Medium-frequency induction furnace for casting machining

Abstract

The utility model belongs to the technical field of casting machining, and particularly relates to a medium-frequency induction furnace for casting machining, which comprises a furnace shell and supporting legs, the supporting legs are fixedly connected to the lower side of the furnace shell, an electric heating wire is fixedly connected to the outer side of the furnace shell, and machining mechanisms are connected to the inner end and the outer end of the furnace shell. The machining mechanism comprises dismounting units and a maintenance unit, the dismounting units are arranged at the inner end and the outer end of the furnace shell, and the maintenance unit is arranged at the outer end of the furnace shell. When the medium-frequency induction furnace for casting machining is used, after raw materials for casting machining are poured into the furnace lining, the furnace cover is rotated to the upper end of the furnace shell, then a rotating handle is rotated to drive a threaded rod to rotate and move downwards at the same time till the lower end of the threaded rod moves into a threaded groove in the upper portion of the front end of the furnace shell, and the furnace cover is fixed to the upper end of the furnace shell; and then the electric heating wires are electrified, and heat generated by the electric heating wires penetrates through the furnace shell and the furnace lining to heat the furnace shell and the furnace lining.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing, in particular to a medium frequency induction furnace for casting processing. Background Art

[0002] The medium frequency induction furnace is a kind of furnace that converts three-phase industrial frequency alternating current into direct current after rectification, and then converts the direct current into an adjustable current, which supplies the alternating current flowing through the capacitor and the induction coil, generates high-density magnetic lines in the induction coil, and cuts the metal material contained in the induction coil, generating a large eddy current in the metal material. This eddy current also has some properties of medium frequency current, that is, the free electrons of the metal itself flow in the metal body with resistance to generate heat.

[0003] The shell of the existing medium frequency induction furnace for casting processing is generally an integrated type. When the induction coil is damaged, it is inconvenient to repair it, which increases the labor intensity of the workers.

[0004] For example, a medium-frequency induction furnace for casting processing disclosed in Chinese patent CN211425054U has a first limit block and a second limit block fixedly connected to the top and bottom of the left furnace shell front side respectively, and a first fixed block and a second fixed block fixedly connected to the top and bottom of the right furnace shell front side respectively, a limit rod is slidably connected to the top of the first limit block, and the top of the limit rod is in an "n" shape, the bottom end of the limit rod passes through the first limit block and the second limit block and extends to the bottom of the second limit block, and an L-shaped rod is fixedly connected to the right side of the limit rod surface and located directly above the second limit block. The other end of the limiting rod passes through the first fixed block and extends to the bottom of the first fixed block, the bottom end of the L-shaped rod passes through the second fixed block and extends to the bottom of the second fixed block, and the tops of the first fixed block and the second fixed block are respectively provided with through holes adapted to the limiting rod and the L-shaped rod, dividing the furnace shell into left and right parts, which can be opened. When the coil is damaged, the limiting rod and the L-shaped rod are respectively pulled out from the inside of the first fixed block and the second fixed block, and the left furnace shell and the right furnace shell can be opened to both sides respectively, which is convenient for maintenance and easy to operate, reducing the labor intensity of the staff and improving practicality.

[0005] However, the furnace lining in the medium frequency induction furnace is fixed to the medium frequency induction furnace, so it is difficult to remove the furnace lining for cleaning when the inside of the furnace lining needs to be cleaned.

[0006] For this reason, we urgently need to provide a medium frequency induction furnace for casting processing. Utility Model Content

[0007] The utility model aims to provide a medium frequency induction furnace for casting processing, so as to solve the problem that the furnace lining in the medium frequency induction furnace proposed in the above background technology is fixed to the medium frequency induction furnace, so it is difficult to disassemble and clean the inside of the furnace lining when it is necessary to clean it.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medium-frequency induction furnace for casting processing, comprising a furnace shell and support legs, the support legs are fixedly connected to the lower side of the furnace shell, the outer side of the furnace shell is fixedly connected with a heating wire, the inner and outer ends of the furnace shell are connected with a processing mechanism, the processing mechanism comprises a disassembly unit and a maintenance unit, the disassembly unit is arranged at the inner and outer ends of the furnace shell, and the maintenance unit is arranged at the outer end of the furnace shell.

[0009] The disassembly and assembly unit includes a furnace lining, a furnace cover, a threaded rod and a rotating handle. The furnace lining is slidably connected to the inner side of the furnace shell, the furnace cover is hinged to the upper end of the furnace shell by a hinge, the threaded rod is connected to the middle position of the inner front end of the furnace cover, and the rotating handle is fixedly connected to the upper end of the threaded rod.

[0010] A further improvement is that a threaded hole is provided in the middle of the front end of the furnace cover, and the outer side of the threaded rod is threadedly connected to the inner side of the threaded hole, so that when the rotating handle is turned to drive the threaded rod in the threaded hole to rotate, the threaded rod will move relative to the furnace cover.

[0011] A further improvement is that a thread groove is provided at the middle position above the front end of the furnace shell, and the outer side of the lower end of the threaded rod is threadedly connected to the inner side of the thread groove. Therefore, after the furnace cover is rotated to the upper end of the furnace shell, the rotating handle is rotated to drive the threaded rod in the threaded hole to rotate and move downward until the lower end of the threaded rod is threadedly connected to the thread groove, so that the furnace cover can be fixed to the upper end of the furnace shell.

[0012] A further improvement is that the maintenance unit includes a left outer shell, a right outer shell, a fixed plate, a connecting plate, a connecting frame, a spring, a fixed ring and an insertion rod, the left outer shell is hinged to the outer left end of the furnace shell by a hinge, the right outer shell is hinged to the outer right end of the furnace shell by a hinge, the fixed plate is fixedly connected to the middle position of the outer front end of the left outer shell, the connecting plate is fixedly connected to the middle position of the outer front end of the right outer shell, the connecting frame is fixedly connected to the upper side of the connecting plate, the spring is fixedly connected to the inner top end of the connecting frame, the fixed ring is fixedly connected to the lower end of the spring, and the insertion rod is fixedly connected to the inner side of the fixed ring.

[0013] A further improvement is that a sliding hole is provided in the middle of the upper end of the connecting plate and 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 fixing 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 plug hole is provided on the upper right end of the fixing plate, and the outer side of the lower end of the plug rod is plugged into the inner side of the plug hole. Thus, after the left and right outer shells are rotated until the outer ends of the furnace shell are in contact, the fixing ring is pushed down by the spring rebound, driving the plug rod to move down to its lower end and move into the plug hole, so that the fixing plate and the plug rod are relatively fixed, thereby fixing the left and right outer shells to the outer ends of the furnace shell.

[0015] A further improvement is that a rubber pad is fixedly connected to the upper side of the furnace lining, so that after the furnace cover is fixed to the upper end of the furnace shell, the rubber pad on the upper side of the furnace lining contacts the lower edge of the furnace cover, so that the upper end of the furnace shell can be kept closed, thereby improving the heat preservation effect inside the furnace lining.

[0016] In summary, the present application discloses a medium frequency induction furnace for casting processing.

[0017] The technical solution drives the threaded rod to rotate in the threaded hole and the threaded groove while moving upward by rotating the rotating handle until the threaded rod moves out of the threaded groove, then opens the furnace cover, and then pulls the furnace lining out of the furnace shell, thereby facilitating the cleaning of the furnace lining.

[0018] Furthermore, by pulling up the insertion rod so that its lower end moves out of the insertion hole, the fixing plate and the insertion rod are no longer relatively fixed, and then the left shell and the right shell are pulled to the left and right ends so that the left shell and the right shell are away from the furnace shell, and the heating wire can be inspected. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the structure at the outer end of the furnace shell of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the maintenance unit of the utility model;

[0022] Figure 4 for Figure 2 Enlarged view of point A.

[0023] In the figure: 1, furnace shell; 2, supporting legs; 3, heating wire; 401, furnace lining; 402, furnace cover; 403, threaded rod; 404, rotating handle; 501, left shell; 502, right shell; 503, fixing plate; 504, connecting plate; 505, connecting frame; 506, spring; 507, fixing ring; 508, plug rod. 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 medium frequency induction furnace for casting processing comprises a furnace shell 1 and support legs 2, wherein the support legs 2 are fixedly connected to the lower side of the furnace shell 1, an electric heating wire 3 is fixedly connected to the outer side of the furnace shell 1, and a processing mechanism is connected to the inner and outer ends of the furnace shell 1, the processing mechanism comprises a disassembly unit and a maintenance unit, the disassembly unit is arranged at the inner and outer ends of the furnace shell 1, and the maintenance unit is arranged at the outer end of the furnace shell 1.

[0028] The disassembly and assembly unit includes a furnace lining 401, a furnace cover 402, a threaded rod 403 and a rotating handle 404. The furnace lining 401 is slidably connected to the inner side of the furnace shell 1, the furnace cover 402 is hinged to the upper end of the furnace shell 1 through a hinge, the threaded rod 403 is connected to the middle position of the inner front end of the furnace cover 402, and the rotating handle 404 is fixedly connected to the upper end of the threaded rod 403. A threaded hole is provided in the middle position of the inner front end of the furnace cover 402, and the outer side of the threaded rod 403 is threadedly connected to the inner side of the threaded hole. Therefore, when the rotating handle 404 is rotated to drive the threaded rod 403 located in the threaded hole to rotate, the threaded rod 403 will move relative to the furnace cover 402.

[0029] A thread groove is provided at the middle position above the front end of the furnace shell 1, and the outer side of the lower end of the threaded rod 403 is threadedly connected to the inner side of the thread groove. Therefore, after the furnace cover 402 is rotated to the upper end of the furnace shell 1, the rotating handle 404 is rotated to drive the threaded rod 403 to rotate in the threaded hole and move downward until the lower end of the threaded rod 403 is threadedly connected to the thread groove, so that the furnace cover 402 can be fixed to the upper end of the furnace shell 1.

[0030] Embodiment 2:

[0031] On the basis of Example 1: the maintenance unit includes a left shell 501, a right shell 502, a fixed plate 503, a connecting plate 504, a connecting frame 505, a spring 506, a fixed ring 507 and an insertion rod 508. The left shell 501 is hinged to the left end of the outer side of the furnace shell 1 by a hinge, and the right shell 502 is hinged to the right end of the outer side of the furnace shell 1 by a hinge. The fixed plate 503 is fixedly connected to the middle position of the outer front end of the left shell 501, the connecting plate 504 is fixedly connected to the middle position of the outer front end of the right shell 502, the connecting frame 505 is fixedly connected to the upper side of the connecting plate 504, the spring 506 is fixedly connected to the inner top end of the connecting frame 505, the fixed ring 507 is fixedly connected to the lower end of the spring 506, and the insertion rod 508 is fixedly connected to the inner side of the fixed ring 507.

[0032] A sliding hole is provided in the middle of the upper end of the connecting plate 504 and the connecting frame 505, and the outer side of the plug rod 508 is slidably connected to the inner side of the sliding hole. Therefore, when the spring 506 drives the fixing ring 507 to move, the plug rod 508 can be driven to slide along the inner side of the sliding hole, thereby limiting the movement of the plug rod 508.

[0033] A plug hole is provided on the upper right end of the fixing plate 503, and the lower end outer side of the plug rod 508 is plugged into the inner side of the plug hole. Therefore, after the left shell 501 and the right shell 502 are rotated to contact the outer end of the furnace shell 1, the fixing ring 507 is pushed down by the spring 506 to drive the plug rod 508 to move down to its lower end and move into the plug hole, so that the fixing plate 503 and the plug rod 508 are relatively fixed, so that the left shell 501 and the right shell 502 are fixed to the outer end of the furnace shell 1.

[0034] Embodiment three:

[0035] On the basis of the first embodiment: a rubber pad is fixedly connected to the upper side of the furnace lining 401. After the furnace cover 402 is fixed to the upper end of the furnace shell 1, the rubber pad on the upper side of the furnace lining 401 contacts the lower edge of the furnace cover 402, so that the upper end of the furnace shell 1 can be kept closed, thereby improving the heat preservation effect inside the furnace lining 401.

[0036] Working principle: When in use, after pouring the raw materials for casting processing into the furnace lining 401, rotate the furnace cover 402 to the upper end of the furnace shell 1, then rotate the rotating handle 404 to drive the threaded rod 403 to rotate and move downward until the lower end of the threaded rod 403 moves to the threaded groove above the front end of the furnace shell 1, fix the furnace cover 402 to the upper end of the furnace shell 1, and then energize the heating wire 3. The heating wire 3 generates heat that passes through the furnace shell 1 and the furnace lining 401 to heat the part therein.

[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 medium frequency induction furnace for casting processing, comprising a furnace shell (1) and support legs (2), wherein the support legs (2) are fixedly connected to the lower side of the furnace shell (1), characterized in that: The outer side of the furnace shell (1) is fixedly connected with an electric heating wire (3), and the inner and outer ends of the furnace shell (1) are connected with a processing mechanism, and the processing mechanism comprises a disassembly unit and a maintenance unit, the disassembly unit is arranged at the inner and outer ends of the furnace shell (1), and the maintenance unit is arranged at the outer end of the furnace shell (1); The disassembly and assembly unit comprises a furnace lining (401), a furnace cover (402), a threaded rod (403) and a rotating handle (404); the furnace lining (401) is slidably connected to the inner side of the furnace shell (1); the furnace cover (402) is hinged to the upper end of the furnace shell (1) through a hinge; the threaded rod (403) is connected to the middle position of the inner front end of the furnace cover (402); and the rotating handle (404) is fixedly connected to the upper end of the threaded rod (403).

2. The medium frequency induction furnace for casting processing according to claim 1, characterized in that: A threaded hole is provided at the middle position of the front end of the furnace cover (402), and the outer side of the threaded rod (403) is threadedly connected to the inner side of the threaded hole.

3. The medium frequency induction furnace for casting processing according to claim 1, characterized in that: A thread groove is provided at a middle position above the front end of the furnace shell (1), and the outer side of the lower end of the threaded rod (403) is threadedly connected to the inner side of the thread groove.

4. The medium frequency induction furnace for casting processing according to claim 1, characterized in that: The maintenance unit comprises a left shell (501), a right shell (502), a fixing plate (503), a connecting plate (504), a connecting frame (505), a spring (506), a fixing ring (507) and an insert rod (508); the left shell (501) is hinged to the left end of the outer side of the furnace shell (1) through a hinge; the right shell (502) is hinged to the right end of the outer side of the furnace shell (1) through a hinge; the fixing plate (503) is fixedly connected to the middle position of the outer front end of the left shell (501); the connecting plate (504) is fixedly connected to the middle position of the outer front end of the right shell (502); the connecting frame (505) is fixedly connected to the upper side of the connecting plate (504); the spring (506) is fixedly connected to the inner top end of the connecting frame (505); the fixing ring (507) is fixedly connected to the lower end of the spring (506); and the insert rod (508) is fixedly connected to the inner side of the fixing ring (507).

5. The medium frequency induction furnace for casting processing according to claim 4, characterized in that: A sliding hole is provided in the middle of the upper end of the connection plate (504) and the connection frame (505), and the outer side of the insertion rod (508) is slidably connected to the inner side of the sliding hole.

6. The medium frequency induction furnace for casting processing according to claim 4, characterized in that: An insertion hole is provided at the upper right end of the interior of the fixing plate (503), and the outer side of the lower end of the insertion rod (508) is plugged into the inner side of the insertion hole.

7. The medium frequency induction furnace for casting processing according to claim 1, characterized in that: A rubber pad is fixedly connected to the upper side of the furnace lining (401).

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