Profiled material heating device

Abstract

The utility model provides a profiled bar heating device, comprising a heating control unit connected with a first deconcentrator and a second deconcentrator through leads; the first deconcentrator is connected with the first heating electrode assembly through a wire; the second deconcentrator is connected with the second heating electrode assembly through a wire; special-shaped steel is placed between the first heating pole assembly and the second heating pole assembly, so that the first heating pole assembly and the second heating pole assembly are connected, and electric energy is converted into heat energy to heat the special-shaped steel. According to the special-shaped steel heating device, the foldable fixing frame is arranged, and an electric heating mode is adopted, so that surface oxidation after the special-shaped steel is heated can be reduced, and heating of all types of special-shaped steel can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel heating, in particular to a heating device for special-shaped materials. Background Art

[0002] The patent with application number 201320242505.X discloses a top and bottom heating device for special-shaped materials, which includes a nozzle, a heating gun, a blower, a base side guard, and a cylinder. The nozzle is connected to the heating gun, which is located between the nozzle and the blower, the base side guard is located on the side of the blower, and the cylinder is located below the base side guard. The head of the nozzle is provided with a heat-conducting air hole. The patent with application number 201420344886.7 discloses a plastic profile heating device, which includes a material conveying pipe, a heating wire, a heating coil, and a hair dryer. The front end of the material conveying pipe is coiled with a heating wire, and the rear end is provided with a hair dryer. A heating coil is installed between the heating wire and the hair dryer. The heating coil is a two semicircular structure and is bolted on the material conveying pipe. A temperature sensor is provided in the middle of the material conveying pipe. It can be seen that the existing steel heating devices are all heated by hot air, which will cause the surface oxidation of the special-shaped steel (piece) to be more serious and the heating affected area to be larger, thereby causing the performance of the special-shaped steel (piece) to change, which does not meet the use requirements. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a special-shaped material heating device.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] A profile heating device, comprising:

[0006] A heating control unit is connected to the first splitter and the second splitter through a wire;

[0007] A first splitter connected to the first heating electrode assembly via a wire;

[0008] A second splitter is connected to the second heating electrode assembly through a wire;

[0009] The special-shaped steel is placed between the first heating pole assembly and the second heating pole assembly, so that the first heating pole assembly and the second heating pole assembly are connected to convert electrical energy into thermal energy to heat the special-shaped steel.

[0010] Preferably, the heating control unit comprises:

[0011] A microcontroller is connected to one end of a thyristor, the other end of which is connected to an input end of a transformer, and the thyristor is used to adjust the magnitude of an input transformer voltage according to a signal from the microcontroller; one side of an output end of the transformer is connected to a first divider via a first on-off switch, and the other side of an output end of the transformer is connected to a second divider via a second on-off switch.

[0012] Preferably, it also includes:

[0013] The current transformer is arranged at one side of the transformer output end and connected to the microcontroller, and is used to detect the magnitude of the output current.

[0014] Preferably, it also includes:

[0015] The temperature measuring device is connected to the microcontroller and is used to collect the real-time temperature of the heated special-shaped steel.

[0016] Preferably, the first heating electrode assembly comprises:

[0017] A plurality of fixed frames are provided, each of which is equipped with a graphite electrode, and an inlaid terminal is arranged on the graphite electrode; each of the fixed frames is movably connected through a rotating shaft, and each of the fixed frames can form various special shapes after rotation to fix the special-shaped steel.

[0018] Preferably, it also includes:

[0019] The spring pressure piece is installed on the frame of the fixed frame.

[0020] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0021] The utility model provides a special-shaped material heating device. Compared with the prior art, the utility model can not only reduce the surface oxidation after heating the special-shaped steel material, but also meet the heating requirements of all types of special-shaped steel materials by arranging a foldable fixed frame and using an electric heating method. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of a profile heating device provided by the utility model;

[0024] Figure 2The schematic diagram of the heating control unit provided by the utility model;

[0025] Figure 3 A schematic diagram of the splitter provided by the utility model;

[0026] Figure 4 A schematic diagram of a heating electrode assembly provided by the utility model; wherein: Figure 4 The upper figure in the figure shows a top view of the heating electrode assembly, and the lower figure shows a side view of the heating electrode assembly;

[0027] Explanation of symbols:

[0028] 201, power cord; 202, microcontroller; 203, thyristor; 204, transformer; 205, current transformer; 206, on-off switch; 207, output terminal; 301, junction box; 302, terminal; 401, graphite electrode; 402, embedded terminal; 403, rotating shaft; 404, fixed frame; 405, spring pressure piece. DETAILED DESCRIPTION

[0029] 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.

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0032] See also Figure 1-4 , a profile heating device, comprising: a heating control unit, a first splitter, a second splitter and a heating electrode assembly;

[0033] The heating control unit is connected to the first splitter and the second splitter through a wire; the first splitter is connected to the first heating pole assembly through a wire; the second splitter is connected to the second heating pole assembly through a wire; the first heating pole assembly and the second heating pole assembly are used to place the special-shaped steel material between them, so that the first heating pole assembly and the second heating pole assembly are connected to convert electrical energy into thermal energy to heat the special-shaped steel material.

[0034] The current transformer 205 is arranged at one side of the transformer output end and connected to the microcontroller 202, and is used to detect the magnitude of the output current. When the current is too large, the microcontroller 202 issues an alarm. The temperature measuring device is connected to the microcontroller 202 and is used to collect the real-time temperature of the heated special-shaped steel. When the real-time temperature reaches the preset requirement, the power supply is cut off.

[0035] Furthermore, the heating control unit comprises:

[0036] The microcontroller 202 is connected to one end of the thyristor 203, and the other end of the thyristor 203 is connected to the input end of the transformer. The thyristor 203 is used to adjust the magnitude of the input transformer voltage according to the signal of the microcontroller 202; one side of the transformer output end is connected to the first divider through the first on-off switch, and the other side of the transformer output end is connected to the second divider through the second on-off switch.

[0037] In this embodiment, the first heating electrode assembly includes:

[0038] A plurality of fixed frames 404 are provided, each of which is provided with a graphite electrode 401, and an inlaid terminal 402 is provided on the graphite electrode 401; each of the fixed frames 404 is movably connected through a rotating shaft 403, and each of the fixed frames 404 can form various special shapes after rotation to fix the special-shaped steel. A spring pressing sheet 405 is provided on the frame of the fixed frame 404.

[0039] The profile heating device of the present invention is further described below in conjunction with specific embodiments:

[0040] Transformer 204 is used to convert the power frequency 380V voltage into low voltage and high current to heat the profiled material. Different selection switches of the splitter are used to switch on and off the corresponding heating electrodes to achieve full body heating or surface heating of the profiled steel material (part), thereby achieving different process heating methods. Figure 1-2 It is composed of ① a heating control unit integrated (the heating control unit is integrated into a box by a microcontroller 202, a thyristor 203 component, a transformer 204, and a current transformer 205), ② a splitter and connecting wires, ③ a heating electrode component, and ④ a temperature measuring device.

[0041] ① The heating control unit is integrated and mainly includes a microcontroller 202, a thyristor 203 component, a transformer 204, and a current transformer 205. Figure 2 , 380V power supply terminals and output terminals are reserved on the outside, the microcontroller 202 in the integrated box reserves the temperature measuring device wiring signal terminals, and an on-off switch 206 is installed at the corresponding position of the output terminal to switch the corresponding output terminal 207 on and off.

[0042] The microcontroller 202 mainly sets the temperature at which the steel plate needs to be heated and detects the actual temperature of the steel plate, and controls the output power of the thyristor 203 according to the actual temperature and the output current. The temperature measurement unit module has the function of measuring and verifying the temperature, and the temperature measurement unit module is connected to the temperature measurement device through a wire. Its internal current detection and verification module, the current detection module and the current transformer 205 are connected through a wire. The output of the microcontroller 202 is connected to the control pole of the thyristor 203 through a wire to realize the control of the thyristor 203.

[0043] The thyristor 203 component mainly realizes power adjustment. The thyristor 203 component includes two groups of thyristors connected in parallel. After the thyristors 203 are connected in parallel, one side is connected to the 380V single-phase power supply line, and the other side is connected to the primary side of the transformer 204. Its control pole is connected to the microcontroller 202 through a wire to realize signal transmission, so that the microcontroller 202 controls the thyristor 203.

[0044] Transformer 204 mainly realizes power transmission, converts the power frequency 380V voltage power into low voltage and high current power for transmission, its primary side is connected to one side of the thyristor 203 component through a cable, the other side of the primary side of transformer 204 is directly connected to the power supply side, one side of the secondary side of transformer 204 is connected to the corresponding output terminal through a first on-off switch, and the other side of the secondary side is connected to the corresponding output terminal through a second on-off switch, so as to realize power transmission.

[0045] The current transformer 205 mainly detects the output current and feeds the current value back to the microcontroller 202 to realize the current signal closed-loop control. It is connected to the microcontroller 202 module with a shielded signal line.

[0046] ② The splitter and connecting wires are mainly used to connect and disconnect the integrated output terminals of the heating control unit and the heating electrode components. It includes a splitter and wires. The splitter structure is as follows: Figure 3 , which includes a terminal 302, an on-off switch 206, and a junction box 301. The terminal 302 is connected to the graphite electrode block of the heating component with a wire; the on-off switch switches the corresponding terminal current; and the junction box 301 is connected to the output terminal integrated with the heating control unit with a wire.

[0047] ③ The heating electrode assembly is mainly used to contact and heat the irregularly shaped steel (parts) to be heated. It can be bent according to the shape of the irregularly shaped steel (parts) and pressed tightly against the irregularly shaped steel (parts) with a spring pressure sheet. Figure 4, which includes a graphite electrode 401, an embedded terminal 402, a rotating shaft 403, a fixed frame 404, and a spring pressure piece 405. The graphite electrode 401 is mainly used for direct contact with and electric heating of special-shaped steel materials (pieces), and is installed on the fixed frame 404; the embedded terminal 402 is connected to the wire of the splitter; the rotating shaft 403 can make the fixed frame 404 rotate, and the heating electrode assembly can form various special shapes after rotation; the fixed frame 404 realizes the fixing function of the graphite electrode 401; the spring pressure piece 405 is installed on the frame of the fixed frame 404 to realize the compression of the fixed frame 404.

[0048] ④ The temperature measuring device mainly measures the temperature of the heated steel plate in real time and transmits the actual temperature to the microcontroller 202 to achieve closed-loop temperature control. It is connected to the temperature measuring module of the microcontroller 202 with a shielded signal line.

[0049] The specific heating method and steps taking angle steel as an example are as follows:

[0050] 1. Place the heating electrode assembly according to the angle steel ( Figure 1 ,⑤) The shape is pressed and fixed on the angle steel to be heated by a spring pressure plate, such as Figure 1 , ensuring that the angle steel and graphite electrode are in full contact with no gaps.

[0051] 2. The power connection terminal of the integrated box of the heating control unit is connected to the 380V power supply, and the output terminal is connected to the heating electrode assembly through the splitter and connecting wires.

[0052] 3. The temperature measuring device is connected to the microcontroller temperature measuring module.

[0053] 4. Turn on the first on-off switch and the second on-off switch. According to the heating process requirements, turn on the corresponding on-off switch of the divider to connect the corresponding graphite electrode plate.

[0054] 5. Set the required heating temperature on the microcontroller and turn on the run button to start heating.

[0055] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0056] The utility model can not only reduce the surface oxidation after heating the special-shaped steel material, but also meet the heating requirements of all types of special-shaped steel materials by arranging a foldable fixed frame and using an electric heating method.

[0057] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A profile heating device, characterized in that: include: A heating control unit is connected to the first splitter and the second splitter through a wire; A first splitter connected to the first heating electrode assembly via a wire; A second splitter is connected to the second heating electrode assembly through a wire; The special-shaped steel is placed between the first heating pole assembly and the second heating pole assembly, so that the first heating pole assembly and the second heating pole assembly are connected to convert electrical energy into thermal energy to heat the special-shaped steel.

2. A profile heating device according to claim 1, characterized in that: The heating control unit comprises: A microcontroller is connected to one end of a thyristor, the other end of which is connected to an input end of a transformer, and the thyristor is used to adjust the magnitude of an input transformer voltage according to a signal from the microcontroller; one side of an output end of the transformer is connected to a first divider via a first on-off switch, and the other side of an output end of the transformer is connected to a second divider via a second on-off switch.

3. A profile heating device as claimed in claim 2, characterized in that: Also includes: The current transformer is arranged at one side of the transformer output end and connected to the microcontroller, and is used to detect the magnitude of the output current.

4. A profile heating device as claimed in claim 3, characterized in that: Also includes: The temperature measuring device is connected to the microcontroller and is used to collect the real-time temperature of the heated special-shaped steel.

5. The profile heating device according to claim 1, characterized in that: The first heating electrode assembly comprises: A plurality of fixed frames are provided, each of which is equipped with a graphite electrode, and an inlaid terminal is arranged on the graphite electrode; each of the fixed frames is movably connected through a rotating shaft, and each fixed frame is used to fix the special-shaped steel material after rotation.

6. A profile heating device as claimed in claim 5, characterized in that: Also includes: The spring pressure piece is installed on the frame of the fixed frame.

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