CN211101545U - Pressure device for casting head - Google Patents
Pressure device for casting head Download PDFInfo
- Publication number
- CN211101545U CN211101545U CN201921699043.8U CN201921699043U CN211101545U CN 211101545 U CN211101545 U CN 211101545U CN 201921699043 U CN201921699043 U CN 201921699043U CN 211101545 U CN211101545 U CN 211101545U
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- Prior art keywords
- cylinder
- pressurizing
- riser
- casting head
- gland
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- 238000005266 casting Methods 0.000 title claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 210000004907 gland Anatomy 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 19
- 239000002184 metal Substances 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 16
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 10
- 230000005484 gravity Effects 0.000 abstract description 8
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
A pressurizing device for a casting head is characterized by comprising a guide rail moving mechanism for a casting head, a telescopic pressurizing mechanism, a pressurizing mechanism for the casting head and a control mechanism, wherein a guide rail, a displacement cylinder, a cylinder moving frame, a casting head pressurizing cylinder, a heating gland, a heating temperature control power line, a casting head pressurizing cylinder, a casting head pressurizing air pipe, a casting head gland, a casting head pressurizing air hole, a proximity switch, a thermocouple control valve, a P L C controller and the like are arranged below a top plate, when the top plate moves downwards to enable a metal upper die and a metal lower die on a gravity casting machine to be matched, the P L C controller instructs the casting head sealing cylinder control valve to enable the casting head sealing cylinder to press and seal the casting head gland and the casting head, after aluminum alloy liquid is injected into the casting head through a casting head die cavity, the heating gland presses the casting head to pressurize aluminum alloy liquid in the casting head, meanwhile, compressed air pressurizes the casting head pressurizing air formed by the metal liquid level in the casting head through the air hole, and.
Description
Technical Field
The application relates to the field of casting, in particular to a pressurizing device for a casting head for gravity casting.
Background
Gravity casting is the most common casting mode in the casting field, at present, the static pressure of molten metal in a pouring gate and a riser is used for feeding a product, and the feeding effect of the gravity feeding method depends on the gravity (static pressure) generated by the height of the molten metal in the pouring gate and the riser, so that excessive molten metal must be injected, more pouring gate heads and riser heads remained after feeding can be generated in the pouring gate and the riser, the process yield is reduced, the material and energy are wasted, and the production cost is high.
SUMMERY OF THE UTILITY MODEL
The application provides a pressure device for dead head to above-mentioned problem, improves the product yield.
According to the technical scheme of the application: according to the technical scheme of the application: a pressure device for a casting head is characterized by comprising a guide rail moving mechanism for a casting head, a telescopic pressure mechanism, a pressure mechanism for the casting head and a control mechanism;
the guide rail moving mechanism for the sprue comprises a guide rail 3 arranged below a top plate 1, a displacement cylinder 2 is arranged on the outer side of the top end of the guide rail 3, a cylinder moving frame 4 is arranged at the top end of a cylinder rod of the displacement cylinder 2, and a telescopic pressurizing mechanism is arranged below the cylinder moving frame 4;
the telescopic pressurizing mechanism comprises a gate pressurizing cylinder 5 arranged below a cylinder moving frame 4, a heating gland 7 arranged below a cylinder rod of the gate pressurizing cylinder 5, a heating temperature control power line inlet arranged on the cylinder rod of the heating gland 7, a heating temperature control power line 6 arranged in the heating temperature control power line inlet, a graphite sealing ring arranged in a cylinder rod sealing groove of the gate pressurizing cylinder 5, and a pressurizing mechanism for a riser arranged below a top plate 1 beside the top end of the inner side of a guide rail 3;
the pressurizing mechanism for the riser comprises a riser pressurizing cylinder 12 arranged below a top plate 1, a riser pressurizing air pipe 15 is arranged on the lower side of a cylinder rod of the riser pressurizing cylinder 12, a riser gland 11 is arranged at the lower end of the cylinder rod of the riser pressurizing cylinder 12, a riser pressurizing air hole 13 is formed in the riser gland 11, a riser 14 is arranged on one side of a product mold cavity 9, and the riser pressurizing air hole 13 is communicated with the riser pressurizing air pipe 15;
the control mechanism comprises a proximity switch 10 arranged on the top end of the inner side of a guide rail 3, a thermocouple arranged in a heating gland 7, a temperature controller, a displacement cylinder control valve, a sprue cylinder control valve, a riser sealing cylinder control valve, a riser air compression solenoid valve, a contact pressure gauge, a P L C controller and the like arranged in a control system, and has the technical effects that after a top plate 1 moves downwards to enable an upper metal mould 16 on a gravity casting machine to be matched with a lower metal mould 21, the P L C controller instructs a riser sealing cylinder control valve to enable a riser sealing cylinder 12 to press and seal a riser gland 11 and a riser 15, aluminum alloy liquid 17 is injected into a sprue and then is filled into the sprue through a mould cavity, the filling force enables the sprue and the contact pressure gauge arranged at the other end of an air pipe on the riser cover to display pressure, the contact point displayed in the contact pressure gauge is closed when the pressure is matched with the set pressure, a liquid injection displacement cylinder 2 pushes a cylinder moving frame 4 to be right above the sprue 8, the metal liquid level of the sprue and the riser is lower than the metal pressure gauge arranged in an open riser, the contact point outputs a signal to control the P L, the air compression solenoid valve to control the riser to control the air compression solenoid valve, the effective riser, the effective pressure of the riser, the feeder is increased, the pressure of the riser, the feeder, the pressure of the feeder is increased, the feeder, the effective riser after the injection displacement cylinder, the effective riser, the effective pressure of the feeder is increased, the effective riser, the effective pressure of the effective.
Drawings
Fig. 1 is a schematic view showing a state structure of a feeder head pressurizing device according to the present invention provided on a top plate of a casting machine.
Fig. 2 is a schematic structural diagram of a state in which a riser is pressurized and sealed after an upper die and a lower die are closed in the present application.
Fig. 3 is a schematic view showing a state in which only a small amount of molten metal is injected into a gate.
FIG. 4 is a schematic structural view of a state in which a gate heating cover presses gas in the gate and the cover to perform product pressurization feeding on a small amount of molten metal in a casting head;
FIG. 5 is a schematic view showing the structure of a feeder without a pressurizing device for a feeder according to the present invention, in a state where the product is pressurized and fed by gravity (static pressure) generated by the height when a large amount of molten metal must be poured into the feeder; the gate head 18 and the riser head 20 in the figure are gate heads and riser heads remaining after feeding in this state.
Detailed Description
The following description of the embodiments of the present application will be made with reference to the accompanying drawings.
The device comprises an upper top plate 1, a displacement cylinder 2, a guide rail 3, a cylinder moving frame 4, a pouring gate pressurizing cylinder 5, a heating temperature-control power line 6, a heating gland 7, a pouring gate 8, a product die cavity 9, a proximity switch 10, a dead head gland 11, a dead head sealing cylinder 12, a dead head pressurizing air hole 13, a dead head 14, a dead head pressurizing air pipe 15, a metal upper die 16, aluminum alloy liquid 17, a pouring gate head 18, the height 19 of aluminum alloy liquid filled in the dead head, a dead head 20, a metal lower die 21, dead head pressurizing air 22 and the like;
as shown, the present application is a pressure device for a casting head;
according to the technical scheme of the application: a pressure device for a casting head comprises a guide rail moving mechanism for a casting head, a telescopic pressure mechanism, a pressure mechanism for the casting head and a control mechanism;
the guide rail moving mechanism for the pouring gate comprises a guide rail 3, a displacement cylinder 2 and a cylinder moving frame 4, wherein the guide rail 3, the displacement cylinder 2 and the cylinder moving frame are arranged below a top plate 1; the displacement cylinder 2 is arranged on the outer side of the top end of the guide rail 3, the cylinder moving frame 4 is arranged on the top end of a cylinder rod of the displacement cylinder 2, the top end of the cylinder rod is connected with one side of the cylinder moving frame 4, and the upper end of the cylinder moving frame 4 slides in the guide rail 3; the telescopic pressurizing mechanism is arranged below the cylinder moving frame 4;
the telescopic pressurizing mechanism comprises a pouring gate pressurizing cylinder 5, a heating gland 7, a heating temperature-control power line inlet, a heating temperature-control power line 6 and a graphite sealing ring; the sprue pressurizing cylinder 5 is connected below the cylinder moving frame 4, the heating gland 7 is connected below a cylinder rod of the sprue pressurizing cylinder 5, the heating temperature control power line inlet is arranged on the cylinder rod above the heating gland 7, the cylinder rod with the heating temperature control power line inlet facing downwards is arranged in a hollow shape, the heating temperature control power line 6 is arranged in the heating temperature control power line inlet, the graphite sealing ring is arranged in a cylinder rod sealing groove of the sprue pressurizing cylinder 5, and the riser pressurizing mechanism is arranged below a top plate 1 beside the top end of the inner side of the guide rail 3;
the riser pressurizing mechanism comprises a riser pressurizing cylinder 12, a riser pressurizing air pipe 15, a riser gland 11, a riser pressurizing air hole 13 and a riser 14; the riser pressurizing air pipe 15 is arranged on the lower side of the cylinder rod of the riser pressurizing cylinder 12, the riser gland 11 is connected to the lower end of the cylinder rod of the riser pressurizing cylinder 12, the riser pressurizing air hole 13 is arranged in the riser gland 11, and the riser pressurizing air hole 13 is communicated with the riser pressurizing air pipe 15; the riser 14 is arranged on one side of the product mold cavity 9;
the control mechanism comprises a proximity switch 10, a thermocouple, a temperature controller, a displacement cylinder control valve, a pouring head sealing cylinder control valve, a pouring head air compression electromagnetic valve, a contact pressure gauge and a P L C controller, wherein the proximity switch 10 is arranged at the top end of the inner side of the guide rail 3, the thermocouple is arranged in the heating gland 7, the temperature controller, the displacement cylinder control valve, the pouring head sealing cylinder control valve, the pouring head air compression electromagnetic valve, the contact pressure gauge and the P L C controller are arranged in a control cabinet of the control system, the temperature controller is connected with the thermocouple, the displacement cylinder control valve is connected with the displacement cylinder, the pouring head cylinder control valve is connected with the pouring head cylinder, the pouring head sealing cylinder control valve is connected with the air compression sealing cylinder, the pouring head electromagnetic valve is connected with a pouring head compression air pipe 15, and the contact pressure;
in the application, after a top plate 1 moves downwards to enable a metal upper die 16 and a metal lower die 21 on a gravity casting machine to be matched, a P L C controller instructs a riser sealing cylinder control valve to enable a riser sealing cylinder 12 to enable a riser gland 11 and a riser 15 to be pressed and sealed, aluminum alloy liquid 17 is injected into a sprue and then is filled into the riser through a die cavity, the filling force enables a contact pressure gauge arranged at the other end of an air pipe on the riser cavity and the riser cap to display pressure, the pressure displayed in the contact pressure gauge is matched with the set pressure to be closed, after the completion of liquid injection, a displacement cylinder 2 immediately pushes a cylinder moving frame 4 to be right above the sprue 8, the metal liquid level of the sprue and the riser is lower than that of an open type casting head (see the description of the attached drawings), the contact pressure gauge outputs a signal to a P L C controller, the P L C controller sends an instruction to a cylinder sprue control valve and a riser air-injection electromagnetic valve after time delay, the aluminum alloy liquid in the sprue is pressurized while the aluminum alloy liquid in the sprue is pressurized by the heating gland, the aluminum alloy liquid in the sprue, the open type casting head, the pressurizing electromagnetic valve is pressurized, the riser, the pressurizing gas 22 forms a pressurized gas in the riser, the metal liquid level in the riser, the aluminum alloy liquid in the riser is pressurized by the air hole, the.
Claims (1)
1. A pressure device for a casting head is characterized by comprising a guide rail moving mechanism for a casting head, a telescopic pressure mechanism, a pressure mechanism for the casting head and a control mechanism;
the guide rail moving mechanism for the pouring gate comprises a guide rail (3) arranged below a top plate (1), a displacement cylinder (2) is arranged on the outer side of the top end of the guide rail (3), a cylinder moving frame (4) is arranged at the top end of a cylinder rod of the displacement cylinder (2), and a telescopic pressurizing mechanism is arranged below the cylinder moving frame (4);
the telescopic pressurizing mechanism comprises a sprue pressurizing cylinder (5) arranged below a cylinder moving frame (4), a heating gland (7) arranged below a cylinder rod of the sprue pressurizing cylinder (5), a heating temperature-control power line inlet arranged on the cylinder rod on the heating gland (7), a heating temperature-control power line (6) arranged in the heating temperature-control power line inlet, a graphite sealing ring arranged in a cylinder rod sealing groove of the sprue pressurizing cylinder (5), and a pressurizing mechanism for a riser arranged below a top plate (1) beside the top end of the inner side of a guide rail (3);
the pressurizing mechanism for the riser comprises a riser pressurizing cylinder (12) arranged below a top plate (1), a riser pressurizing air pipe (15) is arranged on the lower side of a cylinder rod of the riser pressurizing cylinder (12), a riser gland (11) is arranged at the lower end of the cylinder rod of the riser pressurizing cylinder (12), a riser pressurizing air hole (13) is formed in the riser gland (11), a riser (14) is arranged on one side of a product mold cavity (9), and the riser pressurizing air hole (13) is communicated with the riser pressurizing air pipe (15) through inertia;
the control mechanism comprises a proximity switch (10) arranged at the top end of the inner side of the guide rail (3), a thermocouple arranged in the heating gland (7), and a temperature controller, a displacement cylinder control valve, a pouring gate cylinder control valve, a riser sealing cylinder control valve, a riser air compression electromagnetic valve, a contact pressure gauge and a P L C controller arranged in the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921699043.8U CN211101545U (en) | 2019-10-01 | 2019-10-01 | Pressure device for casting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921699043.8U CN211101545U (en) | 2019-10-01 | 2019-10-01 | Pressure device for casting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211101545U true CN211101545U (en) | 2020-07-28 |
Family
ID=71687940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921699043.8U Active CN211101545U (en) | 2019-10-01 | 2019-10-01 | Pressure device for casting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211101545U (en) |
-
2019
- 2019-10-01 CN CN201921699043.8U patent/CN211101545U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214100 No.2 Tianzhu Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Lihu New Quality Energy saving Technology Co.,Ltd. Country or region after: China Address before: 214100 No.2 Tianzhu Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI LIHU CASTING INDUSTRY Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |