Pouring head structure of molten iron pouring machine

Abstract

The utility model provides a pouring head structure of a molten iron pouring machine, which relates to the field of pouring machines and comprises a filter assembly, a pouring head shell and a connecting assembly, the filter assembly is fixed at the upper end of the pouring head shell and comprises a connecting end and a mounting plate, a filter screen is arranged in the mounting plate, and the connecting end is connected with the connecting end. A conical section is connected to the lower end of the pouring head shell, a vertical section is connected to the lower end of the conical section, a movable rod is slidably inserted into the vertical section, meanwhile, a sealing block is connected to the upper end of the movable rod, the connecting assembly is movably connected to the outer side of the vertical section, a spring is arranged on the outer side of the vertical section, and the spring is arranged on the upper side of the connecting assembly. The pouring head solves the problems that a pouring head related to an existing pouring machine is lack of moving collision protection and is lack of filtering slag in metal stock solution in the pumping process.

Description

Technical Field

[0001] The utility model relates to the technical field of pouring machines, in particular to a pouring head structure of a molten iron pouring machine. Background Art

[0002] Casting is a metal heat processing technology that humans mastered relatively early. It is a method of pouring liquid metal into a casting cavity that adapts to the shape of the part, and then waiting for it to cool and solidify to obtain a part or blank. The cast metals include copper, iron, aluminum, tin and lead. The materials of ordinary casting molds are raw sand, clay, water glass, resin and other auxiliary materials. Special casting molds include investment casting, metal casting and ceramic casting. A pouring machine is required in the casting process. After searching, the prior art (publication number: CN213729293U) records "a stable and efficient pouring machine for casting, comprising a base, a furnace fixedly mounted on the left side of the top of the base, a control panel provided on the front of the furnace, a hopper connected to the top of the furnace, a pump fixedly mounted on the top of the base, the pump inlet connected to the furnace via a pipe, and the pump outlet connected to a metal hose via a pipe, a first electric telescopic rod fixedly mounted on the right side of the top of the base, and a pipe clamp fixedly mounted on the top of the first electric telescopic rod. The utility model is provided with a base, a furnace, a control panel, a pump, a metal hose, a first electric telescopic rod, a pouring head, a metal pipe, a pipe clamp, a hopper, a reserved hole, a second electric telescopic rod, a stabilizing plate, and universal wheels, thereby solving the problems of existing pouring machines being difficult to move, the poor stability of pouring machines equipped with rollers, and having only one pouring port, resulting in low working efficiency."

[0003] Although the pouring machine in the prior art has improved working efficiency through the double pouring head, it still has some shortcomings: when the pouring head involved in the existing pouring machine moves downward to the casting mold, there may be improper operation causing the pouring head to collide, and since the pouring head lacks protection, it is easy to cause damage to the pouring head. Secondly, there is a lack of a detachable filtering structure inside the pouring head, which makes it easy for slag to be mixed in the molten metal liquid during the pumping process of the pump, resulting in reduced pouring quality. Utility Model Content

[0004] In order to overcome the defects of the existing technology, a pouring head structure of a molten iron pouring machine is provided to solve the problems that the pouring head involved in the existing pouring machine lacks movement collision protection and lacks filtration of slag in the metal raw liquid during the pumping process.

[0005] In order to achieve the above-mentioned purpose, a pouring head structure of a molten iron pouring machine is provided, comprising: a filter assembly, a pouring head shell and a connecting assembly, wherein the filter assembly is fixed to the upper end of the pouring head shell, and the filter assembly comprises a connecting end and a mounting plate, and a filter screen is provided inside the mounting plate, the lower end of the pouring head shell is connected to a conical section, and the lower end of the conical section is connected to a vertical section, and a movable rod is slidably inserted inside the vertical section, and the upper end of the movable rod is connected to a sealing block, the connecting assembly is movably connected to the outside of the vertical section, and a spring is provided on the outside of the vertical section, and the spring is provided on the upper side of the connecting assembly.

[0006] Furthermore, through holes are provided inside the connecting end and the mounting plate, and the mounting plate is fixed to the upper end of the casting head shell by bolts.

[0007] Furthermore, the filter screen is configured as a mesh structure made of silicon carbide, and the filter screen is inserted into a cavity opened inside the casting head shell.

[0008] Furthermore, the cavities opened inside the conical section and the vertical section are communicated with the inner cavity of the casting head shell, and a sealed inner wall is provided on the inner side of the vertical section, and an expansion cavity is provided on the lower side of the sealed inner wall.

[0009] Furthermore, the lower end of the vertical section is connected to a guide section, and a flow gap is provided on the inner side of the guide section.

[0010] Furthermore, the upper end of the sealing block is provided with an arc surface, and the sealing block is hung on the inner side of the sealing inner wall, and the sealing block is set to a structure that is wide at the top and narrow at the bottom.

[0011] Furthermore, the connection assembly includes a slip ring, and the slip ring is slidably connected to the outside of the vertical section, and the lower side of the outer edge of the slip ring is connected to the vertical rod, and the lower end of the vertical rod is connected to the inclined rod.

[0012] Furthermore, the lower end of the movable rod extends outside the vertical section, and the lower end of the inclined rod is fixed to the outer wall of the movable rod.

[0013] The beneficial effects of the present invention are:

[0014] 1. During use, when the pouring head is moved, through the connecting assembly, the movable rod and the spring, when the lower end of the movable rod contacts the inner wall of the pouring mold cavity, it continues to move downward, and the movable rod can be moved upward to push the sealing block, thereby releasing the space inside the sealed inner wall, and the upper space of the vertical section is larger than the outer diameter of the sealing block, so that the internal metal liquid flows downward, and then the metal liquid is guided to the outer wall of the movable rod through the guide section, and then flows downward along the outer wall of the movable rod, thereby achieving the pouring effect. At the same time, when the pouring head is moved downward, a buffering effect is obtained through the spring, the movable rod and the connecting assembly. At the same time, when the metal liquid slides down along the outer wall of the movable rod and flows into the mold cavity, the speed is relatively slow, thereby reducing the generation of bubbles;

[0015] 2. The filter assembly includes a connecting end, a mounting plate, and a filter screen. During pouring, the pumped metal liquid is filtered by the filter screen, thereby preventing the slag in the metal liquid from flowing downward into the mold cavity, thereby ensuring the pouring quality. At the same time, the mounting plate and bolts facilitate the disassembly of the connecting end and the mounting plate as a whole, and then the filter screen is removed, achieving the effect of easy disassembly and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the present utility model.

[0018] Figure 3 For the embodiment of the utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0019] Figure 4 For the embodiment of the utility model Figure 2 Schematic diagram of the structure at point B in the middle.

[0020] In the figure: 1. Filter assembly; 11. Connecting end; 12. Mounting plate; 13. Filter screen; 2. Casting head housing; 21. Conical section; 22. Vertical section; 221. Sealing inner wall; 222. Diversion section; 223. Flow gap; 224. Expansion chamber; 23. Movable rod; 231. Sealing block; 232. Arc surface; 3. Spring; 4. Connecting assembly; 41. Slip ring; 42. Vertical rod; 43. Tilt rod. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 4 As shown, the utility model provides a pouring head structure of a molten iron pouring machine, comprising: a filter assembly 1, a pouring head shell 2 and a connecting assembly 4, the filter assembly 1 is fixed to the upper end of the pouring head shell 2, and the filter assembly 1 includes a connecting end 11 and a mounting plate 12, and a filter screen 13 is provided inside the mounting plate 12, the lower end of the pouring head shell 2 is connected to a conical section 21, and the lower end of the conical section 21 is connected to a vertical section 22, and a movable rod 23 is slidably inserted inside the vertical section 22, and the upper end of the movable rod 23 is connected to the It is connected to a sealing block 231, and the connecting component 4 is movably connected to the outside of the vertical section 22, and a spring 3 is provided on the outside of the vertical section 22, and the spring 3 is provided on the upper side of the connecting component 4, the connecting component 4 includes a slip ring 41, and the slip ring 41 is slidably connected to the outside of the vertical section 22, and the lower side of the outer edge of the slip ring 41 is connected to a vertical rod 42, and the lower end of the vertical rod 42 is connected to an inclined rod 43, the lower end of the movable rod 23 extends outside the vertical section 22, and the lower end of the inclined rod 43 is fixed to the outer wall of the movable rod 23.

[0022] In this embodiment, the filter assembly 1, the pouring head housing 2 and the connecting assembly 4 constitute the pouring head structure of the molten iron pouring machine involved in this application.

[0023] Specifically, the upper end of the connection end 11 is connected to a metal hose, and the connection end 11 is lifted and lowered by an electric push rod connected to the outer side of the pouring head housing 2 .

[0024] Specifically, the vertical rods 42 and the inclined rods 43 are arranged in a circular shape with equal intervals around the vertical section 22, so that while the vertical sliding and shock absorption are achieved, the lateral movement protection is formed on the outside of the pouring head.

[0025] Specifically, the outer diameter of the conical section 21 is larger than that of the vertical section 22 , and the spring 3 is provided between the vertical section 22 and the conical section 21 , thereby achieving a shock-absorbing protection effect on the connecting assembly 4 .

[0026] like Figure 2 As shown, through holes are provided inside the connecting end 11 and the mounting plate 12, and the mounting plate 12 is fixed to the upper end of the pouring head shell 2 by bolts. The filter screen 13 is a mesh structure made of silicon carbide material, and the filter screen 13 is inserted into the cavity opened inside the pouring head shell 2.

[0027] As a preferred embodiment, by providing a mesh filter 13 with a silicon carbide structure, it is possible to prevent the molten iron from being heated to high temperature and to filter the molten iron.

[0028] like Figure 2 and Figure 4 As shown, the cavities opened inside the conical section 21 and the vertical section 22 are connected to the inner cavity of the pouring head shell 2, and a sealing inner wall 221 is provided on the inner side of the vertical section 22, and an expansion cavity 224 is provided on the lower side of the sealing inner wall 221. The lower end of the vertical section 22 is connected to the guide section 222, and a flow gap 223 is provided on the inner side of the guide section 222. An arc surface 232 is provided on the upper end of the sealing block 231, and the sealing block 231 is hung on the inner side of the sealing inner wall 221, and the sealing block 231 is set to a structure with a wide top and a narrow bottom.

[0029] Specifically, the sealing inner wall 221 and the inner wall of the expansion cavity 224 are integrally configured as a waist-shaped cavity structure, and the sealing block 231 is located on the upper side of the waist-shaped cavity, so that under the action of the spring 3, the sealing block 231 automatically seals the waist-shaped cavity.

[0030] Specifically, the guide section 222 is configured as a tapered tube structure that is wide at the top and narrow at the bottom, so that the descending molten metal is pressed against the surface of the movable rod 23 and guided downward, thereby increasing the smoothness of the pouring of the molten metal and reducing the probability of generating bubbles.

[0031] During use, when the pouring head is moved, the metal liquid is first filtered by the filtering assembly, and through the connecting assembly, movable rod and spring, when the lower end of the movable rod contacts the inner wall of the pouring mold cavity, it continues to move downward, and the movable rod can be moved upward to push the sealing block, thereby releasing the space inside the sealed inner wall, and the upper space of the vertical section is larger than the outer diameter of the sealing block, so that the internal metal liquid flows downward, and then the metal liquid is guided to the outer wall of the movable rod through the guide section, and then flows downward along the outer wall of the movable rod, thereby achieving the pouring effect, and at the same time, a buffering effect is obtained through the spring, movable rod and connecting assembly when the pouring head is moved downward, and the metal liquid sliding down along the outer wall of the movable rod when flowing into the mold cavity has a relatively slow speed, which reduces the generation of bubbles.

[0032] The pouring head structure of the molten iron pouring machine of the utility model can effectively solve the problems of the existing pouring machines involving the lack of mobile collision protection of the pouring head and the lack of filtration of slag in the metal stock during the pumping process. It achieves the improvement of the mobile collision protection effect of the pouring head on the basis of the existing pouring head structure technology of the molten iron pouring machine, and improves the flow smoothness of the metal stock during the pouring process, and at the same time has the effect of filtering the metal stock.

Claims

1. A pouring head structure of a molten iron pouring machine, comprising: A filter assembly (1), a pouring head shell (2) and a connecting assembly (4), characterized in that: the filter assembly (1) is fixed to the upper end of the pouring head shell (2), and the filter assembly (1) includes a connecting end (11) and a mounting plate (12), and a filter screen (13) is provided inside the mounting plate (12), the lower end of the pouring head shell (2) is connected to a conical section (21), and the lower end of the conical section (21) is connected to a vertical section (22), and a movable rod (23) is slidably inserted inside the vertical section (22), and the upper end of the movable rod (23) is connected to a sealing block (231), the connecting assembly (4) is movably connected to the outside of the vertical section (22), and a spring (3) is provided outside the vertical section (22), and the spring (3) is provided on the upper side of the connecting assembly (4).

2. The pouring head structure of a molten iron pouring machine according to claim 1, characterized in that: The connection end (11) and the mounting plate (12) are both provided with through holes, and the mounting plate (12) is fixed to the upper end of the pouring head housing (2) by means of bolts.

3. The pouring head structure of a molten iron pouring machine according to claim 1, characterized in that: The filter screen (13) is a mesh structure made of silicon carbide, and the filter screen (13) is inserted into a cavity opened inside the casting head shell (2).

4. The pouring head structure of a molten iron pouring machine according to claim 1, characterized in that: The cavities formed inside the conical section (21) and the vertical section (22) are connected to the inner cavity of the pouring head shell (2), and a sealed inner wall (221) is provided on the inner side of the vertical section (22), and an expansion cavity (224) is provided on the lower side of the sealed inner wall (221).

5. The pouring head structure of a molten iron pouring machine according to claim 1, characterized in that: The lower end of the vertical section (22) is connected to a flow guide section (222), and a flow gap (223) is provided on the inner side of the flow guide section (222).

6. The pouring head structure of a molten iron pouring machine according to claim 1, characterized in that: The upper end of the sealing block (231) is provided with an arcuate surface (232), and the sealing block (231) is hung on the inner side of the sealing inner wall (221), and the sealing block (231) is configured as a structure that is wide at the top and narrow at the bottom.

7. The pouring head structure of a molten iron pouring machine according to claim 1, characterized in that: The connecting assembly (4) includes a slip ring (41), and the slip ring (41) is slidably connected to the outside of the vertical section (22), and the lower side of the outer edge of the slip ring (41) is connected to a vertical rod (42), and the lower end of the vertical rod (42) is connected to an inclined rod (43).

8. The pouring head structure of a molten iron pouring machine according to claim 1, characterized in that: The lower end of the movable rod (23) extends outside the vertical section (22), and the lower end of the tilting rod (43) is fixed to the outer wall of the movable rod (23).

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