Investment casting casting device

Abstract

The utility model relates to the technical field of investment casting, in particular to an investment casting casting device which comprises a mounting cavity and two fixing plates, the two fixing plates are fixedly connected to the two ends of the mounting cavity respectively, two protruding plates are fixedly connected to the mounting cavity, knocking parts are mounted on the protruding plates, and the knocking parts are fixedly connected to the fixing plates. The knocking component comprises a V-shaped plate, a reciprocating screw rod, a square cavity and a cylinder, two first springs are fixedly connected to the protruding plate, a knocking rod is fixedly connected to the end, away from the protruding plate, of each first spring, and the knocking rod is arranged in a channel steel shape. The knocking rod moves upwards and resets under the elastic force of the first spring, at the moment, the knocking rod can collide with the outer wall of the fired mold in the upward moving process, the fired mold can vibrate, the vibrating effect on molten iron in the fired mold is achieved, and the molten iron can be better attached to the inner wall of the fired mold.

Description

Technical Field

[0001] The utility model relates to the technical field of investment casting, in particular to an investment casting device. Background Art

[0002] With the continuous expansion of the application areas of investment casting products and the continuous improvement of investment casting technology, the types of casting products are increasing and their structures are becoming more and more complex. The original status quo of mainly casting small, precise and light castings has gradually changed. Some pump bodies, housings, auto parts, and aerospace hardware products are widely produced using this process.

[0003] In the prior art, after pouring molten iron into the mold, since the interior of the mold is mostly irregular, the molten iron entering the mold will be affected by impurities and other factors, resulting in a lack of fit with the inner wall of the mold or bubbles, resulting in defects in the appearance of the cast product and quality problems. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art. In the prior art, after pouring molten iron into the investment mold, since the interior of the investment mold is mostly irregular, the molten iron entering the investment mold will be affected by impurities and other factors, resulting in a lack of fit with the inner wall of the investment mold or bubbles, resulting in appearance and defects of the cast product, and quality problems. A casting device for investment casting is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An investment casting device comprises a mounting cavity and a fixing plate, wherein two fixing plates are fixedly connected to two ends of the mounting cavity respectively;

[0007] Two convex plates are fixedly connected to the mounting cavity, and a knocking component is installed on the convex plate. The knocking component includes a V-shaped plate, a reciprocating screw, a square cavity, and a cylinder. Two first springs are fixedly connected to the convex plate, and the first spring is fixedly connected to a knocking rod at one end away from the convex plate. The knocking rod is arranged in a channel steel shape, and the cylinder is arranged at the upper end of the mounting cavity. The square cavity is communicated with the cylinder, and the reciprocating screw is rotatably connected to the square cavity. The two V-shaped plates are respectively threadedly connected to the two ends of the reciprocating screw, and fan blades are installed in a ring array on the reciprocating screw.

[0008] Preferably, the knocking component further includes a placement plate, which is fixedly connected in the installation cavity and located on one side of the knocking rod.

[0009] Preferably, two sliding rods are fixedly connected between the two fixed plates, a material discharge cavity is slidably connected between the two sliding rods, and the material discharge cavity is communicated with the cylinder.

[0010] Preferably, a through groove is provided at one end of the feeding cavity, and an L-shaped pressing plate is slidably connected in the through groove.

[0011] Preferably, a plurality of second springs are fixedly connected between one end of the pressing plate and the upper surface of the discharge cavity, and the end of the pressing plate away from the second spring is arranged in an arc shape.

[0012] Preferably, a protective plate is fixedly connected to one side wall of the installation cavity, the knocking rod and the V-shaped plate are both slidably connected to the protective plate, and an opening is formed on one side wall of the installation cavity.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] When the molten iron flows into the investment mold through the circular cavity, it pushes the fan blades and drives the reciprocating screw to rotate. The reciprocating screw can drive the V-shaped plate to move back and forth horizontally. When the V-shaped plate continues to move and no longer squeezes the knocking rod, the knocking rod moves up and resets under the elastic force of the first spring. At this time, the knocking rod can hit the outer wall of the investment mold during the upward movement, causing the investment mold to vibrate, which has a vibrating effect on the molten iron in the investment mold, which is conducive to better fitting the molten iron with the inner wall of the investment mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of the installation cavity of an investment casting device proposed by the present invention;

[0016] Figure 2 This is a front structural diagram of an investment casting device proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the fan blade structure of an investment casting device proposed in the utility model;

[0018] Figure 4 The utility model provides a schematic diagram of a pressure plate structure of an investment casting device.

[0019] In the figure: 1 mounting cavity, 2 convex plate, 3 knocking rod, 4 V-shaped plate, 5 square cavity, 6 pressure plate, 7 slide rod, 8 unloading cavity, 9 fixed plate, 10 reciprocating screw rod, 11 placement plate, 12 first spring, 13 protective plate, 14 cylinder, 15 second spring, 16 fan blade. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] The terms "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not intended to limit the scope of application of the present invention. Changes or adjustments to their relative relationships shall be deemed to be within the scope of application of the present invention without substantially changing the technical content.

[0022] Reference Figures 1-4 , an investment casting device includes a mounting cavity 1 and a fixing plate 9, the two fixing plates 9 are fixedly connected to the two ends of the mounting cavity 1, two sliding rods 7 are fixedly connected between the two fixing plates 9, a feeding cavity 8 is slidably connected between the two sliding rods 7, the feeding cavity 8 is connected to the cylinder 14, one end of the feeding cavity 8 is provided with a through groove, an L-shaped pressure plate 6 is slidably connected in the through groove, one end of the pressure plate 6 is fixedly connected to the upper surface of the feeding cavity 8 with a plurality of second springs 15, the end of the pressure plate 6 away from the second spring 15 is arranged in an arc shape, the pressure plate 6 is pulled upward and the second spring 15 is stretched, at this time the pressure plate 6 is no longer squeezed on the sliding rod 7, and can Push the blanking cavity 8 to slide on the slide bar 7 at will, adjust the position of the blanking cavity 8 until the lower end of the cylinder 14 is aligned with the upper end of the investment mold. After the position of the blanking cavity 8 is adjusted, release the pressure plate 6. The pressure plate 6 moves downward under the tension of the second spring 15 and is squeezed on the slide bar 7, so that the blanking cavity 8 is fixed on the slide bar 7. The outer surface of the slide bar 7 is not smoothly set, and has a moving friction with the pressure plate 6. One side wall of the installation cavity 1 is fixedly connected to the protective plate 13, and the knocking rod 3 and the V-shaped plate 4 are both slidably connected to the protective plate 13. One side wall of the installation cavity 1 is provided with an opening, which makes it convenient to place the investment mold on the placement plate 11 through the opening, and also facilitates the removal of the investment mold.

[0023] Two convex plates 2 are fixedly connected to the mounting cavity 1, and a knocking component is installed on the convex plate 2, which includes a V-shaped plate 4, a reciprocating screw 10, a square cavity 5, and a cylinder 14. Two first springs 12 are fixedly connected to the convex plate 2, and the end of the first spring 12 away from the convex plate 2 is fixedly connected to the knocking rod 3, and the knocking rod 3 is arranged in a channel steel shape. The cylinder 14 is arranged at the upper end of the mounting cavity 1, and the square cavity 5 is connected to the cylinder 14. The reciprocating screw 10 is rotatably connected to the square cavity 5. The outer surface of the connection between the reciprocating screw 10 and the square cavity 5 is smooth, and reciprocating wire patterns are respectively provided at both ends of the reciprocating screw 10. The two V-shaped plates 4 are respectively threadedly connected to the two ends of the reciprocating screw 10. Fan blades 16 are installed in a circular array on the reciprocating screw 10, and multiple fan blades 16 are located in the square cavity 5 and the cylinder 14. The knocking component also includes a placement plate 11, which is fixedly connected to the mounting cavity 1 and is located on one side of the knocking rod 3. The placement plate 11 is used to place the investment mold.

[0024] In the present invention, when in use, the investment mold is first placed on the upper side of the placement plate 11, and one side of the investment mold is on the upper side of the bottom wall of the knocking rod 3. At this time, the opening at the upper end of the investment mold is aligned with the lower end of the cylinder 14, and then the molten iron is poured into the discharge cavity 8. The molten iron in the discharge cavity 8 flows through the cylinder 14 into the investment mold on the lower side to complete the casting.

[0025] When the molten iron in the lower material cavity 8 passes through the cylinder 14, it can push the fan blades 16 and continuously drive the reciprocating screw 10 to rotate. During the rotation of the reciprocating screw 10, the V-shaped plates 4 on both sides respectively move back and forth horizontally on both sides of the square cavity 5. When the V-shaped plate 4 moves, it can squeeze the knocking rod 3 to move down and compress the first spring 12. When the V-shaped plate 4 continues to move and no longer squeezes the knocking rod 3, the knocking rod 3 moves up and resets under the elastic force of the first spring 12. At this time, the knocking rod 3 can hit the outer wall of the investment mold during the upward movement, so that the investment mold can vibrate, which has a vibrating effect on the molten iron in the investment mold, which is conducive to better fitting the molten iron with the inner wall of the investment mold.

[0026] In the present invention, unless otherwise clearly specified or limited, the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An investment casting device, comprising a mounting cavity (1) and a fixing plate (9), characterized in that: The two fixing plates (9) are respectively fixedly connected to the two ends of the installation cavity (1); Two convex plates (2) are fixedly connected to the installation cavity (1), and a knocking component is installed on the convex plate (2), and the knocking component includes a V-shaped plate (4), a reciprocating screw (10), a square cavity (5), and a cylinder (14). Two first springs (12) are fixedly connected to the convex plate (2), and one end of the first spring (12) away from the convex plate (2) is fixedly connected to a knocking rod (3), and the knocking rod (3) is arranged in a channel steel shape. The cylinder (14) is arranged at the upper end of the installation cavity (1), and the square cavity (5) is connected to the cylinder (14). The reciprocating screw (10) is rotatably connected to the square cavity (5), and the two V-shaped plates (4) are respectively threadedly connected to the two ends of the reciprocating screw (10). Fan blades (16) are installed in a ring array on the reciprocating screw (10).

2. An investment casting device according to claim 1, characterized in that The knocking component further includes a placement plate (11), which is fixedly connected in the installation cavity (1) and is located on one side of the knocking rod (3).

3. The investment casting device according to claim 1, characterized in that: Two sliding rods (7) are fixedly connected between the two fixed plates (9), and a material discharge cavity (8) is slidably connected between the two sliding rods (7), and the material discharge cavity (8) is communicated with the cylinder (14).

4. An investment casting device according to claim 3, characterized in that: A through slot is provided at one end of the material discharge cavity (8), and an L-shaped pressing plate (6) is slidably connected in the through slot.

5. The investment casting device according to claim 4, characterized in that: A plurality of second springs (15) are fixedly connected between one end of the pressing plate (6) and the upper surface of the material discharge cavity (8), and one end of the pressing plate (6) away from the second springs (15) is arranged in an arc shape.

6. The investment casting device according to claim 1, characterized in that: One side wall of the installation cavity (1) is fixedly connected to a protective plate (13), the knocking rod (3) and the V-shaped plate (4) are both slidably connected to the protective plate (13), and one side wall of the installation cavity (1) is provided with an opening.

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