Full-automatic precise temperature control resistance furnace

Abstract

The utility model discloses a full-automatic precise temperature control resistance furnace, and relates to the technical field of electrothermal furnaces. Two supporting columns are fixedly connected to one side of the top end of the base, first rotating seats are fixedly connected to the top ends of the supporting columns, a lifting table is rotationally connected between the two first rotating seats, an outer furnace is fixedly connected to one side of the lifting table, an inner furnace is installed in the outer furnace, and a plurality of air inducing pipes are evenly installed at the top end of the inner furnace along the circumferential side face. The bottom end of the air inducing pipe communicates with the interior of the outer furnace, an outlet of the other end of the air inducing pipe faces the interior of the inner furnace, an air blower is installed on one side of the bottom of the outer furnace, lifting mechanisms are installed between the two sides of the lifting table and the base, and a temperature control piece is installed on one side of one supporting column. Discharging is conducted through the lifting mechanism, the resistance furnace is in a supporting state during electric melting, oxygen is increased and heat convection is accelerated in the electric melting process through the air inducing pipe, and the production efficiency is improved by reducing the operation and maintenance frequency and the hot melting speed.

Description

Technical Field

[0001] This utility model belongs to the field of electric furnace technology, and specifically relates to a fully automatic, precise temperature-controlled resistance furnace. Background Technology

[0002] Heat treatment furnaces refer to electric or fuel-fired furnaces used for heat treatment of furnace materials. According to the heat source, they are divided into coal-fired furnaces, oil-fired furnaces, and gas-fired furnaces that use fuel combustion as the heat source, and resistance furnaces and electrode furnaces that use electric energy as the heat source. They are all used for hot melting of metal workpieces. With the development of technology, heat treatment furnaces now mostly use electric energy as the hot melting energy source.

[0003] The patent specification with publication number CN219810258U discloses an electric arc furnace tilting device, which includes an electric arc furnace body. A rotating shaft is fixedly provided on the outer wall of the electric arc furnace body at both the front and rear ends. A fixed seat is provided at the lower end of the electric arc furnace body. A protective plate is provided on the upper surface of the fixed seat at both the front and rear ends. A bearing is fixedly provided on the outer wall of the protective plate at the upper end. The rotating shaft is rotatably installed with the bearing. A fixed plate is provided on the outer wall of the protective plate. A transmission motor is provided on the upper surface of the fixed plate. A spur gear is provided at one end of both the transmission motor and the rotating shaft.

[0004] This type of electric arc furnace is installed between two protective plates on a fixed base and rotated by a drive motor. A connecting column with a built-in spring is installed between one side of the electric arc furnace and the fixed base. The tension of the spring disperses the pressure on the gears when the drive motor is in motion. However, the drawback of this technical solution is that the pressure dispersion of the gears and rotating shafts by the tension is limited to a short time during unloading. However, the furnace body is in a suspended state for a long time, which causes the rotating shafts connected to both sides to be under high pressure for a long time. The continuous high pressure will damage the smoothness of the rotation of the rotating shafts, resulting in frequent maintenance of the rotating shafts during the use of the electric furnace and reducing the production efficiency of the electric furnace.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] The purpose of this utility model is to provide a fully automatic, precise temperature-controlled resistance furnace. The technical problem to be solved is as follows: Existing resistance furnaces are suspended in the air for a long time during use, which leads to frequent maintenance of the rotating shaft and reduces production efficiency.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A fully automatic precision temperature-controlled resistance furnace includes a base. Two support columns are fixedly connected to one side of the top of the base. A rotating seat is fixedly connected to the top of each support column. A lifting platform is rotatably connected between the two rotating seats. An outer furnace is fixedly connected to one side of the lifting platform. An inner furnace is installed inside the outer furnace. Multiple air ducts are evenly installed along the circumference of the top of the inner furnace. The bottom end of each air duct communicates with the interior of the outer furnace, and the outlet of the other end faces the interior of the inner furnace. A blower is installed on one side of the bottom of the outer furnace to introduce air into the air ducts. Lifting mechanisms are installed between the lifting platform and the base on both sides to assist in unloading material from the inner furnace. A temperature control element is installed on one side of each support column to regulate the temperature of the inner furnace.

[0009] As a further embodiment of this utility model: the temperature control component includes a temperature control box fixedly connected to the support column, a temperature adjustment knob is installed on one side of the temperature control box, a temperature adjustment dial is provided on the top of the temperature control box, a pointer is electrically connected to the temperature adjustment knob, an on / off switch is provided on one side of the temperature control box, a temperature sensor is built into the inner furnace, and the temperature sensor is electrically connected to the temperature control component.

[0010] As a further embodiment of this utility model: the lifting mechanism includes a second rotating seat that is fixedly connected to the base, a cylinder that is rotatably connected to the top of the second rotating seat, a third rotating seat that is rotatably connected to the top of the cylinder extension rod, and the top of the third rotating seat that is fixedly connected to the bottom surface of the lifting platform.

[0011] As a further embodiment of this utility model: the bottom surface of the outer furnace is in contact with the top surface of the base, the horizontal distance between the top of the cylinder and the support column is less than the horizontal distance between the bottom of the cylinder and the support column, and the top of the lifting platform, the outer furnace and the inner furnace are all provided with unloading ports, and the unloading ports are connected in sequence.

[0012] As a further embodiment of this utility model: the top of the inner furnace is fixedly connected to the top surface of the outer furnace, the bottom of the inner furnace is evenly wound with heating wires along its circumferential side, and an inner cavity is provided between the outer furnace and the inner furnace.

[0013] As a further embodiment of this utility model: an air inlet pipe is provided on one side of the blower, the inner side of the air inlet pipe is connected to the inner cavity, the air duct is "V" shaped, and a retaining ring is provided at the end near the outer furnace, the retaining ring is engaged with the top of the inner furnace, and the end of the air duct near the retaining ring is connected to the inner cavity.

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

[0015] 1. By installing two support columns on one side of the base top and rotatably connecting the lifting platform between the tops of the two support columns, one side of the lifting platform is fixedly connected to the outer furnace of the resistance furnace, and the inner furnace is installed inside the outer furnace. At the same time, a temperature control component is installed on one side of the support columns, and two lifting mechanisms are installed between the base and the lifting platform. When the metal is melted at a controlled temperature by the temperature control component, the base supports the resistance furnace. At this time, all rotating structures used for unloading are in an idle state. After melting is completed, the lifting mechanism tilts the lifting platform together with the inner and outer furnaces to the side to cooperate with the unloading port for unloading. Its technical advantage is that the resistance furnace is placed in a suspended state only during unloading, which greatly reduces the load pressure on each rotating seat used for unloading, thereby reducing the frequency of maintenance and indirectly improving production efficiency.

[0016] 2. By setting an inner cavity between the inner furnace and the outer furnace, and installing a blower on the outside of the outer furnace that is connected to the inner cavity, and evenly installing multiple air ducts along the circumference of the top of the inner furnace, when the blower blows oxygen-containing air into the inner cavity, the air ducts can introduce the oxygen-containing air into the inner furnace, thereby improving the thermal convection efficiency during the melting process in the inner furnace. In addition, the oxygen in the blown air can also accelerate the metal melting efficiency, thereby improving the production efficiency of the electric furnace by reducing the melting time. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Enlarged detail view of point A in the middle;

[0020] Figure 3 This is a diagram showing the unloading state of this utility model;

[0021] Figure 4 This is a utility model Figure 3 Enlarged detail view of point B in the middle;

[0022] Figure 5 This is a partial cross-sectional view of the present invention;

[0023] Figure 6 This is a utility model Figure 5 A magnified view of the details at point C.

[0024] In the diagram: 1. Base; 2. Support column; 3. Rotating seat one; 4. Lifting platform; 5. Outer furnace; 6. Inner furnace; 7. Exhaust pipe; 8. Blower; 9. Lifting mechanism; 91. Rotating seat two; 92. Cylinder; 93. Rotating seat three; 10. Temperature control component; 101. Temperature control box; 102. Temperature adjustment knob; 103. Temperature adjustment dial; 104. Pointer; 105. On / off switch; 11. Discharge port; 12. Heating wire; 13. Inner cavity; 14. Air inlet pipe; 15. Snap ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 1 to 6 As shown, a fully automatic precision temperature-controlled resistance furnace includes a base 1. Two support columns 2 are fixedly connected to one side of the top of the base 1. Rotary seats 3 are fixedly connected to the top of each of the two support columns 2. A lifting platform 4 is rotatably connected between the two rotating seats 3. An outer furnace 5 is fixedly connected to the inner side of the lifting platform 4. An inner furnace 6 is installed inside the outer furnace 5. Eight air ducts 7 are evenly installed along the circumference of the top of the inner furnace 6. The bottom end of the air duct 7 communicates with the interior of the outer furnace 5, and the outlet of the other end faces the interior of the inner furnace 6. A blower 8 is installed on one side of the outer furnace 5 to supply air to each air duct 7. Lifting mechanisms 9 are installed between the lifting platform 4 and the base 1 on both sides to assist in unloading material from the inner furnace 6. A temperature control element 10 is installed on one side of one of the support columns 2 to control the temperature of the inner furnace 6.

[0027] It should be noted that the temperature control element 10 (see...) Figure 2 The device includes a temperature control box 101 fixedly connected to the support column 2. A temperature control knob 102 is installed on one side of the temperature control box 101, and a temperature control dial 103 is set on the top of the temperature control box 101. The temperature control knob 102 is electrically connected to a pointer 104. An on / off switch 105 is set on one side of the temperature control box 101. The inner furnace 6 has a built-in temperature sensor, which is electrically connected to the temperature control component 10. The operator can precisely adjust the electric heating temperature of the inner furnace 6 by rotating the temperature control knob 102 and according to the indication of the temperature control dial 103 by the pointer 104, so as to achieve a suitable temperature that matches the melting point of the molten metal and improve the electric heating efficiency.

[0028] like Figure 1 , Figure 3 and Figure 4As shown, the lifting mechanism 9 includes a rotating seat 2 91 fixedly connected to the base 1, a cylinder 92 rotatably connected to the top of the rotating seat 2 91, a rotating seat 3 93 rotatably connected to the top of the telescopic rod of the cylinder 92, and the top of the rotating seat 3 93 fixedly connected to the bottom surface of the lifting platform 4.

[0029] The bottom surface of the outer furnace 5 is in contact with the top of the base 1, and the horizontal distance between the top of the cylinder 92 and the support column 2 is less than the horizontal distance between the bottom of the cylinder 92 and the support column 2.

[0030] The top of the lifting platform 4, the outer furnace 5, and the inner furnace 6 are all equipped with unloading ports 11. Each unloading port 11 is connected to the other and is located in the middle of the two support columns 2.

[0031] It should be noted that, since the bottom of the outer furnace 5 is supported by the base 1 when the lifting mechanism 9 is not lifted, the lifting mechanism 9 is idle during the metal smelting process of the temperature control component 10, so it will not cause pressure loss to the rotating parts, thereby reducing the maintenance frequency of the rotating parts and indirectly improving production efficiency.

[0032] When smelting is complete and unloading is required, since the initial state of cylinder 92 of the lifting mechanism 9 is at an angle close to the unloading port 11, it can quickly push the telescopic rod to rotate the lifting platform 4 after activation, avoiding the rigid state when vertical. After the telescopic rod of cylinder 92 is extended, the lifting platform 4 rotates to the unloading state by relying on the rotating seats 3 on both sides (see...). Figure 3 Then the molten metal is discharged through each discharge port 11.

[0033] like Figure 5 and Figure 6 As shown, the top of the inner furnace 6 is fixedly connected to the outer furnace 5, and the bottom of the inner furnace 6 is evenly wound with heating wires 12 along the circumferential side. An inner cavity 13 is provided between the outer furnace 5 and the inner furnace 6.

[0034] An air inlet pipe 14 is provided on one side of the blower 8. The inner side of the air inlet pipe 14 is connected to the inner cavity 13. The exhaust pipe 7 is "V" shaped and a retaining ring 15 is provided at the end near the outer furnace 5. The retaining ring 15 is engaged with the top of the inner furnace 6. The end of the exhaust pipe 7 near the retaining ring 15 is connected to the inner cavity 13.

[0035] It should be noted that when the inner furnace 6 is in a horizontal melting state, the blower 8 blows air into the inner cavity 13, and the external oxygen brought in enters the inner furnace 6 along the bent structure of each air duct 7, adding oxygen to the hot-melt metal to improve the hot-melt efficiency. At the same time, blowing air can also accelerate heat convection, further improving the hot-melt efficiency.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A fully automatic precision temperature-controlled resistance furnace, comprising a base (1), characterized in that, Two support columns (2) are fixedly connected to one side of the top of the base (1). A rotating seat (3) is fixedly connected to the top of the support column (2). A lifting platform (4) is rotatably connected between the two rotating seats (3). An outer furnace (5) is fixedly connected to one side of the lifting platform (4). An inner furnace (6) is installed inside the outer furnace (5). Multiple air ducts (7) are evenly installed along the circumferential side of the top of the inner furnace (6). The bottom end of the air duct (7) is connected to the interior of the outer furnace (5), and the outlet direction of the other end faces the interior of the inner furnace (6). A blower (8) is installed on one side of the bottom of the outer furnace (5). The blower (8) is used to introduce air into the air duct (7). Lifting mechanisms (9) are installed between the two sides of the lifting platform (4) and the base (1). The lifting mechanisms (9) are used to assist the unloading of the inner furnace (6). A temperature control element (10) is installed on one side of one of the support columns (2). The temperature control element (10) is used to regulate the temperature of the inner furnace (6).

2. The fully automatic precision temperature-controlled resistance furnace according to claim 1, characterized in that, The temperature control component (10) includes a temperature control box (101) fixedly connected to the support column (2). A temperature adjustment knob (102) is installed on one side of the temperature control box (101). A temperature adjustment dial (103) is provided on the top of the temperature control box (101). A pointer (104) is electrically connected to the temperature adjustment knob (102). An on / off switch (105) is provided on one side of the temperature control box (101). A temperature sensor is built into the inner furnace (6). The temperature sensor is electrically connected to the temperature control component (10).

3. The fully automatic precision temperature-controlled resistance furnace according to claim 1, characterized in that, The lifting mechanism (9) includes a rotating seat two (91) fixedly connected to the base (1), a cylinder (92) is rotatably connected to the top of the rotating seat two (91), a rotating seat three (93) is rotatably connected to the top of the telescopic rod of the cylinder (92), and the top of the rotating seat three (93) is fixedly connected to the bottom surface of the lifting platform (4).

4. The fully automatic precision temperature-controlled resistance furnace according to claim 3, characterized in that, The bottom surface of the outer furnace (5) is in contact with the top surface of the base (1). The horizontal distance between the top of the cylinder (92) and the support column (2) is less than the horizontal distance between the bottom of the cylinder (92) and the support column (2). The top of the lifting platform (4), the outer furnace (5) and the inner furnace (6) are all provided with unloading ports (11), and each unloading port (11) is connected in sequence.

5. The fully automatic precision temperature-controlled resistance furnace according to claim 1, characterized in that, The top of the inner furnace (6) is fixedly connected to the top surface of the outer furnace (5), and the bottom of the inner furnace (6) is evenly wrapped with heating wires (12) along the circumferential side. An inner cavity (13) is provided between the outer furnace (5) and the inner furnace (6).

6. The fully automatic precision temperature-controlled resistance furnace according to claim 5, characterized in that, The blower (8) is provided with an air inlet pipe (14) on one side. The inner side of the air inlet pipe (14) is connected to the inner cavity (13). The exhaust pipe (7) is "V" shaped and a retaining ring (15) is provided at one end near the outer furnace (5). The retaining ring (15) is engaged with the top of the inner furnace (6). The end of the exhaust pipe (7) near the retaining ring (15) is connected to the inner cavity (13).

Images