Melting furnace clamp capable of rapidly whitening

By designing a clamping frame and a flip-over perforated plate structure, the problem of crucible shaking during heating was solved, achieving stable clamping and automatic feeding of the crucible, thus improving the operating efficiency and safety of the melting furnace.

CN224188966UActive Publication Date: 2026-05-01QINGDAO JINNUO MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO JINNUO MASCH CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing rapid white cast iron melting furnace fixtures are prone to crucible shaking during use, leading to unstable heating.

Method used

A clamping structure was designed, comprising a vacuum chamber, a furnace body, a clamping frame, a spring, a connecting frame, a clamping column, and a clamping ring. The connecting frame slides due to the elastic force of the spring, and the clamping column and clamping ring engage. Combined with the movement of the pressure rod, the crucible is stably clamped. Automatic feeding is achieved through a flipping orifice plate and a feeding motor.

Benefits of technology

It achieves stable clamping and automatic feeding of the crucible, avoids the crucible shaking during heating, and improves heating stability and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224188966U_ABST
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Abstract

The utility model belongs to the technical field of melting furnaces, and particularly relates to a melting furnace clamp capable of quickly whitening, which comprises a vacuum chamber, a furnace body is screwed on the inner wall of the vacuum chamber, a medium-frequency heating device is arranged on the inner wall of the furnace body, a crucible penetrates through the inside of the furnace body, and a clamping frame is fixedly connected to the top end of the furnace body. The inner wall of the clamping frame is fixedly connected with a spring, one end of the spring is fixedly connected with a connecting frame, one end of the connecting frame is fixedly connected with a clamping column, the outer wall of the clamping column is embedded with a clamping ring fixedly connected with the outer wall of the crucible, and by arranging the clamping column, the spring drives the connecting frame to slide through the elasticity of the spring; the connecting frame slides to drive the clamping column to be embedded into the clamping groove in the outer wall of the clamping ring, then the pressing rod moves to drive the connecting frame to overcome the elastic force of the spring to reversely slide through the guide groove, the connecting frame slides to drive the clamping column to be away from the clamping groove, a worker can conveniently and smoothly take out the crucible, and stable clamping operation on the crucible is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of melting furnace technology, and in particular relates to a melting furnace fixture for rapid white casting. Background Technology

[0002] Eutectic white cast iron is an alloy formed when two groups of elements or compounds are completely miscible in the liquid state and partially miscible in the solid state, undergoing a eutectic reaction. Cast iron is a general term for iron-carbon alloys with a carbon content greater than 2.11%. Eutectic white cast iron has a carbon content of 4.3%. When this alloy is cooled from the liquid state to 1148℃, a eutectic reaction occurs, transforming it entirely into high-temperature ledeburite (Le). At room temperature, eutectic white cast iron retains the morphological characteristics of the eutectic transformation products.

[0003] For example, patent CN218937066U discloses a furnace cleaning device and a furnace system. The furnace system of this utility model includes: a furnace, comprising a furnace body and a flue communicating with the furnace body, the flue extending along a first direction; a purifier, the inlet of which is connected to the flue; and a furnace cleaning device, comprising a first cleaning rod and a first moving assembly. The first cleaning rod includes a first rod body and a first cleaning head. The first rod body extends along the first direction, and its first end can extend into the flue. The first cleaning head is located on the first end of the first rod body and extends along the first direction. A first protrusion is provided on the periphery of the first cleaning head. The first moving assembly is connected to the second end of the first rod body and can drive the first rod body to move along the first direction. Therefore, the furnace system of this utility model has the advantage of less dust in the flue of the furnace, allowing the furnace to operate normally.

[0004] Existing rapid white cast iron forming furnace clamps involve placing the crucible directly into the furnace body, which can easily cause the crucible to wobble during heating. Therefore, we propose a rapid white cast iron forming furnace clamp. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a rapid white casting furnace clamp that avoids the problem of crucible shaking during heating.

[0006] In view of this, the present invention provides a melting furnace fixture for rapid white casting, including a vacuum chamber, a furnace body screwed onto the inner wall of the vacuum chamber, a medium-frequency heating device installed on the inner wall of the furnace body, a crucible penetrating inside the furnace body, a clamping frame fixedly connected to the top of the furnace body, a spring fixedly connected to the inner wall of the clamping frame, a connecting frame fixedly connected to one end of the spring, a clamping column fixedly connected to one end of the connecting frame, a clamping ring fixedly connected to the outer wall of the clamping column, a clamping groove provided at the connection between the clamping ring and the clamping column, a guide groove provided on the outer wall of the connecting frame, and a pressure rod movably connected to the outer wall of the guide groove and sliding vertically with the top of the clamping frame.

[0007] Based on the above structure, the spring drives the connecting frame to slide through its own elastic force. The sliding of the connecting frame causes the clamping column to engage with the clamping groove on the outer wall of the clamping ring. Then, the movement of the pressure rod drives the connecting frame to slide in the opposite direction against the elastic force of the spring through the guide groove. This causes the connecting frame to slide and move the clamping column away from the clamping groove, making it easier for the operator to remove the crucible smoothly and achieving a stable clamping operation on the crucible.

[0008] Preferably, the vacuum chamber has a C-shaped cross-section, and the central axis of the vacuum chamber coincides with the center of the furnace body. In this embodiment, by setting the vacuum chamber with a C-shaped cross-section, collisions between the furnace body and the vacuum chamber are avoided when the furnace body rotates.

[0009] Preferably, the connecting frame is provided in four sets, and the four sets of connecting frames are distributed in a circular shape with equal angles about the center of the clamping frame. In this embodiment, by providing four sets of connecting frames, it is beneficial for the spring to drive the connecting frame to slide through its own elastic force. The sliding of the connecting frame causes the clamping column to engage with the clamping groove on the outer wall of the clamping ring, thereby realizing a stable clamping operation on the crucible.

[0010] Preferably, the guide groove is inclined. In this embodiment, the movement of the pressure rod through the guide groove drives the connecting frame to overcome the spring force and slide in the opposite direction, so that the sliding of the connecting frame drives the clamping column away from the clamping groove, making it easier for the staff to take out the crucible smoothly.

[0011] Preferably, the clamping ring has an inverted "L" shape in cross-section. In this embodiment, this facilitates the worker placing the crucible into the furnace body using the clamping ring.

[0012] Preferably, a vacuum device is fixedly connected to the outer wall of the vacuum chamber, and a feeding motor is fixedly connected to the end of the vacuum chamber away from the vacuum device. A screw is fixedly connected to the output end of the feeding motor, and a slider is threadedly connected to the outer wall of the screw. A rotating perforated plate is movably connected to the outer wall of the slider, and a pin is fixedly connected to one end of the rotating perforated plate, which is screwed to the inner wall of the vacuum chamber. The pin is fixedly connected to the outer wall of the furnace body. In this embodiment, the feeding motor drives the slider to slide through the screw, and the sliding of the slider drives the pin to rotate through the rotating perforated plate. The rotation of the pin drives the crucible inside the furnace body to rotate, pouring out the molten white cast iron, thus realizing the automatic feeding operation of white cast iron.

[0013] Preferably, the rotation center of the flip-over perforated plate is on the same straight line as the center of the furnace body. In this embodiment, the slider slides through the flip-over perforated plate to drive the pin shaft to rotate, and the rotation of the pin shaft drives the crucible inside the furnace body to rotate, pouring out the molten white cast iron.

[0014] The beneficial effects of this utility model are:

[0015] 1. This rapid white casting melting furnace fixture, by setting a clamping column, uses a spring to drive the connecting frame to slide through its own elastic force. The sliding of the connecting frame causes the clamping column to engage with the clamping groove on the outer wall of the clamping ring. Then, the movement of the pressure rod drives the connecting frame to slide in the opposite direction against the elastic force of the spring through the guide groove, so that the sliding of the connecting frame causes the clamping column to move away from the clamping groove, making it easier for the operator to remove the crucible smoothly and achieving a stable clamping operation on the crucible.

[0016] 2. This rapid white cast iron melting furnace fixture, by setting a tilting perforated plate, allows the feeding motor to drive the slider to slide through the screw. The sliding slider drives the pin to rotate through the tilting perforated plate. The rotation of the pin drives the crucible inside the furnace to rotate, pouring out the molten white cast iron, thus realizing the automatic feeding operation of white cast iron. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the furnace body of this utility model;

[0020] Figure 4 This is a cross-sectional view of the clamping frame of this utility model.

[0021] The markings in the diagram are as follows:

[0022] 1. Vacuum chamber; 2. Furnace body; 3. Medium frequency heating equipment; 4. Crucible; 5. Clamping frame; 6. Spring; 7. Connecting frame; 8. Clamping column; 9. Clamping ring; 10. Clamping groove; 11. Guide groove; 12. Pressure rod; 13. Vacuum equipment; 14. Feeding motor; 15. Screw; 16. Slider; 17. Tilting plate; 18. Pin. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] This application discloses a rapid white casting melting furnace fixture, including a vacuum chamber 1, a furnace body 2 screwed to the inner wall of the vacuum chamber 1, a medium-frequency heating device 3 installed on the inner wall of the furnace body 2, a crucible 4 penetrating inside the furnace body 2, a clamping frame 5 fixedly connected to the top of the furnace body 2, a spring 6 fixedly connected to the inner wall of the clamping frame 5, a connecting frame 7 fixedly connected to one end of the spring 6, a clamping column 8 fixedly connected to one end of the connecting frame 7, a clamping ring 9 fixedly connected to the outer wall of the clamping column 8, a clamping groove 10 provided at the connection between the clamping ring 9 and the clamping column 8, a guide groove 11 provided on the outer wall of the connecting frame 7, and a pressure rod 12 movably connected to the outer wall of the guide groove 11 and vertically sliding with the top of the clamping frame 5.

[0026] Based on the above structure, the spring 6 drives the connecting frame 7 to slide through its own elastic force. The sliding of the connecting frame 7 causes the clamping column 8 to engage with the clamping groove 10 on the outer wall of the clamping ring 9. Then, the pressure rod 12 moves through the guide groove 11 to drive the connecting frame 7 to slide in the opposite direction against the elastic force of the spring 6, so that the sliding of the connecting frame 7 causes the clamping column 8 to move away from the clamping groove 10, making it easier for the operator to take out the crucible 4 smoothly and achieve a stable clamping operation on the crucible 4.

[0027] In one embodiment, the cross-section of the vacuum chamber 1 is "C" shaped, and the central axis of the vacuum chamber 1 coincides with the center of the furnace body 2.

[0028] In this embodiment, by setting a vacuum chamber 1 with a "C" shaped cross-section, collisions between the furnace body 2 and the vacuum chamber 1 are avoided when the furnace body 2 rotates.

[0029] In one embodiment, four sets of connecting frames 7 are provided, and the four sets of connecting frames 7 are arranged in a circular distribution at equal angles about the center of the clamping frame 5.

[0030] In this embodiment, by setting four sets of connecting frames 7, the spring 6 can drive the connecting frame 7 to slide through its own elastic force. The sliding of the connecting frame 7 causes the clamping column 8 to engage with the clamping groove 10 on the outer wall of the clamping ring 9, thereby achieving a stable clamping operation on the crucible 4.

[0031] In one embodiment, the guide groove 11 is inclined.

[0032] In this embodiment, the movement of the pressure rod 12 through the guide groove 11 drives the connecting frame 7 to overcome the elastic force of the spring 6 and slide in the opposite direction, so that the connecting frame 7 slides and drives the clamping column 8 away from the clamping groove 10, making it easier for the staff to take out the crucible 4 smoothly.

[0033] In one embodiment, the clamping ring 9 has an inverted "L" shaped cross-section.

[0034] In this embodiment, it is convenient for workers to place the crucible 4 into the furnace body 2 using the clamping ring 9.

[0035] In one embodiment, a vacuum device 13 is fixedly connected to the outer wall of the vacuum chamber 1, a feeding motor 14 is fixedly connected to the end of the vacuum chamber 1 away from the vacuum device 13, a screw 15 is fixedly connected to the output end of the feeding motor 14, a slider 16 is threadedly connected to the outer wall of the screw 15, a rotating perforated plate 17 is movably connected to the outer wall of the slider 16, a pin 18 is fixedly connected to one end of the rotating perforated plate 17 and screwed to the inner wall of the vacuum chamber 1, and the pin 18 is fixedly connected to the outer wall of the furnace body 2.

[0036] In this embodiment, the feeding motor 14 operates by driving the slider 16 to slide through the screw 15. The slider 16 slides through the flip plate 17 to drive the pin 18 to rotate. The rotation of the pin 18 drives the crucible 4 inside the furnace body 2 to rotate, pouring out the molten white cast iron, thus realizing the automatic feeding operation of white cast iron.

[0037] In one embodiment, the rotation center of the flip-over perforated plate 17 is on the same straight line as the center of the furnace body 2.

[0038] In this embodiment, the slider 16 slides through the flip plate 17 to drive the pin 18 to rotate, and the rotation of the pin 18 drives the crucible 4 inside the furnace body 2 to rotate, pouring out the molten white cast iron.

[0039] In this embodiment, the rapid white casting melting furnace fixture is used in the following way: First, the operator places the crucible 4 in the furnace body 2 through the clamping ring 9. Then, the spring 6 drives the connecting frame 7 to slide through its own elasticity. The sliding of the connecting frame 7 causes the clamping column 8 to engage with the clamping groove 10 on the outer wall of the clamping ring 9, thereby achieving a stable clamping operation on the crucible 4.

[0040] Next, the vacuum equipment 13 operates to evacuate the interior of the vacuum chamber 1 into a vacuum state, and the medium-frequency heating equipment 3 operates to generate eddy currents to heat the white cast iron raw material inside the crucible 4, heating the white cast iron raw material to a molten state, so that the alloy undergoes a eutectic reaction from liquid to high-temperature ledeburite, forming white cast iron.

[0041] Next, the feeding motor 14 operates by driving the slider 16 to slide through the screw 15. The slider 16 slides and drives the pin 18 to rotate through the flip plate 17. The rotation of the pin 18 drives the crucible 4 inside the furnace body 2 to rotate, pouring out the molten white cast iron, thus realizing the automatic feeding operation of white cast iron.

[0042] Finally, the staff presses the pressure rod 12. The movement of the pressure rod 12 drives the connecting frame 7 to slide in the opposite direction against the elastic force of the spring 6 through the guide groove 11. This causes the connecting frame 7 to slide and move the clamping column 8 away from the clamping groove 10, making it easier for the staff to take out the crucible 4 smoothly.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A melting furnace fixture for rapid white casting, characterized in that, The device includes a vacuum chamber (1), a furnace body (2) is screwed onto the inner wall of the vacuum chamber (1), a medium-frequency heating device (3) is installed on the inner wall of the furnace body (2), a crucible (4) runs through the interior of the furnace body (2), a clamping frame (5) is fixedly connected to the top of the furnace body (2), a spring (6) is fixedly connected to the inner wall of the clamping frame (5), a connecting frame (7) is fixedly connected to one end of the spring (6), a clamping column (8) is fixedly connected to one end of the connecting frame (7), a clamping ring (9) is fitted into the outer wall of the clamping column (8) and fixedly connected to the outer wall of the crucible (4), a clamping groove (10) is provided at the connection between the clamping ring (9) and the clamping column (8), a guide groove (11) is provided on the outer wall of the connecting frame (7), and a pressure rod (12) that slides vertically with the top of the clamping frame (5) is movably connected to the outer wall of the guide groove (11).

2. The rapid fluxed white furnace clamp of claim 1, wherein: The cross-section of the vacuum chamber (1) is "C" shaped, and the central axis of the vacuum chamber (1) coincides with the center of the furnace body (2).

3. The rapid fluxed white furnace clamp of claim 1, wherein: The connecting frame (7) is provided in four sets, and the four sets of connecting frames (7) are distributed in a circular manner with equal angles about the center of the clamping frame (5).

4. The rapid fluxed white furnace clamp of claim 1, wherein: The guide groove (11) is inclined.

5. The rapid fluxed white furnace clamp of claim 1, wherein: The clamping ring (9) has an inverted "L" shaped cross section.

6. The rapid white cast iron melting furnace fixture according to claim 1, characterized in that: Vacuum equipment (13) is fixedly connected to the outer wall of the vacuum chamber (1). A feeding motor (14) is fixedly connected to the end of the vacuum chamber (1) away from the vacuum equipment (13). A screw (15) is fixedly connected to the output end of the feeding motor (14). A slider (16) is threadedly connected to the outer wall of the screw (15). A rotating perforated plate (17) is movably connected to the outer wall of the slider (16). A pin (18) is fixedly connected to one end of the rotating perforated plate (17) and screwed to the inner wall of the vacuum chamber (1). The pin (18) is fixedly connected to the outer wall of the furnace body (2).

7. The rapid white cast iron melting furnace fixture according to claim 6, characterized in that: The rotation center of the flip plate (17) is on the same straight line as the center of the furnace body (2).

Citation Information

Patent Citations

  • Smelting furnace ash removal device and melting furnace system

    CN218937066U