Melting cup of die casting machine

Abstract

The utility model relates to a die-casting machine melting cup which comprises an outer cylinder and an inner cylinder which are concentrically arranged, the outer cylinder and the inner cylinder are movably connected, the length of the inner cylinder is larger than that of the outer cylinder, the outer cylinder and the inner cylinder are provided with a guide protruding part and a guide groove respectively, the guide protruding part is matched with the guide groove, and one end of the inner cylinder is provided with a step and connected with the outer cylinder through the step. A fixing part is arranged at the other end of the inner cylinder, the inner cylinder is connected with the outer cylinder through the fixing part, a first feeding hole and a second feeding hole are formed in the side faces of the outer cylinder and the inner cylinder respectively, and the positions of the first feeding hole and the second feeding hole correspond to each other. By arranging the inner cylinder and the outer cylinder, and meanwhile, the length of the inner cylinder is larger than that of the outer cylinder, it can be guaranteed that the melting cup inner core can be integrally replaced, and the service life of the melting cup is guaranteed; the guide convex parts and the guide grooves are arranged on the outer cylinder and the inner cylinder, installation is convenient, the steps and the fixing parts are arranged at the two ends of the inner cylinder respectively, the inner cylinder and the outer cylinder can be tightly connected, loosening is avoided, and the using effect is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of die-casting machine accessories, and in particular to a die-casting machine melting cup. Background Art

[0002] A die-casting machine is a machine used for pressure casting, which includes a hot pressing chamber and a cold pressing chamber. It can be divided into two types according to its structure: vertical and horizontal. During die-casting, the molten metal liquid is poured into the melting cup (barrel) by a spoon, and then the injection piston (hammer) is used to push the metal liquid into the mold at high speed. It is cooled and solidified while maintaining a certain pressure. After the mold is opened, a solid metal casting can be obtained.

[0003] The melting cup acts as a conduit for molten metal to flow from the melting furnace or injection chamber to the mold cavity. Since the melting cup needs to transport molten metal liquid, it is done under extremely high temperature conditions, so there are high requirements for the material properties of the melting cup. At the same time, the melting cup is sealed inside and the heat is concentrated. Long-term high-temperature working environment will reduce the service life of the melting cup component. At the same time, since the feed port of the melting cup is often in contact with the material, it is easily corroded by the molten metal liquid, affecting its service life.

[0004] At present, there are also some melting cup structures with replaceable feed ports. For example, the Chinese patent with authorization announcement number CN206169251U and publication date May 17, 2017 discloses a melting cup with a replaceable feed port, including a melting cup main body and a feed nest; the melting cup main body is provided with a material hole and a mounting hole that are interconnected; the material hole and the mounting hole are arranged in sequence and respectively pass through the opposite ends of the melting cup main body, and a feed port passing through the hole wall is provided on one side of the mounting hole; the feed nest is provided with feed holes passing through the opposite ends; a feed port passing through the hole wall is provided on one side of the feed hole; the feed nest is embedded in and installed in the mounting hole of the melting cup main body, and the feed port of the feed nest overlaps and is aligned with the feed port of the mounting hole of the melting cup main body.

[0005] This application improves the feed port part of the melting cup into a replaceable structure, so that when the feed port part of the melting cup is eroded or damaged by high temperature, only the feed port part of the melting cup needs to be replaced to realize the normal use of the melting cup body, which is conducive to reducing resource waste and reducing replacement costs.

[0006] The inventor believes that only part of the structure of the melting cup is replaced in this application, and during actual use, the inside of the barrel is always in contact with high-temperature molten metal. In addition to the feed port, other parts are also prone to damage and the melting cup also needs to be replaced. At the same time, the feed port and the melting cup in the above application are separate structures. When the high-temperature molten metal passes through the contact surface, it is easy to cause internal stress changes, affecting the service life. Therefore, it is necessary to design a die-casting machine melting cup that can replace the entire interior of the melting cup. Utility Model Content

[0007] The present application provides a die-casting machine melting cup capable of replacing the entire interior of the melting cup.

[0008] The present application provides a die-casting machine melting cup adopting the following technical solution:

[0009] A die-casting machine melting cup includes an outer cylinder and an inner cylinder arranged concentrically, the outer cylinder and the inner cylinder are movably connected and the length of the inner cylinder is greater than the length of the outer cylinder, the outer cylinder and the inner cylinder are respectively provided with a guide protrusion and a guide groove, the guide protrusion and the guide groove match each other, one end of the inner cylinder is provided with a step and is connected to the outer cylinder through the step, the other end of the inner cylinder is provided with a fixing portion and is connected to the outer cylinder through the fixing portion, a first feed hole and a second feed hole are respectively provided on the side surfaces of the outer cylinder and the inner cylinder, the positions of the first feed hole and the second feed hole correspond to each other, and a first cooling channel and a second cooling channel are respectively provided in the outer cylinder and the inner cylinder.

[0010] Preferably, a limiting convex ring is provided at one end of the outer cylinder, the inner diameter of the limiting convex ring is smaller than the inner diameter of the outer cylinder and the limiting convex ring can be connected with the step of the inner cylinder, one end of the inner cylinder extends out of the limiting convex ring, there are multiple fixing parts and the multiple fixing parts are evenly arranged along the circumferential direction of the side surface of the other end of the inner cylinder, a fixing hole is provided on the fixing part, and a hole corresponding to the fixing hole is provided on the outer cylinder.

[0011] Preferably, the length of the inner tube exceeding the outer tube does not exceed 1 cm.

[0012] Preferably, the guide protrusion is a square block provided on the inner side wall of one end of the outer cylinder, and the size of the guide protrusion corresponds to the size of the guide groove.

[0013] Preferably, the guide groove is an L-shaped groove, the longer section of the guide groove is arranged along the axial direction of the inner cylinder and its length is equal to the length of the outer cylinder, and the shorter section of the guide groove is arranged along the circumferential direction of the inner cylinder. When the guide protrusion is connected to the end of the shorter section of the guide groove, the angles of the first feed hole and the second feed hole coincide.

[0014] Preferably, an indicator arrow is provided at one end of the outer cylinder close to the guide protrusion, and the direction of the indicator arrow is opposite to the bending direction of the guide groove.

[0015] Preferably, the first cooling channel and the second cooling channel are both spiral channels, the end of the first cooling channel is located on the end side of the outer tube, and the end of the second cooling channel is located on the end surface of the inner tube.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The present application sets concentric and movably connected inner and outer cylinders, and the length of the inner cylinder is greater than that of the outer cylinder, thereby ensuring that the inner core of the melting cup can be replaced as a whole and ensuring the service life of the melting cup; by setting guide protrusions and guide grooves on the outer and inner cylinders, the installation direction of the inner cylinder can be ensured, which is convenient for installation, and at the same time, the first feed hole and the second feed hole are aligned, ensuring that the molten metal can stably enter the melting cup; by setting steps and fixing parts at both ends of the inner cylinder respectively, the inner cylinder and the outer cylinder can be tightly connected to avoid loosening and ensure the use effect; by setting the first cooling channel and the second cooling channel in the outer and inner cylinders, the cooling efficiency is guaranteed and the service life is extended.

[0018] 2. By providing a limiting convex ring at one end of the outer cylinder and the inner diameter of the limiting convex ring is smaller than the inner diameter of the outer cylinder, the limiting convex ring can be engaged with the step on the inner cylinder to facilitate positioning of the inner cylinder. At the same time, the end of the inner cylinder extends out of the limiting convex ring. During the die-casting process, the molten metal only passes through the inner cylinder to avoid contact with the outer cylinder, ensuring smooth feeding and facilitating the removal of the inner cylinder. By providing multiple fixing parts at the other end of the inner cylinder and fixing holes on the fixing parts, the inner cylinder and the outer cylinder are conveniently connected, loosening is avoided, and feeding is ensured.

[0019] 3. By setting a square block-shaped guide protrusion and setting the guide groove as an L-shaped groove, the inner cylinder and the outer cylinder can be rotatably connected. During installation, the rotation angle of the inner cylinder is limited by the ruler of the guide groove, which facilitates the positioning and alignment of the first feed hole and the second feed hole. At the same time, an indicator arrow is provided at the end of the outer cylinder, combined with multiple fixing parts provided at the end of the inner cylinder, which facilitates rotation adjustment and is easy to install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the die-casting machine melting cup in a preferred embodiment of the present application.

[0021] Figure 2 It is a structural diagram of the outer cylinder in a preferred embodiment of the present application.

[0022] Figure 3 It is a cross-sectional view of the outer cylinder in a preferred embodiment of the present application.

[0023] Figure 4 It is a structural diagram of the inner cylinder in a preferred embodiment of the present application.

[0024] Figure 5 This is a structural diagram of the inner cylinder from another perspective in a preferred embodiment of the present application.

[0025] Explanation of the reference numerals: 1. outer cylinder; 101. guide protrusion; 102. first feed hole; 103. first cooling channel; 104. limiting protrusion ring; 2. inner cylinder; 201. guide groove; 202. fixing portion; 203. second feed hole; 204. second cooling channel. DETAILED DESCRIPTION

[0026] The present application is further described in detail below with reference to the accompanying drawings.

[0027] The embodiment of the present application discloses a die casting machine melting cup.

[0028] Reference Figures 1 to 5 , a die-casting machine melting cup, comprising an outer cylinder 1 and an inner cylinder 2 arranged concentrically, the outer cylinder 1 and the inner cylinder 2 being movably connected and the length of the inner cylinder 2 being greater than the length of the outer cylinder 1, the outer cylinder 1 and the inner cylinder 2 are respectively provided with a guide protrusion 101 and a guide groove 201, the guide protrusion 101 and the guide groove 201 match each other, one end of the inner cylinder 2 is provided with a step and is connected to the outer cylinder 1 through the step, the other end of the inner cylinder 2 is provided with a fixing portion 202 and is connected to the outer cylinder 1 through the fixing portion 202, a first feeding hole 102 and a second feeding hole 203 are respectively provided on the side surfaces of the outer cylinder 1 and the inner cylinder 2, the positions of the first feeding hole 102 and the second feeding hole 203 correspond to each other, a first cooling channel 103 and a second cooling channel 204 are respectively provided in the outer cylinder 1 and the inner cylinder 2, the first cooling channel 103 and the second cooling channel 204 are both spiral channels, the end of the first cooling channel 103 is located on the end side of the outer cylinder 1, and the end of the second cooling channel 204 is located on the end face of the inner cylinder 2.

[0029] Reference Figures 1 to 3 , a limiting convex ring 104 is provided at one end of the outer cylinder 1, the inner diameter of the limiting convex ring 104 is smaller than the inner diameter of the outer cylinder 1 and the limiting convex ring 104 can be connected with the step of the inner cylinder 2. Specifically, in this example, when the limiting convex ring 104 is connected with the inner cylinder 2, the guide protrusion 101 is connected with the end of the guide groove 201; one end of the inner cylinder 2 extends out of the limiting convex ring 104, and the length of the inner cylinder 2 exceeding the outer cylinder 1 does not exceed 1 cm. There are multiple fixing parts 202 and the multiple fixing parts 202 are evenly arranged along the circumferential direction of the side surface of the other end of the inner cylinder 2. A fixing hole is provided on the fixing part 202, and a hole corresponding to the fixing hole is provided on the outer cylinder 1; the guide protrusion 101 is a square block provided on the inner side wall of one end of the outer cylinder 1 near the first feed port 102, and the size of the guide protrusion 101 corresponds to the size of the guide groove 201.

[0030] Reference Figure 4 and Figure 5 The guide groove 201 is an L-shaped groove. The longer section of the guide groove 201 is arranged along the axial direction of the inner cylinder 2 and its length is equal to the length of the outer cylinder 1. The shorter section of the guide groove 201 is arranged along the circumferential direction of the inner cylinder 2. When the guide protrusion 101 is connected to the end of the shorter section of the guide groove 201, the angles of the first feed hole 102 and the second feed hole 203 coincide; an indicator arrow is provided at one end of the outer cylinder 1 close to the guide protrusion 101, and the direction of the indicator arrow is opposite to the bending direction of the guide groove 201, which is convenient for rotation adjustment and installation.

[0031] The implementation principle is as follows: the present application sets a concentric and movably connected outer cylinder 1 and inner cylinder 2, and at the same time the length of the inner cylinder 2 is greater than the length of the outer cylinder 1, which can ensure that the inner core of the melting cup close to the high-temperature molten metal can be replaced as a whole, thereby extending the service life of the melting cup; by setting a guide protrusion 101 and a guide groove 201 on the outer cylinder 1 and the inner cylinder 2, the guide groove 201 is an L-shaped groove, which is convenient for the rotation connection of the inner cylinder 2 and the outer cylinder 1, and the inner cylinder 2 can be connected to the outer cylinder 1 through the cooperation of the guide protrusion and the guide groove, and at the same time facilitate the alignment of the first feed hole 102 and the second feed hole 203 to ensure feeding; by setting steps and fixing parts 202 at both ends of the inner cylinder 2, the inner cylinder 2 can be tightly connected to the outer cylinder 1 to avoid loosening, and the first cooling channel 103 and the second cooling channel 204 set in the outer cylinder 1 and the inner cylinder 2 can ensure cooling efficiency and extend service life.

[0032] When the present application is in use, the staff installs the outer cylinder 1 on the die-casting machine, and then aligns the guide groove 201 on the inner cylinder 2 with the guide protrusion 101 and then inserts the outer cylinder 1. When the step on the inner cylinder 2 abuts against the limiting protrusion 104 at the end of the outer cylinder 1, the guide protrusion 101 reaches the end of the longer section of the guide groove 201, and then the inner cylinder 2 is rotated along the indicator arrow on the end face of the outer cylinder 1. When the guide protrusion 101 reaches the end of the shorter section of the guide groove 201, the second feed port 203 is angularly aligned with the first feed port 102. At this time, the fixing hole on the fixing part 202 is aligned with the hole on the outer cylinder 1, and the bolt is screwed into the hole to fix it. The inner cylinder 2 and the outer cylinder 1 are connected, which is convenient to install and ensures the feeding effect. When the inner cylinder 2 is eroded and damaged by contact with the high-temperature molten metal, the entire inner cylinder 2 can be removed and replaced, and the outer cylinder 1 does not need to be replaced. The replacement is convenient and quick, and can extend the service life of the melting cup.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A die casting machine melting cup, characterized by: The invention comprises an outer cylinder (1) and an inner cylinder (2) which are arranged concentrically, wherein the outer cylinder (1) and the inner cylinder (2) are movably connected and the length of the inner cylinder (2) is greater than the length of the outer cylinder (1), the outer cylinder (1) and the inner cylinder (2) are respectively provided with a guide protrusion (101) and a guide groove (201), the guide protrusion (101) and the guide groove (201) match each other, one end of the inner cylinder (2) is provided with a step and is connected to the outer cylinder (1) through the step, the other end of the inner cylinder (2) is provided with a fixing portion (202) and is connected to the outer cylinder (1) through the fixing portion (202), the side surfaces of the outer cylinder (1) and the inner cylinder (2) are respectively provided with a first feed hole (102) and a second feed hole (203), the positions of the first feed hole (102) and the second feed hole (203) correspond to each other, and the outer cylinder (1) and the inner cylinder (2) are respectively provided with a first cooling channel (103) and a second cooling channel (204).

2. The die casting machine melting cup according to claim 1, characterized in that: A limiting convex ring (104) is provided at one end of the outer cylinder (1), the inner diameter of the limiting convex ring (104) is smaller than the inner diameter of the outer cylinder (1), and the limiting convex ring (104) can be connected to the step of the inner cylinder (2), and one end of the inner cylinder (2) extends out of the limiting convex ring (104), the fixing portion (202) is multiple, and the multiple fixing portions (202) are evenly arranged along the side circumference of the other end of the inner cylinder (2), the fixing portion (202) is provided with a fixing hole, and the outer cylinder (1) is provided with a hole corresponding to the fixing hole.

3. The die casting machine melting cup according to claim 1, characterized in that: The length of the inner cylinder (2) exceeding the outer cylinder (1) does not exceed 1 cm.

4. The die casting machine melting cup according to claim 1, characterized in that: The guide protrusion (101) is a square block arranged on the inner side wall of one end of the outer cylinder (1), and the size of the guide protrusion (101) corresponds to the size of the guide groove (201).

5. The die casting machine melting cup according to claim 4, characterized in that: The guide groove (201) is an L-shaped groove, the longer section of the guide groove (201) is arranged along the axial direction of the inner cylinder (2) and its length is equal to the length of the outer cylinder (1), and the shorter section of the guide groove (201) is arranged along the circumferential direction of the inner cylinder (2). When the guide protrusion (101) is connected to the end of the shorter section of the guide groove (201), the angles of the first feed hole (102) and the second feed hole (203) coincide.

6. The die casting machine melting cup according to claim 5, characterized in that: An indicator arrow is provided at one end of the outer cylinder (1) close to the guide protrusion (101), and the direction of the indicator arrow is opposite to the bending direction of the guide groove (201).

7. The die casting machine melting cup according to claim 1, characterized in that: The first cooling channel (103) and the second cooling channel (204) are both spiral channels. The end of the first cooling channel (103) is located on the end side of the outer tube (1), and the end of the second cooling channel (204) is located on the end surface of the inner tube (2).

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