Electromagnetic induction heating roller temperature overheating protection device

Abstract

The utility model relates to the technical field of electromagnetic induction heating rollers, and discloses an electromagnetic induction heating roller overheat protection device which comprises a mounting frame and an electromagnetic heating roller, and heat insulation covers are rotatably mounted on the two sides of the mounting frame; a driving motor is arranged on the mounting frame, a first threaded rod is fixedly mounted at the output end of the shaft part of the driving motor, a first nut pair is mounted on the first threaded rod through threads, and a fixing plate is fixedly mounted on the first nut pair; two mounting plates are fixedly mounted on the fixing plate, and temperature sensors are arranged on the mounting plates; an opening mechanism is arranged on the fixing plate; a fixing block is fixedly installed on the fixing plate, and a heat dissipation mechanism and a lifting mechanism are arranged on the fixing block. Through the design of dynamic temperature monitoring, efficient heat dissipation, automatic opening and closing of the thermal insulation cover and the cleaning brush ring, the heating efficiency and safety are remarkably improved, the service life of equipment is remarkably prolonged, meanwhile, the maintenance cost is reduced, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic induction heating roller technology, specifically to an electromagnetic induction heating roller overheat protection device. Background Technology

[0002] Electromagnetic induction heating technology is a heating method that uses an alternating magnetic field to generate eddy currents in a conductor, which are then converted into heat energy. This technology has advantages such as fast heating speed, high efficiency, and precise temperature control, and is widely used in industries such as plastics processing, textile printing and dyeing, paper processing, food processing, metal processing, printing and coating. Electromagnetic induction heating rollers are one of the important applications of this technology. By setting electromagnetic induction coils inside the roller, rapid and uniform heating of the roller surface can be achieved.

[0003] Despite the numerous advantages of electromagnetic induction heating technology, in practical applications, improper operation, equipment malfunction, or control system failure can lead to abnormally high temperatures in the heating rollers. Excessive temperature not only affects product quality and production efficiency but can also cause serious damage to the equipment itself and even lead to safety accidents.

[0004] However, existing over-temperature protection devices have the following problems in use: Existing over-temperature protection devices for heating rollers typically use thermistors (for severe overheating) or fuses for over-temperature protection. However, this method has significant shortcomings: each time the over-temperature protection is triggered, the thermistor or fuse needs to be replaced, which not only increases maintenance costs but may also lead to production interruptions. Furthermore, these devices lack effective cooling measures and can only rely on natural cooling, resulting in long recovery times and low efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing an electromagnetic induction heating roller overheat protection device. Through the design of dynamic temperature monitoring, efficient heat dissipation, automatic opening and closing of the insulation cover and cleaning brush ring, it significantly improves heating efficiency, safety and equipment life, while reducing maintenance costs and improving production efficiency and product quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An overheat protection device for an electromagnetic induction heating roller includes a mounting frame and an electromagnetic heating roller, with heat insulation covers rotatably mounted on both sides of the mounting frame.

[0008] The mounting bracket is equipped with a drive motor, and a first threaded rod is fixedly installed on the output end of the shaft of the drive motor. A first nut pair is installed on the first threaded rod by thread, and a fixing plate is fixedly installed on the first nut pair.

[0009] The fixing plate is fixedly provided with two installation plates, and a temperature sensor is arranged on the installation plate.

[0010] The fixing plate is provided with an opening mechanism.

[0011] The fixing plate is fixedly provided with a fixing block, and a heat dissipation mechanism and a lifting mechanism are arranged on the fixing block.

[0012] Preferably, the heat dissipation mechanism comprises a hollow arc block, the hollow arc block is slidingly installed on the fixing block, the inside of the hollow arc block is a hollow cavity, a heat dissipation fan is inlaidly installed in the inside of the hollow arc block, and jet ports are inlaidly installed on the side of the hollow arc block, which faces the installation frame, at equal intervals.

[0013] Preferably, the front end and the rear end of the hollow arc block are fixedly provided with cleaning brush rings, and the cleaning brush rings can directly contact the electromagnetic heating roller.

[0014] Preferably, the lifting mechanism comprises a servo motor, the servo motor is installed on the fixing plate, a rotating rod is fixedly installed on the shaft output end of the servo motor, a second threaded rod is fixedly installed on the other end of the rotating rod, the second threaded rod is rotationally installed on the fixing block, a second nut pair is fixedly installed on the second threaded rod in a threaded manner, and the second nut pair is fixedly connected with the hollow arc block.

[0015] Preferably, the opening mechanism comprises a driving gear and toothed plates, the number of the toothed plates is two, the two toothed plates are slidingly installed on the fixing plate, the other end of the toothed plate is fixedly provided with a jacking block, and the driving gear is fixedly installed on the rotating rod.

[0016] Preferably, the driving gear and the two toothed plates are in meshing relationship.

[0017] Preferably, the jacking block can directly contact the heat insulation cover and drive the heat insulation cover to rotate around the corresponding shaft body.

[0018] Preferably, the installation frame is fixedly provided with a limiting plate at a corresponding position, which is used to limit the movement of the heat insulation cover.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model discloses a mounting bracket, electromagnetic heating roller, drive motor, first threaded rod, first nut pair, fixed plate, mounting plate and temperature sensor are provided with, temperature sensor installs on the fixed plate, can with the temperature monitoring of different parts of heating roller of fixed plate's removal, this dynamic monitoring mode ensures the accuracy and comprehensiveness of temperature data, avoids the problem of partial overheating or temperature uneven, and temperature sensor and temperature control system electric connection, when detecting that temperature exceeds the preset threshold value, the system will stop heating or take other cooling measures, prevent the equipment damage caused by overheating. This real -time feedback mechanism improves the reliability and safety of system.

[0021] (2) The utility model discloses a temperature insulation cover and limit board are provided with, and the temperature insulation cover surrounds electromagnetic heating roller in a relatively closed space, on one hand, effectively reduces the heat loss to the outside, improves heating efficiency, plays the role of physical isolation, prevents the operator from accidentally contacting the high -temperature heating roller, reduces the probability of occurrence of scalding and other safety accidents.

[0022] (3) The utility model discloses a hollow arc block, cooling fan and jet port are provided with, and cooling fan blows the wind to heating roller surface through jet port, and the heat dissipation mechanism can remove with fixed plate, and the different parts of electromagnetic heating roller are carried out efficient passive heat dissipation, not only accelerate the cooling speed, but also reduce the cooling time, improve production efficiency.

[0023] (4) The utility model discloses a driving gear, toothed plate and jolt block are provided with, and the heat dissipation mechanism is descended while the lifting mechanism, will synchronous drive rotary rod rotation, drive driving gear rotation to slide toothed plate along fixed plate, and jolt block can rotate temperature insulation cover, make electromagnetic heating roller smoothly in the space of baring, thereby guaranteeing the effect of electromagnetic heating roller 2 heat dissipation.

[0024] (5) The utility model discloses a cleaning brush ring, and the hollow arc block can move with electromagnetic heating roller relative motion when moving, removes the dirt and residual (colloid, oil stain etc.) on the surface of electromagnetic heating roller, ensures the heat dissipation effect and the cleanliness of equipment. SHEET DESCRIPTION

[0025] Figure 1 The utility model provides a kind of electromagnetic induction heating roller temperature overheating protection device schematic diagram for the utility model proposes;

[0026] Figure 2 The utility model provides a kind of electromagnetic induction heating roller temperature overheating protection device mounting rack internal structure schematic diagram for the utility model proposes;

[0027] Figure 3 The utility model provides a kind of electromagnetic induction heating roller temperature overheating protection device heat dissipation mechanism removal principle schematic diagram for the utility model proposes;

[0028] Figure 4 A kind of electromagnetic induction heating roller temperature overheating protection device heat dissipation mechanism schematic view is proposed for the utility model;

[0029] Figure 5 A kind of electromagnetic induction heating roller temperature overheating protection device lifting mechanism schematic view is proposed for the utility model;

[0030] Figure 6 A kind of electromagnetic induction heating roller temperature overheating protection device opening mechanism schematic view is proposed for the utility model.

[0031] In the drawing: 1, mounting frame;2, electromagnetic heating roller;3, temperature insulation cover;4, limit plate;5, drive motor;6, first threaded rod;7, first nut pair;8, fixed plate;9, mounting plate;10, temperature sensor;11, fixed block;12, rotating rod;13, second threaded rod;14, hollow arc block;15, heat dissipation fan;16, air jet;17, cleaning brush ring;18, toothed plate;19, top block;20, servo motor;21, second nut pair;22, driving gear. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0033] Please refer to Figures 1 to 6 An electromagnetic induction heating roller temperature overheating protection device, including mounting frame 1 and electromagnetic heating roller 2, mounting frame 1 is fixed on workbench, supports the whole device, ensures the stability and safety of equipment, electromagnetic heating roller 2 is rotatably installed on workbench, for heating material, realizes production activity.

[0034] Temperature insulation cover 3 is rotatably installed on the two sides of mounting frame 1, temperature insulation cover 3 is installed on the two sides of mounting frame 1, plays the role of heat insulation, when electromagnetic heating roller 2 is normally used, electromagnetic heating roller 2 can be in relatively closed space, on the one hand, heat loss can be avoided, heating speed is improved, on the other hand, operating personnel can be separated from high-temperature equipment, the safety of operating personnel is ensured.

[0035] As preferred, torsional spring can be provided on the rotating shaft of temperature insulation cover 3, so as to ensure the sealing effect of temperature insulation cover 3.

[0036] Drive motor 5 is provided on mounting frame 1, the shaft part output end of drive motor 5 is fixedly installed with first threaded rod 6, first threaded rod 6 is installed with first nut pair 7 on the threaded, first nut pair 7 is fixedly installed with fixed plate 8;

[0037] The starting of the driving motor 5 can make the first threaded rod 6 rotate, the rotation of the first threaded rod 6 makes the first nut pair 7 advance or retreat, and then drives the fixed plate 8 to move synchronously. Two mounting plates 9 are fixedly installed on the fixed plate 8, and a temperature sensor 10 is arranged on the mounting plate 9;

[0038] The temperature sensor 10 is used to monitor the temperature of the electromagnetic heating roller 2 in real time, to ensure the accuracy of temperature control, and the temperature sensor 10 can move with the fixed plate 8, so that the temperature of different parts of the electromagnetic heating roller 2 can be monitored, and the temperature sensor 10 is electrically connected with the temperature control system of the electromagnetic heating roller 2, when the temperature sensor 10 detects that the temperature on the electromagnetic heating roller 2 reaches a specified threshold, the temperature control system is controlled to stop heating, so as to achieve the effect of overheat protection.

[0039] An opening mechanism is arranged on the fixed plate 8, which is used to automatically open the temperature insulation covers 3 on both sides, so that the electromagnetic heating roller 2 is smoothly placed in the exposed space, thereby ensuring the heat dissipation effect of the electromagnetic heating roller 2;

[0040] A fixed block 11 is fixedly installed on the fixed plate 8, and a heat dissipation mechanism and a lifting mechanism are arranged on the fixed block 11, the lifting mechanism is used to ensure that the heat dissipation mechanism does not contact the electromagnetic heating roller 2 when the electromagnetic heating roller 2 rotates quickly, thereby ensuring the normal service life of the heat dissipation mechanism.

[0041] When heat dissipation is needed, the lifting mechanism makes the heat dissipation mechanism descend and approximately adhere to the electromagnetic heating roller 2, thereby achieving the effect of heat dissipation.

[0042] The heat dissipation mechanism includes a hollow arc block 14, which is slidingly installed on the fixed block 11, the inside of the hollow arc block 14 is a hollow cavity, a heat dissipation fan 15 is embeddedly installed in the inside of the hollow arc block 14, and a plurality of air outlet ports 16 are embeddedly installed on one side of the hollow arc block 14, which faces the mounting frame 1, and are equidistant and uniform.

[0043] When heat dissipation is performed, the hollow arc block 14 slides along the fixed block 11 and approaches the electromagnetic heating roller 2, then the heat dissipation fan 15 is started to blow air (or suck air, which needs to be adjusted according to actual needs) to the surface of the electromagnetic heating roller 2 through the air outlet ports 16, to perform heat dissipation and ensure passive heat dissipation of the electromagnetic heating roller 2 and rapid temperature reduction.

[0044] Cleaning brush rings 17 are fixedly installed at the front and rear ends of the hollow arc block 14, the cleaning brush rings 17 can directly contact the electromagnetic heating roller 2, when the hollow arc block 14 moves, the cleaning brush rings 17 can relatively move with the electromagnetic heating roller 2, to remove dirt and residues (gel, oil stains, etc.) on the surface of the electromagnetic heating roller 2, thereby ensuring the heat dissipation effect and the cleanliness of the equipment.

[0045] As preferred, the cleaning brush ring 17 can be used in cooperation with the cleaning agent, further improving the cleaning effect.

[0046] The lifting mechanism comprises a servo motor 20, the servo motor 20 is installed on the fixed plate 8, the shaft part output end of the servo motor 20 is fixedly installed with a rotating rod 12, the other end of the rotating rod 12 is fixedly installed with a second threaded rod 13, the second threaded rod 13 is rotatably installed on the fixed block 11, and the second threaded rod 13 is fixedly installed with a second nut pair 21 through threads, and the second nut pair 21 is fixedly connected with the hollow arc block 14.

[0047] The starting of the servo motor 20 makes the rotating rod 12 rotate, the rotation of the second threaded rod 13 makes the second nut pair 21 move along the threaded direction, drives the hollow arc block 14 to adjust the position, approaches or moves away from the electromagnetic heating roller 2, and ensures that the heat dissipation device is in the correct position at the correct time.

[0048] The opening mechanism comprises a driving gear 22 and a toothed plate 18, the number of the toothed plates 18 is two, the two toothed plates 18 are slidably installed on the fixed plate 8, the other end of the toothed plate 18 is fixedly installed with a top driving block 19, and the driving gear 22 is fixedly installed on the rotating rod 12.

[0049] The driving gear 22 is in meshing relationship with the two toothed plates 18. The top driving block 19 can be in direct contact with the heat insulation cover 3 and drive the heat insulation cover 3 to rotate around the corresponding shaft body.

[0050] The starting of the servo motor 20 drives the rotating rod 12 to rotate, simultaneously drives the driving gear 22 to rotate, the rotation of the driving gear 22 makes the toothed plate 18 move along the fixed plate 8, and the two toothed plates 18 synchronously approach or move away, when the two toothed plates 18 move away from each other, the top driving block 19 can be in contact and push the heat insulation cover 3 to rotate, ensure that the heat insulation cover 3 is unfolded, so that the space (i.e. the electromagnetic heating roller 2) in the mounting frame 1 is exposed, and heat dissipation activity is facilitated.

[0051] The mounting frame 1 is fixedly installed with a limiting plate 4 for limiting the movement of the heat insulation cover 3 at the corresponding position, the limiting plate 4 is used to limit the rotation angle of the heat insulation cover 3, so that the heat insulation cover 3 can smoothly block the exposed space.

[0052] The working process of the utility model; the heat insulation cover 3 shields both sides of the mounting frame 1 in the initial state, plays a heat insulation role, ensures that the electromagnetic heating roller 2 is in a relatively closed space during normal use, avoids heat loss, improves the heating speed, and protects the safety of the operator at the same time.

[0053] The starting of the driving motor 5 can make the first threaded rod 6 rotate, and then drive the first nut pair 7 and the fixed plate 8 to advance or retreat, and the temperature sensor 10 can move together with the fixed plate 8, so that the temperature of different parts of the electromagnetic heating roller 2 can be detected.

[0054] The temperature sensor 10 is electrically connected with a temperature control system of the electromagnetic heating roller 2, when the temperature on the electromagnetic heating roller 2 reaches a specified threshold value, the temperature control system is controlled to stop heating, so that the effect of overheating protection is achieved.

[0055] At the same time, the servo motor 20 is started, the servo motor 20 is started, the rotating rod 12 is driven to rotate, the second threaded rod 13 is driven to rotate, the rotation of the second threaded rod 13 makes the second nut pair 21 move along the threaded direction, and the hollow arc block 14 is adjusted in position, the hollow arc block 14 slides along the fixed block 11, approaches the electromagnetic heating roller 2, the heat dissipation fan 15 is started, blows air (or air suction, according to actual needs) to the surface of the electromagnetic heating roller 2 through the air outlet 16, and performs heat dissipation, so as to ensure that the temperature is quickly reduced.

[0056] At the same time, the servo motor 20 is started, the rotating rod 12 is driven to rotate, the driving gear 22 is driven to rotate, the rotation of the driving gear 22 makes the toothed plate 18 slide along the fixed plate 8, the knock block 19 pushes the temperature insulation cover 3 to rotate, the knock block 19 contacts the temperature insulation cover 3, pushes the temperature insulation cover 3 to rotate around the corresponding shaft body, opens the temperature insulation cover 3, and the electromagnetic heating roller 2 is exposed in the open space, so that the heat dissipation activity is quickly carried out.

[0057] The starting of the driving motor 5 can make the fixed plate 8 advance or retreat, and the heat dissipation device can move together with the fixed plate 8, so that different parts of the electromagnetic heating roller 2 can be quickly passively heat dissipated.

[0058] At the same time, the cleaning brush ring 17 directly contacts the electromagnetic heating roller 2, and removes dirt and residues (such as colloids, oil stains, etc.) on the surface, so as to ensure the heat dissipation effect and the cleaning of the equipment.

[0059] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic induction heating roller temperature overheating protection device, comprising a mounting frame (1) and an electromagnetic heating roller (2), characterized in that, The temperature insulation cover (3) is rotatably installed on both sides of the mounting frame (1); The mounting frame (1) is provided with a driving motor (5), the shaft output end of the driving motor (5) is fixedly installed with a first threaded rod (6), the first threaded rod (6) is threadedly installed with a first nut pair (7), and the first nut pair (7) is fixedly installed with a fixed plate (8); The fixed plate (8) is fixedly installed with two mounting plates (9), and the mounting plates (9) are provided with temperature sensors (10); The fixed plate (8) is provided with an opening mechanism; The fixed plate (8) is fixedly installed with a fixed block (11), and the fixed block (11) is provided with a heat dissipation mechanism and a lifting mechanism.

2. An electromagnetic induction heating roller temperature overheat protection device according to claim 1, characterized in that, The heat dissipation mechanism comprises a hollow arc block (14) which is slidingly installed on the fixed block (11), the inside of the hollow arc block (14) is a hollow cavity, the inside of the hollow arc block (14) is embeddedly installed with a heat dissipation fan (15), and the side of the hollow arc block (14) facing the mounting frame (1) is embeddedly installed with air outlets (16) at equal intervals.

3. An electromagnetic induction heating roller temperature overheat protection device according to claim 2, characterized in that, The front and rear ends of the hollow arc block (14) are fixedly installed with cleaning brush rings (17), and the cleaning brush rings (17) can directly contact the electromagnetic heating roller (2).

4. The electromagnetic induction heating roll temperature overheat protection device according to claim 1, characterized by The lifting mechanism comprises a servo motor (20) which is installed on the fixed plate (8), the shaft output end of the servo motor (20) is fixedly installed with a rotating rod (12), the other end of the rotating rod (12) is fixedly installed with a second threaded rod (13), the second threaded rod (13) is rotatably installed on the fixed block (11), the second threaded rod (13) is threadedly fixedly installed with a second nut pair (21), and the second nut pair (21) is fixedly connected with the hollow arc block (14).

5. The electromagnetic induction heating roll temperature overheat protection device according to claim 1, characterized in that, The opening mechanism comprises a driving gear (22) and a toothed plate (18), the number of the toothed plates (18) is two, the two toothed plates (18) are slidingly installed on the fixed plate (8), the other end of the toothed plate (18) is fixedly installed with a driving block (19), and the driving gear (22) is fixedly installed on the rotating rod (12).

6. An electromagnetic induction heating roller temperature overheat protection device according to claim 5, characterized in that, The driving gear (22) is in meshing relationship with the two toothed plates (18).

7. An electromagnetic induction heating roller temperature overheat protection device according to claim 5, characterized by The driving block (19) can directly contact the temperature insulation cover (3) and drive the temperature insulation cover (3) to rotate around the corresponding shaft body.

8. The electromagnetic induction heating roll temperature overheat protection device according to claim 1, characterized in that, The mounting frame (1) is fixedly installed with a limiting plate (4) at the corresponding position to limit the movement of the temperature insulation cover (3).

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