connecting rods 15 are arranged between the connecting plates 14 and the first metal mold half 11 and between the connecting plates 14 and the second metal mold half 12, mounting holes 16 corresponding to the mounting positioning rods 10 are penetrated through the connecting plates 14, the first metal mold half 11 is mounted on the mounting positioning rods 10 of the fixed clamping plates 6 through the mounting holes 16, the second metal mold half 12 is mounted on the mounting positioning rods 10 of the movable clamping plates 9 through the mounting holes 16, a reverse pouring hopper 17 is arranged at the bottom end of one surface of the second metal mold half 12 opposite to the first metal mold half 11, a communication port 18 is arranged between the reverse pouring hopper 17 and the casting groove/riser 13, a pouring port 19 is arranged at one side of the top of the reverse pouring hopper 17, a bottom of the reverse pouring hopper 17 is lower than the bottom 18, and the bottom of the reverse pouring hopper 17 is communicated with the flow guiding plate 18 at the upper end of the baffle plate 20.
The movable clamping plate 9 is provided with a guide rod 22 at the upper end and the lower end of the telescopic rod of the clamping cylinder 8, and the guide rod 22 penetrates through the fixed table 7 and is connected with a clamping plate 23.
The turnover platform 3 is provided with a sliding rail 24 below the movable clamping plate 9, the bottom of the movable clamping plate 9 is provided with a sliding block 25, and the sliding block 25 is slidably arranged in the sliding rail 24.
The top of the supporting frame 5 is provided with a rubber shock pad.
As shown in fig. 4, the pouring method of the metal mold casting reverse turning pouring device specifically comprises the following steps:
s1, a turnover platform 3 of a turnover device is positioned at a horizontal position, a first metal mold half 11 and a second metal mold half 12 are respectively arranged on a fixed clamping plate 6 and a movable clamping plate 9, and mold clamping operation is carried out under the drive of a clamping cylinder 8;
s2, after die assembly is completed, molten metal is injected into the reverse pouring hopper 17, and the height of the molten metal is lower than that of the overflow baffle 21;
s3, starting the telescopic cylinder 4, turning the turning platform 3 to the vertical direction, and enabling molten metal in the reverse pouring hopper 17 to enter the casting groove/riser 13 from the bottommost layer through the pouring gates at different positions until the pouring process is completed;
s4, after pouring is completed, cooling, overturning the overturning platform 3 to a horizontal position, opening the die, and taking out the casting.
The mould is arranged on the turnover device, the turnover platform 3 is positioned at the horizontal position shown in figure 1, molten metal is poured into the pouring hopper 17 and then reversely turned to be poured, and in the process, the molten metal firstly stably enters the cavity from the bottommost part through pouring gates at different positions, so that the molten metal is ensured to have little turbulence; gradually exhausting the gas in the cavity along with the continuous change of the overturning angle; the oxidized slag on the liquid surface is suspended on the surface of the molten metal and finally rises to the riser so as to be finally discharged.
The reverse turning casting mode meets the special bottom casting requirement of aluminum alloy, so that the defects of splashing, turbulence, oxide slag inclusion and air holes of the metal liquid generated in the normal turning mode can be avoided.
In order to prevent the overflow of molten metal from being caused by excessive casting in the reverse pouring process, the reverse pouring hopper 17 is also provided with an overflow baffle 21.
The invention has stable reverse turning pouring process, can finally achieve the casting with less oxidation slag inclusion, air holes and cold insulation, and can produce aluminum alloy castings with stable quality and high yield, thereby obtaining high-quality castings.
The invention adopts the reverse turning pouring process, can lead the molten metal to stably enter the die cavity from the lower part, thus reducing the turbulence of the molten metal, playing the role of blocking slag and exhausting the gas in the die cavity, reducing the casting defects, greatly improving the yield and being particularly suitable for the production of metal aluminum alloy castings with thin walls and larger areas.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the invention, or applied directly to other applications without modification, within the scope of the invention.
Claims (5)
1. The reverse turning pouring device for the metal mold casting is characterized by comprising a turning device and a die arranged on the turning device;
the turnover device comprises a base (1), two turnover brackets (2) are arranged on the base (1), a turnover platform (3) is rotatably arranged between the two turnover brackets (2) through a rotating shaft, a telescopic cylinder (4) is hinged to the bottom of the turnover platform (3), the other end of the telescopic cylinder (4) is hinged to the base (1), a support frame (5) is arranged at one end, opposite to the turnover brackets (2), of the base (1), when the turnover platform (3) is in a horizontal position, the top of the support frame (5) props against the bottom of the turnover platform (3), a fixed clamping plate (6) is arranged at one end of the turnover platform (3), a fixed table (7) is arranged at the other end of the turnover platform, a clamping cylinder (8) is arranged on the fixed table (7), a telescopic rod of the clamping cylinder (8) faces the fixed clamping plate (6) and is connected with a movable clamping plate (9), and a plurality of installation positioning rods (10) are arranged on adjacent surfaces of the fixed clamping plate (6) and the movable clamping plate (9).
The die comprises a first metal mold half (11) and a second metal mold half (12) which are butted together, a casting groove/casting head (13) is arranged on the butted surface of the first metal mold half (11) and the second metal mold half (12), connecting plates (14) are arranged on the opposite surfaces of the first metal mold half (11) and the second metal mold half (12), a plurality of connecting rods (15) are arranged between the connecting plates (14) and the first metal mold half (11) and between the second metal mold half (12), a mounting hole (16) corresponding to the mounting positioning rod (10) is penetrated on the connecting plates (14), the first metal mold half (11) is mounted on the mounting positioning rod (10) of the fixed clamp plate (6) through the mounting hole (16), the second metal mold half (12) is mounted on the mounting positioning rod (10) of the movable clamp plate (9) through the mounting hole (16), a reversing pouring hopper (17) is arranged at the bottom end of the opposite surface of the second metal mold half (12) and the first metal mold half (11), a casting head (17) is arranged between the reversing pouring hopper and the top of the first metal mold half (11), a casting groove (17) is arranged on one side of the pouring hopper (17), the bottom of the reverse pouring hopper (17) is lower than the communication port (18) and a guide plate (20) is arranged between the bottom and the communication port (18), and the upper end of the reverse pouring hopper (17) is provided with an overflow baffle (21) at the upper end of the communication port (18).
2. The reverse turnover pouring device for metal castings according to claim 1, wherein a guide rod (22) is arranged at the upper end and the lower end of a telescopic rod of the clamping cylinder (8) on one side of the movable clamping plate (9), and the guide rod (22) penetrates through the fixed table (7) and is connected with a clamping plate (23).
3. The reverse turnover pouring device for metal castings according to claim 2, wherein a sliding rail (24) is arranged below the movable clamping plate (9) on the turnover platform (3), a sliding block (25) is arranged at the bottom of the movable clamping plate (9), and the sliding block (25) is slidably mounted in the sliding rail (24).
4. A metal mold casting reverse turning pouring device according to claim 3, wherein the top of the supporting frame (5) is provided with a rubber shock pad.
5. The pouring method of the reverse turnover pouring device for metal castings according to any one of claims 1 to 4, which is characterized by comprising the following specific steps:
s1, a turnover platform (3) of a turnover device is positioned at a horizontal position, a first metal mold half (11) and a second metal mold half (12) are respectively arranged on a fixed clamping plate (6) and a movable clamping plate (9), and mold clamping operation is carried out under the drive of a clamping cylinder (8);
s2, after die assembly is completed, molten metal is injected into the reverse pouring hopper (17), and the height of the molten metal is lower than that of the overflow baffle (21);
s3, starting the telescopic cylinder (4), turning the turning platform (3) to the vertical direction, and reversing molten metal in the pouring hopper (17) from the bottommost layer to enter the casting groove/pouring head (13) through pouring gates at different positions until the pouring process is completed;
s4, after pouring is completed, cooling, overturning the overturning platform (3) to a horizontal position, opening the die, and taking out the casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613999.1A CN109676117B (en) | 2018-12-27 | 2018-12-27 | Reverse overturning pouring device and pouring method for metal mold castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613999.1A CN109676117B (en) | 2018-12-27 | 2018-12-27 | Reverse overturning pouring device and pouring method for metal mold castings |
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| Publication Number | Publication Date |
|---|---|
| CN109676117A CN109676117A (en) | 2019-04-26 |
| CN109676117B true CN109676117B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811613999.1A Active CN109676117B (en) | 2018-12-27 | 2018-12-27 | Reverse overturning pouring device and pouring method for metal mold castings |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433826B (en) * | 2022-01-25 | 2023-04-21 | 衡阳市精峰机械有限公司 | Casting pouring device and pouring molding process |
| CN117622607B (en) * | 2024-01-25 | 2024-05-07 | 湖南盈准科技有限公司 | Clamping equipment with safeguard function for Bluetooth headset packaging |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538512A (en) * | 1939-12-07 | 1941-08-07 | Aluminum Co Of America | Improvements in or relating to molds for casting purposes |
| JP2004268082A (en) * | 2003-03-07 | 2004-09-30 | Fujino Gijutsu Consultant:Kk | Tilting casting apparatus and casting method |
| JP2011067822A (en) * | 2009-09-22 | 2011-04-07 | Sintokogio Ltd | Mold transferring device |
| CN102806341A (en) * | 2012-08-24 | 2012-12-05 | 中国南方航空工业(集团)有限公司 | Casting method of magnesium alloy sand mould |
| CN203599476U (en) * | 2013-10-23 | 2014-05-21 | 徐水县兴华铸造有限公司 | Metal mold and metal mold casting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209792584U (en) * | 2018-12-27 | 2019-12-17 | 天津市航宇嘉瑞科技股份有限公司 | Metal mold casting reverse-overturning pouring device |
-
2018
- 2018-12-27 CN CN201811613999.1A patent/CN109676117B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538512A (en) * | 1939-12-07 | 1941-08-07 | Aluminum Co Of America | Improvements in or relating to molds for casting purposes |
| JP2004268082A (en) * | 2003-03-07 | 2004-09-30 | Fujino Gijutsu Consultant:Kk | Tilting casting apparatus and casting method |
| JP2011067822A (en) * | 2009-09-22 | 2011-04-07 | Sintokogio Ltd | Mold transferring device |
| CN102806341A (en) * | 2012-08-24 | 2012-12-05 | 中国南方航空工业(集团)有限公司 | Casting method of magnesium alloy sand mould |
| CN203599476U (en) * | 2013-10-23 | 2014-05-21 | 徐水县兴华铸造有限公司 | Metal mold and metal mold casting device |
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| Publication number | Publication date |
|---|---|
| CN109676117A (en) | 2019-04-26 |
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