Precision hardware casting furnace

Abstract

The utility model belongs to the technical field of casting furnaces, in particular to a precision hardware casting furnace, and aims to solve the problems that a furnace cover is inconvenient to open and close and a metal solution is easy to oxidize in the prior art, the precision hardware casting furnace comprises a support, a furnace body is arranged on the support, a heating seat is arranged in the furnace body, a crucible is arranged on the heating seat, and a metal layer is arranged on the crucible. A motor is arranged on the support, an opening and closing discharging mechanism is arranged on the support, the opening and closing discharging mechanism comprises a lifting screw, the lifting screw is fixedly connected with an output shaft of the motor, a lifting frame is installed on the support in a sliding mode, the lifting frame is in threaded connection with the lifting screw, and a cover plate is rotatably installed on the lifting frame. According to the utility model, the furnace cover can be automatically opened and closed, molten metal can be conveniently poured, the molten metal can be prevented from being oxidized due to the fact that the furnace cover is not in contact with the outside, the quality of hardware can be further ensured, the use is simple, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of casting furnaces, in particular to a precision hardware casting furnace. Background Art

[0002] With the continuous improvement of the industrialization process, the application of standard parts plays an important role in industrialization. The casting furnace is an essential processing equipment in the production of standard parts. Smelting is a pyrometallurgical process in which metal materials and other auxiliary materials are put into a heating furnace to melt and temper. The charge undergoes certain physical and chemical changes after being subjected to high temperature to produce crude metal or metal enrichment and slag. The authorization announcement number CN218283707U discloses a casting furnace for hardware casting, including a base, the upper surface of the base is fixedly connected to the bottom of the casting furnace body, the inner wall of the casting furnace body is sleeved with the outer circumferential surface of the bottom of the graphite crucible, one end of the top of the graphite crucible is fixedly connected to one end of the fixing clip by bolts, and the middle part of the other end of the fixing clip is fixedly connected to one end of the sliding rod. However, this casting furnace is not convenient for opening and closing the furnace cover, and when the molten metal is poured into the mold, the surface of the molten metal is easily oxidized in contact with the outside world, which will affect the quality of the cast parts. For this reason, we propose a precision hardware casting furnace. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art that the furnace cover is inconvenient to open and close and the metal solution is easily oxidized, and proposes a precision hardware casting furnace.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A precision hardware casting furnace comprises a bracket, a furnace body is arranged on the bracket, a heating seat is arranged in the furnace body, a crucible is arranged on the heating seat, a motor is arranged on the bracket, an opening and closing discharging mechanism is arranged on the bracket, the opening and closing discharging mechanism comprises a lifting screw, the lifting screw is fixedly connected to the output shaft of the motor, a lifting frame is slidably mounted on the bracket, the lifting frame is threadedly connected to the lifting screw, a cover plate is rotatably mounted on the lifting frame, a blocking plate is arranged on the cover plate, a discharging pipe is arranged on the cover plate, a valve is arranged on the discharging pipe, two racks are fixedly mounted on the bracket, two gears are fixedly mounted on the cover plate, the two gears are meshed with the two racks, a fixing mechanism is arranged on the cover plate, the fixing mechanism comprises four rotating handles, four fixing screws are rotatably mounted on the cover plate, the four rotating handles are fixedly connected to the four fixing screws, the four fixing screws are all threadedly connected with fixing pins, four fixing holes are opened on the crucible, and the four fixing pins cooperate with the four fixing holes.

[0006] Preferably, four second bearings are arranged on the cover plate, and the inner rings of the four second bearings are fixedly connected to four fixing screws.

[0007] Preferably, a first bearing is provided on the bracket, and an inner ring of the first bearing is fixedly connected to the lifting screw.

[0008] Preferably, two rotating shafts are rotatably mounted on the lifting frame, and both rotating shafts are fixedly connected to the cover plate.

[0009] Preferably, the cover plate is provided with four groove rails, and the four groove rails are slidably connected to four fixing pins.

[0010] Preferably, the bracket is provided with two vertical rails, and the two vertical rails are slidably connected to the lifting frame.

[0011] In the utility model, the beneficial effects of the precision hardware casting furnace are as follows: the arrangement of the lifting screw, the lifting frame, the rack, the gear and the discharge pipe in the opening and closing discharge mechanism can open the cover plate and lift the crucible, and then pour the metal solution in the crucible into the mold, so as to cast hardware parts, and the metal solution does not contact the outside world during the whole process, and oxidation will not occur, so the quality of the hardware parts can be guaranteed. The arrangement of the fixing mechanism can stably fix the cover plate and the crucible together, so as to facilitate the lifting of the crucible and facilitate disassembly and maintenance when problems occur in the equipment.

[0012] The utility model can automatically open and close the furnace cover, which is convenient for pouring out the metal solution. Since the metal solution does not come into contact with the outside world, oxidation of the metal solution can be avoided, thereby ensuring the quality of the hardware. The utility model is simple to use and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a lifting frame of a precision hardware casting furnace proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the first embodiment of a precision hardware casting furnace proposed by the utility model;

[0015] Figure 3 It is a partial side section structural schematic diagram of a precision hardware casting furnace proposed by the utility model;

[0016] Figure 4 A precision hardware casting furnace proposed by the utility model Figure 2 A schematic diagram of the enlarged structure of part A;

[0017] Figure 5 This is a schematic diagram of the main structure of a second embodiment of a precision hardware casting furnace proposed by the utility model.

[0018] In the figure: 1. bracket; 2. furnace body; 3. heating seat; 4. crucible; 5. motor; 6. lifting screw; 7. lifting frame; 8. cover plate; 9. blocking plate; 10. discharge pipe; 11. rack; 12. gear; 13. rotary handle; 14. fixing screw; 15. fixing pin; 16. fixing hole; 17. mounting groove; 18. cylinder; 19. mold base. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1

[0021] Reference Figure 1-Figure 3 A precision hardware casting furnace comprises a bracket 1, a furnace body 2 is arranged on the bracket 1, a heating seat 3 is arranged in the furnace body 2, a crucible 4 is arranged on the heating seat 3, a motor 5 is arranged on the bracket 1, an opening and closing discharging mechanism is arranged on the bracket 1, and the opening and closing discharging mechanism comprises a lifting screw 6, and the lifting screw 6 is fixedly connected to the output shaft of the motor 5, a lifting frame 7 is slidably installed on the bracket 1, the lifting frame 7 is threadedly connected to the lifting screw 6, a cover plate 8 is rotatably installed on the lifting frame 7, a blocking plate 9 is arranged on the cover plate 8, a discharging pipe 10 is arranged on the cover plate 8, and a valve is arranged on the discharging pipe 10, two racks 11 are fixedly installed on the bracket 1, two gears 12 are fixedly installed on the cover plate 8, the two gears 12 are meshed with the two racks 11, and a fixing mechanism is arranged on the cover plate 8.

[0022] Reference Figure 2-Figure 4 The fixing mechanism includes four rotary handles 13, four fixing screws 14 are rotatably mounted on the cover plate 8, the four rotary handles 13 are fixedly connected to the four fixing screws 14, and the four fixing screws 14 are all threadedly connected with fixing pins 15. Four fixing holes 16 are opened on the crucible 4, and the four fixing pins 15 cooperate with the four fixing holes 16.

[0023] Reference Figure 2 A first bearing is provided on the bracket 1, and the inner ring of the first bearing is fixedly connected to the lifting screw 6. The setting of the first bearing can enable the lifting screw 6 to rotate stably at a fixed position.

[0024] Reference Figure 2 Two vertical rails are arranged on the bracket 1, and both vertical rails are slidably connected to the lifting frame 7. The arrangement of the vertical rails enables the lifting frame 7 to slide stably on the bracket 1 without rotating.

[0025] Reference Figure 3 Two rotating shafts are rotatably mounted on the lifting frame 7 , and both rotating shafts are fixedly connected to the cover plate 8 . The arrangement of the rotating shafts enables the cover plate 8 to rotate stably on the lifting frame 7 .

[0026] Reference Figure 4 Four second bearings are arranged on the cover plate 8 , and the inner rings of the four second bearings are fixedly connected to four fixing screws 14 . The arrangement of the second bearings enables the fixing screws 14 to rotate stably in the cover plate 8 .

[0027] Reference Figure 4 The cover plate 8 is provided with four groove rails, which are slidably connected to four fixing pins 15. The setting of the groove rails enables the fixing pins 15 to slide stably in the cover plate 8 without rotating.

[0028] In this embodiment, when it is necessary to cast hardware parts, open the blocking plate 9, add metal into the crucible 4, start the heating seat 3 to melt the metal, place the mold on one side of the bracket 1, and when the metal is melted, start the motor 5, which in turn drives the lifting screw 6 to rotate, and then drives the lifting frame 7 to rise, so that the cover plate 8 drives the crucible 4 to rise, and when the two gears 12 are engaged with the rack 11, they will roll on the two racks 11, so that the cover plate 8 drives the crucible 4 to rotate, open the valve on the discharge pipe 10, and the metal solution is poured into the mold to cast the hardware. When the crucible 4 needs to be repaired or replaced, when the crucible 4 is cooled, turn the four handles 13 to drive the four fixing screws 14 to rotate, so that the four fixing pins 15 slide and disengage from the fixing holes 16 on the crucible 4, and the crucible 4 can be removed. After the repair is completed, the crucible 4 can be installed by reverse operation.

[0029] Embodiment 2

[0030] Reference Figure 5 The difference between this embodiment and the first embodiment is that: a mounting groove 17 is provided on the bracket 1, a cylinder 18 is provided in the mounting groove 17, and a mold base 19 is fixedly installed on the telescopic rod of the cylinder 18. When pouring the molten metal, the mold can be placed on the mold base 19, and then the cylinder 18 is started to lift the mold to a suitable position to better pour the molten metal, and it can be applied to molds of different heights, and has a wide applicability.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision metal casting furnace, comprising a bracket (1), characterized in that: The support (1) is provided with a furnace body (2), a heating seat (3) is provided in the furnace body (2), a crucible (4) is provided on the heating seat (3), a motor (5) is provided on the support (1), an opening and closing discharge mechanism is provided on the support (1), the opening and closing discharge mechanism comprises a lifting screw (6), the lifting screw (6) is fixedly connected to the output shaft of the motor (5), a lifting frame (7) is slidably mounted on the support (1), the lifting frame (7) is threadedly connected to the lifting screw (6), a cover plate (8) is rotatably mounted on the lifting frame (7), a blocking plate (9) is provided on the cover plate (8), a discharge pipe (10) is provided on the cover plate (8), and a valve is provided on the discharge pipe (10), two racks (11) are fixedly mounted on the support (1), two gears (12) are fixedly mounted on the cover plate (8), the two gears (12) are meshed with the two racks (11), and a fixing mechanism is provided on the cover plate (8).

2. A precision metal casting furnace according to claim 1, characterized in that: The fixing mechanism comprises four rotating handles (13), four fixing screws (14) are rotatably mounted on the cover plate (8), the four rotating handles (13) are fixedly connected to the four fixing screws (14), the four fixing screws (14) are all threadedly connected to fixing pins (15), the crucible (4) is provided with four fixing holes (16), and the four fixing pins (15) and the four fixing holes (16) cooperate with each other.

3. A precision metal casting furnace according to claim 1, characterized in that: The bracket (1) is provided with a first bearing, and the inner ring of the first bearing is fixedly connected to the lifting screw (6).

4. A precision metal casting furnace according to claim 1, characterized in that: The bracket (1) is provided with two vertical rails, and the two vertical rails are slidably connected to the lifting frame (7).

5. The precision metal casting furnace according to claim 1, characterized in that: Two rotating shafts are rotatably mounted on the lifting frame (7), and both rotating shafts are fixedly connected to the cover plate (8).

6. A precision metal casting furnace according to claim 2, characterized in that: Four second bearings are arranged on the cover plate (8), and the inner rings of the four second bearings are fixedly connected to four fixing screws (14).

7. A precision metal casting furnace according to claim 2, characterized in that: The cover plate (8) is provided with four groove rails, and the four groove rails are slidably connected to four fixing pins (15).

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