Water-cooling type electromagnetic heating roller

Abstract

The utility model relates to the technical field of electromagnetic heating, and discloses a water cooling type electromagnetic heating roller which comprises a main body mechanism, a heating mechanism and a detection mechanism, the main body mechanism is located in the heating mechanism, the detection mechanism is located on the surface of the heating mechanism, and the main body mechanism comprises a shaft head. And the outer side surface of the shaft head is fixedly connected with a collecting ring, a water inlet pipe is arranged in the shaft head, and the outer side surface of the shaft head is rotationally connected with a bearing. By arranging the sleeve test tube, when the electric heating roller is heated and the temperature of the inner coil tube and the outer roller on the outer side is too high, an external water source is connected into the water inlet pipe, the water source enters the water storage tank from the water inlet pipe, and when the water storage tank is full of water, the water source enters the water pipe with the sleeve from the water storage tank; and then the water source which absorbs enough heat flows out from the water outlet pipe, and the whole device carries out the internal heat along with continuous injection of the water source, so that water cooling is carried out on the whole device.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic heating, in particular to a water-cooled electromagnetic heating roller. Background Art

[0002] Electromagnetic heating roller is a heating roller made according to the principle of electromagnetic induction heating metal. When the magnetic flux passing through the closed loop changes, a current is generated in the loop. This phenomenon is called electromagnetic induction. The current generated by the loop is called induced current (or induced current). If a metal object is placed in a magnetic field, or it cuts the magnetic lines of force in a magnetic field, an induced current will be generated inside it, usually called eddy current (abbreviated as eddy current). Since the resistance of metal is very small, the eddy current is generally very large, so the metal block will heat up quickly. This phenomenon is generally called eddy current thermal effect. Electromagnetic heating rollers are mainly made of metal materials with good thermal conductivity, such as high-quality steel, and have the advantages of fast heating speed, high thermal efficiency, energy saving and environmental protection. Compared with traditional thermal oil heating rollers, electromagnetic heating rollers have the advantages of high temperature, good temperature uniformity, easy maintenance, low energy consumption, and no pollution. Electromagnetic heating rollers can be used in the calendering and shaping of various sheets, surface calendering of textiles and foaming materials, hot pressing and laminating of films and various substrates, drying and stretching of special paper and other materials, and hot embossing of optical anti-counterfeiting laser materials, etc., which have good effects on improving product quality, reducing energy consumption, and improving the production environment. They are widely used in the steel, machinery, textile, papermaking and other industries.

[0003] During the heating process of the electromagnetic heating roller, the internal temperature will reach 350 degrees Celsius to 400 degrees Celsius, which can easily cause damage to the precision internal parts. Therefore, after the temperature of the heating roller reaches a certain level, the entire heating roller needs to be cooled to extend the service life of the parts. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a water-cooled electromagnetic heating roller, comprising a main body mechanism, a heating mechanism and a detection mechanism, wherein the main body mechanism is located inside the heating mechanism, and the detection mechanism is located on the surface of the heating mechanism;

[0005] The main body mechanism includes a shaft head, a collector ring is fixedly connected to the outer surface of the shaft head, a water inlet pipe is arranged inside the shaft head, a bearing is rotatably connected to the outer surface of the shaft head, the top of the water inlet pipe is fixedly connected to a water tank, one end of the water tank is fixedly connected to a sleeve water pipe, and a water outlet pipe is fixedly connected inside the sleeve water pipe.

[0006] Through the above technical scheme, when the electric heating roller is heating, if the temperature of the internal coil tube and the outer roller is too high, the external water source is connected to the inside of the water inlet pipe, and the water source enters the water tank from the water inlet pipe. When the water tank is full of water, the water source enters the water pipe with sleeve from the inside of the water tank to bring out the internal heat. Then the water source that has absorbed enough heat flows out from the water outlet pipe. On the outside of the overall device, as the water source is continuously injected, the internal heat is brought out and the device is cooled by water.

[0007] As a further improvement of the above scheme, the number of the shaft heads is set to two, and the two shaft heads are evenly distributed on both sides symmetrically with the center of the sleeve water pipe surface, the collector ring is arranged on the outer surface of the shaft head, the bearing is arranged on the inner surface of the shaft head, the water inlet pipe passes through the shaft head, and the water outlet pipe is arranged inside the right shaft head, and the water outlet pipe passes through the shaft head.

[0008] As a further improvement of the above scheme, the heating mechanism includes an outer roller, flange covers are provided at both ends of the outer roller, a coil tube is provided inside the outer roller, an electromagnetic coil is provided on the surface of the coil tube, and a protective mesh cover is fixedly connected to the outer surface of the coil tube.

[0009] As a further improvement of the above scheme, the shaft head is arranged at both ends of the outer roller, the number of the flange covers is set to two, and the two flange covers are evenly distributed on the surfaces of both ends of the outer roller symmetrically about the center of the outer roller surface, the coil tube is arranged inside the sleeve water pipe, the electromagnetic coil is arranged inside the protective mesh cover, and the sleeve water pipe is arranged inside the outer roller.

[0010] As a further improvement of the above scheme, the detection mechanism includes a fixed base, a placement groove is opened inside the fixed base, a temperature insulation board is fixedly connected to the surface of the placement groove, and a temperature sensor is fixedly connected to the bottom of the temperature insulation board.

[0011] Through the above technical solution, the overall temperature is detected by a temperature sensor to control the progress of water cooling, and a thermal insulation plate is added inside the placement slot to prevent the temperature sensor from being damaged in a high temperature environment.

[0012] As a further improvement of the above solution, the top of the fixed base is fixedly connected to the outer surface of the outer roller, and the insulation plate surrounds the placement groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model arranges a sleeve test tube. When the electric heating roller is heated and the temperature of the internal coil tube and the outer roller is too high, an external water source is connected to the inside of a water inlet pipe, and the water source enters into a water storage tank from the water inlet pipe. When the water storage tank is full of water, the water source enters into the water pipe with the sleeve from the inside of the water storage tank to bring out the internal heat. Subsequently, the water source that has absorbed enough heat flows out from the water outlet pipe. As the water source is continuously injected into the outside of the overall device, the internal heat is brought out and the device is cooled by water.

[0015] The utility model sets a temperature sensor to detect the overall temperature through the temperature sensor so as to control the progress of water cooling, and adds a temperature insulation board inside the placement slot to avoid damage to the temperature sensor in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 For the utility model as a whole Figure 2 A is an enlarged schematic diagram of the structure;

[0019] Figure 4 For the utility model as a whole Figure 2 A schematic diagram of the enlarged structure at B;

[0020] Figure 5 It is a schematic diagram of the internal structure of the overall detection mechanism of the utility model.

[0021] In the figure: 1. Main body; 101. Shaft head; 102. Collector ring; 103. Water inlet pipe; 104. Bearing; 105. Water storage tank; 106. Sleeve water pipe; 107. Water outlet pipe; 2. Heating mechanism; 201. Outer roller; 202. Flange cover; 203. Coil cylinder; 204. Electromagnetic coil; 205. Protective mesh cover; 3. Detection mechanism; 301. Fixed base; 302. Placement slot; 303. Insulation board; 304. Temperature sensor. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example 1

[0023] Please combine Figure 1-5A water-cooled electromagnetic heating roller of this embodiment includes a main body mechanism 1, a heating mechanism 2 and a detection mechanism 3, wherein the main body mechanism 1 is located inside the heating mechanism 2, and the detection mechanism 3 is located on the surface of the heating mechanism 2;

[0024] The main body mechanism 1 includes a shaft head 101, the outer surface of the shaft head 101 is fixedly connected to a collector ring 102, a water inlet pipe 103 is arranged inside the shaft head 101, the outer surface of the shaft head 101 is rotatably connected to a bearing 104, the top of the water inlet pipe 103 is fixedly connected to a water tank 105, one end of the water tank 105 is fixedly connected to a sleeve water pipe 106, and the inside of the sleeve water pipe 106 is fixedly connected to a water outlet pipe 107.

[0025] There are two shaft heads 101, which are evenly distributed on both sides symmetrically with respect to the center of the surface of the sleeve water pipe 106, the collector ring 102 is arranged on the outer surface of the shaft head 101, the bearing 104 is arranged on the inner surface of the shaft head 101, the water inlet pipe 103 passes through the shaft head 101, and the water outlet pipe 107 is arranged inside the right shaft head 101, and the water outlet pipe 107 passes through the shaft head 101.

[0026] The heating mechanism 2 comprises an outer roller 201 , flange covers 202 are arranged at both ends of the outer roller 201 , a coil drum 203 is arranged inside the outer roller 201 , an electromagnetic coil 204 is arranged on the surface of the coil drum 203 , and a protective mesh cover 205 is fixedly connected to the outer surface of the coil drum 203 .

[0027] The shaft head 101 is arranged at both ends of the outer roller 201, and there are two flange covers 202. The two flange covers 202 are evenly distributed on the surfaces of both ends of the outer roller 201 symmetrically around the center of the surface of the outer roller 201, the coil tube 203 is arranged inside the sleeve water pipe 106, the electromagnetic coil 204 is arranged inside the protective mesh cover 205, and the sleeve water pipe 106 is arranged inside the outer roller 201.

[0028] The detection mechanism 3 includes a fixed base 301 , a placement groove 302 is provided inside the fixed base 301 , a temperature insulation board 303 is fixedly connected to the surface of the placement groove 302 , and a temperature sensor 304 is fixedly connected to the bottom of the temperature insulation board 303 .

[0029] The top of the fixed base 301 is fixedly connected to the outer surface of the outer roller 201 , and the temperature insulation plate 303 surrounds the placement groove 302 .

[0030] The implementation principle of a water-cooled electromagnetic heating roller in the embodiment of the present application is as follows: when the electric heating roller is heated, if the temperature of the internal coil tube and the outer roller 201 is too high, first connect the external water source to the inside of the water inlet pipe 103, and the water source enters the water tank 105 from the water inlet pipe 103. When the water tank 105 is full of water, the water source enters the inside of the sleeve water pipe 106 from the inside of the water tank 105 to bring out the internal heat. Subsequently, the water source that has absorbed enough heat flows out from the water outlet pipe 107. On the outside of the overall device, as the water source is continuously injected, the internal heat is brought out and the device is cooled by water. A temperature sensor 304 is provided to detect the overall temperature by the temperature sensor 304 to control the water cooling operation. An insulation plate 303 is added inside the placement slot 302 to prevent the temperature sensor 304 from being damaged in a high temperature environment.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A water-cooled electromagnetic heating roller, characterized in that: It comprises a main body mechanism (1), a heating mechanism (2) and a detection mechanism (3), wherein the main body mechanism (1) is located inside the heating mechanism (2), and the detection mechanism (3) is located on the surface of the heating mechanism (2); The main body mechanism (1) comprises a shaft head (101), the outer surface of the shaft head (101) is fixedly connected to a collector ring (102), a water inlet pipe (103) is arranged inside the shaft head (101), the outer surface of the shaft head (101) is rotatably connected to a bearing (104), the top of the water inlet pipe (103) is fixedly connected to a water storage tank (105), one end of the water storage tank (105) is fixedly connected to a sleeve water pipe (106), and the sleeve water pipe (106) is fixedly connected to a water outlet pipe (107) inside.

2. A water-cooled electromagnetic heating roller according to claim 1, characterized in that: The number of the shaft heads (101) is two, and the two shaft heads (101) are evenly distributed on both sides symmetrically with respect to the center of the surface of the sleeve water pipe (106), the collector ring (102) is arranged on the outer surface of the shaft head (101), the bearing (104) is arranged on the inner surface of the shaft head (101), the water inlet pipe (103) passes through the shaft head (101), and the water outlet pipe (107) is arranged inside the right shaft head (101), and the water outlet pipe (107) passes through the shaft head (101).

3. The water-cooled electromagnetic heating roller according to claim 1, characterized in that: The heating mechanism (2) comprises an outer roller (201), flange covers (202) are provided at both ends of the outer roller (201), a coil drum (203) is provided inside the outer roller (201), an electromagnetic coil (204) is provided on the surface of the coil drum (203), and a protective mesh cover (205) is fixedly connected to the outer surface of the coil drum (203).

4. A water-cooled electromagnetic heating roller according to claim 3, characterized in that: The shaft head (101) is arranged at both ends of the outer roller (201), the number of the flange covers (202) is two, and the two flange covers (202) are evenly distributed on the surfaces of both ends of the outer roller (201) symmetrically around the center of the surface of the outer roller (201), the coil barrel (203) is arranged inside the sleeve water pipe (106), the electromagnetic coil (204) is arranged inside the protective mesh cover (205), and the sleeve water pipe (106) is arranged inside the outer roller (201).

5. The water-cooled electromagnetic heating roller according to claim 1, characterized in that: The detection mechanism (3) comprises a fixed base (301), a placement groove (302) is provided inside the fixed base (301), a temperature insulation board (303) is fixedly connected to the surface of the placement groove (302), and a temperature sensor (304) is fixedly connected to the bottom of the temperature insulation board (303).

6. A water-cooled electromagnetic heating roller according to claim 5, characterized in that: The top of the fixed base (301) is fixedly connected to the outer surface of the outer roller (201), and the temperature insulation plate (303) surrounds the placement groove (302).

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