A discharge port casting structure

Abstract

The utility model relates to foundry technology field, concretely is a kind of discharge port casting structure, including shell, the inside fixed connection of shell has inner tube, and casting is slidably connected on inner tube, and the inside of shell is provided with blanking assembly, and blanking assembly includes slide bar, top cap, sealing element, chain and pulley, and slide bar is slidably connected on shell, and top cap is fixedly connected on slide bar, and sealing element is fixedly connected on top cap, and one end of chain is fixedly connected to the bottom of slide bar, and the other end of chain is fixedly connected to the bottom of casting, and pulley is arranged on the inner wall of shell, and chain is arranged on pulley, and auxiliary assembly is arranged between shell and casting;The utility model can utilize even force to eject discharge port tubular member from casting after making discharge port tubular member, avoid burr when discharge port tubular member is taken out from casting because of and casting inner wall friction.

Description

Technical Field

[0001] This utility model relates to the field of casting processing technology, specifically a discharge port casting structure. Background Technology

[0002] Casting is the process of injecting molten metal or alloy into a mold cavity and then cooling and solidifying it to obtain metal parts or blanks. Its core technology is casting, which is to achieve the manufacturing of complex shapes through the one-time forming of liquid metal.

[0003] For the discharge ports of some fluid processing equipment, which are generally tubular structures, in order to prevent the fluid from adhering to the pipe wall of the discharge port, the discharge port fittings of these equipment are usually made by casting. However, with traditional casting methods, the discharge port fittings produced inevitably experience slight friction with the inner wall of the casting during the removal process. This friction can easily cause burrs to form on the inner and outer walls of the discharge port fitting. Burrs on the outer wall are easy to remove by grinding, but burrs on the inner wall are difficult to remove. At this time, these burrs may adhere to the fluid during subsequent use. The adhered fluid will gradually accumulate and eventually cause blockage of the discharge port. Therefore, a new type of casting structure is needed to manufacture the discharge port fittings. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a discharge port casting structure that can use uniform force to push the discharge port pipe out of the casting after it is made, thus avoiding burrs caused by friction between the discharge port pipe and the inner wall of the casting when it is taken out.

[0005] The technical solution to achieve the purpose of this utility model is as follows: a discharge port casting structure, including an outer shell, an inner cylinder fixedly connected inside the outer shell, a casting slidably connected to the inner cylinder, a feeding assembly inside the outer shell, the feeding assembly including a slide rod, a top cover, a seal, a chain and a pulley, the slide rod being slidably connected to the outer shell, the top cover being fixedly connected to the slide rod, the seal being fixedly connected to the top cover, one end of the chain being fixedly connected to the bottom of the slide rod, the other end of the chain being fixedly connected to the bottom of the casting, the pulley being disposed on the inner wall of the outer shell, the chain being disposed on the pulley, and an auxiliary component being disposed between the outer shell and the casting.

[0006] Preferably, the feeding assembly further includes a spring, one end of which is fixedly connected to the casting, and the other end of which is fixedly connected to the bottom inner wall of the housing.

[0007] Preferably, the auxiliary component includes a fixing rod and a sealing block, wherein the fixing rod is fixedly connected to the bottom inner wall of the housing, and the sealing block is fixedly connected to the fixing rod.

[0008] Preferably, the auxiliary component further includes a bottom hole, which is formed at the bottom of the casting and is adapted to the sealing block.

[0009] Preferably, a water inlet pipe is fixedly connected to the bottom of the outer shell, the water inlet pipe is connected to the inside of the outer shell, and a pipe plug is provided on the water inlet pipe.

[0010] Preferably, the slide bar, chain, and pulley are provided in three sets, and the three sets of slide bars, chains, and pulleys are distributed in a circular array inside the outer casing.

[0011] Compared with the prior art, the significant advantages of this utility model are:

[0012] Firstly, in this invention, when the top cover is moved, it drives the sliding rod to move. The chain connected to the bottom of the sliding rod pulls the casting inside the outer shell. Therefore, when the top cover moves upward, the casting moves downward, and when the top cover moves downward, the casting moves upward. When the top cover is fastened to the outer shell, the sealing element fits perfectly with the top of the casting, forming a cavity with the contour required for making the outlet pipe fitting. At this time, liquefied metal can be poured into the casting through the hole on the top cover to make the outlet pipe fitting. When the liquefied metal is poured into the casting and cooled and solidified, sufficient water can be injected into the outer shell through the water inlet pipe at the bottom of the outer shell. Then, the pipe plug is tightened. The water inside the outer shell is used for heat conduction to cool and reduce the temperature of the casting and the formed outlet pipe fitting inside the casting, further solidifying the outlet pipe fitting.

[0013] Secondly, in this invention, after cooling is complete, the water inside the outer shell heats up, causing an increase in air pressure. At this time, pulling up the top cover moves the casting downwards within the outer shell. Simultaneously, the sealing block moves upwards relative to the casting, allowing the thinner fixing rod to penetrate the bottom hole. Because the water inside the outer shell has already heated up, increasing the air pressure, when the sealing block moves out of the bottom hole, the higher air pressure causes water to flow through the bottom hole into the casting. This water pressure then pushes the forming outlet pipe inside the casting upwards, thus demolding the outlet pipe from the casting. Since water pressure is used to push the outlet pipe upwards... The discharge port fitting is pushed upwards, so the force on the discharge port fitting is uniform. No horizontal force is generated between the discharge port fitting and the inner wall of the casting, so no friction is generated between the discharge port fitting and the inner wall of the casting, thus avoiding the generation of too many burrs. As the top cover continues to rise, the casting will continue to fall. Water inside the shell will also continuously enter the casting from the bottom hole due to the pressure of the casting, thus maintaining the height of the discharge port fitting. Finally, the discharge port fitting stays at the top of the shell. As the casting continues to fall, the demolding of the discharge port fitting is naturally completed. When the top cover moves to the topmost position, the discharge port fitting can be directly removed. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This utility model is based on Figure 3 The image shown illustrates the effect of its use.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Outer shell; 2. Inner cylinder; 3. Casting; 4. Feeding assembly; 41. Slide rod; 42. Top cover; 43. Seal; 44. Chain; 45. Pulley; 46. Spring; 5. Auxiliary assembly; 51. Bottom hole; 52. Fixing rod; 53. Sealing block; 6. Water inlet pipe; 7. Pipe plug. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] This utility model provides an improved discharge port casting structure. The technical solution of this utility model is as follows:

[0023] like Figures 1-4As shown, a discharge port casting structure includes an outer shell 1, an inner cylinder 2 fixedly connected inside the outer shell 1, a casting 3 slidably connected to the inner cylinder 2, and a discharge assembly 4 disposed inside the outer shell 1. The discharge assembly 4 includes a slide rod 41, a top cover 42, a seal 43, a chain 44, and a pulley 45. The slide rod 41 is slidably connected to the outer shell 1, the top cover 42 is fixedly connected to the slide rod 41, the seal 43 is fixedly connected to the top cover 42, one end of the chain 44 is fixedly connected to the bottom of the slide rod 41, and the other end of the chain 44 is fixedly connected to... Attached to the bottom of casting 3, pulley 45 is set on the inner wall of housing 1, and chain 44 is set on pulley 45. Because of the chain 44 and pulley 45, when top cover 42 moves, casting 3 will move in the opposite direction. When top cover 42 is fastened on housing 1, sealing member 43 will fit perfectly against the top of casting 3, forming a complete cavity with casting 3 for making discharge port fittings. The sealing member 43 and top cover 42 are provided with holes for pouring liquid metal. Auxiliary component 5 is provided between housing 1 and casting 3.

[0024] In this utility model, the feeding component 4 also includes a spring 46. One end of the spring 46 is fixedly connected to the casting 3, and the other end of the spring 46 is fixedly connected to the bottom inner wall of the outer shell 1. The elastic force of the spring 46 will cause the casting 3 to be located at the upper end of the outer shell 1 when it is not under force, and it fits exactly with the sealing component 43.

[0025] In this utility model, the auxiliary component 5 includes a fixing rod 52 and a sealing block 53. The fixing rod 52 is fixedly connected to the bottom inner wall of the outer casing 1, and the sealing block 53 is fixedly connected to the fixing rod 52.

[0026] In this utility model, the auxiliary component 5 also includes a bottom hole 51, which is opened at the bottom of the casting 3. The bottom hole 51 is adapted to the sealing block 53. When the casting 3 is at the upper end inside the outer shell 1, the sealing block 53 will be located exactly inside the bottom hole 51 to block the bottom hole 51, so that a complete cavity is formed inside the casting 3. When the casting 3 descends, the sealing block 53 will move upward relative to the bottom hole 51. The smaller diameter fixing rod 52 will then pass through the bottom hole 51. The bottom hole 51 is now in an open state, and the cooling water pre-filled in the outer shell 1 will enter the casting 3 through the bottom hole 51.

[0027] In this utility model, a water inlet pipe 6 is fixedly connected to the bottom of the outer shell 1. The water inlet pipe 6 communicates with the interior of the outer shell 1. A pipe plug 7 is provided on the water inlet pipe 6. The water inlet pipe 6 is used to inject water into the outer shell 1 to cool the casting 3 and the discharge port fittings inside it. After the cooling water is injected, the pipe plug 7 can be sealed tightly. Subsequently, the cooling water will heat up, the temperature inside the outer shell 1 will rise, and the air pressure will increase.

[0028] In this utility model, there are three sets of slide rods 41, chains 44 and pulleys 45, which are arranged in a circular array inside the outer shell 1.

[0029] The specific working method is as follows: When the top cover 42 is moved, the top cover 42 will drive the slide rod 41 to move. The chain 44 connected to the bottom of the slide rod 41 will pull the casting 3 located in the outer shell 1. Therefore, when the top cover 42 moves up, the casting 3 will move down, and when the top cover 42 moves down, the casting 3 will move up. When the top cover 42 is fastened on the outer shell 1, the sealing element 43 will fit exactly with the top of the casting 3, forming a cavity with the casting 3 to form the contour required for making the outlet pipe fitting. At this time, liquefied metal can be poured into the casting 3 through the hole on the top cover 42 to make the outlet pipe fitting. When the liquefied metal is poured into the casting 3 and cooled and formed, sufficient water can be injected into the outer shell 1 through the water inlet pipe 6 at the bottom of the outer shell 1. Then the pipe plug 7 is tightened. The water in the outer shell 1 is used for heat conduction to cool and reduce the temperature of the casting 3 and the formed outlet pipe fitting inside the casting 3, further shaping the outlet pipe fitting.

[0030] After cooling, the water inside the outer casing 1 heats up, causing an increase in air pressure inside the outer casing 1. At this time, the top cover 42 is pulled up, causing the casting 3 to move downwards inside the outer casing 1. Simultaneously, the sealing block 53 moves upwards relative to the casting 3, allowing the thinner fixing rod 52 to pass through the bottom hole 51. Because the water inside the outer casing 1 has heated up beforehand, the increased air pressure inside the outer casing 1 causes the water inside the outer casing 1 to flow into the casting 3 through the bottom hole 51 when the sealing block 53 moves out of the bottom hole 51. This water pressure then pushes the forming outlet pipe inside the casting 3 upwards, thus completing the demolding process between the outlet pipe and the casting 3. Since water pressure is used to... The discharge port fitting is pushed upwards, so the force on the discharge port fitting is uniform. No horizontal force is generated between the discharge port fitting and the inner wall of the casting 3, so no friction is generated between the discharge port fitting and the inner wall of the casting 3, thus avoiding the generation of too many burrs. As the top cover 42 continues to rise, the casting 3 will continue to fall. Water in the outer shell 1 will also continuously enter the casting 3 from the bottom hole 51 due to the pressure of the casting 3, so that the discharge port fitting maintains its height. Finally, the discharge port fitting stays at the top of the outer shell 1. The casting 3 continues to fall, naturally completing the demolding of the discharge port fitting. When the top cover 42 moves to the topmost position, the discharge port fitting can be directly removed.

[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A spout casting structure comprising a housing (1), characterized in that: The inner cylinder (2) is fixedly connected to the inside of the outer shell (1), and the casting (3) is slidably connected to the inner cylinder (2). The material feeding assembly (4) is provided inside the outer shell (1). The material feeding assembly (4) includes a slide rod (41), a top cover (42), a seal (43), a chain (44), and a pulley (45). The slide rod (41) is slidably connected to the outer shell (1), the top cover (42) is fixedly connected to the slide rod (41), the seal (43) is fixedly connected to the top cover (42), one end of the chain (44) is fixedly connected to the bottom of the slide rod (41), and the other end of the chain (44) is fixedly connected to the bottom of the casting (3). The pulley (45) is provided on the inner wall of the outer shell (1), and the chain (44) is provided on the pulley (45). An auxiliary assembly (5) is provided between the outer shell (1) and the casting (3).

2. The discharge port casting structure according to claim 1, characterized in that: The feeding assembly (4) also includes a spring (46), one end of which is fixedly connected to the casting (3), and the other end of which is fixedly connected to the bottom inner wall of the outer shell (1).

3. The discharge port casting structure according to claim 1, characterized in that: The auxiliary component (5) includes a fixing rod (52) and a sealing block (53). The fixing rod (52) is fixedly connected to the bottom inner wall of the outer casing (1), and the sealing block (53) is fixedly connected to the fixing rod (52).

4. The discharge port casting structure according to claim 3, characterized in that: The auxiliary component (5) also includes a bottom hole (51), which is located at the bottom of the casting (3) and is adapted to the sealing block (53).

5. The discharge port casting structure according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to a water inlet pipe (6), which communicates with the interior of the outer shell (1). A pipe plug (7) is provided on the water inlet pipe (6).

6. The discharge port casting structure according to claim 1, characterized in that: The slide bar (41), chain (44) and pulley (45) are provided in three sets, and the three sets of slide bars (41), chain (44) and pulley (45) are arranged in a ring array inside the outer shell (1).

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