Graphite sleeve in crystallizer for casting copper pipe

Abstract

The utility model belongs to the technical field of copper pipe casting, and particularly relates to a graphite sleeve in a crystallizer for copper pipe casting, which comprises a right graphite sleeve and a left graphite sleeve, the left graphite sleeve is arranged at the left end of the right graphite sleeve, the rear end of the inner side of the right graphite sleeve is fixedly connected with a central column, and the front ends of the right graphite sleeve and the left graphite sleeve are connected with an end cover. The inner ends and the outer ends of the right graphite sleeve and the left graphite sleeve are connected with dismounting mechanisms. When the graphite sleeve in the crystallizer for casting the copper pipe is used, copper liquid is poured into a right graphite sleeve and a left graphite sleeve from a casting guide hole, then a piston is connected into the casting guide hole in a threaded mode, the front sides of the right graphite sleeve and the left graphite sleeve are rotated around a circular shaft, and a spring rebounds to push a circular ring to drive an inserting rod to move backwards; and after the rear end of the inserting rod moves into the inserting hole, the end cover is fixed to the front ends of the right graphite sleeve and the left graphite sleeve, and then the whole graphite sleeves are placed in a crystallizer to be formed.

Description

Technical Field

[0001] The utility model relates to the technical field of copper tube melting and casting, in particular to a graphite sleeve in a crystallizer for copper tube melting and casting. Background Art

[0002] The first step in copper tube production is to place the electrolytic copper plate in a smelting furnace for melting and then casting to form the initial copper tube ingot.

[0003] However, the copper tube billet that usually comes out of the melting furnace crystallizer is a solid billet. The copper tube billet needs to undergo a center punching process before the next step of production can be carried out. This requires a certain amount of manpower to punch the copper tube billet and increases the production time.

[0004] For example, the graphite sleeve in the crystallizer for copper tube melting and casting disclosed in Chinese patent CN203390169U is installed inside the crystallizer. Since a center column is provided in the middle of the graphite sleeve, the produced copper tube billet can be directly made into a hollow tube without punching, which not only saves labor, but also reduces production processes and saves production time.

[0005] However, the graphite sleeve is a whole and cannot be separated, so it is not convenient to clean the impurities attached to the inner wall.

[0006] For this reason we urgently need to provide a kind of copper tube melting and casting that is easy to disassemble and assemble with the graphite sleeve in the crystallizer. Utility Model Content

[0007] The utility model aims to provide a graphite sleeve in a crystallizer for copper tube melting and casting, so as to solve the problem that the graphite sleeve proposed in the above background technology is a whole and cannot be separated, so it is inconvenient to clean the impurities attached to the inner wall.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a graphite sleeve in a crystallizer for copper tube melting and casting, comprising a right graphite sleeve and a left graphite sleeve, the left graphite sleeve is arranged at the left end of the right graphite sleeve, the inner rear end of the right graphite sleeve is fixedly connected with a center column, the front ends of the right graphite sleeve and the left graphite sleeve are connected with end covers, the inner and outer ends of the right graphite sleeve and the left graphite sleeve are connected with a disassembly and assembly mechanism, the disassembly and assembly mechanism comprises a disassembly and assembly unit and a connecting unit, the disassembly and assembly unit is arranged at the outer ends of the right graphite sleeve and the left graphite sleeve, and the connecting unit is arranged at the front ends of the right graphite sleeve and the left graphite sleeve.

[0009] The disassembly and assembly unit comprises a threaded rod and a cylinder. The threaded rod is fixedly connected to the front and rear sides of the upper and lower ends of the left side of the right graphite sleeve, and the cylinder is connected to the outer end of the threaded rod.

[0010] A further improvement is that grooves are provided at the front and rear sides of the upper and lower ends of the left graphite sleeve, a round hole is provided in the middle position of the left graphite sleeve to the right of the groove, the outer side of the threaded rod is slidably connected to the inner side of the round hole, and the left side of the right graphite sleeve is abutted against the right side of the left graphite sleeve. Therefore, when the left graphite sleeve is placed on the left side of the right graphite sleeve, the cylinder will pass through the round hole, thereby limiting the movement of the left graphite sleeve during disassembly and assembly.

[0011] A further improvement is that the inner side of the cylinder is provided with an internal thread, the outer side of the threaded rod is threadedly connected to the inner side of the cylinder, and the right side of the cylinder abuts against the inner right end of the groove. Thus, after the left graphite sleeve is placed on the left side of the right graphite sleeve and the threaded rod passes through the circular hole, the cylinder is threadedly connected to the outer side of the threaded rod until the right side of the cylinder contacts the inner right end of the groove, and the left graphite sleeve is fixed to the left side of the right graphite sleeve.

[0012] A further improvement is that the connecting unit includes a round shaft, a baffle, a connecting frame, a spring, a ring and an insert rod, the round shaft is fixedly connected to the middle position of the right side of the right graphite sleeve, the baffle is fixedly connected to the front side of the round shaft, the connecting frame is fixedly connected to the front left end of the end cover, the spring is fixedly connected to the inner front end of the connecting frame, the ring is fixedly connected to the rear end of the spring, and the insert rod is fixedly connected to the inner side of the ring.

[0013] A further improvement is that a sliding hole is provided in the middle of the front end of the end cover and the middle of the right end of the connecting frame, and the outer side of the insertion rod is slidably connected to the inner side of the sliding hole. Therefore, when the spring drives the ring to move, the insertion rod can be driven to slide along the inner side of the sliding hole, thereby limiting the movement of the insertion rod.

[0014] A further improvement is that a rotating hole is provided in the middle of the right end of the end cover, a plug hole is provided in the middle of the right front end of the left graphite sleeve, the outer side of the left end of the plug rod is plugged into the inner side of the plug hole, the outer side of the circular shaft is rotatably connected to the inner side of the rotating hole, the front right end of the end cover is slidably connected to the rear side of the baffle, and the front sides of the right and left graphite sleeves are slidably connected to the rear side of the end cover. Thus, after the end cover is rotated around the circular axis to the front end of the right and left graphite sleeves, the spring rebounds to push the ring backward, driving the plug rod to move backward together, until the rear end of the plug rod moves into the plug hole, the end cover can be fixed to the front end of the right and left graphite sleeves, and the front end of the right and left graphite sleeves is closed.

[0015] A further improvement is that the upper and lower ends of the end cover are provided with a casting hole, and a piston is connected to the inner side of the casting hole, a rotating plate is fixedly connected to the front side of the piston, an outer thread is provided on the outer side of the piston, an inner thread is provided on the inner side of the casting hole, and the outer side of the piston is threadedly connected to the inner side of the casting hole. Therefore, after pouring the molten copper from the casting hole into the right graphite sleeve and the left graphite sleeve, the piston is threadedly connected to the casting hole, so that the casting hole can be closed to prevent the molten copper in the right graphite sleeve and the left graphite sleeve from splashing out of the casting hole.

[0016] In summary, the present application discloses a graphite sleeve in a crystallizer for copper tube melting and casting.

[0017] According to the technical solution, after the cylinder is removed from the outer side of the threaded rod by rotating it, the left graphite sleeve is no longer fixed to the left end of the right graphite sleeve, and then the right graphite sleeve and the left graphite sleeve are pulled to the left and right ends respectively, and then the impurities inside the right graphite sleeve and the left graphite sleeve can be easily cleaned.

[0018] Furthermore, after the copper tubes in the right graphite sleeve and the left graphite sleeve are formed, the copper tubes in the right graphite sleeve and the left graphite sleeve can be easily taken out by pulling the insertion rod forward to move the rear end forward out of the insertion hole, and then rotating the end cover around the circular axis away from the front end of the right graphite sleeve and the left graphite sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the front end of the main body of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the right graphite sleeve and the left graphite sleeve of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the end cover of the utility model.

[0023] In the figure: 1, right graphite sleeve; 2, left graphite sleeve; 3, center column; 4, end cover; 501, threaded rod; 502, cylinder; 601, round shaft; 602, baffle; 603, connecting frame; 604, spring; 605, ring; 606, plug rod; 7, piston; 8, rotating plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A graphite sleeve in a crystallizer for copper tube melting and casting comprises a right graphite sleeve 1 and a left graphite sleeve 2, wherein the left graphite sleeve 2 is arranged at the left end of the right graphite sleeve 1, a center column 3 is fixedly connected to the inner rear end of the right graphite sleeve 1, end covers 4 are connected to the front ends of the right graphite sleeve 1 and the left graphite sleeve 2, and a disassembly mechanism is connected to the inner and outer ends of the right graphite sleeve 1 and the left graphite sleeve 2, wherein the disassembly mechanism comprises a disassembly unit and a connection unit, wherein the disassembly unit is arranged at the outer ends of the right graphite sleeve 1 and the left graphite sleeve 2, and the connection unit is arranged at the front ends of the right graphite sleeve 1 and the left graphite sleeve 2.

[0028] The disassembly and assembly unit comprises a threaded rod 501 and a cylinder 502 . The threaded rod 501 is fixedly connected to the front and rear sides of the upper and lower ends of the left side of the right graphite sleeve 1 , and the cylinder 502 is connected to the outer end of the threaded rod 501 .

[0029] Grooves are provided at the front and rear sides of the upper and lower ends of the left graphite sleeve 2, and a round hole is provided in the middle position of the left graphite sleeve 2 on the right side of the groove. The outer side of the threaded rod 501 is slidably connected with the inner side of the round hole, and the left side of the right graphite sleeve 1 is in contact with the right side of the left graphite sleeve 2. Therefore, when the left graphite sleeve 2 is placed on the left side of the right graphite sleeve 1, the cylinder 502 will pass through the round hole, thereby limiting the movement of the left graphite sleeve 2 during disassembly and assembly.

[0030] The inner side of the cylinder 502 is provided with an internal thread, the outer side of the threaded rod 501 is threadedly connected to the inner side of the cylinder 502, and the right side of the cylinder 502 abuts against the inner right end of the groove. Thus, after the left graphite sleeve 2 is placed on the left side of the right graphite sleeve 1 and the threaded rod 501 passes through the circular hole, the cylinder 502 is threadedly connected to the outer side of the threaded rod 501 until the right side of the cylinder 502 contacts the inner right end of the groove, and the left graphite sleeve 2 is fixed to the left side of the right graphite sleeve 1.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment: the connection unit includes a circular shaft 601, a baffle 602, a connecting frame 603, a spring 604, a circular ring 605 and a plug rod 606. The circular shaft 601 is fixedly connected to the middle position of the right side of the right graphite sleeve 1, the baffle 602 is fixedly connected to the front side of the circular shaft 601, the connecting frame 603 is fixedly connected to the front left end of the end cover 4, the spring 604 is fixedly connected to the inner front end of the connecting frame 603, the circular ring 605 is fixedly connected to the rear end of the spring 604, and the plug rod 606 is fixedly connected to the inner side of the circular ring 605. A sliding hole is provided at the middle position of the front end of the end cover 4 and the middle position of the right end of the connecting frame 603, and the outer side of the plug rod 606 is slidably connected to the inner side of the sliding hole. Therefore, when the spring 604 is elastically driven to move the circular ring 605, the plug rod 606 can be driven to slide along the inner side of the sliding hole, thereby limiting the movement of the plug rod 606.

[0033] A rotating hole is provided in the middle of the right end of the end cover 4, and a plug hole is provided in the middle of the right front end of the left graphite sleeve 2. The outer side of the left end of the plug rod 606 is plugged into the inner side of the plug hole, and the outer side of the circular shaft 601 is rotatably connected to the inner side of the rotating hole. The front right end of the end cover 4 is slidably connected to the rear side of the baffle 602, and the front sides of the right graphite sleeve 1 and the left graphite sleeve 2 are slidably connected to the rear side of the end cover 4. Thus, after the end cover 4 is rotated around the circular shaft 601 to the front end of the right graphite sleeve 1 and the left graphite sleeve 2, the spring 604 rebounds, pushes the ring 605 backward, and drives the plug rod 606 to move backward together, until the rear end of the plug rod 606 moves into the plug hole, so that the end cover 4 can be fixed to the front end of the right graphite sleeve 1 and the left graphite sleeve 2, and the front end of the right graphite sleeve 1 and the left graphite sleeve 2 is closed.

[0034] Embodiment three:

[0035] On the basis of the first embodiment: the upper and lower ends of the end cover 4 are provided with casting holes, and the inner side of the casting hole is connected with a piston 7, the front side of the piston 7 is fixedly connected with a rotating plate 8, the outer side of the piston 7 is provided with an external thread, the inner side of the casting hole is provided with an internal thread, and the outer side of the piston 7 is threadedly connected with the inner side of the casting hole. Therefore, after the copper liquid is poured into the right graphite sleeve 1 and the left graphite sleeve 2 from the casting hole, the piston 7 is threadedly connected to the casting hole, so that the casting hole can be closed to prevent the copper liquid in the right graphite sleeve 1 and the left graphite sleeve 2 from splashing out from the casting hole.

[0036] Working principle: When in use, first pour the molten copper into the right graphite sleeve 1 and the left graphite sleeve 2 from the casting hole, then thread the piston 7 into the casting hole, and then rotate the end cover 4 around the circular axis 601 to move the front side of the right graphite sleeve 1 and the left graphite sleeve 2. The spring 604 rebounds and pushes the ring 605 to drive the insertion rod 606 to move backward until the rear end of the insertion rod 606 moves into the insertion hole. The end cover 4 is fixed to the front end of the right graphite sleeve 1 and the left graphite sleeve 2, and then the graphite sleeve as a whole is placed in the crystallizer for molding.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A graphite sleeve in a copper tube melting and casting crystallizer, comprising a right graphite sleeve (1) and a left graphite sleeve (2), wherein the left graphite sleeve (2) is arranged at the left end of the right graphite sleeve (1), characterized in that: The inner rear end of the right graphite sleeve (1) is fixedly connected to a central column (3), the front ends of the right graphite sleeve (1) and the left graphite sleeve (2) are connected to end covers (4), and the inner and outer ends of the right graphite sleeve (1) and the left graphite sleeve (2) are connected to a disassembly mechanism, the disassembly mechanism comprising a disassembly unit and a connection unit, the disassembly unit is arranged at the outer ends of the right graphite sleeve (1) and the left graphite sleeve (2), and the connection unit is arranged at the front ends of the right graphite sleeve (1) and the left graphite sleeve (2); The disassembly and assembly unit comprises a threaded rod (501) and a cylinder (502), wherein the threaded rod (501) is fixedly connected to the front and rear sides of the upper and lower ends of the left side of the right graphite sleeve (1), and the cylinder (502) is connected to the outer end of the threaded rod (501).

2. The graphite sleeve in a copper tube casting crystallizer according to claim 1, characterized in that: The left graphite sleeve (2) has grooves at the front and rear ends of the upper and lower ends, and a circular hole is provided in the middle of the left graphite sleeve (2) to the right of the groove. The outer side of the threaded rod (501) is slidably connected to the inner side of the circular hole, and the left side of the right graphite sleeve (1) is in contact with the right side of the left graphite sleeve (2).

3. The graphite sleeve in a copper tube melting and casting crystallizer according to claim 1, characterized in that: The inner side of the cylinder (502) is provided with an internal thread, the outer side of the threaded rod (501) is threadedly connected to the inner side of the cylinder (502), and the right side of the cylinder (502) is in contact with the inner right end of the groove.

4. The graphite sleeve in a copper tube melting and casting crystallizer according to claim 1, characterized in that: The connecting unit comprises a circular shaft (601), a baffle (602), a connecting frame (603), a spring (604), a circular ring (605) and an insert rod (606); the circular shaft (601) is fixedly connected to the middle position of the right side of the right graphite sleeve (1); the baffle (602) is fixedly connected to the front side of the circular shaft (601); the connecting frame (603) is fixedly connected to the front left end of the end cover (4); the spring (604) is fixedly connected to the inner front end of the connecting frame (603); the circular ring (605) is fixedly connected to the rear end of the spring (604); and the insert rod (606) is fixedly connected to the inner side of the circular ring (605).

5. The graphite sleeve in a crystallizer for copper tube melting and casting according to claim 4, characterized in that: A sliding hole is provided at the middle position of the front end inside the end cover (4) and at the middle position of the right end inside the connecting frame (603), and the outer side of the insertion rod (606) is slidably connected to the inner side of the sliding hole.

6. The graphite sleeve in the crystallizer for copper tube melting and casting according to claim 4, characterized in that: A rotating hole is provided in the middle of the right end of the end cover (4), a plug hole is provided in the middle of the right side of the front end of the left graphite sleeve (2), the outer side of the left end of the plug rod (606) is plugged into the inner side of the plug hole, the outer side of the circular shaft (601) is rotatably connected to the inner side of the rotating hole, the front right end of the end cover (4) is slidably connected to the rear side of the baffle (602), and the front sides of the right graphite sleeve (1) and the left graphite sleeve (2) are slidably connected to the rear side of the end cover (4).

7. The graphite sleeve in a copper tube melting and casting crystallizer according to claim 1, characterized in that: The end cover (4) is provided with a casting hole at both upper and lower ends, and the inner side of the casting hole is connected to a piston (7), the front side of the piston (7) is fixedly connected to a rotating plate (8), the outer side of the piston (7) is provided with an external thread, the inner side of the casting hole is provided with an internal thread, and the outer side of the piston (7) is threadedly connected to the inner side of the casting hole.

Images