Plate heating device

Abstract

The utility model provides a plate heating device, which comprises a heating control unit assembly connected with a heating pole assembly through a lead; the heating pole assembly is used for clamping the to-be-heated steel plate, so that the to-be-heated steel plate is continuously heated through current; and the temperature measuring device is connected with the heating control unit integration through a wire and is used for collecting temperature information of the steel plate to be heated and sending the temperature information to the heating control unit integration. According to the utility model, the steel plate to be heated is clamped by the heating pole assembly, so that the steel plate to be heated is continuously heated through current, and the surface oxidation phenomenon of the heated steel can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heating, in particular to a plate heating device. Background Art

[0002] Application No. 201420344886.7, a plastic profile heating device, including a material conveying pipe, a heating wire, a heating coil and a blower, the front end of the material conveying pipe is coiled with a heating wire, the rear end is provided with a blower, a heating coil is installed between the heating wire and the blower, the heating coil is two semicircular structures and is bolted on the material conveying pipe, and a temperature sensor is provided in the middle of the material conveying pipe. It can be seen that the existing steel heating devices are heated by hot air baking, which will cause serious oxidation on the surface of the plate, thereby causing changes in the performance of the plate, 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 plate heating device.

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

[0005] A plate heating device, comprising:

[0006] The heating control unit is integrated and connected to the heating pole assembly through a wire;

[0007] The heating electrode assembly is used to clamp the steel plate to be heated so that the steel plate to be heated is continuously heated by electric current;

[0008] The temperature measuring device is connected to the heating control unit through a wire, and is used to collect temperature information of the steel plate to be heated and send the temperature information to the heating control unit.

[0009] Preferably, the heating control unit is integrated and comprises:

[0010] A thyristor assembly consisting of two thyristors connected in parallel, one end of the thyristor assembly is connected to a 380V single-phase power line, and the other end of the thyristor assembly is connected to the input end of a transformer; the output end of the transformer is connected to the heating electrode assembly;

[0011] The microcontroller is connected to the control end of the thyristor component and is used to adjust the magnitude of the input transformer voltage.

[0012] Preferably, the heating electrode assembly comprises:

[0013] A first fixed frame, on which a first clamping cylinder is arranged, a first upper copper electrode plate is arranged at one end of the first clamping cylinder, a first lower copper electrode plate is arranged at the other end of the first clamping cylinder, the first upper copper electrode plate and the first lower copper electrode plate are connected to the output end of the transformer, and are used for clamping one side of the steel plate to be heated under the action of the first clamping cylinder.

[0014] Preferably, it also includes:

[0015] A second fixed frame, a second clamping cylinder is arranged on the second fixed frame, a second upper copper electrode plate is arranged at one end of the second clamping cylinder, a second lower copper electrode plate is arranged at the other end of the second clamping cylinder, the second upper copper electrode plate and the second lower copper electrode plate are connected to the output end of the transformer, and are used for clamping the other side of the steel plate to be heated under the action of the second clamping cylinder.

[0016] Preferably, a copper water cooling pipeline is welded on each copper electrode plate to pass cooling water to cool the copper electrode plate.

[0017] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0018] The utility model provides a plate heating device. Compared with the prior art, the utility model clamps the steel plate to be heated by using a heating pole assembly so that the steel plate to be heated is continuously heated by passing electric current, thereby reducing the surface oxidation of the steel after heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 A schematic diagram of a plate heating device provided by the utility model;

[0021] Figure 2 The integrated schematic diagram of the heating control unit provided by the utility model;

[0022] Figure 3 A schematic diagram of a heating electrode assembly provided by the utility model;

[0023] Figure 4 This is a schematic diagram of the copper electrode plate provided by the utility model.

[0024] Explanation of symbols:

[0025] 201. Power cord; 202. Microcontroller; 203. Thyristor; 204. Transformer; 205. Selection switch; 206. Electrode terminal; 301. First fixed frame; 302. First clamping cylinder; 303. First upper copper electrode plate; 304. First lower copper electrode plate; 401. Electrode terminal; 402. Copper electrode plate; 403. Cylinder insulating connection pad; 404. Copper cooling water pipe. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0029] See also Figure 1-4 , a plate heating device, comprising: a heating control unit integration, a heating pole assembly and a temperature measuring device.

[0030] The heating control unit is integrated and connected to the heating pole assembly through a wire; the heating pole assembly is used to clamp the steel plate to be heated so that the steel plate to be heated is continuously heated by electric current; the temperature measuring device is integrated and connected to the heating control unit through a wire, and is used to collect temperature information of the steel plate to be heated and send the temperature information to the heating control unit.

[0031] Furthermore, the heating control unit is integrated, including:

[0032] A thyristor assembly consisting of two thyristors connected in parallel, one end of the thyristor assembly is connected to a 380V single-phase power line, and the other end of the thyristor assembly is connected to the input end of a transformer 204; the output end of the transformer 204 is connected to the heating electrode assembly;

[0033] The microcontroller 202 is connected to the control terminal of the thyristor component and is used to adjust the voltage of the input transformer 204 .

[0034] Wherein, the heating electrode assembly comprises:

[0035] A first fixed frame 301 is provided with a first clamping cylinder 302, one end of the first clamping cylinder 302 is provided with a first upper copper electrode plate 303, and the other end of the first clamping cylinder 302 is provided with a first lower copper electrode plate 304, the first upper copper electrode plate 303 and the first lower copper electrode plate 304 are connected to the output end of the transformer 204, and are used for clamping one side of the steel plate to be heated under the action of the first clamping cylinder 302.

[0036] A second fixed frame, on which a second clamping cylinder is arranged, a second upper copper electrode plate is arranged at one end of the second clamping cylinder, a second lower copper electrode plate is arranged at the other end of the second clamping cylinder, the second upper copper electrode plate and the second lower copper electrode plate are connected to the output end of the transformer 204, and are used for clamping the other side of the steel plate to be heated under the action of the second clamping cylinder.

[0037] It should be noted that a copper water cooling pipeline is welded on each copper electrode plate to pass cooling water to cool the copper electrode plate.

[0038] The present invention will be further described below in conjunction with specific embodiments:

[0039] The principle of the utility model is to use transformer 204 to convert the power frequency 380V voltage into low voltage and high current to heat the plate and strip, and to switch the upper and lower copper electrodes through different selection switches 205 to achieve full body heating or surface heating of the steel plate. It is mainly composed of ① heating control unit integration (the heating control unit is integrated into a box by microcontroller 202, thyristor assembly, transformer 204), ② heating pole assembly, ③ temperature measuring device, and the main functions and connection methods of each part are as follows:

[0040] The heating control unit is integrated mainly including a microcontroller 202, a thyristor component, and a transformer 204. Figure 2 , 380V power supply terminals and electrode terminals 206 are reserved on the outside, the microcontroller 202 in the integrated box reserves the temperature measuring device wiring signal terminals, and the selection switch 205 is installed at the corresponding position of the electrode terminal 206 to switch on and off the corresponding electrode terminal 206 current.

[0041] 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 according to the actual temperature. It has a PID adjustment unit, which has a control function for the thyristor. It has a temperature measurement unit module, which has the functions of measuring and calibrating temperature. The temperature measurement device is connected to the temperature measurement unit module through a wire, and is connected to the thyristor control pole through a wire.

[0042] The thyristor assembly mainly realizes power adjustment. The thyristor assembly includes two groups of thyristors connected in parallel. One side of the thyristors 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 and conduction of electric energy.

[0043] Transformer 204 mainly realizes power transmission, converts 380V power frequency voltage power into low voltage and high current power for transmission, its primary side is connected to one side of the thyristor 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 electrode terminal through the selection switches 1 and 2, and the other side of the secondary side is connected to the corresponding electrode terminal through the selection switches 3 and 4, so as to realize power transmission.

[0044] The temperature measuring device mainly measures the temperature of the heated steel plate and transmits the actual temperature to the microcontroller 202. It is connected to the temperature measuring module of the microcontroller 202 with a shielded signal line.

[0045] The heating electrode assembly includes an electrode plate, a pneumatic clamping device, a copper tube water cooling pipeline, and a structural frame, such as Figure 3 The main purpose is to conduct large current to the steel plate, so that the steel piece is continuously heated by large current, and it is connected to the transformer 204 through a cable. The electrode plate structure, such as Figure 4 The electrode plate is made of copper to ensure its good conductivity. A copper tube water-cooling pipeline is welded on it to pass cooling water to cool the heated copper electrode. The pneumatic clamping device is controlled by a cylinder and is connected to the heating electrode with an insulating material to clamp the heated steel plate. The water-cooling pipeline is made of copper and is welded to the copper electrode plate. The structural frame is made of stainless steel and its main function is to fix it.

[0046] The specific heating method and steps are as follows: fix the steel plate to be heated with the heating electrode assembly, pass compressed air through the compression cylinder, and press and release the steel plate through the control switch to ensure that the steel plate and the electrode are in full contact without gaps. The heating electrode assembly is cooled with tap water to ensure stable and unobstructed water flow.

[0047] The power connection terminal of the integrated box of the heating control unit is connected to the 380V power supply, and the electrode terminal is connected to the electrode terminal of the heating copper electrode plate.

[0048] The temperature measuring device is connected to the microcontroller temperature measuring module.

[0049] Turn on all the selection switches to achieve full heating of the steel plate.

[0050] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects:

[0051] The utility model provides a plate heating device. Compared with the prior art, the utility model clamps the steel plate to be heated by using a heating pole assembly so that the steel plate to be heated is continuously heated by passing electric current, thereby reducing the surface oxidation of the steel after heating.

[0052] 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 plate heating device, characterized in that: include: The heating control unit is integrated and connected to the heating pole assembly through a wire; The heating electrode assembly is used to clamp the steel plate to be heated so that the steel plate to be heated is continuously heated by electric current; The temperature measuring device is connected to the heating control unit through a wire, and is used to collect temperature information of the steel plate to be heated and send the temperature information to the heating control unit.

2. A plate heating device as claimed in claim 1, characterized in that: The heating control unit is integrated, comprising: A thyristor assembly consisting of two thyristors connected in parallel, one end of the thyristor assembly is connected to a 380V single-phase power line, and the other end of the thyristor assembly is connected to the input end of a transformer; the output end of the transformer is connected to the heating electrode assembly; The microcontroller is connected to the control end of the thyristor component and is used to adjust the magnitude of the input transformer voltage.

3. A plate heating device as claimed in claim 2, characterized in that: The heating electrode assembly comprises: A first fixed frame, on which a first clamping cylinder is arranged, a first upper copper electrode plate is arranged at one end of the first clamping cylinder, a first lower copper electrode plate is arranged at the other end of the first clamping cylinder, the first upper copper electrode plate and the first lower copper electrode plate are connected to the output end of the transformer, and are used for clamping one side of the steel plate to be heated under the action of the first clamping cylinder.

4. A plate heating device as claimed in claim 3, characterized in that: Also includes: A second fixed frame, a second clamping cylinder is arranged on the second fixed frame, a second upper copper electrode plate is arranged at one end of the second clamping cylinder, a second lower copper electrode plate is arranged at the other end of the second clamping cylinder, the second upper copper electrode plate and the second lower copper electrode plate are connected to the output end of the transformer, and are used for clamping the other side of the steel plate to be heated under the action of the second clamping cylinder.

5. A plate heating device as claimed in claim 4, characterized in that: A copper water cooling pipeline is welded on each copper electrode plate to pass cooling water to cool the copper electrode plate.

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