KR100572583B1 - Goods making process and device of vertical vacuum squeeze casting machine - Google Patents

Abstract

The present invention relates to a method and apparatus for forming a product of a vertical vacuum squeeze casting machine of a casting method in which alloy metals such as aluminum are melted, press-molded appropriately in a pair of molds, cooled to solidify, and detached from the molds.

By dissolving the metal in the vacuum tank and injecting the molten metal dissolved in the vacuum tank into the vacuum mold, the product can be molded in the air and the blocking state to obtain a high quality cast product with tight structure, thin thickness and strong strength. Its purpose is to help.

Vertical vacuum squeeze casting machine, mold, vacuum tank, vacuum pump.

Description

Product forming method of vertical vacuum squeeze casting machine and apparatus therefor {GOODS MAKING PROCESS AND DEVICE OF VERTICAL VACUUM SQUEEZE CASTING MACHINE}

1 is a perspective view of the present invention

2 is a partial perspective view of the present invention

Figure 3 is a cross-sectional view of the present invention

Figure 4 is a cross-sectional view of the vacuum tank unit of the present invention

5 is a cross-sectional view of the operation of the vacuum tank of the present invention

Figure 6 is a cross-sectional view of the operation of the present invention

Figure 7 is a cross-sectional view of the operation of the present invention

Figure 8 is a cross-sectional view of the operation of the present invention

Explanation of symbols for main parts of the drawings

1: support plate

1 ': support block

2: lower support plate

3: upper support plate

4: support rod

5: mold fixing plate

501: air outlet

6: fixed mold

6A: molten metal inlet

601: air outlet

7: mold fixing plate

8: movable mold

9: movable platen

10: cylinder

10A: Piston Rod

11: cylinder

11A: Piston Rod

12: support plate

13: product lippin

14: Chamber

15: cylinder

15A: Plunger

16: molten metal injection pipe

16A: entrance

17: support plate

18: support rod

19: cylinder

19A: Plunger

20: vacuum tank

20A: molten metal outlet

20B: air discharge pipe

21: Material Information Board

22: cylinder

22A: Piston Rod

23: plate valve

24: housing

25: hollow shaft

26: molten crucible

27: heating wire

28: pinion

29: cylinder

29A: rack

30: valve

30A: Material input hole

31: valve

31A: Material input hole

32 connector

32A: air exhaust hole

33: plate valve

33A: Hole

34: plate valve

35 cylinder

35A: Piston Rod

36: cylinder

36A: Piston Rod

37: support plate

38: cylinder

38A: Plunger

39: Conveyor

40: casting material

A: Vacuum pump

The present invention relates to a method and apparatus for forming a product of a vertical vacuum squeeze casting machine of a casting method in which alloy metals such as aluminum are melted, press-molded appropriately in a pair of molds, cooled to solidify, and detached from the molds.

More specifically, the molten metal in the vacuum tank is melted and the molten metal dissolved in the vacuum tank is injected into the vacuum mold so that the product can be molded under the air and the blocking state. We are able to get wheel cast product of WHEEL.

Conventional vertical squeeze casting machine dissolves the metal in the air, so the loss of material during the melting and the deterioration of the composition of the alloying material are severe. Especially, the alloy metal, which is highly oxidized in the air, is inert gas (CO₂) to prevent contact with the air. ) And inert gas pollutes the air severely, and also adversely affects the human body. As a result, it is impossible to produce products with reduced production rate, increased defective rate, higher cost, and tight tissues. The problem is that thin, light and strong products cannot be obtained.

In order to solve the problems described above, the present invention provides a reasonably connected vacuum tank and a mold apparatus for melting metal to obtain a high quality product in a clean working environment without air pollution. To the inside of the vacuum tank 20 through the valves 30 and 31 to inject the molten metal melted and dissolved in a vacuum state through the molten crucible 26 through the molten metal outlet 20A of the vacuum tank 20. Product forming method of vertical vacuum squeeze casting machine which presses molten metal into mold under vacuum state by plunger 19A, 15A installed in the inclined and vertical direction by injecting into pipe 16, and the same The object is to provide a device.

Hereinafter, the present invention will be described in detail.

1 is an overall perspective view of the present invention;

2 is a perspective view of main parts of the present invention;

3 is a cross-sectional view of the present invention.

4 is a cross-sectional view of the vacuum tank portion of the present invention;

A pair of closed molds (6), movable molds (8), chambers (14), molten metal inlets (6A), and molten metal inlet tubes (16) are discharged to the outside to bring them into a rapid vacuum state, and then the vacuum tank (20). It is possible to provide a molding method in which the casting material 40 is injected into the molten crucible 26 of the molten metal, and the molten molten metal in the vacuum state is injected into the chamber 14 of the stationary mold 6 and pressurized to produce the vacuum in the vacuum state. The device is provided with a lower support plate (2) and an upper support plate (3) by a support rod (4) on the lower and upper portion of the backing plate (1), the lower support plate (2) fixed mold plate (5) and fixed mold (6) to the piston plate (11A) of the cylinder 11 by fixing the piston rod (10A) and the support plate 12 of the cylinder (10) fixed to the cylinder 11 and the upper support plate to the movable pressure plate (9). The product release pin 13 is fixed, and the mold fixing plate 7 is fixed to the support plate 12, and the movable mold 8 is fixed to the mold fixing plate 7 to release the product release pin 13. In this case, the fixed mold 6 and the mold fixing plate 5 are provided with air discharge holes 601 and 501 so as to be connected to the vacuum pump A and the chamber 14 at the lower portion of the fixed mold 6. To form the inside of the chamber 14 to move the plunger 15A of the cylinder 15 up and down, and to the molten metal inlet 6A formed in the stationary mold 6; ) And a support plate (17) on which the cylinder (19) is fixed to the support block (1 ') with a support rod (18) to move the plunger (19A) of the cylinder (19) back and forth to melt injection pipe (16). It is possible to move the molten metal into the chamber 14 and the inlet 16A of the molten metal injection pipe 16 coincides with the molten metal outlet 20A of the vacuum tank 20 so that the piston rod 22A of the cylinder 22 can be moved. The hollow shaft 25 is freely installed in the housing 24 fixed to the vacuum tank 20 so as to be opened and closed by a plate valve 23 fixed to the The melted crucible 26 and the pinion 28 wound around the heating wire 27 are fixed to the end of the shaft 25 so that the pinion 28 fits with the rack 29A of the cylinder 29 to form the hollow shaft 25. A pair of valves 30 and 31, which drilled the material injection holes 30A and 31A, are connected to the outside of the material guide plate 21 fixed to the inside of the vacuum tank 20 by a connecting pipe 32. And the air discharge pipes 20B and 32A of the vacuum tank 20 and the connecting pipe 32 are connected to the vacuum pump A, and the plate valve 33 having a hole 33A formed therein. The plate 31 is inserted into the valve 31 so as to be moved up and down by the piston rods 35A and 36A of the cylinders 35 and 36, and the support plate 37 fixed to the valve 30 is provided. The cylinder 38 is fixed so that the casting material 40 moved by the conveyor 39 can be moved to the molten crucible 26 in the vacuum tank 20 by the plunger 38A of the cylinder 38. Characterized by will be.

In the present invention, the movable mold 8 is brought into close contact with the stationary mold 6, and when the molded product is molded, the movable mold plate 9 fixed to the piston rod 10A of the cylinder 10 is lowered to move the movable mold 8. ) In close contact with the fixed mold (6) and operating the vacuum pump (A) connected to the air outlet (501) to discharge the chamber 14, the melt inlet (6A) and the melt inlet tube (16) and the air in the mold After the vacuum state, the material injection hole 31A of the valve 31 is closed by the plate valve 34 as shown in FIG. 4, and the plate valve 33 of the valve 30 is opened to open the casting material 40 on the conveyor 39. ) Is pushed into the plunger 38A of the cylinder 38 and placed in the connecting pipe 32. Then, the plunger 38A is reversed to close the material injection hole 30A of the valve 30 with the plate valve 33. The hole 33A is sealed by inserting the plunger 38A of the cylinder 38 into the hole 33A of the plate valve 33. In this state, the vacuum pump (A) is operated to discharge the air to the outside through the air discharge pipes 20B and 32A, and the inside of the vacuum tank 20 and the connection pipe 32 is brought to a vacuum lower than atmospheric pressure, and then the valve ( The plate valve 34 of 31 is raised as shown in FIG. 5 to open the material injection hole 31A, and the casting material 40 in the connecting pipe 32 is pushed into the plunger 38A of the cylinder 38 to form a vacuum tank ( 20) is introduced into the molten crucible 26 and melted. At this time, a plurality of casting materials 40 are placed on the material guide plate 21 and preheated so that the molten crucible 26 melted by the heating wire 27 is vacuum tank ( The valve 20 installed at the molten metal outlet 20A is opened to open the molten metal outlet 20A, and the pinion 28 and the hollow shaft 25 are rotated by the rack 29A of the cylinder 29 to melt the molten metal. The molten metal of the crucible 26 is poured into the chamber 14 through the molten metal outlet 20A, the molten metal inlet tube 16, and the molten metal inlet 6A as shown in FIG. 6, and then the vacuum tank 20 is poured. 20A of the molten metal outlet 20) is closed by the plate valve 23, and then the plunger 19A of the cylinder 19 is moved to transfer the residual molten metal of the molten metal injection pipe 16 and the molten metal inlet 6A to the chamber 14. After moving neatly, the molten metal inlet 6A is kept closed with the plunger 19A and the plunger 15A of the cylinder 15 is raised to melt the chamber 14. Also it was introduced into the fixed die 6 and the movable mold 8, such as 7 are After molding the products desorbed as shown in FIG.

The present invention is to melt the metal in the vacuum tank to form a product by a vacuum mold, using a new and a variety of new material alloy metal thin, lightweight, yet tightly structured and high strength high quality products widely There is an effect that can be provided.

Claims (2)

The pair of stationary molds (6), movable molds (8), chambers (14), and molten metal inlets (6A) and molten metal inlet tubes (16) are discharged and evacuated to form a vacuum in the vacuum tank (20). Vertical vacuum squeeze casting, characterized in that the casting material 40 is injected into the molten crucible 26 and the molten metal melted in a vacuum state is injected into the chamber 14 and pressurized toward the stationary mold 6 to be molded in a vacuum state. Forming method of the product. The lower support plate 2 and the upper support plate 3 are installed on the lower and upper portions of the support plate 1 by the support rods 4 to fix the fixed mold plate 5 and the fixed mold 6 to the lower support plate 2. The piston rod 10A and the support plate 12 of the cylinder 10 are fixed to the movable platen 9 by the cylinder 11 and the upper support plate, and the product release pin 13 is attached to the piston rod 11A of the cylinder 11. The mold fixing plate 7 is fixed to the support plate 12, the movable mold 8 is fixed to the mold fixing plate 7, and the fixing mold 6 and the mold fixing plate 5 are passed through the product release pin 13. The air discharge holes 601 and 501 are formed at the bottom of the stationary mold 6 to form a chamber 14 at the lower portion of the stationary mold 6 to form a cylinder ( The molten metal inlet pipe 16 is fixed to the molten metal inlet 6A formed in the stationary mold 6, and the cylinder 19 is supported on the support block 1 '. And The fixed support plate 17 is fixed to the support rod 18 to move the plunger 19A of the cylinder 19 back and forth so that the molten metal in the molten metal injection pipe 16 can be moved into the chamber 14. The inlet 16A of the injection tube 16 matches the molten metal outlet 20A of the existing vacuum tank 20 so that it can be opened and closed by a plate valve 23 fixed to the piston rod 22A of the cylinder 22. The hollow shaft 25 is freely installed in the housing 24 fixed to the vacuum tank 20 while the molten crucible 26 and the pinion 28 wound around the heating wire 27 are fixed to the ends of the hollow shaft 25. The pinion 28 is fitted with the rack 29A of the cylinder 29 so that the hollow shaft 25 can be rotated, and a material injection hole is provided on the outside of the material guide plate 21 fixed to the inside of the vacuum tank 20. A pair of valves 30 and 31 drilled through 30A and 31A are connected and fixed with a connecting pipe 32, and an air discharge pipe 2 of the vacuum tank 20 and the connecting pipe 32 is fixed. 0B) 32A is connected to the vacuum pump (A), and the valve 30 is inserted into the valve 30 having a hole 33A, and the valve 31 is inserted into the valve 31 to insert the cylinder 35. Casting material which is moved by the conveyor 39 by fixing the cylinder 38 to the support plate 37 fixed to the valve 30 so that it can be moved up and down by the piston rod 35A (36A) of the (36) A vertical vacuum squeeze casting device, characterized in that 40 can be moved to a molten crucible 26 in a vacuum tank 20 by a plunger 38A of a cylinder 38.

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