CN212239119U

CN212239119U - Negative pressure nodulizer casting ingot mould device

Info

Publication number: CN212239119U
Application number: CN201922501622.3U
Authority: CN
Inventors: 沈玉祥
Original assignee: Nanjing Fufeng Composite Material Co ltd
Current assignee: Nanjing Fufeng Composite Material Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-12-29
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a negative pressure formula nodulizer casting ingot mould device, use in the metal smelting field, it includes the base, fixedly connected with link on the base, the top fixedly connected with of link goes up the mould lid, base fixedly connected with elevating platform, there is the crane along vertical direction sliding connection on the elevating platform, a plurality of hydraulic cylinder of fixedly connected with on the base station, the piston rod of a plurality of hydraulic cylinder all upwards extend and with crane fixed connection, be equipped with the bed die on the crane, go up the mould and cover side fixedly connected with filling box, filling bottom of the box portion fixedly connected with connecting block, filling bottom of the box portion is equipped with the filling hole, go up a plurality of exhaust tubes of mould lid upper side fixed connection, the one end that the upper mould lid was kept away from to the. The utility model discloses have and cause the negative pressure through the pouring cavity that forms between bed die and last mould cover, reduce remaining air among the pouring front mould to reduce nodulizer cooling solidification in-process and the contact of air, improve product quality's effect.

Description

Negative pressure nodulizer casting ingot mould device

Technical Field

The utility model belongs to the technical field of metal-smelting's technique and specifically relates to a negative pressure formula nodulizer casting ingot mould device is related to.

Background

Nodulizers are certain metals or alloys added to the liquid iron in order to obtain spheroidal graphite cast iron. At present, most of nodulizers are prepared by fire smelting, and liquid nodulizers are finally obtained. Casting is the most common method for changing liquid nodulizing agent into solid nodulizing agent, and the cast ingot mold is the most used equipment, and the metal type cast ingot mold is widely adopted. The nodulizer is used for oxidizing the surface of a nodulizer cast ingot in the casting and cooling process to form a layer of white magnesium oxide adhesion, and when the content of magnesium oxide in the nodulizer is high, the nodulizing effect of the nodulizer on molten iron can be seriously influenced. Therefore, how to reduce the formation of oxides during the smelting process, and the reduction of the content of oxides, particularly magnesium oxide, in the nodulizer is a commonly sought goal in the industry

Chinese utility model patent with publication number CN207668452U discloses a device for casting ingot mold with high quality negative pressure nodulizer. It includes the base, be equipped with the triangle-shaped support frame on one side of base up end, the opposite side is equipped with the backup pad with triangle-shaped support frame one-to-one, set up the pivot through the bearing frame at triangle-shaped support frame up end, it is connected with the mount pad to rotate in the pivot, the one end and the backup pad up end laminating of pivot are kept away from to the mount pad, be equipped with alloy casting die utensil on the mount pad, one side of keeping away from the triangle-shaped support frame at the mount pad is equipped with pivot cardboard and brace table, it is connected with alloy casting die utensil matched with apron to rotate at the pivot cardboard, be equipped with the runner just to. According to the device, the cover plate is additionally arranged on the casting mold, and the pouring gate is arranged on the cover plate, so that the contact area of the nodulizer and air in the cooling molding process is reduced, and the generation of oxides is reduced.

The above prior art solutions have the following drawbacks: in the pouring process, the mould contains a large amount of air, and bubbles are easily wrapped in the process that the liquid nodulizer enters the pouring gate, so that the content of oxides is increased in the cooling process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a negative pressure formula nodulizer casting ingot mould device.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a negative pressure type nodulizer casting ingot mold device comprises a base, wherein a connecting frame is fixedly connected to the base, an upper mold cover is fixedly connected to the top end of the connecting frame, a lifting table is fixedly connected to the base, a lifting frame is connected to the lifting table in a sliding mode in the vertical direction, a plurality of lifting hydraulic cylinders are fixedly connected to the base, piston rods of the lifting hydraulic cylinders extend upwards and are fixedly connected with the lifting frame, a lower mold is arranged on the lifting frame, a filling box is fixedly connected to the upper side of the upper mold cover, a connecting block is fixedly connected to the bottom of the filling box, a filling hole is formed in the connecting block, a cavity is formed in one side, located in the filling hole, of the connecting block, a cylinder is fixedly connected to the cavity, the piston rod of the cylinder is perpendicular to the axial direction of the filling hole, a partition plate is fixedly connected to the piston rod of the cylinder, and penetrates, the filling hole penetrates through the upper die cover, the upper side of the upper die cover is fixedly connected with a plurality of exhaust pipes, and a vacuum pump is arranged at one end, far away from the upper die cover, of each exhaust pipe.

By adopting the technical scheme, the upper die cover is fixedly arranged, the lower die is arranged in a sliding way along the vertical direction, when the lower die moves upwards under the driving of the lifting hydraulic cylinder and is tightly propped against the upper die cover, a closed pouring cavity is formed in the lower die, and when in actual pouring, the vacuum pump starts to work at first, negative pressure is formed in the lower die, then a worker pours the nodulizer in a molten state into the filling box, at the moment, the filling hole is sealed by the partition plate, then the vacuum pump stops working, the piston rod of the cylinder retracts to enable the partition plate to retract into the cavity, so that the nodulizer in a molten state flows into the lower die and is gradually cooled to form a casting ingot, because the air in the pouring cavity formed between the lower die and the upper die cover is discharged in advance through the vacuum pump, the possibility that the nodulizer is mixed with the air when entering is reduced, and the partition plate stretches out again and closes the filling hole after the pouring cavity is filled with the nodulizer in a molten state.

The utility model discloses further set up to: articulated on the crane have the upset pneumatic cylinder, just the top and the bed die of crane are articulated, the upset pneumatic cylinder is located the bed die and keeps away from the below of crane and bed die hinged end one side, just the piston rod of upset pneumatic cylinder is articulated with the bottom of bed die.

Through adopting above-mentioned technical scheme, through setting up the upset pneumatic cylinder, the inside nodulizer of bed die cools off the back that solidifies, at first descends by hydraulic cylinder drive crane, makes bed die and last mould cover separation, and then the piston rod of upset pneumatic cylinder retracts back to the bed die that the messenger articulated on the crane takes place the slope, thereby the staff of being convenient for will water the ingot and take out from the bed die.

The utility model discloses further set up to: the upper die cover is located at a position connected with the exhaust pipe and is provided with a closed groove, the closed groove is fixedly connected with a spring on the side wall parallel to the axis of the pipe orifice of the exhaust pipe, one end of the spring, far away from the side wall of the closed groove, is fixedly connected with a closed baffle, the side wall of the closed groove, provided with the spring, is embedded with an electromagnet, and when the spring is in a natural state, the baffle closes the pipe orifice of the exhaust pipe.

Through adopting above-mentioned technical scheme, when vacuum pump during operation, the electro-magnet attracts the closure baffle to make the mouth of pipe separation of closure baffle and exhaust tube, thereby be convenient for the vacuum pump forms the negative pressure in the bed die, when vacuum pump stop work, the electro-magnet stop work seals the mouth of pipe of baffle closure exhaust tube under the effect of spring, thereby the nodulizer that has reduced the molten condition is inhaled the exhaust tube under the effect of the interior remaining negative pressure of exhaust tube, causes the possibility of trouble such as exhaust tube jam.

The utility model discloses further set up to: and sealing elements are arranged on the circumferential side walls of the upper die cover and the lower die.

Through adopting above-mentioned technical scheme, when mould and last log raft cover conflict down, through the holistic leakproofness of sealing member improvement device, when producing the negative pressure in the further bed die of being convenient for, reduce the air admission bed die to the nodulizer degree of oxidizing has been reduced.

The utility model discloses further set up to: the sealing piece comprises a sealing sleeve and a sealing gasket, the sealing sleeve is fixedly connected to the circumferential side wall of the upper die cover, and the sealing sleeve is embedded into the circumferential outer side wall of the lower die.

Through adopting above-mentioned technical scheme, through the cooperation of seal cover and sealed pad, further promoted sealed effect, further reduced the nodulizer and oxidized possibility.

The utility model discloses further set up to: the sealing member is made of glass, and the surfaces matched with each other are frosted surfaces.

Through adopting above-mentioned technical scheme, through setting up sealed pad and seal cover, when lower mould was contradicted with last mould cover, seal cover and sealed the also synchronous conflict of filling up, have realized the sealed to the device.

The utility model discloses further set up to: the sealing member is made of ground glass.

Through adopting above-mentioned technical scheme, because have good gas tightness when conflicting between frosted glass's the frosting, and glass itself has the melting point higher, so the sealing member of making by the frosted glass material can keep the gas tightness under the operational environment of high temperature, and then has promoted the stability of device work.

The utility model discloses further set up to: the filling box is funnel-shaped.

By adopting the technical scheme, the filling box is arranged to be funnel-shaped, so that after the nodulizer in a molten state enters the filling box, the nodulizer is discharged by bubbles in the pouring process, and meanwhile, when the nodulizer is injected into a pouring cavity formed by the lower die and the upper die cover, the falling speed of the top of the liquid level is changed uniformly, new bubbles are not easy to wrap and enter the lower die, so that the probability of contact between the nodulizer and air in the die is further reduced, and the product quality is improved.

The utility model discloses further set up to: and a heating wire is embedded in the inner side wall of the filling box.

By adopting the technical scheme, the heating wire is arranged, so that the cooling speed of the nodulizer in the filling box is slowed down, the condition that the nodulizer is exposed in the air and starts to be cooled is reduced, meanwhile, the liquidity of nodulizer liquid is kept, and the possibility of blocking a filling hole caused by cooling solidification is reduced.

To sum up, the utility model discloses a beneficial technological effect does:

1. negative pressure is generated in a pouring cavity formed between the lower die and the upper die cover, so that residual air in the die before pouring is reduced, contact with air in the cooling and solidification process of a nodulizer is reduced, and the product quality is improved;

2. the lower die is hinged with the lifting frame, and the angle of the lower die is driven by the hinging of the turnover hydraulic cylinder and the lower die, so that the lower die is obliquely arranged towards one side during unloading, a worker can conveniently take out a solidified nodulizer casting ingot, and the convenience of the device is improved;

3. through the sealing member who sets up the ground glass material, promoted the leakproofness between last mould cover and the bed die.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the device according to the embodiment.

Fig. 2 is a sectional view of the present embodiment for showing the internal structure of the device.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

Fig. 5 is a partially enlarged schematic view of a portion C in fig. 2.

In the figure, 1, a base; 11. a lifting platform; 12. a lifting frame; 121. a lower die; 122. turning over the hydraulic cylinder; 13. a lifting hydraulic cylinder; 2. a connecting frame; 3. putting a mold cover; 31. filling a box; 32. connecting blocks; 321. a cavity; 322. a cylinder; 323. a partition plate; 33. filling holes; 34. an air exhaust pipe; 341. a vacuum pump; 35. closing the groove; 351. a spring; 352. a closing baffle; 353. an electromagnet; 4. a seal member; 41. sealing sleeves; 42. a gasket; 5. a heating wire.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a negative pressure formula nodulizer casting ingot mould device, including base 1, fixedly connected with link 2 on the base 1, link 2 perpendicular to base 1 sets up and top fixedly connected with is on a parallel with the upper die cover 3 that the base 1 upside set up. Fixedly connected with elevating platform 11 on the base 1, there is crane 12 along vertical direction sliding connection on the elevating platform 11, a plurality of hydraulic cylinder 13 of fixedly connected with on the base station, the piston rod of lift hydraulic stem vertically upwards extend and respectively with crane 12's bottom fixed connection. The top of crane 12 articulates there is the bed die 121, and the bottom of bed die 121 is equipped with upset pneumatic cylinder 122, and upset pneumatic cylinder 122 is articulated with crane 12, and the piston rod of upset pneumatic cylinder 122 is articulated with the bottom of bed die 121.

Referring to fig. 2 and 3, a connecting block 32 is fixedly connected to the top end of the upper mold cover 3, a funnel-shaped filling box 31 is fixedly connected to the top end of the connecting block 32, a filling hole 33 is formed in the bottom end of the filling box 31, and the filling hole 33 penetrates through the connecting block 32 and the upper mold cover 3. A cavity 321 is formed in the connecting block 32, an air cylinder 322 is fixedly connected to the side wall of the cavity 321, a piston rod of the air cylinder 322 faces the filling hole 33 and is perpendicular to the axis of the filling hole 33, a partition 323 perpendicular to the axis of the filling hole 33 is fixedly connected to the front end of the piston rod of the air cylinder 322, and the partition 323 penetrates into the filling hole 33 and closes the filling hole 33.

Referring to fig. 2 and 4, an air pipe is fixedly connected to the upper mold cover 3, a vacuum pump 341 is arranged at one end of the air pipe far away from the upper mold cover 3, a closed groove 35 is formed in the position, located at the pipe opening of the exhaust pipe 34, inside the upper mold cover 3, an electromagnet 353 is embedded in the side wall of the closed groove 35 parallel to the axis of the pipe opening of the exhaust pipe 34, a plurality of springs 351 are fixedly connected to two sides of the electromagnet 353, one ends, far away from the side wall, of the springs 351 are jointly connected with a closed baffle 352, and the cross section of the closed baffle 352 is matched with the cross. When the vacuum pump 341 works, the electromagnet 353 synchronously works to attract the closed baffle 352, so that the closed baffle 352 is far away from the nozzle of the exhaust pipe 34; when the vacuum pump 341 stops working, the electromagnet 353 stops working synchronously, and under the action of the spring 351, the sealing baffle 352 is pushed out to seal the nozzle of the exhaust pipe 34, so that the possibility that the exhaust pipe 34 is blocked due to the fact that the nodulizer is sucked into the exhaust pipe 34 under the action of negative pressure in the exhaust pipe 34 in the nodulizer filling process is reduced.

Referring to fig. 1 and 5, all be equipped with sealing member 4 on last mold cover 3 and the lower mould 121, sealing member 4 includes seal cover 41 of fixed connection on last mold cover 3 circumference lateral wall and inlays the sealed pad 42 of establishing on lower mould 121 circumference lateral wall, sealing member 4 and seal cover 41 are high temperature resistant glass material, go up mold cover 3 and lower mould 121 and support when tight, seal cover 41 is located the outside of sealed pad 42 and wraps sealed pad 42, all do the dull polish processing on the relative lateral wall of seal cover 41 and sealed pad 42, thereby the gas tightness when conflicting each other through dull polish glass seals the device.

Referring to fig. 2 and 3, a plurality of heating wires 5 are embedded in the side wall of the filling box 31, so that the molten nodulizer in the filling box 31 is continuously heated, the cooling speed of the nodulizer in the filling box 31 is reduced, and the condition that the nodulizer is exposed to air and starts to cool is reduced. Meanwhile, the heating energy keeps the liquidity of the nodulizer liquid, and the possibility of blockage of the filling hole 33 caused by cooling solidification is reduced.

The implementation principle of the embodiment is as follows: in the actual operation process, a worker firstly operates the turning hydraulic cylinder 122 to keep the lower die 121 and the upper die cover 3 horizontal, and then raises the lower die 121 and abuts against the upper die through the lifting hydraulic cylinder 13. The vacuum pump 341 is activated to evacuate the casting cavity formed between the upper mold lid 3 and the lower mold base and create a negative pressure or vacuum. Then the worker operates the melting furnace or other conveying device to pour the nodulizing agent in the molten state into the filling box 31, and the heating wire 5 in the filling box 31 continuously heats and keeps the temperature of the nodulizing agent in the molten state. Then, the operation of the electromagnet 353 and the vacuum pump 341 is simultaneously stopped, and the piston rod of the cylinder 322 is operated to retract, so that the partition 323 is separated from the filling hole 33, thereby making the spheroidizing agent in the filling hole 33 enter the lower mold 121.

After the nodulizer in the lower mold 121 is cooled and solidified, a worker firstly operates the lifting hydraulic cylinder 13 to separate the upper mold cover 3 from the lower mold 121, and then operates the overturning cylinder 322 to incline the lower mold 121, so that a poured ingot poured in the lower mold 121 can be conveniently taken out.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a negative pressure formula nodulizer casting ingot mould device which characterized in that: the automatic filling machine comprises a base (1), a connecting frame (2) is fixedly connected to the base (1), an upper mold cover (3) is fixedly connected to the top end of the connecting frame (2), a lifting table (11) is fixedly connected to the base (1), a lifting frame (12) is slidably connected to the lifting table (11) along the vertical direction, a plurality of lifting hydraulic cylinders (13) are fixedly connected to the base (1), piston rods of the lifting hydraulic cylinders (13) extend upwards and are fixedly connected with the lifting frame (12), a lower mold (121) is arranged on the lifting frame (12), a filling box (31) is fixedly connected to the upper side of the upper mold cover (3), a connecting block (32) is fixedly connected to the bottom of the filling box (31), filling holes (33) are formed in the connecting block (32), and a cavity (321) is formed in one side, located in the filling holes (33), of the connecting block (32), the cavity (321) is fixedly connected with an air cylinder (322), a piston rod of the air cylinder (322) is perpendicular to the axial direction of the filling hole (33), a partition plate (323) is fixedly connected to the piston rod of the air cylinder (322), the partition plate (323) penetrates into the filling hole (33) from the side wall of the filling hole (33) and seals the filling hole (33), the filling hole (33) penetrates through the upper mold cover (3), a plurality of suction pipes (34) are fixedly connected to the upper side of the upper mold cover (3), and a vacuum pump (341) is arranged at one end, far away from the upper mold cover (3), of each suction pipe (34).

2. The negative-pressure nodulizer casting ingot mold device according to claim 1, wherein: articulated on crane (12) have upset pneumatic cylinder (122), just the top and the bed die (121) of crane (12) are articulated, upset pneumatic cylinder (122) are located bed die (121) and keep away from the below of crane (12) and bed die (121) hinged end one side, just the piston rod of upset pneumatic cylinder (122) is articulated with the bottom of bed die (121).

3. The negative-pressure nodulizer casting ingot mold device according to claim 2, wherein: go up mould lid (3) and be located the position of being connected with exhaust tube (34) and seted up closed groove (35), fixedly connected with spring (351) on the parallel one side lateral wall of mouth of pipe axis of closed groove (35) and exhaust tube (34), one end fixedly connected with of closed groove (35) lateral wall is kept away from in spring (351) seals baffle (352), it is equipped with electro-magnet (353) to inlay on the lateral wall that closed groove (35) were equipped with spring (351), works as the mouth of pipe of baffle seal exhaust tube (34) when spring (351) is in natural state.

4. The negative-pressure nodulizer casting ingot mold device according to claim 3, wherein: and sealing elements (4) are arranged on the circumferential side walls of the upper die cover (3) and the lower die (121).

5. The negative-pressure nodulizer casting ingot mold device according to claim 4, wherein: the sealing element (4) comprises a sealing sleeve (41) and a sealing gasket (42), the sealing sleeve (41) is fixedly connected to the circumferential side wall of the upper mold cover (3), and the sealing sleeve (41) is embedded in the circumferential outer side wall of the lower mold (121).

6. The negative-pressure nodulizer casting ingot mold device according to claim 5, wherein: the sealing element (4) is made of glass, and the surfaces matched with each other are frosted surfaces.

7. The negative-pressure nodulizer casting ingot mold device according to claim 1, wherein: the filling box (31) is funnel-shaped.

8. The negative-pressure nodulizer casting ingot mold device according to claim 7, wherein: and a heating wire (5) is embedded in the inner side wall of the filling box (31).